The lateral retinaculum is the fibrous tissue on the outer side of the kneecap (patella). The kneecap has both a medial (on the inner aspect) and a lateral (on the outer side) retinaculum, and these help to support the kneecap in its position in relation to the femur bone below it.
The lateral retinaculum is an extension of the fibrous 'aponeurosis' of the vastus lateralis muscle (itself a part of the quadriceps muscles making up the 'lap').
External links
- Patello-femoral Pain Syndrome {This article has a good image}
- The KNEEguru - educational site packed with knee content with sections on the lateral retinaculum
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