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Ganglion ng Flexor Tendon Sheath
A benign, fluid-filled cyst arising from the flexor tendon sheath – often painless, but can cause clicking or limited finger movement.
Ang iyong nararamdaman¶
Ang flexor tendon sheath ganglion ay isang maliit at matigas na bukol sa base ng isang daliri, sa palad. Karaniwan itong ilang milimetro lamang ang lapad, ngunit maaari itong sumakit nang higit sa inaasahan mo mula sa isang bagay na napakaliit. Dumarating ang sakit kapag humahawak ka ng isang bagay na matigas at makitid, tulad ng manibela, golf club, handlebar ng bisikleta o hawakan ng shopping bag. Naiipit ang bukol sa pagitan ng bagay at ng buto ng iyong daliri, nang walang anumang malambot na sasalo rito.
Ang sakit ay kadalasang sumisiklab habang o pagkatapos ng mga gawaing iyon na nangangailangan ng paghawak. Ang mga bagay tulad ng pagdadala ng mabibigat na pinamili, paghawak ng mga kasangkapan, o pagpiga ng nilabhang damit ay maaaring maging hindi komportable. Napapansin ng ilang tao na humuhupa ang kirot kapag binitawan na nila ang bagay. Ang bukol mismo ay matigas sa halip na malambot, at nakapuwesto mismo kung saan bumabaluktot ang iyong mga daliri papunta sa palad.
Dahil nakatali ang sakit sa paghawak, maaari nitong simulang limitahan ang mga nagagawa mo gamit ang kamay na iyon. Maaaring mapansin mong iniiwasan mo ang ilang partikular na gawain, o binabago mo ang paraan ng paghawak mo sa mga bagay upang hindi madiinan ang lugar na iyon.
Kung ang iyong daliri, kamay o braso ay kailanman maging mainit, mapula, namamaga at masakit, lalo na kung may lagnat, kailangan mong magpagamot sa isang emergency department sa mismong araw na iyon. Hindi mo kailangan ng referral mula sa iyong GP upang pumunta roon.
Ano ang aktwal na nangyayari¶
Bumabaluktot ang iyong daliri dahil sa dalawang tendon na tumatakbo mula sa iyong bisig (forearm), sa kahabaan ng bahagi ng palad ng daliri, at nakakabit sa buto ng daliri. Isipin mo ang mga ito bilang mga lubid na humihila kapag ibinabaluktot mo ang iyong daliri. Upang manatiling malapit sa buto ang mga lubid na iyon sa halip na umarko palayo rito, tumatakbo ang mga ito sa loob ng isang tunel na gawa sa matitibay na band na tinatawag na pulleys. Ang tunel na iyon ay may manipis at madulas na lining na nagbibigay ng sustansya sa mga tendon at nagpapanatili sa kanilang maayos na pagdausdos.
Ang flexor tendon sheath ganglion ay isang maliit na sac ng malapot, parang jelly na fluid na umuusli mula sa tunel na iyon. Napupuno ang sac mula sa mismong lining ng sheath, kaya kumikilos ito na parang maliit na tagas na nasa ilalim ng presyon: kapag na-drain ito, napupuno itong muli, dahil naroon pa rin ang tagas. Nakapuwesto ang sac mismo sa base ng daliri sa palad, kung saan mahigpit na nakakabit ang tunel sa buto nang walang malambot na sapin sa ibabaw nito. Iyon ang dahilan kung bakit ang isang bukol na ilang milimetro lamang ang lapad ay maaaring sumakit nang husto kapag humahawak ka: naiipit ang bukol sa pagitan ng anumang hawak mo at ng buto sa ilalim nito.
Ipinapaliwanag din ng parehong lugar ang iba pang mga bagay na maaaring napansin mo. Dahil kumukuha ng espasyo ang bukol sa loob ng isang makitid na tunel, maaari nitong masikipan ang tendon habang dumadausdos ito, kaya ang ilang taong may bukol sa lugar na ito ay nakakaranas din ng pagsabit o pagtunog (clicking) ng daliri. Ang mga kalapit na nerve ng daliri ay tumatakbo mismo sa tabi ng sheath, isa sa bawat panig, kaya ang bukol na dumidiin sa isang nerve ay maaaring magdulot ng pangingilig o pamamanhid at hindi lamang sakit.
Makabubuting malaman na ang bukol sa mismong lugar na ito ay maaari ring magmula sa ibang mga sanhi, tulad ng tendon na sumasabit habang dumadausdos, o pagkapal ng tissue ng palad na humihila sa daliri papunta sa palad. Karaniwang natutukoy ng iyong surgeon ang pagkakaiba ng mga ito sa pamamagitan ng pagsusuri sa iyong kamay, at magkakaiba ang paggamot sa bawat isa.
Ano ang maaari naming gawin tungkol dito¶
Si Dr Kieran Hirpara, isang upper-limb surgeon sa Mater Private Hospital Rockhampton, ay nagsisimula sa mga opsyon na hindi gaanong invasive na angkop sa iyong kondisyon. Ang mga pasyente ay karaniwang nirerefer sa aming klinika ng kanilang GP; kung iminungkahi ng isang physiotherapist na magpatingin sa amin, kakailanganin mo pa rin ng referral mula sa iyong GP upang maging eligible para sa Medicare rebate. Sa iyong appointment, kumukuha kami ng history, sinusuri ang iyong kamay, at nag-aayos ng imaging tulad ng ultrasound scan kung kailangan ito upang kumpirmahin kung ano ang bukol.
