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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
- Publication Year :
- 2018
- Publisher :
- The Korean Orthopaedic Association, 2018.
-
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. 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/m2, 114 knees), group B (25 kg/m2 ≤ BMI < 30 kg/m2, 179 knees), and group C (BMI ≥ 30 kg/m2, 78 knees). Clinical outcomes were measured with the Hospital for Special Surgery Score and Knee Society Score. Radiological evaluation included measurements of knee alignment. 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). Conclusions MIS-TKA in obese patients showed satisfactory clinical and radiological results without significant difference in surgical results compared to nonobese patients.
- Subjects :
- Male
medicine.medical_specialty
5 year follow up
Knee Joint
Total knee arthroplasty
03 medical and health sciences
0302 clinical medicine
Minimal invasive surgery
medicine
Humans
Minimally Invasive Surgical Procedures
Orthopedics and Sports Medicine
030212 general & internal medicine
Obesity
Arthroplasty, Replacement, Knee
Body mass index
Aged
Retrospective Studies
Aged, 80 and over
030222 orthopedics
Skin incision
business.industry
Middle Aged
Osteoarthritis, Knee
medicine.disease
Surgery
Knee arthroplasty
Radiography
Treatment Outcome
Radiological weapon
Orthopedic surgery
Original Article
Female
Implant
business
Follow-Up Studies
Subjects
Details
- Language :
- English
- ISSN :
- 20054408 and 2005291X
- Volume :
- 10
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Clinics in Orthopedic Surgery
- Accession number :
- edsair.doi.dedup.....844223c83eb77f73e77c16fdce9b5ca5