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Ganz Periacetabular Osteotomy in Acetabular Dysplasia

Seyyed Morteza Kazemi MD, Mohammad Ali Jalili MD*, Mehrnoush Hassas Yeganeh MD

Shahid Beheshti University of Medical Sciences, Tehran, Iran
* Corresponding Author

Introduction: Acetabular dysplasia is common in our country. The experience with periacetabular “Ganz” osteotomy is relatively low. We would like to report our short-term experience in a small group of patients who received such a surgery.

Materials and methods: In a descriptive study, 15 patients with dysplastic acetabula who had undergone “Ganz” pelvic osteotomy were evaluated for their clinical and radiographic results. The pre-operative “acetabular roof obliquity” and “center-edge angle” measurements were compared with the post-operative values. With an average follow-up of 25 months (7 months to 6 years), the cases were also evaluated for any possible side-effects of the surgery.

Results: The pre-operative “acetabular roof obliquity” of 23.8o (13o-32o) preoperatively dropped to 9.6o (3o- 19o) postoperatively. The pre-operative “center-edge angle” of 15.4o (7o-20o) preoperatively changed to 28.6o (25o- 42o) postoperative.

Conclusion: “Ganz” periacetabular osteotomy is an effective procedure in improving the radiographic parameters of “acetabular roof obliquity” and “center-edge angle”. In order to report the clinical outcomes, larger number of cases and longer follow-ups are necessary.

Keywords: Acetabular, Ganz, Osteotomy, Dysplasia