A Fisher exact test will be more proper.
Liao
Yuan-Ya
YY
Lee
Tu-Sheng
TS
Lin
Yu-Min
YM
D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D016009:Chi-Square Distribution; D006622:Hip Prosthesis; D006801:Humans; D008279:Magnetic Resonance Imaging; D018482:Muscle, Skeletal / Q000473:pathology*; D011183:Postoperative Complications / Q000473:pathology; D018401:Sample Size; D013710:Tendons / Q000473:pathology*