Skip to content

Patients › Rehabilitation

屈肌腱修复

在手指屈肌腱修复术后,采用早期主动活动康复计划,使用曼彻斯特短夹板从第一周开始轻柔且安全地活动正在愈合的肌腱,同时保护修复部位六周。

示意图显示屈肌腱沿手指掌侧在其腱鞘内走行。
屈肌腱负责弯曲手指,它们沿着手掌侧的紧密鞘管走行;断裂的肌腱经修复后,在愈合过程中需仔细保护。 Kieran Hirpara 4.0

本页面由机器翻译,尚未经临床医生审核。英文版本为权威版本。

本方案旨在指导您在基兰·希尔帕拉(Kieran Hirpara)医生于洛克汉普顿 Mater 私立医院完成手指屈肌腱手术修复后的康复过程。屈肌腱是位于手指掌侧、使手指向掌心弯曲的肌腱。方案首先介绍您的家庭锻炼计划,随后是专为您的手部治疗师制定的结构化临床方案:请在首次治疗时携带此页面或其 PDF 文件,以确保康复过程协调一致。您的手部治疗师可能会根据您的康复进展调整该计划。

如果您对术后伤口有任何疑虑,请与诊所联系。拍摄伤口照片并通过电子邮件发送以供审查通常很有帮助。

预期情况

屈肌腱修复术将断裂的肌腱断端缝合在一起,使手指能够再次弯曲。修复后的肌腱强度足以立即进行轻柔的活动,但在最初的几周内,随着肌腱愈合,其强度处于最低点。因此,整个康复计划围绕“适度活动”展开,旨在保持肌腱滑动,同时避免施加足以导致缝线断裂的负荷。

为此,您的手部将佩戴一种名为曼彻斯特短夹板的特殊轻型夹板进行休息。与旧式笨重的夹板不同,该夹板较短,止于腕横纹处,从而保留手腕的活动空间。它允许您的手腕向前和向后完全活动至约45度,同时一个小阻挡块限制您的掌指关节伸直超过约30度,并允许您的指间关节自由活动。您需要全天候佩戴六周,仅在按指示进行锻炼和清洗时取下。

其精妙之处在于手腕的使用方式。当您向前弯曲手腕时,手指会几乎自动伸直(这称为肌腱固定效应),使您无需肌肉强力驱动即可完全张开手指。当您向后弯曲手腕时,轻柔地卷曲手指会变得更加容易和安全。以这种方式活动可保持肌腱滑动,关键在于防止手指蜷缩成僵硬弯曲的状态,这是此类修复术后最常见的问题。

早期锻炼(从第4–5天开始)轻柔且具体:首先被动弯曲手指,然后从指尖开始进行轻度的主动“钩状”屈曲,最后在手腕弯曲的情况下伸直手指。六周内禁止用力抓握和强制活动。六周后取下夹板,开始轻度力量训练,大多数人在十至十二周后恢复手部的完全 unrestricted(无限制)使用。

注意事项与限制

  • 连续六周全天佩戴曼彻斯特短夹板:仅在进行锻炼和清洗时取下,请遵医嘱。
  • 切勿握紧硬拳,切勿用患手抓握、提举、拉扯或搬运任何物品,持续时间为术后六周:过度负重可能导致修复处断裂。
  • 切勿强行伸直手指或强行弯曲手指;所有动作应轻柔,且仅限于您已掌握的活动范围内。
  • 您可以使用患手进行极轻度的安全任务,但不包括受伤的手指,前提是没有任何动作会牵拉或使其受力。
  • 若出现“啪”的一声或突然的“松弛感”并伴有手指屈曲功能丧失,可能提示肌腱断裂:一旦发生,请立即联系诊室。
  • 佩戴夹板期间切勿驾驶车辆;拆除夹板后(约六周),待握力和控制能力恢复良好并经医生许可后方可恢复驾驶。

