A Newly Modified Salter Osteotomy Technique for Treatment of Developmental Dysplasia of Hip That Is Associated with Decrease in Pressure on Femoral Head and Triradiate Cartilage

Author:

Esmaeilnejad-Ganji Seyed Mokhtar12ORCID,Esmaeilnejad-Ganji Seyed Mohammad Reza3ORCID,Zamani Mohammad4ORCID,Alitaleshi Hesam4ORCID

Affiliation:

1. Clinical Research Development Center, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol, Iran

2. Department of Orthopedics, Babol University of Medical Sciences, Babol, Iran

3. Boston University School of Medicine, Boston, USA

4. Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran

Abstract

Background and Purpose. The Salter innominate osteotomy has been an effective method to treat the developmental dysplasia of hip (DDH) over the past decades; however, several postoperative complications and deficiencies were reported. In this study, we evaluated outcome of a newly modified Salter osteotomy in patients presenting with DDH. Methods. We reviewed retrospectively 76 patients (90 hips) with DDH aged ≥ 18 months, who underwent open reduction and a modified osteotomy by a single surgeon. The distal osteotomy segment of pelvis was shifted anterolaterally in the amount of osteotomy cross-section, but not downwards. The mean age at surgery was 2 years and 11 months (1.5 to 16 years). Femoral shortening was conducted when necessary. The duration of operation varied between 60 and 90 minutes. The mean follow-up was 4 years and one month (range 15 months to 7 years and 9 months). All patients were followed up both clinically (based on the modified MacKay criteria) and radiologically (based on the modified Severin criteria). Results. Clinically, 94.5% of hips had excellent and good results at final follow-up, and only 5.5% had a fair condition. Radiographically, at the final follow-up 77.8% of hips were grade IA (excellent), 12.2% were grade IB, 6.7% were grade II, and 3.3% were grade III (fair). The preoperative mean acetabular index was 47.85° (41° to 59), which decreased to 17.16° (13° to 22°) immediately after the surgery (p<0.0001) and progressed to 11.24° (7° to 19°) at the final follow-up (p<0.0001). The mean initial postoperative center-edge angle was 30.3° (25° to 42°) significantly improved to 39.1 (31° to 56°) at the final follow-up (p<0.0001). Avascular necrosis of femoral head occurred in 4.4% of hips (4 patients). Conclusion. The results show that our modified Salter osteotomy is safe and associated with significant benefit for the management of patients suffering from DDH.

Funder

Babol University of Medical Sciences

Publisher

Hindawi Limited

Subject

General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine

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