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Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_III | Pages 257 - 257
1 Mar 2003
Kiely N Younis U Day J Meadows T
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The results of the Ferguson medial open reduction of the hip for DDH were reviewed to determine the complications, re-operation rate, clinical and radiological outcome. Notes were reviewed for 75 cases, of which 5 were bilateral. X-rays were available for 69 hips and were analysed for Acetabular index (AI) and Centre Edge (CE) angles of the operated and unaffected hips. The hips were assessed for avascular necrosis by the method of Kalamchi and MacEwan and were graded according to Severin.

The mean age at operation was 11.8 months (range 3-23, SD 4.42, mode 11). The mean clinical follow up was 65.1 months (range 4-148, SD 33.4). The mean radiological follow up was 58.2 months (range 3 – 131, SD 31). No further surgical procedure was required for 60 hips (75%). Of the remainder, a Salter osteotomy was performed for 8 hips, of which 6 had additional procedures. 8 hips required a femoral osteotomy, 2 an Arthrogram and one a triple pelvic osteotomy.

The AI improved following surgery, with a rate of increase double that for the unaffected side. The mean centre edge of the operated side was 6 degrees less than the unaffected side. Tables 2 and 3 show that the majority of hips had no avascular necrosis and a good radiological outcome. The results compare favourably with the literature. The conclusion is that the Ferguson medial open reduction has good long-term results with low rates of avascular necrosis.