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Does Obesity Affect Clinical and Radiological Outcomes in Minimally Invasive Total Knee Arthroplasty? Minimum 5-Year Follow-up of Minimally Invasive TKA in Obese Patients.
- Source :
-
Clinics in orthopedic surgery [Clin Orthop Surg] 2018 Sep; Vol. 10 (3), pp. 315-321. Date of Electronic Publication: 2018 Aug 22. - Publication Year :
- 2018
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Abstract
- Background: The aim of this study was to evaluate the clinical and radiological outcomes of minimally invasive total knee arthroplasty (MIS-TKA) in obese patients.<br />Methods: We examined the records of 371 cases of MIS-TKA performed using the mini-midvastus approach from January 2006 to December 2006. According to body mass index (BMI), the cases were classified into group A (BMI < 25 kg/m <superscript>2</superscript> , 114 knees), group B (25 kg/m <superscript>2</superscript> ≤ BMI < 30 kg/m <superscript>2</superscript> , 179 knees), and group C (BMI ≥ 30 kg/m <superscript>2</superscript> , 78 knees). Clinical outcomes were measured with the Hospital for Special Surgery Score and Knee Society Score. Radiological evaluation included measurements of knee alignment.<br />Results: MIS-TKA was performed on all patients. The skin incision size in group A, group B, and group C was 8.2 ± 0.8 cm, 8.3 ± 0.8 cm, and 8.5 ± 0.9 cm, respectively, and the operation time was 86.4 ± 10.4 minutes, 85.9 ± 11.3 minutes, and 89.0 ± 11.4 minutes, respectively, indicating no significant difference among the groups ( p > 0.05). There was no difference in terms of the accuracy of the tibial implant alignment, with 97.6%, 95.2%, and 93.4% of each group showing 90° ± 3° varus angulation ( p > 0.05). With respect to the accuracy of the femorotibial angle, 93.9%, 94.6%, and 90.2% of each group had 6° ± 3° valgus angulation, with group C demonstrating the lowest level of accuracy ( p < 0.05). The preoperative range of motion and Knee Society Score of group C were less than those of groups A and B ( p < 0.05), but there was no notable difference among groups at the postoperative 3-month and 1-year follow-ups ( p > 0.05).<br />Conclusions: MIS-TKA in obese patients showed satisfactory clinical and radiological results without significant difference in surgical results compared to nonobese patients.<br />Competing Interests: CONFLICT OF INTEREST: No potential conflict of interest relevant to this article was reported.
- Subjects :
- Aged
Aged, 80 and over
Female
Follow-Up Studies
Humans
Knee Joint diagnostic imaging
Knee Joint surgery
Male
Middle Aged
Osteoarthritis, Knee diagnostic imaging
Osteoarthritis, Knee surgery
Radiography
Retrospective Studies
Treatment Outcome
Arthroplasty, Replacement, Knee adverse effects
Arthroplasty, Replacement, Knee statistics & numerical data
Minimally Invasive Surgical Procedures adverse effects
Minimally Invasive Surgical Procedures statistics & numerical data
Obesity complications
Osteoarthritis, Knee complications
Subjects
Details
- Language :
- English
- ISSN :
- 2005-4408
- Volume :
- 10
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Clinics in orthopedic surgery
- Publication Type :
- Academic Journal
- Accession number :
- 30174807
- Full Text :
- https://doi.org/10.4055/cios.2018.10.3.315