Related Experiment Video
Updated: Dec 21, 2025
Harvesting of Peroneus Longus Tendon Autograft
Published on: September 2, 2025
Successful mid- to long-term outcome after reconstruction of the extensor apparatus using proximal tibia-patellar
Pablo Puerta-GarciaSandoval1, Alejandro Lizaur-Utrilla2,3, Maria A Trigueros-Rentero1
1Unit of Bone Tumors, Department of Orthopaedic Surgery, Arrixaca University Hospital, Murcia, Spain.
Purpose:
The purpose of the study was to assess the outcomes of extensor mechanism reconstruction with proximal tibia-patellar tendon composite allograft.
Methods:
24 consecutive patients treated with allograft-prosthetic composite for proximal tibia tumour resection and a conventional total knee arthroplasty were included. Extensor mechanism reconstruction was performed with a proximal tibia-patellar tendon composite allograft and the suture of the donor tendon to the remnant native patellar tendon. Function was evaluated by the Musculoskeletal Tumor Society score (MSTS) and range of motion. Western Ontario and MacMaster University (WOMAC) and visual analogue scale for pain also were used.
Results:
After a mean follow-up of 11.7 (range 3-15) years, mean MSTS score was 22.4 (range 20-30), mean flexion was 94.0° (range 84°-110°), and mean extension lag was 7.2° (range 0°-18°). The mean VAS-pain was 4.3 (range 2-6), and WOMAC score was 72.4 (range 58-100). There was no failure of the reconstructed extensor mechanism.
Conclusion:
Patellar tendon reconstruction with allogeneic tissue from the proximal tibia allograft sutured to the recipient's remnant patellar tendon provides the mechanical support needed for healing of the reconstructed extensor mechanism with a substantial functional benefit to stabilize active knee extension and successful reconstruction survival at long-term.
Level Of Evidence:
III.
