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  • Title: Bilateral multipartite patellae avulsions associated with a unilateral quadriceps tendon rupture.
    Author: Miles R, Cruz C, Mannino BJ.
    Journal: BMJ Case Rep; 2021 Dec 22; 14(12):. PubMed ID: 34937756.
    Abstract:
    Multipartite (or bipartite) patella is a developmental anomaly that occurs in 2%-6% of individuals. In 50%, the variant is bilateral. Multipartite patella is usually an asymptomatic condition. Quadriceps tendon rupture is also a rare entity occurring mostly in men aged >40 years and usually results from an acute eccentric quadriceps contracture. The authors present a case of a patient with bilateral multipartite patellae that sustained bilateral multipartite avulsions as well as an associated unilateral quadriceps tendon rupture. This constellation of injuries has never been reported in the literature. The patient was treated with excision of the multipartite patella fragments and quadriceps tendon repair on the side with the extensor mechanism disruption. He was treated non-operatively for the contralateral lower extremity multipartite patella avulsion. This report, along with a thorough review of the literature, serves to demonstrate the clinical and radiographic characteristics of this unusual injury.
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