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Войти в исследования Operative Orthopadie und Traumatologie · 2018
Bernese periacetabular osteotomy through a double approach : Simplification of a surgical technique.
СтатьяОбзорНазвание и аннотация: Перевод в очереди
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Dienst M, Goebel L, Birk S, Kohn D
Аннотация
OBJECTIVE: Reorientation of the acetabulum to normalize load transfer or avert femoroacetabular pincer impingement to prevent osteoarthritis of the hip.
INDICATIONS: Persisting acetabular dysplasia after closure of growth plates or acetabular malrotation.
CONTRAINDICATIONS: High dislocation of hip, secondary acetabulum, increased misalignment on functional X‑ray, high-grade mobility restriction. Relative: degenerative changes, advanced age.
SURGICAL TECHNIQUE: Bernese periacetabular osteotomy through two incisions; all bone cuts are carried out under direct vision. The osteotomies are equivalent to the classic Ganz method. In a slightly tilted forward lateral decubitus position, a posterior incision is applied for the ischium osteotomy and the caudal portion of the retroacetabular osteotomy. The pubis and ilium osteotomies are performed in a supine position through an anterior approach with subsequent reorientation and screw fixation. The rectus femoris is not dissected unless joint exposure is required.
POSTOPERATIVE MANAGEMENT: Partial weight bearing with 20 kg for the first 6 weeks postoperatively, followed by stepwise transition to full loads after radiological control.
RESULTS: In total, 34 patients (37 hips) were followed up for 20.4 ± 10.3 months. Tönnis osteoarthritis scale levels remained constant. The center-edge angle of Wiberg increased from 13.2 ± 7.5° to 26.5 ± 6.7°, the Tönnis angle (acetabular index) changed from 13.8 ± 6.5° to 3.4 ± 4.4°. At follow-up, the Merle d'Aubigné and Postel score was 16.5 ± 1.4; the modified Harris hip score 87.6 ± 13.9 and the International hip outcome tool (iHOT)-12 78.2 ± 20.3 points. The mean surgical time was 213 ± 29 min. Severe complications were not observed.
INDICATIONS: Persisting acetabular dysplasia after closure of growth plates or acetabular malrotation.
CONTRAINDICATIONS: High dislocation of hip, secondary acetabulum, increased misalignment on functional X‑ray, high-grade mobility restriction. Relative: degenerative changes, advanced age.
SURGICAL TECHNIQUE: Bernese periacetabular osteotomy through two incisions; all bone cuts are carried out under direct vision. The osteotomies are equivalent to the classic Ganz method. In a slightly tilted forward lateral decubitus position, a posterior incision is applied for the ischium osteotomy and the caudal portion of the retroacetabular osteotomy. The pubis and ilium osteotomies are performed in a supine position through an anterior approach with subsequent reorientation and screw fixation. The rectus femoris is not dissected unless joint exposure is required.
POSTOPERATIVE MANAGEMENT: Partial weight bearing with 20 kg for the first 6 weeks postoperatively, followed by stepwise transition to full loads after radiological control.
RESULTS: In total, 34 patients (37 hips) were followed up for 20.4 ± 10.3 months. Tönnis osteoarthritis scale levels remained constant. The center-edge angle of Wiberg increased from 13.2 ± 7.5° to 26.5 ± 6.7°, the Tönnis angle (acetabular index) changed from 13.8 ± 6.5° to 3.4 ± 4.4°. At follow-up, the Merle d'Aubigné and Postel score was 16.5 ± 1.4; the modified Harris hip score 87.6 ± 13.9 and the International hip outcome tool (iHOT)-12 78.2 ± 20.3 points. The mean surgical time was 213 ± 29 min. Severe complications were not observed.