Dahil hindi mapanganib ang bukol na ito at hindi ito patuloy na lumalaki, ang paggamot ay ganap na nakadepende sa kung gaano ka nito naaabala. Ang bukol na nakakapa mo ngunit hindi masakit sa iyong karaniwang paghawak ay maaaring hindi na mangailangan ng anumang gawin. Kung ang isang partikular na paraan ng paghawak ay patuloy na nagdudulot ng sakit, maaaring sapat na ang pagbabago sa paraan ng paghawak mo sa mga bagay o ang pagbabawas muna sa gawaing iyon. Makatutulong din ang hand therapy upang makahanap ka ng mga paraan ng paggamit ng iyong kamay na hindi gaanong dumidiin sa lugar na iyon.
Ang pag-drain ng bukol gamit ang karayom, na tinatawag na aspiration, ay madalas na sinusubukan bago ang operasyon. Inaalis nito ang fluid sa sac, ngunit dahil pinupunan ng tendon sheath ang sac, karaniwan itong napupuno muli. Ang ilang bukol ay kusa ring humuhupa sa paglipas ng panahon. Pag-uusapan natin kung sulit bang subukan ang pag-drain sa iyong kaso.
Kung ang mga mas simpleng hakbang na ito ay hindi nagbigay sa iyo ng sapat na ginhawa, maaaring isaalang-alang ang operasyon. Tinatanggal ng operasyon ang bukol sa pamamagitan ng isang maliit na hiwa sa base ng daliri, kasama ang maliit na bahagi ng tendon sheath na pinagmumulan nito, na siyang pumipigil sa pagbalik nito. Karaniwan naming iminumungkahi ang operasyon kapag ang isang partikular at paulit-ulit na gawain sa iyong pang-araw-araw na buhay ay nalilimitahan ng sakit, at ginagawa namin ang desisyong iyon kasama ka.
Kung ang iyong daliri, kamay o braso ay kailanman maging mainit, mapula, namamaga at masakit, lalo na kung may lagnat, pumunta sa isang emergency department sa mismong araw na iyon.
Ano ang dapat asahan¶
Karamihan sa mga ganglion na tulad nito ay hindi mapanganib at hindi patuloy na lumalaki. Ang ilan ay kusang humuhupa sa paglipas ng panahon, at ang ilan ay lumilitaw at nawawala. Kung hindi masakit ang sa iyo, maaaring hindi mo na kailanganin ang anumang gamutan.
Kung masakit nga ang bukol kapag humahawak ka, makatutulong ang mga simpleng hakbang. Ang pag-drain nito gamit ang karayom ay nag-aalis ng laman ng sac, ngunit dahil pinupunan ng tendon sheath ang sac, karaniwan itong napupuno muli. Maaaring sapat na ang pagbabago sa paraan ng paghawak mo sa mga bagay, o ang pagbabawas sa gawaing nagpapasiklab dito, habang hinihintay mong makita kung huhupa ito.
Kung hindi sapat na nakatulong ang mga hakbang na iyon, tinatanggal ng operasyon ang bukol kasama ang maliit na bahagi ng sheath na pinagmumulan nito, na siyang pumipigil sa pagbalik nito. Napapansin ng karamihan na mas komportable na ang kanilang paghawak kapag hindi na naiipit ang lugar na iyon. Tulad ng anumang operasyon sa kamay, may mga panganib na dapat timbangin, kabilang ang isang manhid na bahagi sa isang gilid ng daliri, paninigas, impeksyon, at makapal o masakit na peklat. Pag-uusapan ng iyong surgeon ang mga ito kasama mo bago ka magpasya.
Ang paggaling pagkatapos ng operasyon ay inaabot ng ilang linggo sa halip na ilang araw. Masakit ang iyong kamay sa simula, at kakailanganin ng panahon para humupa ang maliit na hiwa sa base ng iyong daliri. Ang hand therapy pagkatapos ng operasyon ay kasama si Ruby Doolan sa Extend Rehabilitation. Si Ruby ay isang hand therapist: gagabayan niya ang iyong mga ehersisyo at gagawa ng anumang splint na kailangan mo habang gumagaling ang iyong daliri. Karamihan sa mga tao ay nakababalik sa kanilang karaniwang mga gawaing nangangailangan ng paghawak sa loob ng ilang linggo, bagaman ang kaunting pananakit sa peklat ay maaaring magtagal nang kaunti pa.
Kung hindi humuhupa ang iyong mga sintomas, lumalala sa loob ng ilang linggo, ginigising ka sa gabi, o pinipigilan kang magtrabaho o gamitin ang iyong kamay, magpatingin sa iyong GP o humingi ng review mula sa isang espesyalista.
Kailan dapat magpatingin¶
Karamihan sa mga bukol sa base ng daliri ay hindi mapanganib na ganglion, ngunit may ilang ibang kondisyon na maaaring magmukhang pareho sa lugar na iyon. Ang daliring nala-lock o tumutunog kapag ibinabaluktot, o ang isang matigas na cord sa palad na humihila sa daliri papunta sa palad, ay mga kondisyong natutukoy ng iyong surgeon sa pamamagitan ng pagsusuri sa iyong kamay. Makabubuting ipasuri ang anumang bagong bukol upang malaman mo kung alin ang mayroon ka.
