Early experience with over 100 cases of primary TKR using Patient Matched Cutting Blocks

AimTo assess the process of using patient matched cutting blocks in Primary TKA with respect to: radiology, the proposed engineering plans, the process in theatre and cost effectiveness. Background: Patient matched cutting blocks (PMCB) are the subject of much interest in primary TKA. Our unit has experience of over 100 cases with a single system.MethodWe have analysed our initial experience with PMCB. We have compared the sizes of implants used in theatres versus the sizes predicted on the image-generated plans. We have assessed the potential time saving in theatre, during each case and in the turn-around time between cases. We have also looked at the number of trays of instruments used in PMCB versus non-PMCB cases.ResultsIn 5 cases repeat imaging was required, in 3 cases patient movement artefact meant that scans were of insufficient quality and in 2 cases with complex deformity, additional imaging was required to better define the deformity. The tibial size was change intra-operatively in comparison w...