The primary anatomical causes for recurrent patellofemoral instability include: A morphologically altered patella An abnormally high patella (patella alta) A dysplastic trochlea, and Laterally positioned tibial tuberosity In 1941, Wiberg et al. classified patellar morphology into the following three distinct types: Type I – the medial and lateral facet are of approximately equal size. Type II – the medial facet is smaller than the lateral facet. Type III – the medial facet is small, has a steep angle, and is convex compared to the lateral facet.
Type II and III are most commonly associated with recurrent patellofemoral instability. Tibial tubercle osteotomy techniques are performed to manage recurrent patellofemoral instabilities by correcting the focal patellar chondral defects through unloading and realignment. Question: Match the correct pairs of osteotomy procedures and the…