Humingi ng review mula sa isang espesyalista kung masakit ang bukol kapag humahawak ka, kung nakakapansin ka ng pangingilig o pamamanhid sa daliri, o kung sumasabit o tumutunog ang daliri. Humingi rin kung hindi humuhupa ang iyong mga sintomas, lumalala sa loob ng ilang linggo, ginigising ka sa gabi, o pinipigilan kang magtrabaho o gamitin ang iyong kamay.
Kung ang iyong daliri, kamay o braso ay kailanman maging mainit, mapula, namamaga at masakit, lalo na kung may lagnat, pumunta sa isang emergency department sa mismong araw na iyon. Hindi mo kailangan ng referral mula sa iyong GP upang pumunta roon.
Higit pang detalye¶
Advanced reading: the deeper science (optional)
Ang seksyong ito ay higit pa sa kailangan mo para sa iyong sariling mga desisyon sa paggamot. Ang flexor tendon sheath ganglion ay karapat-dapat sa karagdagang pagbabasa dahil ito ang pinakamaliit na bukol sa hand surgery na maaasahang nagdudulot ng hindi proporsyonal na mga sintomas, at dahil ang kung saan ito nakakabit ang nagtatakda kung bakit ito masakit at kung bakit nabibigo ang mga simpleng paggamot.
Isang bukol na kasinglaki ng gisantes na masakit nang higit sa inaasahan¶
Ang mga cyst na ito, na tinatawag ding retinacular cysts, o volar retinacular ganglia, ay nagmumula sa fibrous sheath na humahawak sa mga flexor tendon laban sa mga buto ng daliri [1]. Matatagpuan ang mga ito sa base ng daliri sa palad, karaniwang may laki lamang na ilang milimetro, at matigas sa halip na malambot.
Ang sintomas ay katangian at naipaliliwanag kapag malinaw na ang anatomy: pananakit kapag humahawak ng isang bagay na matigas at makitid, manibela, golf club, handlebar ng bisikleta, hawakan ng shopping bag. Ang cyst ay naiipit sa pagitan ng bagay at ng buto sa ilalim nito, at walang soft tissue upang magsilbing cushion dahil ang sheath ay direktang nakakabit sa phalanx.
Ito ang dahilan kung bakit ang laki ay hindi gaanong tumutugma sa mga sintomas. Ang isang malaki at malambot na pamamaga sa likod ng pulso ay maaaring walang sakit habang ang isang lesion na maliit na bahagi lamang ng laki nito sa base ng daliri ay tunay na nakakalimita.
Ang parehong panuntunan gaya ng iba pang ganglion¶
Ang gawi nito ay nakadepende sa kung saan ito nakakabit. Ang cyst ay nagmumula sa tendon sheath at pinupunan nito, na nangangahulugang ang mekanika nito ay katulad ng sa wrist ganglion at mucous cyst: ang sac ay ang nakikitang dulo ng problema, hindi ang pinagmulan.
Dahil dito, ang pag-puncture o pag-aspirate nito ay tumutugon sa pamamaga at hindi sa leak. Karaniwan ang pagbalik nito pagkatapos ng simpleng drainage, at ang definitive treatment ay nangangahulugan ng pag-excise sa cyst kasama ang apektadong bahagi ng sheath kung saan ito nagmula.
Bakit ang operasyon ay mas maliit kaysa sa inaakala ngunit hindi trivial¶
Ang excision ay isang maikling procedure sa pamamagitan ng isang maliit na incision sa base ng daliri, at ito ay karaniwang curative. Dalawang anatomical facts ang nagpapahalaga sa pag-iingat sa bahaging iyon.
Ang mga digital nerve ay tumatakbo agad sa tabi ng flexor sheath, isa sa bawat panig, at sa base ng daliri sila ay superficial at malapit sa mga midline structures na tinatanggal. Ang isang numb patch sa kahabaan ng isang border ng daliri ay isang kinikilalang risk ng isang maliit na operasyon sa lokasyong ito.
Pangalawa, ang redundant portion lamang ng sheath ang maaaring tanggalin. Ang mga pulley na humahawak sa mga tendon laban sa buto ay mga load-bearing structures, at ang pagkawala ng isang critical na pulley ay nagpapahintulot sa tendon na mag-bowstring palayo sa daliri, na nagpapahina sa grip. Samakatuwid, ang excision ay sadyang limitado lamang sa segment ng sheath na hindi gumagawa ng tungkuling iyon.
Kailan ito hahayaang mag-isa¶
Dahil ang lesion na ito ay benign at hindi lumalaki nang walang hanggan, ang paggamot ay nakabatay lamang sa mga sintomas. Ang isang cyst na kapansin-pansin ngunit hindi masakit sa pang-araw-araw na paghawak (grip) ay hindi nangangailangan ng anumang gawin. Kung ito ay ginagamot, ito ay dahil may isang partikular at paulit-ulit na aktibidad na naaapektuhan, na isang mas malinaw na indikasyon kaysa sa karamihan, dahil ang nag-uudyok na paghawak ay karaniwang madaling matukoy ng isang tao.
