The aim of this study is to investigate the role of tibial tubercle osteotomy (TTO) on the subjective and objective outcomes following medial patellofemoral ligament reconstruction (MPFL-R) in patients with an increased tibial tubercle-trochlear groove (TT-TG) distance with or without patella alta.
This Pilot RCT will assess the feasibility of conducting this study for:
1. The ability to recruit study patients 2. Adherence to the study protocol 3. Completion rates of patient follow-up at a minimum of 12 months post-operative
Age 13-30 years
Symptomatic recurrent lateral patellofemoral instability
TT-TG ≥15mm measured on MRI or ≥18mm on CT scan
Closed physes (confirmed on knee x-rays)
Caton-Deschamps ratio ≥ 1.4 on lateral radiographs
Femoral anteversion ≥ 25 degrees on diagnostic imaging rotational profile
Tibial external rotation ≥ 45 degrees on diagnostic imaging rotational profile
High-grade trochlear dysplasia requiring trochleoplasty
Banff Sport Medicine Foundation
Lead sponsor
Canadian Orthopaedic Foundation
Collaborator
CONMED Corporation
Collaborator