Patient-specific partial knee guides

摘要

A surgical system and kit for unicompartmental knee arthroplasty comprising a patient-specific unicompartmental tibial guide 100 having a patient specific body 102 with an inner surface preoperatively configured to nestingly conform and mate in only one position with an anterior portion and a proximal portion of a tibial bone of a specific patient, the tibial guide including a vertical resection channel 136 having a first width formed between first and second flanges 132, 134 of the tibial guide; and a cutting insert 200 having a first plate 210 receivable in the vertical resection channel and changing the first width of the resection channel to a second width smaller than the first width. The insert may have an open channel 206 formed between the first plate and a second plate 212. The guide may comprise a drill guide portion. Also a patient-specific unicompartmental tibial-guide comprising a patient-specific body with an inner surface preoperatively configured to conform and mate in only one position with an anterior portion and a proximal portion of a tibial bone of a specific patient. The guide having a vertical resection channel of variable width for guiding a vertical resection through the proximal portion of the tibial bone.