Case Report| Volume 40, P90-96, January 2023

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Three-stage total knee arthroplasty combined with deformity correction and leg lengthening using Taylor spatial frames and conversion to internal fixation for severe intra- and extra-articular deformities and hypoplasia in a patient with hemophilic knee arthropathy: A case report

Published:November 18, 2022DOI:



      Hemophilic arthropathy is a cause of severe knee deformity, because chronic synovitis due to repeated hemarthrosis affects the area of the epiphyseal plates in juvenile cases. Total knee arthroplasty (TKA) is the standard treatment for end-stage knee arthropathy. However, it is difficult to perform one-stage TKA in patients with severe intra- and extra-articular deformities.

      Case presentation

      We reported a case of hemophilic arthropathy in a 55-year-old male with leg length discrepancy of 4 cm, limited range of knee motion (−40° extension and 85° flexion), intra-articular deformity (medial proximal tibial angle: 69°; mechanical lateral distal femoral angle: 79°), extra-articular deformity at the distal femoral metaphyseal (30° valgus and 45° flexion deformity), and varus malalignment (% mechanical axis: 33%). We planned a three-stage TKA. Firstly, we performed gradual correction and lengthening of the distal femur using Taylor spatial flame. Six months after surgery, we performed conversion surgery from external fixation to internal fixation. Finally, we performed TKA with rotating hinged type implant. Two years after surgery, physical examination showed a normal gait, leg length discrepancy of 2 cm (the right leg was shorter), improvement in the range of knee motion (0° extension and 100° flexion).


      To the best of our knowledge, this presents the first combination of three-stage TKA with correction of femoral deformity and leg lengthening using a Taylor spatial frame and conversion to internal fixation in a patient with hemophilic knee arthropathy and severe intra- and extra-articular deformities.


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