Comparison of the radiological parameters between dynamic-referencing tactile guidance robotic system and Microplasty® instrumentation in unicompartmental knee arthroplasty
Year: 2022
Type: article
Abstract: Unicompartmental knee arthroplasty (UKA) is an effective treatment for anteromedial osteoarthritis of knee.It has certain advantages over total knee arthroplasty including faster recovery times, reduced perioperative morbidity and mortality, and improved return periods to work or sports.[1][2][3] With the help of strict patient selection criteria, advances in surgical techniques such as using intramedullary guides for condylar component positioning, improved implant and instrumentation designs, better polymer material processing and other factors, the literature indicates a five-year cumulative survival rate of UKAs ranging from 98.7 to 100% and a 10-year survival rate of 92 to 97.4%.[4] However, UKA is consideredObjectives: This study aims to compare the radiological outcomes of unicompartmental knee arthroplasty (UKA) performed by a navigation-based robotic system versus Microplasty ® instrumentation.Patients and methods: Between January 2018 and January 2019, a total of 90 knees of 75 patients (65 males, 10 females; mean age: 62.0±9.4 years; range, 50 to 73 years) were included.Among these, 54 knees underwent Oxford mobile-bearing UKA with an Microplasty ® instrumentation set and 36 knees were operated with the aid of a Restoris ® MCK with MAKO navigation-based robotic system.Postoperative anteroposterior and lateral X-rays of all patients were evaluated according to nine different parameters.On the femoral side, femoral varus-valgus angle, flexion-extension angle, femoral condyle posterior fit; on tibial side, tibial component varus/valgus, tibial posterior slope, medial, anterior, posterior and lateral fit of tibial component assessed.Results: There was no significant difference between groups in terms of age, sex, and affected side.On the femoral side, no significant difference was observed in the component position between groups.On the tibial side, tibial component medial fit (p=0.032) and anterior fit (p=0.007) were better in navigation-based robotic system group.Conclusion: Microplasty ® instrumentation may lead to comparable implant positioning compared to a tactile-based navigated robotic instrumentation.
Institution: Istinye University
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4308004826