🔴 Impingement in the Tibiofemoral Joint (TFJ) 🔴
1️⃣ Partial Rupture of PCL and Its Consequences:
- A partially ruptured Posterior Cruciate Ligament (PCL) led to an impingement in the medial Tibiofemoral Joint (TFJ), necessitating excision.
- The torn PCL stump, originating from the intercondylar notch, became entrapped in the medial TFJ, causing severe pain.
- There was a chondral injury on the posterior portion of the medial femoral condyle, which was in direct contact with the partially torn PCL stump.
- Synovial hypertrophy accompanied by diffuse fibrosis was observed, indicative of chronic irritation.
Source: Arthroscopy. 2007 May;23(5):565.e1-4.
2️⃣ PCL Entrapment:
- While Cyclops syndrome, a type of anterior cruciate ligament impingement syndrome, is known, and notch impingement from a deltoid-shaped anterior cruciate ligament has been documented, this case presents a novel scenario.
- The entrapped, partially ruptured PCL in the medial TFJ causing severe pain during knee joint movement has not been previously reported.
Source: Arthroscopy. 2007 May;23(5):565.e1-4.
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