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Retrospective Cohort Study
©The Author(s) 2026.
World J Orthop. Feb 18, 2026; 17(2): 115188
Published online Feb 18, 2026. doi: 10.5312/wjo.v17.i2.115188
Figure 1
Figure 1 Flow diagram of matching criteria between elderly total knee arthroplasty patients with preoperative frailty. ASA: American Society of Anesthesiologists; BMI: Body mass index; COPD: Chronic obstructive pulmonary disease; mFI: Modified Frailty Index; TKA: Total knee arthroplasty.


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