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Minimally invasive and computer-assisted total knee arthroplasty versus conventional technique: a prospective,
Zhenxiang Zhang1, Beibei Gu, Wei Zhu
1Orthopedic Department, The Affiliated Taizhou People's Hospital of Nantong University, Taizhou, 225300, Jiangsu, People's Republic of China, ZZM20101113@gmail.com.
Summary
Minimally invasive and computer-assisted total knee arthroplasty (MICA-TKA) shows comparable alignment to conventional TKA (C-TKA). MICA-TKA offers superior short-term clinical outcomes, including better range of motion and knee scores, with reduced blood loss.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Clinical Research
Background:
- Total knee arthroplasty (TKA) is a common procedure for knee osteoarthritis.
- Minimally invasive and computer-assisted techniques aim to improve TKA outcomes.
- Conventional TKA (C-TKA) serves as a benchmark for new surgical approaches.
Purpose of the Study:
- To compare the short-term efficacy of minimally invasive and computer-assisted total knee arthroplasty (MICA-TKA) versus conventional total knee arthroplasty (C-TKA).
- To evaluate differences in blood loss, tourniquet time, clinical scores, range of motion, and radiographic results at 12-month follow-up.
Main Methods:
- Prospective, randomized study involving 87 patients undergoing TKA.
- Patients were randomized into C-TKA (Group A) and MICA-TKA (Group B) groups.
- Standardized pre- and post-operative assessments included Knee Society scores (KSSs), functional scores (KSFSs), range of motion (ROM), and radiographic alignment.
Main Results:
- MICA-TKA demonstrated significantly reduced average blood loss compared to C-TKA.
- Patients in the MICA-TKA group showed significantly superior ROM, KSSs, and KSFSs at 12 months.
- Both techniques achieved similar coronal mechanical axis and femoral rotational alignment.
- No significant difference in tourniquet time was observed between the groups.
Conclusions:
- MICA-TKA provides accurate restoration of leg alignment and component orientation, comparable to C-TKA.
- MICA-TKA leads to superior short-term clinical outcomes compared to C-TKA.
- Further long-term clinical trials are needed to confirm the sustained benefits of MICA-TKA.