Ang mga kaugnay na cyst ng fingertip joint at ng wrist ay tinalakay sa kani-kanilang mga pahina; ang shared principle sa tatlong ito ay ang stalk, at hindi ang sac, ang nagtatakda kung babalik ang problema.
Mga Sanggunian¶
[1] Foret AL, Chhabra AB. Volar retinacular ganglions. J Hand Surg Am. 2012;37(3):566-7. https://doi.org/10.1016/j.jhsa.2011.05.013
Evidence & references
This is the clinical evidence summary written for health professionals. It is technical, and it lists the research this page was built from. You do not need to read it to understand your treatment or to make a decision about it.
Overview¶
Epidemiology and Natural History¶
- Pediatric ganglions are more commonly found on the volar surface of the hand and wrist compared to adults [7].
- Pediatric ganglions more commonly have a tendon sheath origin compared to adults [7].
- Approximately 40% of wrist ganglion lesions decrease over the first 6 years after evaluation by a hand surgeon [25].
Diagnosis¶
- Ultrasound is useful for assisting in the diagnosis of suspected flexor tendon sheath ganglions [1].
- Ultrasound is useful for determining whether patients with suspected flexor tendon sheath ganglions should undergo aspiration or surgical excision [1].
- Routine wrist radiography is not cost-effective in the evaluation and treatment decision-making process for patients with a wrist ganglion due to a low prevalence of therapeutically significant findings [21].
Non-Operative Management¶
- A nonsurgical approach to flexor tendon sheath ganglions is both cost-effective and successful [3].
- Most ganglions recur after aspiration [25].
- Percutaneous puncture is a practical option for managing flexor tendon sheath ganglions given its low cost, lack of downtime, and low recurrence rate [5].
- No recurrences were observed after a second puncture in the cohort assessed for percutaneous puncture of flexor sheath ganglions [5].
Operative Management¶
- Surgical excision is a simple, safe, and effective method for treating a painful ganglion of the digital flexor tendon sheath [2].
- Surgical intervention for wrist ganglions has about a 10% recurrence rate [25].
- Surgical intervention for wrist ganglions leaves scars and has some risk for adverse events [25].
- Ultrasound-guided excision of flexor tendon sheath ganglion using a 2-mm portal under local anaesthesia was reliable and efficient without specific morbidity [4].
- Endoscopic ganglionectomy via flexor carpi radialis tendoscopy is a minimally invasive approach that offers better cosmesis and less soft tissue trauma [9].
- Endoscopic ganglionectomy via flexor carpi radialis tendoscopy allows for the management of concomitant FCR tendon pathology [9].
- Endoscopic ganglionectomy via flexor carpi radialis tendoscopy carries risks of recurrence and nerve or vessel injury [9].
- Operation-related complications after arthroscopic volar wrist ganglionectomy are associated with the anatomical location of the ganglion being distal to the bifurcation of the radial artery and concurrently penetrated up to the superficial fascia layer [60].
Pediatric Management¶
- There is no consensus within the literature regarding the best management of pediatric wrist ganglia [22].
- No single treatment modality confers a particular advantage or disadvantage over another for pediatric wrist ganglia [22].
Anatomy & Pathophysiology¶
Flexor Tendon Sheath Anatomy¶
- The fibroosseous tunnel, or digital flexor sheath, extends distally from the metacarpal neck to the proximal aspect of the distal phalanx [75].
- The tendinous sheath consists of annular pulleys that provide mechanical stability and cruciate pulleys that provide flexibility [75].
- The A2 and A4 pulleys are situated over the middle portion of the proximal and middle phalanges, respectively [75].
- The A2 and A4 pulleys are the most essential in maintaining the mechanical advantage of the flexor tendons [75].
- The tenosynovium lining the fibroosseous tunnel supplies both nutrition and lubrication to the poorly vascularized flexor tendons [75].
- Within the sheath, tendon vascularity is supplied via the vincula system, specifically the vinculum longus and brevis [75].
- Anatomical studies have identified two annular and one oblique pulley in the thumb [91].
- A branch from the digital nerve enters the flexor tendon sheath at the same place as the transverse branch of the digital artery [8].
- The nerve branch entering the flexor tendon sheath supplies the nerve fibres found within the vinculum [8].
- The transverse branch of the digital artery enters the edge of the sheath to reach the area of the vinculum brevis [8].
Gliding Mechanisms and Biomechanics¶
- In narrow crowded areas, the gliding mechanism is assured by the synovial sheath, which allows a considerable amplitude of movement [76].
- Fibrous sheaths surrounding synovial sheaths keep the tendon close to the skeleton, particularly when the tendon crosses an articular angle [76].
- The fibrous sheath assumes the role of a pulley when the tendon changes direction [76].
- Each synovial sheath has a visceral and parietal component separated by a potential synovial cavity containing a very thin layer of synovial fluid [76].
- This synovial fluid constitutes the basic gliding and nutritional mechanism for the tendon [76].
- Diffusion is a significant nutrient pathway to the flexor tendon, supporting the importance of sheath closure at the time of tendon suture [36, 37].
- At half the total tendon excursion, the force required to flex the digit through half its range is always less than a third of the force required to flex the digit fully [46].
- The force required to fully flex the digit decreased with more extensive A1 pulley release, becoming significant when more than 50% of the pulley was released [97].
