• Injury · Nov 2017

    Comparative Study

    Reduced survival for uncemented compared to cemented total hip arthroplasty after operatively treated acetabular fractures.

    • John Clarke-Jenssen, Marianne Westberg, Olav Røise, Stein Arne Øvre Storeggen, Tone Bere, Ingunn Silberg, and Jan Erik Madsen.
    • Orthopaedic Department, Oslo University Hospital, PO Box 4956, 0424 Nydalen, Oslo, Norway. Electronic address: Johcla@live.no.
    • Injury. 2017 Nov 1; 48 (11): 2534-2539.

    BackgroundPost traumatic arthritis and avascular necrosis of the femoral head are common complications after operatively treated acetabular fractures. This may cause severe disabilities for the patient, necessitating a total hip arthroplasty. Even though an arthroplasty may provide good symptomatic relief, the long-term results are more uncertain and no consensus exists according to preferred prosthetic designs. With this cohort study, we aimed to investigate the medium to long term arthroplasty survival and clinical results of total hip arthroplasty after operatively treated acetabular fractures.MethodsWe included 52 patients treated with a secondary total hip arthroplasty at a median of 2.4 (0.1-14.1) years after an operatively treated acetabular fracture. The median age was 54 (11-82) years. Cemented arthroplasty was used for 33 patients, 10 patients had an uncemented arthroplasty and 9 patients received a hybrid arthroplasty. Average follow up was 8.0 (SD 5.0) years.ResultsTen-year revision free arthroplasty survival was 79%. Uncemented arthroplasties had a significantly worse 10-year survival of 57%. Arthroplasties performed at a centre without a pelvic fracture service also had a significantly worse 10-years survival of 51%. Cox regression showed similar results with an 8-fold increase in risk of revision for both uncemented arthroplasties and operations performed at a non-pelvic trauma centre.ConclusionTotal hip arthroplasty secondary to an operatively treated acetabular fracture provides good symptomatic relief. These patients are, however, complex cases and are probably best treated at specialist centres with both pelvic trauma surgeons and arthroplasty surgeons proficient in complex revisions present.Copyright © 2017 Elsevier Ltd. All rights reserved.

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