Comparison of Cryo/cuff Systems and intermittent cold compress with hypertonic saline following total knee arthroplasty / 中国组织工程研究

ABSTRACT

BACKGROUND:Swel ing after knee arthroplasty can produce tension bul ae, worsen pain, and even block venous return. Thus, intraventricular pressure of osseous fascia increases, which can block arterial blood circulation, even induce osteofascial compartment syndrome. OBJECTIVE:To evaluate efficacy of Cryf/cuff Systems and intermittent cold compress with hypertonic saline fol owing total knee arthroplasty. METHODS:A total of 60 patients with unilateral total knee arthroplasty were randomly assigned into two groups. Persistent freezing group received treatment with Cryo/cuff Systems after arthroplasty, and intermittent cold group received intermittent cold compress with hypertonic saline after arthroplasty. RESULTS AND CONCLUSION:Significant differences in circumference differences in superior patel ar pole, patel ar midpoint, and thickest point of gastrocnemius muscle were detected between persistent freezing group and intermittent cold group at 1 and 2 days after total knee arthroplasty (P<0.05), but no significant difference was detectable at day 3. Visual analogue scale scores at rest and during activity were significantly lower in the persistent freezing group than those in the intermittent cold group at 1 and 2 days after total knee arthroplasty (P<0.01), but no significant difference was visible at day 3. Range of motion was better in the persistent freezing group than that in the intermittent cold group at 1, 2 and 3 days (P<0.01), but no significant difference was observed at 1 and 2 weeks. Mean skin temperature was higher in the persistent freezing group than that in the intermittent cold group at 3 days (P<0.05). Results suggested that Cryf/cuff Systems could lessen tissue swel ing and pain, increased range of motion compared with intermittent cold compress with hypertonic saline at 1 and 2 days after total knee arthroplasty, but no significant difference was detected at day 3. That is, intermittent cold compress with hypertonic saline can reach the same effect as Cryf/cuff Systems at day 3.