title: Hip dislocation during lengthening of congenital short femur.
abstract: Hip dislocation is a serious but rarely reported complication of femoral lengthening in congenital short femora. We report a retrospective series of three hip dislocations that occurred during lengthening, analyze the factors contributing to the dislocation, and discuss the treatment of this difficult problem. The average lengthening achieved was 9 cm. We found progressive acetabular dysplasia and decreasing center edge angle. Closed reduction failed. Treatment included soft tissue release, open reduction with femoral shortening, and acetabular procedures. At a mean follow-up of 4.4 years, two patients had a good modified Mckay score and a modified Severin score of 3. Excessive lengthening should be avoided.
authors.affiliation: Children's Orthopaedic Centre, Mumbai, Maharashtra, India.
authors.forename: Arjun A
authors.initials: AA
authors.lastname: Dhawale
authors.forename: Ashok N
authors.initials: AN
authors.lastname: Johari
authors.forename: Amit
authors.initials: A
authors.lastname: Nemade
mesh_terms: D000077:Acetabulum / Q000473:pathology / Q000601:surgery; D000293:Adolescent; D001848:Bone Diseases, Developmental / Q000209:etiology / Q000473:pathology; D001852:Bone Lengthening / Q000009:adverse effects*; D002648:Child; D005260:Female; D005269:Femur / Q000002:abnormalities / Q000601:surgery*; D005593:Fracture Fixation, Internal / Q000379:methods; D006617:Hip Dislocation / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D007870:Leg Length Inequality / Q000151:congenital / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D011183:Postoperative Complications / Q000209:etiology*; D012189:Retrospective Studies