A Rare Case of Bilateral Congenital Radial Head Dislocation: A Case Report

Congenital radial head dislocation (CRHD) is a rare deformity of the upper extremity that may be sporadic or genetic in origin. While most of the cases are unilateral and asymptomatic, bilateral involvement is very rare. This condition may be related to genetic syndromes such as Ehlers-Danlos and Turner syndromes, or it may appear as an isolated anomaly. The current pathology is the deterioration of the anatomical relationship between the humerus and the head of the radius due to a developmental anomaly.

In our study, we present a 71-year-old male patient who experienced elbow pain during daily activities for about 2 years. Our patient has no history of trauma. He has been able to move functionally independently throughout his life. Physical examination revealed flexion, supination, and pronation limitations in the range of motion of the elbow joint. Plain radiograph (X-ray) and three-dimensional-computed tomography imaging revealed bilateral anterior radius head dislocation, capitellum hypoplasia, ovoid radial head, long radial neck, and shallow trochlear incisura.

This case shows that bilateral CRHD, which is extremely rare, can be managed with minimal symptoms and can be successfully managed with conservative treatment. Reporting similar cases will contribute to a better understanding of the natural history of this rare condition and the most appropriate treatment strategies.