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    Safety of modified Stoppa approach for Ganz periacetabular osteotomy: A preliminary cadaveric study
    (TURKISH ASSOC ORTHOPAEDICS TRAUMATOLOGY, 2016) Elmadağ, Nuh Mehmet; Uzer, Gökçer; Yıldız, Fatih; Ceylan, Hasan H.; Acar, Mehmet Ali
    Objective: The aim of this cadaveric study was to investigate the efficacy of the modified Stoppa approach in Ganz periacetabular osteotomy (PAO). Methods: The Ganz PAO was performed on 10 hemipelvises with normal hips, from 5 cadavers using the modified Stoppa approach through the Pfannenstiel incision. All of the osteotomies were performed under fluoroscopic control and direct visualizing the osteotomy site from the same incision. After the osteotomy, the acetabulum was medialized and redirected anterolaterally, and fixed with 2 screws. The neurovascular structures and the joints were examined by dissecting the soft tissues after fixation of the osteotomies. Outcome parameters were center-edge (CE) angle, the distances between the osteotomy and anterior superior iliac spine (ASIS), and between the osteotomy and the sciatic notch, neurovascular and joint penetrations. Results: After the osteotomy, the mean CE angle was improved from 19.8 degrees to 25.2 degrees, mean distance between the osteotomy and ASIS was 3.1 cm, and the mean distance between the osteotomy and the sciatic notch was 10.2 mm. The neurovascular structures and the joints were examined by dissecting the soft tissues after fixation of the osteotomies. No damage to the joint, surrounding arteries, veins or nerves was detected in any of the cadavers. Conclusions: Bilateral dysplastic hips can be treated with a 10 cm, cosmetically more acceptable incision in the same session using this approach. Quadrilateral surface of the acetabulum can be directly seen using this approach and the osteotomy can be safely performed. (C) 2016 Turkish Association of Orthopaedics and Traumatology. Publishing services by Elsevier B.V.
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    Safety of modiŞed Stoppa approach for Ganz periacetabular osteotomy: A preliminary cadaveric study
    (2016) Elmadağ, Nuh Mehmet; Uzer, Gökçer; Yıldız, Fatih; Ceylan, Hasan H.; Acar, Mehmet Ali
    Objective: The aim of this cadaveric study was to investigate the efŞcacy of the modiŞed Stoppa approachin Ganz periacetabular osteotomy (PAO).Methods: The Ganz PAO was performed on 10 hemipelvises with normal hips, from 5 cadavers using themodiŞed Stoppa approach through the Pfannenstiel incision. All of the osteotomies were performedunderfluoroscopic control and direct visualizing the osteotomy site from the same incision. After theosteotomy, the acetabulum was medialized and redirected anterolaterally, andŞxed with 2 screws. Theneurovascular structures and the joints were examined by dissecting the soft tissues afterŞxation of theosteotomies. Outcome parameters were center-edge (CE) angle, the distances between the osteotomyand anterior superior iliac spine (ASIS), and between the osteotomy and the sciatic notch, neurovascularand joint penetrations.Results: After the osteotomy, the mean CE angle was improved from 19.8to 25.2, mean distance between the osteotomy and ASIS was 3.1 cm, and the mean distance between the osteotomy and the sciaticnotch was 10.2 mm. The neurovascular structures and the joints were examined by dissecting the softtissues afterŞxation of the osteotomies. No damage to the joint, surrounding arteries, veins or nerveswas detected in any of the cadavers.Conclusions: Bilateral dysplastic hips can be treated with a 10 cm, cosmetically more acceptable incisionin the same session using this approach. Quadrilateral surface of the acetabulum can be directly seenusing this approach and the osteotomy can be safely performed.© 2016 Turkish Association of Orthopaedics and Traumatology. Publishing services by Elsevier B.V. This isan open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)