关于伤口、肿胀和瘢痕管理,请参阅诊所的伤口护理指南。

您的练习

这些是您讲义中的练习。仅在 Hirpara 医生和您的手部治疗师的指导下开始练习,并严格遵循您被允许的关节活动度和限制。每次练习均遵循相同的安全顺序:首先被动轻柔弯曲手指,然后进行主动的“钩状”屈曲和肌腱滑动练习,接着在屈腕状态下伸直手指,以防止手指僵硬成屈曲状态。所有动作均应轻柔:此为滑动练习,而非力量训练。放置保持(place-and-hold)和阻挡(blocking)练习属于后续阶段,仅在手部治疗师指导您开始后方可进行。若任何动作引起修复部位锐痛,请立即停止;在获得许可前,切勿用力握紧拳头。

您的临床方案

本页面其余部分为使用曼彻斯特短夹板及早期主动活动(EAM)方案进行屈肌腱修复后的分阶段康复临床方案。本节内容将提供给您的手部治疗师,每个阶段均以通俗易懂的语言解释当前正在进行的处理。修复处在最脆弱的早期阶段,此时会承受主动及抗阻性手指屈曲(即用力握拳)带来的负荷;因此,该方案旨在防止强力屈曲,同时刻意促进肌腱滑动及主动指间关节(IP)伸展,以预防作为主要恼人并发症的屈曲挛缩。

治疗前,请核对患者的手术记录及既往病史,并与主治外科医生沟通损伤分区、核心缝线配置及修复强度、任何滑室(pulley)开窗情况,以及是否合并指神经修复。Hirpara 博士的屈肌腱修复采用曼彻斯特短背侧夹板(止于腕横纹),允许腕关节完全屈伸至 45°掌指关节(MCP)限制在屈曲 30°,指间关节自由活动,全天佩戴六周。仅当出现指间关节屈曲畸形时,才加用夜间伸展支具。

第一阶段——曼彻斯特短夹板下的早期主动活动(第0至6周)

前六周旨在保护肌腱的愈合修复,同时保持肌腱滑动并防止手指因屈曲挛缩而僵硬。手部全天佩戴曼彻斯特短夹板(腕关节完全屈曲,背伸至45°,掌指关节(MCP)限制在30°,指间关节(IP)自由活动)。主动活动始于术后第4–5天。每次训练按固定顺序进行:首先进行被动指间关节屈曲,然后进行主动钩拳(从远端指间关节(DIP)开始,腕关节背伸),最后进行主动指间关节伸展(协同作用,抗挛缩),此时腕关节屈曲。禁止强行达到终末端活动范围,禁止进行抗阻屈曲。

致您的手治疗师:

教育与注意事项 - 全天佩戴曼彻斯特短夹板:腕关节完全屈曲,背伸至45°掌指关节(MCP)限制在30°,指间关节(IP)自由活动;仅在锻炼和清洁时取下 - 术后第4–5天开始早期主动活动(EAM) - 禁止强行屈曲至终末端,禁止抗阻屈曲;禁止抓握、提举或牵拉 - 手部进行轻微的“安全”使用,但需避开受伤的手指 - 仅当出现指间关节屈曲畸形趋势时,夜间仅佩戴背伸支具

管理措施 - 伤口:按医嘱进行外科敷料处理;监测感染迹象 - 水肿:抬高患肢,轻柔控制指部水肿,管理粘连风险 - 每次训练的练习顺序:(1) 首先进行完全被动指间关节屈曲;(2) 主动钩拳,从远端指间关节(DIP)开始,腕关节背伸至45°;(3) 腕关节屈曲状态下的主动手指伸展(协同作用/肌腱固定作用,抗挛缩);根据指导增加放置并维持至轻度握拳的动作 - 此阶段每周进行一次手治疗复查

进阶标准 - 伤口愈合;术后六周时修复完整;肌腱滑动功能保持良好;无明显的指间关节屈曲挛缩

第二阶段——拆除夹板,进行软组织与瘢痕处理(第6周)

第6周时拆除夹板。重点转向恢复完全的被动与主动活动范围,松解任何早期紧张,并处理瘢痕。此时尚未开始强化训练;仅当存在残留的屈曲畸形时,才使用夜间伸展夹板。

供您的手部治疗师参考:

评估 - 掌指关节(MCP)/近端指间关节(PIP)/远端指间关节(DIP)的主动与被动活动范围(ROM);是否存在指间关节(IP)屈曲挛缩;肌腱滑动质量(评估是否存在粘连);瘢痕与伤口复查

