Surgical options in chronic extensor tendon subluxation: A case report and a literature review

Ulnar subluxation of the extensor tendons at the metacarpophalangeal joint level after damage to the sagittal bands is a rare problem in nonrheumatoid patients. It is aimed to discuss the treatment options for the extensor tendon subluxation and present a rare chronic case. A 25-year-old male patient presented with the complaint of stucking and snapping feeling in the middle finger when moving it after falling as a child. Type 2 sagittal band injury was detected in which the extensor tendon was subluxated to the ulnar side, and the sagittal band was strengthened with a junctura tendinum flap harvested from the adjacent finger. The patient returned to his daily life, and no recurrence was detected. Extensor tendon subluxation is the instability that occurs in the tendon as a result of damage to the sagittal bands. Many techniques have been described since the ideal technique is not available yet. Techniques that provide realignment by centralizing the extensor tendon are successful ones that can be preferred in chronic sagittal band ruptures and in professional athletes in whom primary repair is not possible.