Pathophysiology of Triggering and Ganglions¶
- Triggering results from the loss of smooth gliding of a tendon within its tendon sheath [6].
- Inflammation of the synovium lining the tendon sheath interferes with the normal gliding mechanism [6].
- Interference with the gliding mechanism is especially troublesome at a point of change in direction of a tendon [6].
- Ganglions are defined as cystic swellings closely connected to joints or tendon sheaths which contain mucinous material [141].
- The etiology of ganglions is unknown [141].
- The articular (synovial) theory has gained worldwide acceptance as a scientifically proven explanation for the formation of intraneural ganglions [17].
- Triggering of the finger can occur secondary to a partial flexor tendon tear after closed direct injury [98].
Classification¶
- Volar wrist ganglions may arise from a variety of locations, unlike dorsal wrist ganglions which typically arise from a specific location at the dorsal margin of the scapholunate interosseous membrane [16].
- Approximately two thirds of anterior wrist ganglions reportedly arise from the radiocarpal joint [16].
- One third of anterior wrist ganglions reportedly arise from the scaphotrapezial joint [16].
- Ganglion cysts that arise from the flexor carpi radialis (FCR) sheath are often in a slightly more medial location, either just radial or palmar to the sheath [16].
- Ganglions arising from the FCR sheath are typically less mobile than ganglions arising from the wrist joint [16].
- Ganglions arising from the first extensor compartment tend to adhere to the sheath (extensor retinaculum) [16].
- Ganglions arising from the first extensor compartment tend to be quite firm and are less mobile [16].
- In children aged <10 years, ganglion cysts present on the volar aspect of the wrist [13].
- In patients aged >10 years, ganglions resemble those in the adult population and present on the dorsal aspect of the wrist [13].
Clinical Presentation¶
General Characteristics¶
- Ganglions are the most common cause of focal masses in the hand and foot [50].
- Ganglions commonly arise from the synovium of joints, tendon sheaths, or the epineurium of nerves [50].
- Ganglions are filled with synovial fluid that may become jelly-like over time [50].
- Most patients with intraneural ganglions present with a painless mass [17].
- Some patients with intraneural ganglions present with symptoms of nerve irritation or entrapment neuropathy [17].
- In many patients with intraneural ganglions, definitive diagnosis is made only at the time of surgery [17].
Volar Wrist and Hand¶
- Volar wrist ganglia tend to arise in the interval between the first extensor compartment and flexor carpi radialis (FCR) tendon sheath, just proximal to the wrist flexion crease [16].
- Volar wrist ganglia typically appear to be 1 to 2 cm in size but may be significantly larger at the time of surgical dissection [16].
- Patients with volar wrist ganglions often present with complaints of a mass that has been present for a number of months or years and is typically asymptomatic [16].
- Patients with volar wrist ganglions often note discomfort when the mass is "bumped" [16].
- Volar wrist ganglia are clinically compressible, slightly mobile, nontender, and visible when transilluminated [16].
- Volar wrist ganglia are nonpulsatile but are often intimate with the radial artery, which is palpable alongside the lesion [16].
- Approximately one third of anterior wrist ganglions reportedly arise from the scaphotrapezial joint [16].
- Ganglion cysts that arise from the FCR sheath are often in a slightly more medial location, either just radial or palmar to the sheath [16].
- Ganglion cysts arising from the FCR sheath are typically less mobile than ganglions arising from the wrist joint [16].
Pediatric Population¶
- In children aged <10 years, ganglion cysts are generally amenable to observation with spontaneous regression [13].
- Ganglions in pediatric populations most commonly affect the dorsal wrist [47].
- Ganglions in pediatric populations demonstrate a female predilection [47].
- Pediatric ganglions of the hand have a greater rate of resolution than ganglions of the wrist [52].
Diagnostic Imaging¶
- Ultrasound is useful for assisting in diagnosis and determining whether patients should undergo aspiration or surgical excision for suspected flexor tendon sheath ganglions [1].
- MRI scans provide relatively good reliability in establishing the diagnosis of an occult dorsal wrist ganglion, with a sensitivity of 83% when using intra-operative findings as the standard [48].
- MRI is an excellent diagnostic modality to evaluate rapidly growing upper extremity masses and distinguish ganglions from malignant processes [33].
- The use of the 3-dimensional FSE extended echo train MRI sequence, called cube, has revolutionized the visualization of intraneural ganglions and articular branches that connect them to the joint [17].
Investigations¶
Imaging Modalities¶
- The architecture and relationship of the FDS to FDP within the flexor sheath is accurately defined using a non-invasive imaging technique and the pulley system can be clearly imaged in cross-section [58].
- Sonography-guided wrist arthroscopy provides visualization of the ganglions and ganglion stalk, as well as of the arthroscopic shaver and adjacent structures such as nerves, vessels, and tendons to perform surgery safely [124].
- Sonography-assisted arthroscopy allows clear visualization of ganglia, vessels, nerves, and tendons, enabling safe guidance of the arthroscopic shaver to the lesion without blind resection [126].
Diagnostic Limitations and Utility¶
- The study concludes that routinely performing wrist radiography is not cost-effective in the evaluation and treatment decision-making process for patients with a wrist ganglion due to a low prevalence of therapeutically significant findings [21].
