In 2015 a new knee syndrome was discovered – causing pain on the posteromedial femoral condyle (PMFC) . It was identified by the MRI cases of edema between the PMFC, sartorius and/or gracilis tendons. It is confused with medial cartilage tears.
Skeletal Radiol. 2015 Apr;44(4):557-63. doi: 10.1007/s00256-014-2081-5.
Posteromedial knee friction syndrome: an entity with medial knee pain and edema between the femoral condyle, sartorius and gracilis.
Simeone FJ et al.
Skeletal Radiol. 2018 Sep 11. doi: 10.1007/s00256-018-3060-z. in press
Ultrasound-guided injection for the diagnosis and treatment of posteromedial knee
Simeone FJ et al
- medial knee pains 58%
- suspicion of medial meniscus 42%
- a friction syndrome
- 68% right knees
- medial joint line pain 79%
- positive McMurray 21% (clunking)
- snapping senstation 11%
inject ion 40 mg triamcinolone reviewed pain in one case and brought another to 2/10
Comment – when is a knee cartilage not an knee cartilage? – I had previously shown that locking and giving way are not reliable indicators of cartilage tear. Now there is evidence of another cause – with tenderness over posteromedial femoral condyle. I think I have seen this problem before – and just injected it out without realizing what it was.