• Arch Orthop Trauma Surg · Jan 2000

    Comparative Study

    Bipolar versus total hip endoprosthesis: functional results.

    • D Smrke, R Beden, and V Stankovski.
    • Department of Traumatology, University Medical Centre, Ljubljana, Slovenia. smrke@mf.uni-lj.si
    • Arch Orthop Trauma Surg. 2000 Jan 1; 120 (5-6): 259-61.

    AbstractSome functional parameters of the hip-joint 3.3 years on average (range 2-8.6 years) after hip arthroplasty are compared with regard to two types of hip endoprostheses: the total (TEP) and the bipolar (BPEP). Flexion, extension, abduction, adduction, and internal and external rotation were measured for 75 patients with BPEP type Self-Locking, for 11 patients with BPEP type Vario-Cup, and for 43 with TEP type Lubinus. One-way analysis of variance with respect to co-variances was used for statistical testing of the measured data. It was found that flexion, abduction and adduction were significantly higher in the BPEP endoprosthesis (P < 0.05). The results obtained are favourable for the bipolar hip endoprosthesis, and they can be related to the biomechanical differences between both types of hip endoprosthesis.

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