- Radiologists are less likely to identify occult dorsal ganglion cysts on MRI if the cyst is smaller or if the requisition form does not mention a cyst [138].
Pathology and Histology¶
- In patients with the clinical diagnosis of wrist ganglion cyst, quality of care would not be compromised by abandoning the practice of routinely submitting surgical specimens for pathological examination after excision of the ganglion cyst [27, 31].
Treatment¶
Non-Operative Management¶
- Ultrasound imaging assists in determining whether patients with suspected flexor tendon sheath ganglions should undergo aspiration or surgical excision [1].
- Percutaneous puncture is a practical option for managing flexor tendon sheath ganglions due to its low cost, lack of downtime, and low recurrence rate [5].
- No recurrences were observed after a second percutaneous puncture in the cohort assessed for recurrence [5].
- Ganglion aspiration should be considered as a first-line intervention [55].
- Nonsurgical treatment is largely ineffective in treating ganglion cysts, though it may be considered for symptomatic relief in patients who do not want surgery [125].
- Aspiration, with or without cortisone injection, has an average success rate of 35% to 50% [122].
- Approximately 40% of lesions decrease over the first 6 years after evaluation by a hand surgeon [25].
Operative Management¶
- Ultrasound-guided excision of flexor tendon sheath ganglions using a 2-mm portal under local anaesthesia was reliable and efficient without specific morbidity [4].
- Open surgical excision offers a significantly lower chance of recurrence compared with aspiration in the treatment of wrist ganglions [135].
- Surgical intervention for ganglions has about a 10% recurrence rate [25].
- Surgical intervention for ganglions leaves scars and carries some risk for adverse events [25].
- In patients with a clinical diagnosis of wrist ganglion cyst, quality of care would not be compromised by abandoning the practice of routinely submitting surgical specimens for pathological examination after excision [27, 31].
- Arthroscopic resection is an effective treatment strategy for intra-articular synovial ganglions refractory to conservative measures, providing complete resolution of symptoms and functional recovery with minimal soft tissue damage [119].
- Arthroscopic ganglionectomy through an intrafocal cystic portal is a safe and efficacious option for the treatment of painful wrist ganglia [120].
- Arthroscopic ganglionectomy is a safe and reliable alternative to open resection [140].
- At 12 months follow-up, the rates of recurrence with arthroscopic dorsal ganglion excision are comparable with and not superior to those of open excision [24].
- Routine midcarpal joint exploration during arthroscopic excision of dorsal wrist ganglions appeared to reduce recurrence at 1 year without negatively impacting patient outcomes [35].
- Recurrent ganglion cysts originating from the midcarpal joint are not contraindications for arthroscopic resection [38].
- Arthroscopy allows for the simultaneous treatment of ganglions and other pathologies [29].
- Endoscopic ganglionectomy via flexor carpi radialis tendoscopy is a minimally invasive approach that offers better cosmesis, less soft tissue trauma, and the ability to manage concomitant FCR tendon pathology [9].
- There was no impairment of wrist motion and function in all patients following arthroscopic resection of palmar ganglions [51].
- The key to successful open treatment of dorsal wrist ganglions is excision of the ganglion stalk based at the scapholunate ligament and its associated dorsal-capsular attachments [122].
- Open ganglionectomy creates a defect in the capsule of 1 to 1.5 cm, which is left open [122].
- Stiffness has been reported from prolonged immobilization following open ganglionectomy [122].
- The rate of recurrence for open ganglionectomy can be as high as 40% [122].
- Indications for surgery include pain, restricted motion, and/or aesthetic complaints as a result of the ganglion cyst [113].
- Ultrasound, magnetic resonance imaging, or X-rays are performed to confirm the presence of a ganglion cyst or to rule out other conditions when surgery is indicated [113].
- The operation for dorsal wrist ganglion excision is generally performed under regional anaesthesia and a tourniquet [113].
- A dorsal incision distal to Lister’s tubercle is used, with the extensor retinaculum between the tendons of the second and fourth extensor compartments incised [113].
- A small arthrotomy is performed over the scapholunate ligament, where the dorsal wrist ganglion usually originates [113].
- Complete excision of the ganglion along with its capsule is performed with local synovectomy [113].
- The capsule is either fenestrated or sutured, depending on the surgeon [113].
- A compressive dressing is applied after skin closure and left in place for 3 days [113].
- Active mobilization of the wrist starts after the hand therapist changes the dressing [113].
- Sutures are removed 10 to 14 days postoperatively [113].
- Splints are not used on a regular basis [113].
- Patients start with a stabilizing and strength programme under the guidance of the hand therapist after 3 weeks [113].
- In pediatric wrist ganglion excision, a transverse incision is made over the ganglion to expose the cyst's wall [123].
- Fluid is aspirated and 0.3e0.5 mL of methylene blue is injected into the cavity to facilitate dye penetration into the cyst wall [123].
- The base of the ganglion is ligated with a 4e0 absorbable suture [123].
- All blue-stained ganglion tissue is thoroughly resected [123].
- The wrist is immobilized with a plaster cast for 7 to 10 days following pediatric excision [123].
- Followup examinations occur monthly for 6 months and every 3 months thereafter [123].
- Recurrence is assessed within 48 months' follow-up by palpation alone [123].
