PT  - JOURNAL ARTICLE
AU  - Colin J. Carroll
AU  - Michael Nammour
AU  - Jeffrey Reese
AU  - Lacey Lavie
AU  - Michael Warren
AU  - Sean Waldron
TI  - Patellar Dislocation and Fracture After Medial Patellofemoral Ligament Reconstruction in a Patient With Osteogenesis Imperfecta
AID  - 10.31486/toj.21.0025
DP  - 2022 Mar 20
TA  - Ochsner Journal
PG  - 80--84
VI  - 22
IP  - 1
4099  - http://www.ochsnerjournal.org/content/22/1/80.short
4100  - http://www.ochsnerjournal.org/content/22/1/80.full
SO  - Ochsner J2022 Mar 20; 22
AB  - Background: Patellar instability is a common orthopedic condition in the pediatric population. Many factors contribute to patellar instability, including trochlear dysplasia. However, patellar instability and its treatments are not well documented in the literature for patients with osteogenesis imperfecta.Case Report: After medial patellofemoral ligament (MPFL) reconstruction, a 17-year-old male with osteogenesis imperfecta had a patellar dislocation that resulted in a patellar fracture. The patient subsequently had a revision of his MPFL reconstruction, and at 2½ years postoperation has had no episodes of recurrent patellar instability.Conclusion: The combination of bone fragility, trochlear dysplasia, and strength of the allograft used for MPFL reconstruction compared to the patient's bone strength led to dislocation and patellar fracture. Research into alternative methods for patellar fixation and postoperative physical therapy protocols for patients with osteogenesis imperfecta is needed. Special considerations must be made for this patient population.