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近端指间关节置换术

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PIP joint replacement addresses painful arthritis in the middle finger joint when non-surgical options fail.

Updated May 2026
一幅手绘插图,展示中指关节置换植入物。
近端指间关节是手指三个关节中的中间关节。置换术通过植入物对关节进行表面修复,而不是将其完全融合。 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。

为何建议进行此手术

您的外科医生建议您进行近端指间关节置换术,通常称为 PIP 关节置换术。该手术用人工关节替换您手指中受损的关节,以治疗磨损性关节炎。通常在非手术治疗未能充分缓解疼痛或僵硬时提供此选项。

此手术旨在改善活动度和稳定性,同时减轻疼痛。对于食指而言,这是一种可靠的选项,但在中指中较少见。大多数患者在中位时间为 8 周后重返工作岗位。虽然感染并不常见,但约五分之一的患者可能在 5 年内需要翻修手术。主要目标是恢复功能并提供长期疼痛缓解,以便您更舒适地使用手部。

手术前

您需要在手术前禁食,并遵医嘱停用某些药物。请安排人员驾车送您回家,并穿着舒适的衣物。您可能需要接受X光检查、血液检测或麻醉评估,以评估您的健康状况并制定最佳治疗方案。您的外科医生将通过关节上方的单一开放切口进行手术。该入路可直接暴露病灶,以便用新植入物替换受损骨骼。您应将所有当前服用的药物清单带入医院。

手术当天

您到达医院后,将见到您的外科医生和麻醉师。本手术将在全身麻醉下进行。手术期间您将完全入睡。部分患者可能还会接受区域神经阻滞以缓解术后疼痛;麻醉师将根据您的具体情况在手术当天决定。

您的外科医生将在您的手指上做一个常规切口以到达关节。随后,您将被转移至手术室。手术后,您将在复苏室苏醒。在您返回病房前,医疗团队将对您进行密切监测。

手术过程

您的外科医生将在手指关节前方做一个切口。这种开放入路可为需要修复的区域提供清晰的视野。在某些手术中,关节会略微弯曲,以便更好地进入内部组织。

在关节内部,外科医生会移除磨损的关节面,并用新部件进行替换。这种关节表面置换术可形成一个光滑、稳定的关节,其活动度优于以往的传统方案。在某些情况下,会收紧一小条组织吊带以提供支撑。如有必要,外科医生还可能将下方较小的关节进行融合,以帮助您的手指更自由地活动。

新关节安装到位且功能良好后,外科医生会用缝线缝合切口。这些缝线通常为可吸收缝线,或可在后期拆除。随后会敷上敷料,以保护该区域,助您开始愈合。

术后

您将在恢复室苏醒,并通过常规药物进行疼痛管理。您的手部将被敷料包裹,并可能佩戴简单的吊带或支具以提供支撑。您的外科医生会在手指上方做一个单一切口以完成手术。大多数患者在该手术后需住院一晚,但部分患者可在当天回家。术后24小时内需有人陪同照顾您。您可以尽早开始活动手指,以保护肌腱修复。大多数患者在术后中位时间为8周时恢复工作。如果您在术前已有压痛,部分患者可能会感到轻微疼痛,持续时间长达3个月。

恢复

在术后的最初几周内,您的手部会出现一定程度的肿胀和酸痛。这是正常的,因为您的身体正在从关节上方的单个切口处愈合。如果您在术前就有压痛,可能会注意到轻微疼痛持续长达3个月。您的外科医生将指导您如何在家中管理这种不适。

您的恢复过程包括一个受控的活动计划,以帮助您安全地活动手指。您将与职业治疗师合作约12周,在恢复活动的同时保护肌腱修复。您可能会佩戴吊带或支具,使手指保持在舒适的位置,通常弯曲20至30度。一旦肿胀消退且您可以无痛抓握,就可以在家中进行简单的任务。

您的康复过程是独特的,您的时间表可能与他人不同。随着您活动的恢复,您的外科医生和物理治疗师将调整您的计划。您将逐步恢复至完全功能,确保您的关节保持稳定和活动自如。信任这个过程并遵循您医疗团队的建议,以获得最佳效果。

可能出现的并发症

大多数患者预后良好,但偶尔也会出现一些问题。您的外科医生和医疗团队会密切监测您,以便尽早发现任何问题。

有时,长指并不适合进行此类关节置换。如果您属于这种情况,您的外科医生将评估风险是否对您而言过高。

术后翻修手术较为常见。最常见的原因是负责伸直手指的肌腱出现问题。您可能会发现无法完全伸直手指,或感到手部突然无力。若出现这种情况,请立即联系您的外科医生。

部分关节置换可能在五年内需要翻修手术。您可能还需要进行多次手术以修复关节。如果您的手指再次出现疼痛或感觉不稳定,请立即告知您的外科医生。

术后感染并不常见。然而,如果您注意到伤口周围出现扩散性红肿、深部搏动性疼痛且普通止痛药无法缓解,或出现发热,请立即联系诊所。

如果您因杜普伊特伦挛缩(Dupuytren disease)导致手指严重僵硬,可能会出现并发症。您可能会感到肿胀或疼痛加重,且症状未改善。您的外科医生将讨论管理这种情况的最佳方案。

如果您多个手指患有骨关节炎,出现问题的风险与仅置换一个手指的风险相似。您仍应向医疗团队报告任何新出现的疼痛或活动受限。

本页的并发症表格列出了典型的发生率,如需具体数据请参阅。

何时联系我们

如果您出现发热、伤口红肿加重或渗出,请立即联系我们。如突发剧烈疼痛、小腿肿胀或呼吸困难,请前往急诊。如果您感觉手指麻木或无法活动,请立即联系我们。术后长达3个月内可能会有轻微疼痛。再次手术较为常见,通常与肌腱问题有关。如果您出现这些症状,请不要等到下次复诊。


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