title: Sagittal alignment of the first metatarsophalangeal joint after arthrodesis for rheumatoid forefoot deformity.
abstract: The present study assessed the midterm results of reconstruction for rheumatoid forefoot deformity with arthrodesis of the first metatarsophalangeal (MTP) joint, scarf osteotomy, resection arthroplasty of the metatarsal head of the lesser toes, and surgical repair of hammertoe deformity (arthrodesis of the proximal interphalangeal joint). Special focus was placed on the sagittal alignment of the first metatarsophalangeal joint after arthrodesis. We retrospectively evaluated the postoperative clinical outcomes and radiographic findings for 16 consecutive female patients (20 feet) with symptomatic rheumatoid forefoot deformities. The mean duration of follow-up was 7.9 (range 4 to 13) years. All first MTP joints and first metatarsal bones were fused successfully. The mean value of the American Orthopaedic Foot and Ankle Society and Japanese Society for Foot Surgery clinical scores significantly improved overall, except for 2 patients (10%), who complained of first toe pain at the final follow-up visit owing to sagittal misalignment of the fused first MTP joint. Sagittal alignment of the first metatarsal varies greatly because of the rheumatoid midfoot and hindfoot deformities. Therefore, inclination of the first metatarsal should be considered when determining the first MTP joint sagittal fusion angle.
authors: Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-Ku, Sapporo, Japan.
authors: Akihiko
authors: A
authors: Tanabe
authors: Tokifumi
authors: T
authors: Majima
authors: Tomohiro
authors: T
authors: Onodera
authors: Naohiro
authors: N
authors: Sawaguchi
authors: Takuya
authors: T
authors: Watanabe
authors: Yasuhiko
authors: Y
authors: Kasahara
authors: Daisuke
authors: D
authors: Takahashi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000150:complications; D001174:Arthrodesis; D001178:Arthroplasty; D005260:Female; D005531:Foot Deformities, Acquired / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D005545:Forefoot, Human / Q000000981:diagnostic imaging / Q000601:surgery*; D037801:Hammer Toe Syndrome / Q000601:surgery; D006801:Humans; D008683:Metatarsophalangeal Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D010027:Osteotomy; D011859:Radiography; D012189:Retrospective Studies