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Knee extensor mechanism allograft reconstruction following chronic disruption
J Murgier1, P Boisrenoult2, N Pujol2
1Service d'orthopédie-traumatologie, Centre Hospitalier de Versailles, 78150 Le Chesnay, France; Service d'orthopédie-traumatologie, Hôpital Pierre-Paul-Riquet, 308, avenue de Grande-Bretagne, 31059 Toulouse, France.
Orthopaedics & Traumatology, Surgery & Research : OTSR
|October 17, 2015
Summary
Allograft reconstruction effectively restores knee extension in chronic extensor mechanism disruption. This surgical technique shows promising functional recovery and patient-reported outcomes after one year.
Area of Science:
- Orthopedic Surgery
- Musculoskeletal Reconstruction
Background:
- Chronic disruption of the extensor mechanism presents complex management challenges in orthopedics.
- Allograft reconstruction is a viable surgical option for addressing these complex cases.
Purpose of the Study:
- To detail the surgical procedure for extensor mechanism allograft reconstruction.
- To present preliminary outcomes of this allograft technique in patients with chronic extensor mechanism disruption.
Main Methods:
- The study involved five patients undergoing allograft reconstruction using the entire extensor mechanism (anterior tibial tubercle, patellar ligament, patella, quadriceps tendon).
- Surgical technique involved either complete removal or bone groove creation for the native patella, with allograft fixation under tension in full knee extension.
- Minimum follow-up duration was one year.
Main Results:
- All five patients successfully recovered active knee extension post-surgery.
- Mean postoperative Knee injury and Osteoarthritis Outcome Score (KOOS) was 55.5.
- Mean postoperative International Knee Society (IKS) function score was 68.5, and the IKS knee score was 83.
Conclusions:
- Extensor mechanism allograft reconstruction is a feasible surgical option for chronic disruptions.
- The technique demonstrated successful restoration of active extension and acceptable functional outcomes at one-year follow-up.
