4.5 Article

Low to moderate risk of nerve damage during peroneus longus tendon autograft harvest

Journal

KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
Volume 30, Issue 1, Pages 109-115

Publisher

SPRINGER
DOI: 10.1007/s00167-021-06698-2

Keywords

Peroneus longus tendon; Autograft; Peroneal nerve; Sural nerve; Tendon stripper

Funding

  1. program of China Scholarships Council
  2. National Natural Science Foundation of China [81802208]

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The study evaluates the proximity of the tendon stripper to the peroneal and sural nerves during PLT autograft harvesting. Distances between the tendon stripper and nerves were found to be greater than 5mm during full-thickness PLT harvest, with an initial incision at 2cm proximal to LM being recommended.
Purpose This study aims to evaluate the proximity of the tendon stripper to both the peroneal and sural nerves during peroneus longus tendon (PLT) autograft harvesting. Methods Ten fresh-frozen human cadaveric lower extremities were used to harvest a full-thickness PLT autograft using a standard closed blunt-ended tendon stripper. The distance to the sural nerve from the PLT (at 0, 1, 2 and 3 cm proximal to lateral malleolus (LM), and the distance to the peroneal nerve and its branches from the end of the tendon stripper were measured by two separate observers using ImageJ software. Results The average distance from the PLT to the sural nerve increased significantly from 0 to 2 cm proximal to LM. The average distance to the sural nerve at the LM was 4.9 +/- 1.5 mm and increased to 10.8 +/- 2.4 mm (2 cm proximal to LM). The average distance from the tendon stripper to the deep peroneal nerve was 52.9 +/- 11.4 mm. The average distance to the PLT branch of peroneal nerve was 29.3 +/- 4.2 mm. The superficial peroneal nerve, which coursed parallel and deep to the tendon stripper, was on average 5.2 +/- 0.7 mm from the end of the stripper. No transection injuries of the nerves were observed in any of the ten legs after harvesting. Conclusion This cadaver study found during a full-thickness PLT harvest, the distances between the tendon stripper and the nerves were greater than 5 mm with an initial incision at 2 cm proximal to LM which is recommended.

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