- Patients undergoing initial pediatric excision had been treated conservatively for more than 1 year [123].
- Recurrence of the wrist ganglion cyst occurred in 9% of patients in a cohort of 53 arthroscopic resections [116].
- PRWE scores were significantly higher in patients with a recurrence (30 vs. 12, p = 0.002) [116].
- Patients initially presenting with a new ganglion cyst had fewer recurrences at final follow-up compared with patients initially presenting with recurrence (4 vs. 15%) [116].
- Asymptomatic ganglion cysts were left untreated in the arthroscopic cohort [116].
- One patient experienced neuropraxia of the radial superficial nerve, which resolved spontaneously [116].
- One patient developed extensor carpi ulnaris (ECU) tendinitis, which was successfully treated with splinting [116].
- One patient experienced painful scar tissue, which was successfully removed surgically [116].
Complications¶
- Surgical intervention for wrist ganglions carries a recurrence rate of approximately 10% [25].
- Surgical intervention for wrist ganglions leaves scars and carries some risk for adverse events [25].
- Operation-related complications after arthroscopic volar wrist ganglionectomy are associated with the anatomical location of the cyst, specifically when it is distal to the bifurcation of the radial artery and concurrently penetrated up to the superficial fascia layer [60].
- Open surgical excision of pediatric wrist ganglions demonstrates minimal complications [13].
Recovery¶
Non-Operative Management¶
- No recurrences were observed after a second puncture in the cohort assessed for percutaneous puncture management [5].
- About 40% of lesions decrease over the first 6 years after evaluation by a hand surgeon [25].
- In a child with a wrist ganglion, if the cyst ultimately resolved, it usually did so within 18 months [20].
Operative Management¶
- Surgical intervention has about a 10% recurrence rate [25].
- Surgical intervention leaves scars and has some risk for adverse events [25].
Key Evidence¶
- [L4] Ultrasound is useful for assisting in diagnosis and determining whether patients should undergo aspiration or surgical excision for suspected flexor tendon sheath ganglions. [1] (10.1016/s0363-5023(97)80043-3)
- [L4] Surgical excision is a simple, safe, and effective method for treating a painful ganglion of the digital flexor tendon sheath. [2] (10.1007/s11552-007-9028-4)
- [L4] A nonsurgical approach to flexor tendon sheath ganglions is both cost-effective and successful. [3] (10.1053/jhsu.2002.34318)
- [L4] The ultrasound-guided excision of flexor tendon sheath ganglion, using a 2-mm portal, under local anaesthesia was reliable and efficient, without specific morbidity. [4] (10.1016/j.hansur.2018.10.116)
- [L4] Percutaneous puncture is a practical option for managing flexor tendon sheath ganglions given its low cost, lack of downtime, and low recurrence rate, with no recurrences observed after a second puncture in this cohort. [5] (10.1177/17531934221115983)
- [L5] [6] (10.1016/0266-7681(94)90139-2)
- [L4] Pediatric ganglions are more commonly found on the volar surface of the hand and wrist and more commonly have tendon sheath origin compared to adults. [7] (10.1007/s11552-008-9122-2)
- [L5] [8] (10.1016/0266-7681(91)90138-e)
- [Paper] Endoscopic ganglionectomy via flexor carpi radialis tendoscopy is a minimally invasive approach that offers better cosmesis, less soft tissue trauma, and the ability to manage concomitant FCR tendon pathology, though it carries risks of recurrence and nerve or vessel injury. [9] (10.1016/j.eats.2017.06.002)
- [L4] [13] (10.1016/j.jhsa.2021.12.015)
- [L5] [16] (10.1016/j.hcl.2004.03.015)
- [L4] [17] (10.1016/j.jhsa.2015.05.025)
- [L4] In a child with a wrist ganglion, if the cyst ultimately resolved, it usually did so within 18 months. [20] (10.1016/j.jhsa.2019.10.032)
- [L4] The study concludes that routinely performing wrist radiography is not cost-effective in the evaluation and treatment decision-making process for patients with a wrist ganglion due to a low prevalence of therapeutically significant findings. [21] (10.1007/s11552-007-9032-8)
- [L4] There is no consensus within the literature regarding the best management of pediatric wrist ganglia, and no single treatment modality confers a particular advantage or disadvantage over another. [22] (10.1177/1558944720966716)
- [L1] At 12 months follow-up, the rates of recurrence with arthroscopic dorsal ganglion excision are comparable with and not superior to those of open excision. [24] (10.1016/j.jhsa.2008.01.009)
- [L5] Current best evidence suggests that about 40% of lesions decrease over the first 6 years after evaluation by a hand surgeon, that most ganglions recur after aspiration, and that surgical intervention has about a 10% recurrence rate, leaves scars, and has some risk for adverse events. [25] (10.1016/j.jhsa.2010.11.048)
- [L3] This study suggests that, in patients with the clinical diagnosis of wrist ganglion cyst, quality of care would not be compromised by abandoning the practice of routinely submitting surgical specimens for pathological examination after excision of the ganglion cyst. [27] (10.1016/j.jhsa.2010.03.021)
- [L4] Arthroscopy allows for the simultaneous treatment of ganglions and other pathologies. [29] (10.1016/j.jhsa.2012.04.042)
