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Updated: May 28, 2026

A Novel Tenorrhaphy Suture Technique with Tissue Engineered Collagen Graft to Repair Large Tendon Defects
Published on: December 10, 2021
Chronic Achilles tendon rupture reconstruction using a free semitendinosus tendon graft transfer
Mohammad Mahdi Sarzaeem1, Mohammad Mahdi Bagherian Lemraski, Farshad Safdari
1Department of Orthopaedics, Imam Hosein Hospital, Shahid Beheshti Medical University, Tehran, Iran. mmszaeem@gmail.com
Purpose:
The purpose of this study was to evaluate the outcomes following reconstruction of the chronic Achilles tendon ruptures with large gaps (>6 cm) using free semitendinosus tendon graft transfer.
Methods:
There were 11 consecutive patients underwent the above-mentioned surgical technique for the treatment of chronically ruptured Achilles tendon contributed in current study and were followed up prospectively for a mean of 25 ± 3 months. The intraoperative tendon defect was greater than 6 cm in all of the patients. Functional and clinical assessment was performed using The American Orthopaedic Foot and Ankle Society (AOFAS) and Achilles Tendon Rupture Score (ATRS).
Results:
The average AOFAS and ATRS improved significantly from 70 ± 5 and 32 ± 6 preoperatively, to 92 ± 5 and 89 ± 4 points post-operatively (P = 0.001). The range of dorsiflexion was significantly limited on the operated side (13 ± 4° vs. 17 ± 4°) (P = 0.04). All patients were able to stand on the tiptoe of injured leg, and no patient walked with a visible limp. Post-operative complications included one patient with symptomatic DVT and 2 patients with superficial infection treated nonoperatively.
Conclusions:
The technique offers good clinical and functional outcomes and is safe. Reconstruction of the chronic Achilles tendon ruptures with free semitendinosus tendon graft in patients with defects greater than 6 cm is recommended.
Level Of Evidence:
IV.
