title: Computer-Assisted Rotational Acetabular Osteotomy for Patients with Acetabular Dysplasia.
abstract: Rotational acetabular osteotomy (RAO) is a well-established surgical procedure for patients with acetabular dysplasia, and excellent long-term results have been reported. However, RAO is technically demanding and precise execution of this procedure requires experience with this surgery. The usefulness of computer navigation in RAO includes its ability to perform three-dimensional (3D) preoperative planning, enable safe osteotomy even with a poor visual field, reduce exposure to radiation from intraoperative fluoroscopy, and display the tip position of the chisel in real time, which is educationally useful as it allows staff other than the operator to follow the progress of the surgery. In our results comparing 23 hips that underwent RAO with navigation and 23 hips operated on without navigation, no significant difference in radiological assessment was observed. However, no perioperative complications were observed in the navigation group whereas one case of transient femoral nerve palsy was observed in non-navigation group. A more accurate and safer RAO can be performed using 3D preoperative planning and intraoperative assistance with a computed tomography-based navigation system.
authors.affiliation: Department of Orthopaedic Surgery, Yokohama City University, Yokohama, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Inaba
authors.affiliation: Department of Orthopaedic Surgery, Yokohama City University, Yokohama, Japan.
authors.forename: Naomi
authors.initials: N
authors.lastname: Kobayashi
authors.affiliation: Department of Orthopaedic Surgery, Yokohama City University, Yokohama, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ike
authors.affiliation: Department of Orthopaedic Surgery, Yokohama City University, Yokohama, Japan.
authors.forename: So
authors.initials: S
authors.lastname: Kubota
authors.affiliation: Department of Orthopaedic Surgery, Yokohama City University, Yokohama, Japan.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Saito
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery*; D000328:Adult; D005260:Female; D006617:Hip Dislocation / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D010027:Osteotomy / Q000379:methods*; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed; D055815:Young Adult
keywords: Computer-assisted surgery; Hip; Periacetabular osteotomy