KUMJ | VOL. 21 | NO. 4 | ISSUE 84 | OCTOBER - DECEMBER, 2023

Habitual Patella Dislocation in a patient with Osteogenesis Imperfecta
Vaidya RK, Pradhan P

Habitual patella dislocation is a rare entity and its occurrence with osteogenesis imperfecta (OI) has not yet been documented. Various surgical techniques have been described in the literature for its treatment, but no single standard procedure is shown to be effective. A 24-year-old girl, diagnosed with osteogenesis imperfecta, presented with complaints of pain and instability in both knees, more on the right. She was diagnosed to have right habitual patella dislocation. She had prominent quadriceps muscle wasting and X-rays confirmed patella baja. CT scan and MRI suggested trochlear dysplasia, Dejour type A and a normal Tibial tuberosity (TT) - Trochlear groove (TG) distance. She was operated with lateral release, medial plication and tibial tuberosity transfer. She had a full knee range of motion (ROM) and pain-free ambulation in four months. In one year follow-up, she had good functional outcome.
Keyword : Habitual patella dislocation, Lateral release, Medial plication, Osteogenesis imperfecta, Tibial tuberosity transfer