title: Fibrous tether of the distal femur produced unilateral genu valgus with subsequent patellar dislocation: case report and review of the literature.
abstract: Fibrous tether at the distal femur is a rare condition that causes angular deformity of the lower extremity; only 18 cases have been reported previously. We report the case of a 2-year-old boy presenting with unilateral genu valgus. The patient had a subsequent lateral patellar dislocation, 1 year after surgical correction. A second surgery was performed to correct this patellar dislocation. Intraoperative finding indicated contracted lateral patellar retinaculum. To the best of our knowledge, this is the first report of such a finding. The natural history is still not understood. At the 6-month-follow-up visit, the patient still has good results without recurrent patellar dislocation or angular deformity. We also review the literature in terms of proper treatment and results of treatment.
authors.affiliation: aInstitute of Orthopaedics, Lerdsin General Hospital, Medical Services, Ministry of Public Health, Bangkok bDepartment of Orthopaedics, Buddhachinaraj Hospital, Phitsanulok, Thailand.
authors.forename: Songkiat
authors.initials: S
authors.lastname: Thanacharoenpanich
authors.forename: Somchai
authors.initials: S
authors.lastname: Kulkrittaya
authors.forename: Charoenchai
authors.initials: C
authors.lastname: Pakpianpairoj
authors.forename: Prasert
authors.initials: P
authors.lastname: Liupolvanich
authors.forename: Pariyut
authors.initials: P
authors.lastname: Chiarapattanakom
mesh_terms: D002675:Child, Preschool; D005269:Femur / Q000601:surgery*; D005500:Follow-Up Studies; D056304:Genu Valgum / Q000209:etiology* / Q000601:surgery*; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D010027:Osteotomy / Q000379:methods; D031222:Patellar Dislocation / Q000601:surgery*; D013977:Tibia / Q000601:surgery*