Tibial tubercle osteotomies are used to treat patients who suffer from patellofemoral instability (PFI) or painful patellar maltracking. By moving the bone (tibial tubercle), it can correct the malalignment of the patella in the groove (trochlea) of the femur (thigh bone) and eliminate symptoms of instability and decrease the symptoms of arthritis. Often patients who suffer from patellar maltracking have chronic anterior knee pain. This is often manifested as pain with going up and down stairs and or sitting for prolonged periods of time. Tibial tubercle osteotomies are only effective in patients who do not yet have bone on bone osteoarthritis between their patella and femur (patellofemoral joint).
TTO can be performed in conjunction with Medial Patellofemoral Ligament Reconstruction or cartilage repair surgery. Whereas the procedure is done to cure instability in patients who have an unstable kneecap, the procedure is performed to decrease symptoms of arthritis in patients who need this procedure. In other words, we cannot cure arthritis with a knee arthroscopy or with this procedure but can significantly decrease the symptoms of pain by reducing the forces on the patella.