教育与注意事项 - 第6周停用夹板(仅对残留的指间关节屈曲畸形使用夜间伸展夹板) - 逐步增加轻度功能性使用;仍禁止抗阻握持或负重

管理 - 进行软组织拉伸以恢复完全的组合屈曲与伸展;伤口愈合后开始瘢痕管理 - 继续肌腱滑动练习;若粘连限制了肌腱的独立滑动,则引入阻挡练习 - 逐步增加手部轻度功能性使用

进阶标准 - 伤口与瘢痕稳定;接近完全的被动活动范围;滑动功能维持良好;准备好进行分级强化训练

第三阶段——强化与恢复(第6至12周)

随着修复组织更加成熟,开始进行分级拉伸和渐进性强化训练,并稳步增加负荷,直至实现无限制使用。预计在第10至12周时,根据标准达标后,可恢复完全、无限制的活动。

致手部治疗师:

评估 - 复合关节活动度(ROM)及任何残留的关节挛缩;握力与捏力与健侧对比;修复组织对分级负荷的反应

教育与注意事项 - 从约第6周开始进行分级拉伸和渐进性强化训练;逐渐增加负荷 - 在力量重建完成之前,避免突然的最大握力或抗阻负荷

管理 - 进行渐进性握力与捏力强化训练(从治疗泥过渡到分级阻力);继续针对任何残留僵硬进行拉伸;根据需要继续进行瘢痕处理 - 逐步推进至第10–12周时的完全/无限制活动 - 一旦关节活动度和力量达到功能水平,且活动恢复适宜,可考虑出院;若恢复出现平台期或屈曲挛缩持续存在,请转诊回主治外科医生

完全活动恢复标准 - 功能性复合关节活动度;充足且接近对称的握力与捏力;无疼痛的无限制使用,通常在10–12周时达成

重返工作与活动

在佩戴夹板期间,鼓励尽早开始手部轻量、安全的使用(不包括受伤的手指),前提是没有任何动作会牵拉、抓握或牵拉修复部位。在最初几周需安排他人协助,因为术后六周内患手不得进行抓握、提举或搬运。夹板约在六周后拆除,此后开始进行轻量强化训练。

由于佩戴背侧夹板期间严禁驾驶,请为前六周安排交通接送。驾驶可在夹板拆除后(约六周)恢复,前提是您的抓握力和手指控制能力已达标,并经复查时获得医生许可。通常在十至十二周时可逐步恢复全部无限制活动,包括用力抓握及较重任务,具体进展由Hirpara医生及您的手部治疗师根据手指活动度及肌力综合评估,而非仅依据时间。

协议之后

本协议与诊所的一般康复建议并行;另请参阅术后疼痛管理伤口护理疤痕管理。上述分阶段计划反映了屈肌腱修复术后早期主动运动康复的已发表指导原则,您的持续康复将由Hirpara医生和您的手部治疗师根据您的手指进展情况个体化指导。


Evidence & references

Flexor Tendon Repair — Procedure Outcomes & Post-operative Rehabilitation (Manchester Short-Splint Early Active Motion)

Topic scope: post-operative rehabilitation after primary surgical repair of a flexor tendon in the finger (especially zone II) with a robust multi-strand core repair, mobilised on an early-active-motion (EAM) regimen using the Manchester short splint. This is a repair of a divided structure that is at its weakest in the first weeks, so — unlike a decompression — the rehab is a carefully graded protected-but-moving pathway: enough controlled tendon excursion to prevent adhesion and flexion contracture, without the forceful flexion that ruptures the construct.

Defining principle of the rehab here: a repaired flexor tendon must glide to heal well but must not be loaded hard while it is weak. The two competing failures are rupture (from forceful or resisted flexion) and adhesion / PIP flexion contracture (from too little controlled motion). The Manchester short splint resolves this tension by leaving the wrist free: holding the wrist in 45° of extension minimises the work of flexion (Savage) so a gentle active hook fist glides the tendon at low tension, while permitting wrist flexion harnesses the extensor tenodesis effect to drive active IP extension — the single most effective lever against the PIP flexion contracture that is the characteristic nuisance complication of zone II repair. The deliberate sequence each session (passive IP flexion → active hook fist from the DIP, wrist extended → active IP extension, wrist flexed) is what makes the regimen safe and anti-contracture.


