Retrospective Clinical and Radiological Outcomes after Robotic Assisted Bicompartmental Knee Arthroplasty

Abstract

Purpose. Bicompartmental knee arthroplasty (BiKA) is a favorable alternative to total knee arthroplasty for degenerative disease limited to two knee compartments. Recently developed robotic-assisted systems improved the clinical efficacy of unicompartmental knee arthroplasty by providing enhanced component positioning with dynamic ligament balancing. The purpose of this study was to evaluate the short-term outcomes of patients, undergoing bicompartmental knee arthroplasty at a single institution by a single surgeon using a robotic-assisted system. It was hypothesized that robotic assisted BiKA is a prevailing choice for degenerative disease limited to two knee compartments with good functional results. Methods. A search of the institution's joint registry was conducted to identify patients that underwent robotic-assisted BiKA of the patellofemoral compartment and the medial or lateral compartment. Results. A total number of 29 patients (30 BiKA) with a mean age of 63.6 years were identified who received a patellofemoral resurfacing in combination with medial or lateral compartment resurfacing. Twenty-four out of 29 patients had good to excellent outcome. Conclusion. Robotic assisted bicompartmental arthroplasty using broad indications and only excluding patients with severe deformity and those that have less than 4 mm of joint space in the surviving compartment demonstrated 83% good to excellent results.

The trends in robotic-assisted knee arthroplasty: A statewide database study

“…4,9,10 However, these complications can be remedied by computer navigated and robot-assisted knee arthroplasty, which assists in bone preparation and with postoperative limb alignment. 11 These newer modalities were developed in order to improve the outcomes of knee arthroplasty. Computer-navigated knee arthroplasties utilize preoperative computerized tomography (CT), magnetic resonance imaging (MRI), or infrared studies to register intraoperative landmarks and create a 3-dimensional operation model.…”

A systematic review of MAKO‐assisted unicompartmental knee arthroplasty

“…Kayani et al 14 reported that the average operating time of UKA surgery assisted by the MAKO system was 87.3 min within the learning curve, and the average operating time when surgeons were familiar with operation processes was 61.7 min, which was not different from traditional surgery. Tamam et al 18 reported in 2015 that the average operation time of MAKO‐assisted UKA was 40.5 min (ranging from 23 to 151 min), the shortest operation time in all included literature.…”

Fracture of the Tibial Baseplate in Bicompartmental Knee Arthroplasty

“…The high revision rate, compared with total knee arthroplasty, may be related to several factors such as implant design, patient selection, crude or absent instrumentation, or component malalignment, which can all contribute to the relatively high failure rate [ 24 ]. With more modern instrumentation, including the aid of a robot, the results seem to be more promising with 83% good to excellent results at a mean follow-up of 27 months [ 25 ].…”