- [L4] In patients with the clinical diagnosis of wrist ganglion cyst, the quality of care would not be compromised by abandoning the practice of routine submission of surgical specimens for pathological examination after excision of the ganglion cyst. [31] (10.1016/s0363-5023(10)60107-4)
- [L4] MRI is an excellent diagnostic modality to evaluate rapidly growing upper extremity masses and distinguish ganglions from malignant processes. [33] (10.1007/s11552-007-9083-x)
- [L3] Routine midcarpal joint exploration during arthroscopic excision of dorsal wrist ganglions appeared to reduce recurrence at 1 year without negatively impacting patient outcomes. [35] (10.1177/17531934251405730)
- [L5] The importance of sheath closure at the time of tendon suture is based in part on the evidence that diffusion is a significant nutrient pathway to the flexor tendon. [36] (10.1016/0266-7681(88)90077-0)
- [L5] The importance of sheath closure at the time of tendon suture is based in part on the evidence that diffusion is a significant nutrient pathway to the flexor tendon. [37] (10.1016/0266-7681_88_90077-0)
- [L4] Ganglion cysts also have a high association with certain interosseous laxities, and recurrent ganglion cysts originating from the midcarpal joint are not contraindications for arthroscopic resection. [38] (10.1016/j.jhsa.2008.11.025)
- [L5] At half the total tendon excursion, the force required to flex the digit through half its range is always less than a third of the force required to flex the digit fully. [46] (10.1016/0266-7681(90)90086-j)
- [L2] Ganglions in pediatric populations, which most commonly affect the dorsal wrist, demonstrate a female predilection. [47] (10.1016/j.jhsa.2021.02.026)
- [L3] MRI scans provide relatively good reliability in establishing the diagnosis of an occult dorsal wrist ganglion, with a sensitivity of 83% when using intra-operative findings as the standard. [48] (10.1177/1753193408092041)
- [Case_report] [50] (10.1007/s12593-014-0117-7)
- [L4] There was no impairment of wrist motion and function in all patients. [51] (10.1016/j.main.2006.07.028)
- [L4] Pediatric ganglions of the hand have a greater rate of resolution than ganglions of the wrist. [52] (10.1016/j.jhsa.2023.07.002)
- [L4] Ganglion aspiration should be considered as a first-line intervention, with surgical excision remaining an effective option for symptomatic cases. [55] (10.1177/1753193411434376)
- [L5] The architecture and relationship of the FDS to FDP within the flexor sheath is accurately defined using a non-invasive imaging technique and the pulley system can be clearly imaged in cross-section. [58] (10.1016/j.jhsb.2005.08.001)
- [L3] The operation-related complications after arthroscopic volar wrist ganglionectomy are associated with its anatomical location: distal to the bifurcation of the radial artery and concurrently penetrated up to the superficial fascia layer. [60] (10.1186/s12891-025-08766-x)
- [L5] Anatomical studies have identified two annular and one oblique pulley in the thumb. [91] (10.1016/s0363-5023(77)80101-9)
- [L5] The force required to fully flex the digit decreased with more extensive A1 pulley release, becoming significant when more than 50% of the pulley was released. [97] (10.1016/s0266-7681(98)80217-9)
- [L5] This illustrates another post-traumatic mechanical cause for triggering of the finger. [98] (10.1016/0363-5023(93)90059-c)
- [L2] [113] (10.1177/17531934231153029)
- [L4] [116] (10.1055/s-0040-1716509)
- [L4] Arthroscopic resection is an effective treatment strategy for intra-articular synovial ganglions refractory to conservative measures, providing complete resolution of symptoms and functional recovery with minimal soft tissue damage. [119] (10.1016/j.jhsg.2024.05.007)
- [L4] Arthroscopic ganglionectomy through an intrafocal cystic portal is a safe and efficacious option for the treatment of painful wrist ganglia. [120] (10.1016/j.arthro.2009.08.021)
- [L4] [122] (10.1016/s0749-0712(21)00020-2)
- [L2] [123] (10.1016/j.jhsa.2015.01.015)
- [L4] Sonography-guided wrist arthroscopy provides several advantages for surgeons, including visualization of the ganglions and ganglion stalk, as well as of the arthroscopic shaver and adjacent structures such as nerves, vessels, and tendons to perform surgery safely. [124] (10.1016/j.jhsa.2012.04.012)
- [L4] Nonsurgical treatment is largely ineffective in treating ganglion cysts, though it may be considered for symptomatic relief in patients who do not want surgery. [125] (10.1155/2013/940615)
- [Paper] Sonography-assisted arthroscopy allows clear visualization of ganglia, vessels, nerves, and tendons, enabling safe guidance of the arthroscopic shaver to the lesion without blind resection. [126] (10.1016/j.eats.2011.12.007)
- [L1] Open surgical excision offers significantly lower chance of recurrence compared with aspiration in the treatment of wrist ganglions. [135] (10.1016/j.jhsa.2014.12.014)
- [L3] Radiologists are less likely to identify occult dorsal ganglion cysts on MRI if the cyst is smaller or if the requisition form does not mention a cyst. [138] (10.1055/s-0039-1683847)
- [L4] Arthroscopic ganglionectomy is a safe and reliable alternative to open resection. [140] (10.1016/j.jhsa.2003.10.018)
- [L4] [141] (10.2106/00004623-197254070-00009)
References¶
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