A. PROCEDURE / REPAIR OUTCOMES (early active motion vs passive mobilisation)

Flexor tendon repair is technically demanding and historically complication-prone (rupture and adhesion). Modern multi-strand core repairs combined with early active motion have shifted outcomes decisively toward better motion, with the central trade-off being a small rupture risk against markedly better range and function.

  • Early active motion gives better finger motion than passive mobilisation, at a small rupture cost. A systematic review of controlled mobilisation after zone II repair found EAM regimens produced better total active motion than passive (Kleinert/Duran) protocols, with a modest increase in rupture (~5% vs ~4%) [Starr 2013]. The contemporary consensus favours active regimens with robust repairs. Moderate–strong (SR).
  • The Manchester short splint specifically improves IP extension without increasing rupture. A clinical audit comparing the Manchester short splint (MSS) with a traditional full-length dorsal splint in uncomplicated zone II repairs found less PIP extension deficit (median 15° vs 28° at 6 weeks, p=0.003; 6° vs 18° at 12 weeks), a greater DIP flexion arc (59° vs 30°), and more excellent/good Strickland grades with the MSS. Rupture was not significantly different (2/45, 4.4% MSS vs 3/76, 3.9% traditional) [Peck 2014]. The headline advantage is the reduction in PIP flexion contracture. Moderate (single-centre non-randomised audit, Level III–IV).
  • Forearm-based (wrist-blocking) splints constrain the very motion that prevents contracture. A comparison of splint designs found the Manchester short splint allowed greater PIP extension than forearm-based splints [Newington 2021], consistent with the mechanistic rationale that freeing the wrist enables the synergistic IP-extension move. Moderate.
  • Mechanistic basis. Positioning the wrist in ~45° extension minimises the work of flexion required for active digital flexion, lowering the tension on the repair during the active hook fist [Savage 1988]; allowing wrist flexion recruits the extensor tenodesis effect to achieve full active IP extension at low cost — the anti-contracture engine of the regimen. Mechanistic.

B. REHABILITATION / THERAPY EVIDENCE

The rehab questions are (1) active vs passive early mobilisation, (2) splint design, and (3) how to structure the session to prevent both rupture and contracture. The evidence supports a robust repair mobilised with early active motion, a short wrist-free splint, and a fixed safe exercise sequence delivered through formal hand therapy.

  • Early active motion is the modern default for robust repairs. Active regimens (partial-range combined passive/active, place-and-hold, true active flexion) outperform passive-only protocols on motion and are now standard where the core repair is strong enough to tolerate active glide [Tang 2021; Starr 2013]. Moderate–strong.
  • A defined, low-tension active sequence is what makes EAM safe. Therapy guidance emphasises passive flexion first (preconditioning the joints), place-and-hold / active hook fist to glide the tendon at minimal tension, and synergistic wrist-flexion finger-extension to recover IP extension — the explicit structure of the Manchester regimen [Neiduski & Powell 2019; Saint John protocol]. Moderate (consensus + protocol cohorts).
  • Splint design materially changes the contracture outcome. Shorter, wrist-free splinting that permits the synergistic extension move yields greater PIP extension than traditional or forearm-based dorsal splints [Peck 2014; Newington 2021]. Moderate.
  • All flexor repairs are routed through formal hand therapy. The regimen is exercise-order- and tension-sensitive and is delivered with weekly hand-therapy review through the six-week splinted phase; it is not a self-directed pathway. Consensus / standard of care.

Recovery trajectory (expected, evidence-anchored)

Phase Window Restraint Hand use / therapy focus Strength / load Notes
I — Early active motion (in MSS) Week 0–6 Manchester short splint full-time (full wrist flexion, extension to 45°, MCP block 30°, IPs free) Start day 4–5; each session: passive IP flexion → active hook fist from the DIP (wrist extended) → active IP extension (wrist flexed); place-and-hold as guided; weekly therapy No resisted flexion, no gripping/lifting; light safe use excluding the injured finger EAM drives glide + anti-contracture; rupture risk highest now
II — Splint off, soft-tissue / scar Week 6 Splint discontinued (night extension gutter only for residual IP flexion deformity) Restore full passive/active ROM; scar management; tendon glides; blocking if adhesions Still no resisted loading PIP flexion contracture is the complication to chase down here
III — Strengthen / return Week 6–12 Restrictions progressively lifted Graded stretching; progressive grip/pinch strengthening (putty → resistance) Build grip/pinch gradually Return to full / unrestricted activity 10–12 weeks, criterion-based

(Phase windows mirror the precautions in the patient protocol; they are typical guides, not trial-derived deadlines.)


