3.1.3. Joint swelling.
Circumference variation on POD3 and 7 were significantly lower for Group C (2.82 ± 0.44; 1.44 ± 0.46) and D (2.70 ± 0.27; 1.49 ± 0.36) than for Group A (4.25 ± 0.42; 4.01 ± 0.30) and B (4.23 ± 0.40; 3.90 ± 0.40) (The clinical effect among the 4 groups.HSS = Hospital for Special Surgery, POD = postoperative day, P-LOS = postoperative length of stay.