Acute quadriceps tendon rupture is rare. The gold-standard repair technique is transosseous patellar suture. Biomechanical studies have validated the use of anchors as an alternative. The present study sought to report long-term clinical and radiological results in a series of acute quadriceps tendon rupture repaired with anchors. The study hypothesis was that results are comparable to those of the gold-standard technique.
A retrospective continuous study included 25 knees with acute quadriceps tendon rupture, operated on by a single surgeon between 2007 and 2013: 22 patients; 17 males, 5 females; mean age, 64 years (range: 52–87 years). Modified Bunnell suture was performed, using either 2 anchors (19 knees) or 3 anchors (6 knees). Anchors were positioned under 20° flexion. The factors studied were: active range of motion, muscle strength, patient satisfaction, Lysholm score, return to work, and the radiological behavior of the anchors.
At a mean follow-up of 7 years (range: 3–9 years), all but 1 patient had 0° active extension. Mean active flexion was 128° (range: 110–150°), and mean muscle strength was 4.9/5. Mean Lysholm score was 92. Subjective results proved satisfactory or very satisfactory in 23 cases. Working patients returned to work at a mean 4.2 months. There were no cases of anchor migration or of re-rupture. One poorly tolerated anchor was ablated at 2 years, without functional impact.
Outcomes with anchors were comparable to those of the gold-standard technique. Anchors allow immediate rehabilitation, without risk of anchor migration. The technique provided satisfactory functional recovery.
Level of evidence
IV, retrospective cohort study.Le texte complet de cet article est disponible en PDF.
Keywords : Quadriceps tendon, Rupture, Anchor, Outcomes, Radiographic evaluation
|☆|| Article issued from the SOO (the Orthopedics and Traumatology Society of Western France).