C. KEY CONTROVERSIES / EVIDENCE QUALITY

  1. Active vs passive early mobilisation. EAM gives better motion than passive Kleinert/Duran regimens at a small rupture-rate cost (~5% vs ~4%); it is the contemporary default for strong core repairs [Starr 2013; Tang 2021]. Moderate–strong.
  2. Manchester short splint vs traditional dorsal splint. The MSS audit shows clearly better IP extension and DIP flexion arc with no significant increase in rupture, but it is a single-centre, non-randomised audit (Level III–IV) — the authors themselves call for an RCT. The improvement is consistent with the mechanism (wrist-free synergistic extension), which raises confidence above the study design alone. Moderate; RCT recommended.
  3. The PIP flexion contracture is the outcome that discriminates protocols. Rupture rates are broadly similar across modern regimens; what separates them is residual PIP extension loss, and that is where the short, wrist-free splint and the synergistic-extension move earn their place [Peck 2014; Newington 2021]. Moderate.
  4. Repair strength gates the regimen. EAM is only safe with a robust multi-strand core repair; the protocol assumes that and is surgeon-confirmed per case (zone, suture configuration, pulley venting, concurrent nerve repair). Consensus.

D. EVIDENCE STRENGTH FLAGS (summary)

  • MODERATE–STRONG (SR): early active motion produces better finger motion than passive mobilisation after zone II repair, at a small rupture-rate increase (~5% vs ~4%) [Starr 2013]; modern partial-range active regimens are the contemporary standard [Tang 2021].
  • MODERATE: the Manchester short splint reduces PIP extension deficit (15° vs 28° at 6 wk, p=0.003) and improves DIP flexion arc without significantly increasing rupture (4.4% vs 3.9%) [Peck 2014]; greater PIP extension than forearm-based splints [Newington 2021]; defined low-tension exercise sequence [Neiduski & Powell 2019; Saint John].
  • MECHANISTIC / CONSENSUS: wrist 45° extension minimises work of flexion [Savage 1988]; wrist flexion harnesses the extensor tenodesis effect for active IP extension (anti-contracture); exact phase timings are typical guides, not trial-derived; single-centre non-randomised MSS evidence — an RCT is recommended.

CITATIONS

RAG corpus (180,000+ Orthopaedic articles)

  • Peck FH, et al. A comparative study of two methods of controlled mobilization of flexor tendon repairs in zone 2 (the Manchester short splint). Hand Ther. 2014. DOI: 10.1177/1758998314533306
  • Starr HM, et al. Flexor tendon repair rehabilitation protocols: a systematic review. J Hand Surg Am. 2013. DOI: 10.1016/j.jhsa.2013.06.025
  • Neiduski RL, Powell RK. Flexor tendon rehabilitation in the 21st century: a systematic review. J Hand Ther. 2019. DOI: 10.1016/j.jht.2018.06.001
  • Tang JB. Rehabilitation after flexor tendon repair and others: a safe and efficient update. J Hand Surg Eur Vol. 2021. DOI: 10.1177/17531934211037112
  • Tang JB, et al. (IFSSH flexor tendon committee report). J Hand Surg Eur Vol. 2014. DOI: 10.1177/1753193413500768
  • Newington L, et al. Splinting after flexor tendon repair: comparison of the Manchester short splint with forearm-based splinting on PIP joint extension. Hand Ther. 2021. DOI: 10.1177/17589983211017584

Flexor tendon rehabilitation literature (URLs)

  • Saint John flexor tendon protocol — early active motion regimen for zone II repair (protocol description and outcomes). PMC. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5142498/
  • Savage R. The influence of wrist position on the minimum force required for active movement of the interphalangeal joints. J Hand Surg Br. 1988 (mechanistic basis: wrist extension minimises the work of flexion). https://doi.org/10.1016/0266-7681(88)90258-2

