Abstract Summary
The effect of trochlear groove depth on lateral patellar stability following simulated tibial tubercle osteotomy was investigated using a combined statistical shape modelling and musculoskeletal simulation approach. Knee models with trochlear grooves ranging from shallow to deep were generated using a statistical shape model. In a Monte Carlo approach, 750 musculoskeletal models were created with random medial and anterior patella tendon (PT) transfer distances. An overground walking trial was simulated for each model with a 200N lateral perturbation force applied to the patella in early stance. In knees with deep trochlear grooves, lateral patella displacement due to the perturbation decreased with medial PT transfer distance, indicating increased lateral stability. However, for shallow trochlear grooves, stability increased with small transfer distances but decreased with larger transfers. These results demonstrate the importance of articular geometry to functional surgical outcomes.
Sign in to ORCID