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- Title
Minimally invasive navigation-assisted versus conventional total knee arthroplasty: a meta-analysis.
- Authors
Shin, Young-Soo; Kim, Hyun-Jung; Ko, Young-Rok; Yoon, Jung-Ro
- Abstract
<bold>Purpose: </bold>It is unclear whether the minimally invasive navigation-assisted (MINA) or conventional (CONv) approach for primary total knee arthroplasty (TKA) leads to better clinical and radiographic outcomes. This meta-analysis compared the clinical and radiographic outcomes of the MINA and CONv approaches after primary TKA. It was hypothesized that there was no difference in clinical and radiographic outcomes between the two surgical approaches for primary TKA.<bold>Methods: </bold>This meta-analysis reviewed all studies that compared surgical time, incision length, flexion range of motion (ROM), Knee Society Score ( KSS), coronal mechanical axis (CMA), and coronal femoral component angle (CFCA) with various measurement tools, from direct interview to plain radiography, between the MINA and CONv approaches.<bold>Results: </bold>Five studies met the inclusion/exclusion criteria for the meta-analysis. The findings of this study suggest that surgical time (95 % CI -18.51 to 39.09; n.s.), KSS (95 % CI -8.55 to 30.84; n.s.), CMA (95 % CI -1.01 to 0.54; n.s.), and CFCA (95 % CI -0.91 to 2.97; n.s.) were similar between the two surgical approaches, whereas incision length (95 % CI -5.18 to -3.69; P < 0.001) was significantly shorter in the MINA approach and flexion ROM (95 % CI 14.26-19.01; P < 0.001) was significantly greater in the MINA approach.<bold>Conclusions: </bold>There were no significant differences in clinical and radiographic outcomes, including surgical time, KSS, CMA, and CFCA, in patients who underwent MINA and CONv approach for primary TKA, but the MINA approach resulted in a slightly shorter incision length and increased flexion ROM than the CONv approach. Therefore, if particular attention has to be paid to patient's selection with appropriate counselling and surgeon's experience, MINA approach can provide early clinical benefit when compared with CONv approach. Besides, orthopaedic surgeons need to master the MINA and CONv approaches because both approaches have similar clinical and radiographic outcomes.<bold>Level Of Evidence: </bold>Therapeutic study, Level II.
- Subjects
TOTAL knee replacement; COMPUTER-assisted surgery; LAPAROSCOPIC surgery; META-analysis; HEALTH outcome assessment; RANGE of motion of joints; COMPARATIVE studies; MINIMALLY invasive procedures; RESEARCH methodology; MEDICAL cooperation; RESEARCH; EVALUATION research; TREATMENT effectiveness
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2016, Vol 24, Issue 11, p3425
- ISSN
0942-2056
- Publication type
journal article
- DOI
10.1007/s00167-016-4016-2