Creative Commons BY-NC 4.0

CC Creative Commons licence
BY Attribution — you must credit the source
NC NonCommercial — not for commercial use

Attribution-NonCommercial 4.0 International


Creative Commons Corporation ("Creative Commons") is not a law firm and does not provide legal services or legal advice. Distribution of Creative Commons public licenses does not create a lawyer-client or other relationship. Creative Commons makes its licenses and related information available on an "as-is" basis. Creative Commons gives no warranties regarding its licenses, any material licensed under their terms and conditions, or any related information. Creative Commons disclaims all liability for damages resulting from their use to the fullest extent possible.

Using Creative Commons Public Licenses

Creative Commons public licenses provide a standard set of terms and conditions that creators and other rights holders may use to share original works of authorship and other material subject to copyright and certain other rights specified in the public license below. The following considerations are for informational purposes only, are not exhaustive, and do not form part of our licenses.

Considerations for licensors: Our public licenses are intended for use by those authorized to give the public permission to use material in ways otherwise restricted by copyright and certain other rights. Our licenses are irrevocable. Licensors should read and understand the terms and conditions of the license they choose before applying it. Licensors should also secure all rights necessary before applying our licenses so that the public can reuse the material as expected. Licensors should clearly mark any material not subject to the license. This includes other CC- licensed material, or material used under an exception or limitation to copyright. More considerations for licensors: wiki.creativecommons.org/Considerations_for_licensors

Considerations for the public: By using one of our public licenses, a licensor grants the public permission to use the licensed material under specified terms and conditions. If the licensor's permission is not necessary for any reason--for example, because of any applicable exception or limitation to copyright--then that use is not regulated by the license. Our licenses grant only permissions under copyright and certain other rights that a licensor has authority to grant. Use of the licensed material may still be restricted for other reasons, including because others have copyright or other rights in the material. A licensor may make special requests, such as asking that all changes be marked or described. Although not required by our licenses, you are encouraged to respect those requests where reasonable. More considerations for the public: wiki.creativecommons.org/Considerations_for_licensees


Creative Commons Attribution-NonCommercial 4.0 International Public License

By exercising the Licensed Rights (defined below), You accept and agree to be bound by the terms and conditions of this Creative Commons Attribution-NonCommercial 4.0 International Public License ("Public License"). To the extent this Public License may be interpreted as a contract, You are granted the Licensed Rights in consideration of Your acceptance of these terms and conditions, and the Licensor grants You such rights in consideration of benefits the Licensor receives from making the Licensed Material available under these terms and conditions.

Section 1 -- Definitions.

a. Adapted Material means material subject to Copyright and Similar Rights that is derived from or based upon the Licensed Material and in which the Licensed Material is translated, altered, arranged, transformed, or otherwise modified in a manner requiring permission under the Copyright and Similar Rights held by the Licensor. For purposes of this Public License, where the Licensed Material is a musical work, performance, or sound recording, Adapted Material is always produced where the Licensed Material is synched in timed relation with a moving image.

b. Adapter's License means the license You apply to Your Copyright and Similar Rights in Your contributions to Adapted Material in accordance with the terms and conditions of this Public License.

c. Copyright and Similar Rights means copyright and/or similar rights closely related to copyright including, without limitation, performance, broadcast, sound recording, and Sui Generis Database Rights, without regard to how the rights are labeled or categorized. For purposes of this Public License, the rights specified in Section 2(b)(1)-(2) are not Copyright and Similar Rights.

d. Effective Technological Measures means those measures that, in the absence of proper authority, may not be circumvented under laws fulfilling obligations under Article 11 of the WIPO Copyright Treaty adopted on December 20, 1996, and/or similar international agreements.

e. Exceptions and Limitations means fair use, fair dealing, and/or any other exception or limitation to Copyright and Similar Rights that applies to Your use of the Licensed Material.

f. Licensed Material means the artistic or literary work, database, or other material to which the Licensor applied this Public License.

g. Licensed Rights means the rights granted to You subject to the terms and conditions of this Public License, which are limited to all Copyright and Similar Rights that apply to Your use of the Licensed Material and that the Licensor has authority to license.

