Objective:To explore the value of high-frequency ultrasound in evaluating adhesion after repair for tendon rupture of hand.Methods:The relevant data of 270 patients with tendon rupture of hand were retrospectively analyzed.According to the postopera-tive functional rehabilitation plan,they were divided into study group(functional rehabilitation based on high-frequency ultrasound,n=150)and control group(conventional functional rehabilitation,n=120).Value of high-frequency ultrasound in postoperative adhesion evaluation,functional rehabilitation exercise and hand function recovery was analyzed.Results:Compared with 1 month after operation,adhesion was improved,PPT scores for dominant hand,bilateral coordination,and assembly tasks were improved,and the MMDT time was significantly shortened at 3 months after operation(P＜0.05).Meanwhile,PPT and MMDT of the study group were significantly better than those of the control group at 3 months after operation(P＜0.05).PPT indicators were negatively correlated with adhesion status(P＜0.05),while MMDT time was positively correlated with adhesion status(P＜0.05).Conclusion:High-frequency ultra-sound can clearly display adhesion in patients with tendon rupture of hand after repair,which is closely related to hand function.The hand function rehabilitation plan developed based on high-frequency ultrasound results can promote hand function recovery.