Overview
Bipartite patella is a congenital anomaly characterized by incomplete ossification of the patella, often asymptomatic but can lead to pain, particularly in adolescents and young adults due to sports or trauma 12.Diagnosis
Radiographic findings: Presence of a separate ossification center within the patella visible on X-ray 12.
Clinical presentation: Pain localized to the patellar region, exacerbated by activity 12.
Imaging: MRI may be used to confirm bipartite patella and assess soft tissue involvement 1.Management
Nonoperative treatment: Initial management typically includes rest, activity modification, and physical therapy 12.
Adjunctive therapies: Low-intensity pulsed ultrasound for 20 minutes daily can promote bone union and pain relief in pediatric patients 2.
Surgical intervention: Arthroscopic excision considered for persistent pain unresponsive to nonoperative treatment 1.Special Populations
Pediatrics: Low-intensity pulsed ultrasound shows promise in achieving bone union and pain resolution 2.
Comorbidities: No specific management adjustments noted for comorbidities in the provided abstracts 12.Key Recommendations
Initiate with nonoperative management including rest and physical therapy for painful bipartite patella (Evidence: Moderate 12).
Consider low-intensity pulsed ultrasound as a non-invasive adjunctive treatment for pediatric patients with persistent symptoms (Evidence: Weak 2).
Arthroscopic excision may be indicated for patients who fail to respond to prolonged nonoperative treatment (Evidence: Expert opinion 1).References
1 Carney J, Thompson D, O'Daniel J, Cassidy J. Arthroscopic excision of a painful bipartite patella fragment. American journal of orthopedics (Belle Mead, N.J.) 2010. link
2 Kumahashi N, Uchio Y, Iwasa J, Kawasaki K, Adachi N, Ochi M. Bone union of painful bipartite patella after treatment with low-intensity pulsed ultrasound: report of two cases. The Knee 2008. link