h. Licensor means the individual(s) or entity(ies) granting rights under this Public License.

i. NonCommercial means not primarily intended for or directed towards commercial advantage or monetary compensation. For purposes of this Public License, the exchange of the Licensed Material for other material subject to Copyright and Similar Rights by digital file-sharing or similar means is NonCommercial provided there is no payment of monetary compensation in connection with the exchange.

j. Share means to provide material to the public by any means or process that requires permission under the Licensed Rights, such as reproduction, public display, public performance, distribution, dissemination, communication, or importation, and to make material available to the public including in ways that members of the public may access the material from a place and at a time individually chosen by them.

k. Sui Generis Database Rights means rights other than copyright resulting from Directive 96/9/EC of the European Parliament and of the Council of 11 March 1996 on the legal protection of databases, as amended and/or succeeded, as well as other essentially equivalent rights anywhere in the world.

l. You means the individual or entity exercising the Licensed Rights under this Public License. Your has a corresponding meaning.

Section 2 -- Scope.

a. License grant.

1. Subject to the terms and conditions of this Public License, the Licensor hereby grants You a worldwide, royalty-free, non-sublicensable, non-exclusive, irrevocable license to exercise the Licensed Rights in the Licensed Material to:

a. reproduce and Share the Licensed Material, in whole or in part, for NonCommercial purposes only; and

b. produce, reproduce, and Share Adapted Material for NonCommercial purposes only.

2. Exceptions and Limitations. For the avoidance of doubt, where Exceptions and Limitations apply to Your use, this Public License does not apply, and You do not need to comply with its terms and conditions.

3. Term. The term of this Public License is specified in Section 6(a).

4. Media and formats; technical modifications allowed. The Licensor authorizes You to exercise the Licensed Rights in all media and formats whether now known or hereafter created, and to make technical modifications necessary to do so. The Licensor waives and/or agrees not to assert any right or authority to forbid You from making technical modifications necessary to exercise the Licensed Rights, including technical modifications necessary to circumvent Effective Technological Measures. For purposes of this Public License, simply making modifications authorized by this Section 2(a) (4) never produces Adapted Material.

5. Downstream recipients.

a. Offer from the Licensor -- Licensed Material. Every recipient of the Licensed Material automatically receives an offer from the Licensor to exercise the Licensed Rights under the terms and conditions of this Public License.

b. No downstream restrictions. You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, the Licensed Material if doing so restricts exercise of the Licensed Rights by any recipient of the Licensed Material.

6. No endorsement. Nothing in this Public License constitutes or may be construed as permission to assert or imply that You are, or that Your use of the Licensed Material is, connected with, or sponsored, endorsed, or granted official status by, the Licensor or others designated to receive attribution as provided in Section 3(a)(1)(A)(i).

b. Other rights.

1. Moral rights, such as the right of integrity, are not licensed under this Public License, nor are publicity, privacy, and/or other similar personality rights; however, to the extent possible, the Licensor waives and/or agrees not to assert any such rights held by the Licensor to the limited extent necessary to allow You to exercise the Licensed Rights, but not otherwise.

2. Patent and trademark rights are not licensed under this Public License.

3. To the extent possible, the Licensor waives any right to collect royalties from You for the exercise of the Licensed Rights, whether directly or through a collecting society under any voluntary or waivable statutory or compulsory licensing scheme. In all other cases the Licensor expressly reserves any right to collect such royalties, including when the Licensed Material is used other than for NonCommercial purposes.

Section 3 -- License Conditions.

Your exercise of the Licensed Rights is expressly made subject to the following conditions.

a. Attribution.

1. If You Share the Licensed Material (including in modified form), You must:

a. retain the following if it is supplied by the Licensor with the Licensed Material:

i. identification of the creator(s) of the Licensed Material and any others designated to receive attribution, in any reasonable manner requested by the Licensor (including by pseudonym if designated);

ii. a copyright notice;

iii. a notice that refers to this Public License;

iv. a notice that refers to the disclaimer of warranties;

v. a URI or hyperlink to the Licensed Material to the extent reasonably practicable;

b. indicate if You modified the Licensed Material and retain an indication of any previous modifications; and

c. indicate the Licensed Material is licensed under this Public License, and include the text of, or the URI or hyperlink to, this Public License.

