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📌 Medial Synovial Fold of the PCL
- The medial synovial fold of the posterior cruciate ligament (PCL) is a normal anatomical variant that can occasionally produce symptoms.
- This fold can be classified into three types based on its morphology and potential for causing impingement.
✅ Classification of Medial Synovial Folds
1️⃣ Type A
- No definite medial synovial fold.
- Least likely to cause issues.
2️⃣ Type B (Inferior-Short Type)
- Small synovial protrusion at the medial border.
- Generally short, less likely to cause impingement or symptoms.
3️⃣ Type C (Inferior-Long Type)
- Longer fold extending beyond an imaginary line from the medial tibial spine to the posterolateral aspect of the medial femoral condyle.
- Significantly associated with PCL impingement and symptoms.
✅ Clinical Implications
- While PCL synovial folds are generally normal structures, they can sometimes cause pain if they become entrapped.
- This condition may necessitate surgical excision to alleviate the symptoms.
- In cases of vague, unexplained knee pain, careful observation of the PCL fold on MRI is crucial to identify any potential issues.
References
- J Comput Assist. Sep-Oct 2016;40(5):799-802
- Arthrosc Orthop Sports Med 2020;7:12-15
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#MedialSynovialFold #PCL #KneePain #Orthopedics #MRI #KneeSurgery #SportsMedicine #SynovialFold #PCLImpingement #MedicalResearch
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