title: Correction of metatarsus primus varus associated with hallux valgus deformity using the arthrex mini tightrope: a report of 44 cases.
abstract: Metatarsus primus varus must be addressed during correction of moderate to severe hallux valgus deformity. As an alternative to proximal osteotomy or first tarsometatarsal fusion for hallux valgus correction, this study presents a series of patients treated using the Arthrex Mini TightRope. A total of 36 patients (44 operations) with hallux valgus and metatarsus primus varus underwent correction using the Arthrex Mini TightRope. Assessment included measurement of radiographic parameters, the American Orthopaedic Foot and Ankle Society (AOFAS) midfoot outcomes score, and the SF-12. The average hallux valgus angle improved from 32.2° to 15.2° (P < .0001). The average first intermetatarsal angle improved from 14.6° to 8.2° (P < .0001). The average distal metatarsal articular angle improved from 17.0° to 9.6° (P < .0001). The average AOFAS midfoot outcomes scores improved from 45.44 to 84.72 (P < .0001). Postoperative SF-12 physical and mental scores averaged 52.99 and 56.63. Only one patient had recurrence of deformity. Correcting metatarsus primus varus in association with hallux valgus deformity using the Arthrex Mini TightRope should be considered a treatment option. This technique is less invasive and seems capable of maintaining correction while allowing for early weight bearing and avoiding the need for a proximal first metatarsal osteotomy or Lapidus procedure.
authors.affiliation: Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA. stephenkayiaros@gmail.com
authors.forename: Stephen
authors.initials: S
authors.lastname: Kayiaros
authors.forename: Brad D
authors.initials: BD
authors.lastname: Blankenhorn
authors.forename: Jordan
authors.initials: J
authors.lastname: Dehaven
authors.forename: Hans
authors.initials: H
authors.lastname: Van Lancker
authors.forename: Peter
authors.initials: P
authors.lastname: Sardella
authors.forename: James T
authors.initials: JT
authors.lastname: Pascalides
authors.forename: Christopher W
authors.initials: CW
authors.lastname: Digiovanni
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005471:Fluoroscopy; D006215:Hallux Valgus / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008682:Metatarsal Bones / Q000601:surgery; D008875:Middle Aged; D009984:Orthopedic Fixation Devices; D010027:Osteotomy; D011183:Postoperative Complications; D012189:Retrospective Studies; D055815:Young Adult