title: Changes of blood flow of the femoral head after subtrochanteric osteotomy in Legg-Perthes' disease: a serial scintigraphic study.
abstract: Serial quantitative scintigraphic studies using 99mTc-methylene diphosphonate were performed on 25 hips with Legg-Perthes' disease to evaluate changes in local blood flow of the femoral head after subtrochanteric varizational and/or derotational osteotomy. Studies were made preoperatively and were repeated postoperatively at 2, 4, 6, and 8 weeks at 3 and 6 months, at 1 year, and finally at 2 years after osteotomy. The relative vascularity of the affected femoral head at 2 weeks after osteotomy was significantly decreased as compared with the preoperative value. Thereafter, it increased steadily, reaching the preoperative level by 6 months with no further statistically significant increase at < or = 2 years. Our scintigraphic study showed that local blood flow of the femoral head does not increase significantly after subtrochanteric femoral osteotomy in Legg-Perthes' disease.
authors.affiliation: Department of Orthopedic Surgery, Seoul National University Children's Hospital, Korea.
authors.forename: D Y
authors.initials: DY
authors.lastname: Lee
authors.forename: S C
authors.initials: SC
authors.lastname: Seong
authors.forename: I H
authors.initials: IH
authors.lastname: Choi
authors.forename: C Y
authors.initials: CY
authors.lastname: Chung
authors.forename: B S
authors.initials: BS
authors.lastname: Chang
mesh_terms: D001783:Blood Flow Velocity; D002648:Child; D002675:Child, Preschool; D005260:Female; D005269:Femur / Q000601:surgery*; D005270:Femur Head / Q000098:blood supply* / Q000000981:diagnostic imaging; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D010027:Osteotomy; D011877:Radionuclide Imaging; D013669:Technetium Tc 99m Medronate
chemical_list: D013669:Technetium Tc 99m Medronate