2. You may satisfy the conditions in Section 3(a)(1) in any reasonable manner based on the medium, means, and context in which You Share the Licensed Material. For example, it may be reasonable to satisfy the conditions by providing a URI or hyperlink to a resource that includes the required information.

3. If requested by the Licensor, You must remove any of the information required by Section 3(a)(1)(A) to the extent reasonably practicable.

4. If You Share Adapted Material You produce, the Adapter's License You apply must not prevent recipients of the Adapted Material from complying with this Public License.

Section 4 -- Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that apply to Your use of the Licensed Material:

a. for the avoidance of doubt, Section 2(a)(1) grants You the right to extract, reuse, reproduce, and Share all or a substantial portion of the contents of the database for NonCommercial purposes only;

b. if You include all or a substantial portion of the database contents in a database in which You have Sui Generis Database Rights, then the database in which You have Sui Generis Database Rights (but not its individual contents) is Adapted Material; and

c. You must comply with the conditions in Section 3(a) if You Share all or a substantial portion of the contents of the database.

For the avoidance of doubt, this Section 4 supplements and does not replace Your obligations under this Public License where the Licensed Rights include other Copyright and Similar Rights.

Section 5 -- Disclaimer of Warranties and Limitation of Liability.

a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.

b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES, COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.

c. The disclaimer of warranties and limitation of liability provided above shall be interpreted in a manner that, to the extent possible, most closely approximates an absolute disclaimer and waiver of all liability.

Section 6 -- Term and Termination.

a. This Public License applies for the term of the Copyright and Similar Rights licensed here. However, if You fail to comply with this Public License, then Your rights under this Public License terminate automatically.

b. Where Your right to use the Licensed Material has terminated under Section 6(a), it reinstates:

1. automatically as of the date the violation is cured, provided it is cured within 30 days of Your discovery of the violation; or

2. upon express reinstatement by the Licensor.

For the avoidance of doubt, this Section 6(b) does not affect any right the Licensor may have to seek remedies for Your violations of this Public License.

c. For the avoidance of doubt, the Licensor may also offer the Licensed Material under separate terms or conditions or stop distributing the Licensed Material at any time; however, doing so will not terminate this Public License.

d. Sections 1, 5, 6, 7, and 8 survive termination of this Public License.

Section 7 -- Other Terms and Conditions.

a. The Licensor shall not be bound by any additional or different terms or conditions communicated by You unless expressly agreed.

b. Any arrangements, understandings, or agreements regarding the Licensed Material not stated herein are separate from and independent of the terms and conditions of this Public License.

Section 8 -- Interpretation.

a. For the avoidance of doubt, this Public License does not, and shall not be interpreted to, reduce, limit, restrict, or impose conditions on any use of the Licensed Material that could lawfully be made without permission under this Public License.

b. To the extent possible, if any provision of this Public License is deemed unenforceable, it shall be automatically reformed to the minimum extent necessary to make it enforceable. If the provision cannot be reformed, it shall be severed from this Public License without affecting the enforceability of the remaining terms and conditions.

c. No term or condition of this Public License will be waived and no failure to comply consented to unless expressly agreed to by the Licensor.

d. Nothing in this Public License constitutes or may be interpreted as a limitation upon, or waiver of, any privileges and immunities that apply to the Licensor or You, including from the legal processes of any jurisdiction or authority.


Creative Commons is not a party to its public licenses. Notwithstanding, Creative Commons may elect to apply one of its public licenses to material it publishes and in those instances will be considered the “Licensor.” The text of the Creative Commons public licenses is dedicated to the public domain under the CC0 Public Domain Dedication. Except for the limited purpose of indicating that material is shared under a Creative Commons public license or as otherwise permitted by the Creative Commons policies published at creativecommons.org/policies, Creative Commons does not authorize the use of the trademark "Creative Commons" or any other trademark or logo of Creative Commons without its prior written consent including, without limitation, in connection with any unauthorized modifications to any of its public licenses or any other arrangements, understandings, or agreements concerning use of licensed material. For the avoidance of doubt, this paragraph does not form part of the public licenses.

Creative Commons may be contacted at creativecommons.org.