title: Metacarpophalangeal joint extensor tendon subluxation: a reconstructive stabilization technique.
abstract: Extensor tendon subluxation can result from a disruption to the extensor retinacular system and/or the sagittal band at the metacarpophalangeal joint. When conservative treatment is insufficient to correct the subluxation, surgical treatment is necessary and various surgical techniques exist. We present a novel stabilization technique to centralize the extensor tendon using a junctura tendinum to lengthen an extensor digitorum communis tendon graft. This technique is simple and effective, creating a strong repair without associated stiffness. To achieve a less morbid, stable repair, we mimicked normal anatomy with minimal disruption to local soft tissue structures. This technique seems to offer biomechanical advantages over previously described techniques and shows successful treatment in the illustrated patient.
authors: Division of Orthopaedic Surgery, Department of Surgery, University of Toronto, and St. Joseph's Health Centre, Department of Orthopaedic Surgery, Toronto, Ontario, Canada.
authors: Amr W
authors: AW
authors: ElMaraghy
authors: Amanda
authors: A
authors: Pennings
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D005383:Finger Injuries / Q000175:diagnosis / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D015601:Injury Severity Score; D007593:Joint Instability / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008662:Metacarpophalangeal Joint / Q000503:physiopathology / Q000601:surgery*; D019637:Orthopedic Procedures / Q000379:methods; D010147:Pain Measurement; D011859:Radiography; D019651:Plastic Surgery Procedures / Q000379:methods*; D020127:Recovery of Function; D018570:Risk Assessment; D013708:Tendon Injuries / Q000175:diagnosis / Q000601:surgery*; D013718:Tensile Strength; D016896:Treatment Outcome