title: Scaphoid nonunion and flexor pollicis longus tendon rupture.
abstract: Four patients presented with a rupture of the flexor pollicis longus tendon that was associated with a longstanding scaphoid nonunion. A radiocarpal arthrosis was present in 3 of the 4 patients and a dorsiflexed intercalated segment instability deformity was also seen in 3 of the 4 patients. Three patients underwent surgery consisting of an osteosynthesis with an iliac bone graft for the scaphoid nonunion and a palmaris longus tendon graft for the ruptured flexor pollicis longus tendon. An osseous union of the scaphoid and a functional active range of motion of the thumb interphalangeal joint (33 degrees on average) was attained in all 3 of the patients treated surgically. Preoperative radiologic examinations and intraoperative findings suggest that the volarly protruding distal scaphoid segment is the cause of the rupture.
authors.affiliation: Department of Orthopaedics, Shinshu University School of Medicine, Asahi, Matsumoto City, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Saitoh
authors.forename: Y
authors.initials: Y
authors.lastname: Hata
authors.forename: N
authors.initials: N
authors.lastname: Murakami
authors.forename: Y
authors.initials: Y
authors.lastname: Nakatsuchi
authors.forename: H
authors.initials: H
authors.lastname: Seki
authors.forename: K
authors.initials: K
authors.lastname: Takaoka
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D016025:Bone Transplantation; D002348:Carpal Bones / Q000293:injuries* / Q000473:pathology / Q000601:surgery; D005500:Follow-Up Studies; D005593:Fracture Fixation, Internal; D005599:Fractures, Ununited / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis; D016059:Range of Motion, Articular / Q000502:physiology; D012421:Rupture; D013708:Tendon Injuries / Q000175:diagnosis / Q000601:surgery*; D014954:Wrist Injuries / Q000175:diagnosis / Q000601:surgery*