Abstract
We report a case of chronic scapholunate ligament insufficiency in a patient with
scaphocapitate coalition. After more than 4 years of mild symptoms, there was no radiological
evidence of progression to scapholunate advanced collapse in spite of minimal load-bearing
repetitive physical activities undertaken by the patient as a professional guitarist.
We believe that scaphocapitate coalition could contribute to mitigate the progression
to scapholunate advanced collapse by preventing abnormal flexion of the scaphoid once
the ligament is not competent anymore. The biomechanical and surgical implications
of this type of carpal coalition are also discussed.
Keywords
scaphocapitate coalition - scapholunate advanced collapse - scapholunate ligament
