PURPOSE The purpose of this study was to map saphenous nerve injuries after gracilis tendon harvest, with the aim of contributing knowledge that makes it possible to prevent these injuries. METHODS Twenty-two cadaver limbs were used. Three were dissected to examine fascial structures between the saphenous nerve and the gracilis tendon. In 19 limbs, the gracilis tendon was harvested according to standard operative routine. The saphenous nerve was subsequently exposed by dissection and injuries were recorded. RESULTS A well-defined sub-sartorial fascial layer separated the saphenous nerve from the gracilis tendon. Incisional injuries involving either a medial cutaneous crural branch or the infrapatellar branch were found in 14 of the 19 cases. Non-incisional injuries affecting the sartorial branch of the saphenous nerve (to conform to most surgical literature, we use the term 'sartorial branch' to denote the continuation of the saphenous nerve after departure of the infrapatellar branch) were found in six cases located 5-8 cm proximal and posterior to the gracilis tendon insertion on tibia. The fascia separating the saphenous nerve from the gracilis tendon had been perforated in relation to all non-incisional injuries. CONCLUSIONS Small subcutaneous branches of the saphenous nerve are at risk of injury from the incision, while the sartorial branch is at risk outside the incision area. Descriptions of the location of non-incisional injuries have not been published before and are of clinical relevance, as they can contribute to the prevention of saphenous nerve injuries during gracilis tendon harvest.

中文翻译：

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肌腱肌腱收获可能导致切口和非切口隐性隐神经损伤。

目的这项研究的目的是绘制肌腱收集后隐性大神经损伤的图谱，其目的是提供有助于预防这些损伤的知识。方法使用22具尸体肢体。解剖三个以检查隐神经和nerve肌腱之间的筋膜结构。按照标准的手术程序，在19条肢体中收获了肌腱。随后通过解剖暴露了隐神经并记录了损伤。结果明确定义的-下筋膜层将隐神经与nerve肌腱分开。在19例病例中，有14例发现了涉及内侧皮肤关键分支或pat下分支的切口损伤。在6例病例中发现了影响切口隐神经的分支的非切口损伤（符合大多数外科文献，我们使用术语“切口分支”来表示departure下分支离开后隐神经的延续）5在胫骨上肌腱插入的近端和后方-8 cm。相对于所有非切口性损伤，将隐神经与from肌腱分开的筋膜已经穿孔。结论隐神经的皮下小分支有切开受伤的危险，而结膜分支在切开区域外有风险。之前尚未发表非切口损伤位置的描述，并且与临床相关，