Partial quadriceps tendon ruptures are rare and they are usually managed non-operatively, provided that the extensor mechanism is intact. In case the extension mechanism is compromised, a more aggressive treatment is required, which includes surgical repair of the tendon. We present an extremely rare case of a 42-year-old male lifter who sustained a quadriceps tendon delamination tear, after lifting weights. Careful clinical examination revealed a compromised extension mechanism of the knee. Proper imaging confirmed the diagnosis of partial but significant rupture of the undersurface of the quadriceps tendon, which was treated operatively (standard tendon repair with the Krakow technique and three transosseous tunnels) with a very good outcome.
Keywords: delamination; extensor mechanism knee injuries; insall-salvati ratio; quadriceps tendon; tendon tear.
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