Distal realignment and medial patellofemoral complex reconstruction for the correction of patellofemoral instability in a patient with transtibial amputation.

Patellofemoral instability (PFI) is a multifactorial condition typically observed following initial traumatic patellar dislocation. PFI depends on various factors such as limb alignment, bony structure, and the integrity of static and dynamic stabilizers. Patients with below-knee amputation have a higher risk of experiencing PFI. This report describes a successful case involving a patient with patellofemoral instability and a transtibial amputation. The patient was effectively treated with distal realignment and patellar stabilization achieved by reconstructing the medial patellofemoral complex (MPFC).