[Distal femur replacement in extensive defects of the distal femur in revision arthroplasty].

[Distal femur replacement in extensive defects of the distal femur in revision arthroplasty]. Oper Orthop Traumatol. 2020 Jul 27;: Authors: Kohlhof H, Jaenisch M, Koop S, Friedrich M, Wirtz CD Abstract OBJECTIVE: Use of distal femur replacement implants in advanced bone defects after multiple bone-damaging revision surgery on the knee joint. INDICATIONS: Advanced femoral bone defects (AORI IIb and III defects) in revision arthroplasty of the knee joint. CONTRAINDICATIONS: Persistent or current joint infection, general infection, defect and/or nonreconstructable insufficient extensor apparatus. SURGICAL TECHNIQUE: Standard access including existing skin scars, arthrotomy, removal of cement spacer if necessary and removal of multiple tissue samples; preparation of tibia first to define the joint line, then preparation of the femur. Determining the resection height of the remaining femur corresponding to the preoperative planning. Gradual drilling using flexible medullary drills and then preparation by femoral rasps. Two stem systems are available for coupling to the distal femur (MUTARS). First there is the standard MUTARS stem (available lengths of 90, 120 and 160 mm); if longer shafts are required, so-called revision shaft (RS) stems are necessary (stems available in 150, 200 and 250 mm). In case of extensive femoral defects extension sleeves in different lengths can be used to reconstruct the femur. Afte...
Source: Operative Orthopadie und Traumatologie - Category: Orthopaedics Authors: Tags: Oper Orthop Traumatol Source Type: research