title: The geriatric bunion: correction of metatarsus primus varus and hallux valgus with the Swanson total joint implant.
abstract: The authors have evaluated the long-term results of the Keller/Mayo bunionectomy with replacement of the first metatarsophalangeal joint with a Silastic double-stemmed implant (Swanson design). Examination of 50 preoperative and postoperative radiographs revealed a decrease in the hallux abductus angle of 21.46 +/- 2.66 degrees, and the intermetatarsal angle of 6.40 +/- 0.67 degrees; both of these figures have a statistically significant probability value of 0.05 attached. The mean patient age at time of surgery was 61.31 years; the mean follow-up time was 5.01 months. A literature review of implant arthroplasty for correction of hallux abducto valgus deformity is also presented.
mesh_terms: D000368:Aged; D000886:Anthropometry; D001178:Arthroplasty / Q000379:methods; D005500:Follow-Up Studies; D006215:Hallux Valgus / Q000601:surgery*; D006801:Humans; D007595:Joint Prosthesis; D008683:Metatarsophalangeal Joint / Q000002:abnormalities / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D019736:Prostheses and Implants; D011474:Prosthesis Design; D012826:Silicone Elastomers; D013997:Time Factors; D014033:Toe Joint / Q000601:surgery*
chemical_list: D012826:Silicone Elastomers