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FIXATION OF ACETABULAR FR ACTURES. IS SINGLE APPROACH SURGERY POSSIBLE?

North Manchester General Hospital, Crumpsall, Manchester M8 6RL

Delays in the surgical treatment of acetabular fractures often results in extensile or combined approaches being required. This study reports the outcome from a regional centre aiming to treat these fractures via a single surgical approach where possible.

Seventy-two patients (73 displaced acetabular fractures) with an average age of 39.5 years (range 15–76 years) were studied with an average follow up period of 45.5 months (range 24–96). All radiographs were reviewed together with a full clinical assessment of each patient including the Harris Hip Score.

Thirty-four fractures were simple and 39 were complex including 27 both column fractures. Eight were noted to have an associated injury to the femoral head. The average time from injury to surgery was 11.7 days (range 1–35 days) with 80 percent of cases being operated on within two weeks after injury.

In 67 fractures (92%), including 24 both column fractures, a single approach alone was used (Anterior Ilioin-guinal 26 cases; Posterior Kocher-Langenbeck 41 cases). Five fractures needed an extensile triradiate approach and only one case required a combined anterior and posterior approach. A congruent reduction (gap or step of 2mm or less) was achieved in 65 cases (89%). Functional outcome was good with an average Harris Hip Score of 85 (range 20–100). There were 2 cases of deep infection (2.7%) and 4 patients (5.5%) required later hip replacement. There were no cases of venous thrombosis. Twenty cases exhibited heterotopic ossification of varying degree but none of these were grade IV.

Conclusion: In most cases, internal fixation of a displaced acetabular fractures is possible via a single surgical approach. Morbidity and complications are much reduced but single approach surgery requires that patients are assessed and treated early and prompt referral to a specialist unit is recommended.

The abstracts were prepared by Mr Tim Briggs. (Editoral Secretary 2003/4) Correspondence should be addressed to him at Lane Farm, Chapel Lane, Totternhoe, Dunstable, Bedfordshire LU6 2BZ, United Kingdom