To study the effect of wrist arthroscopy assisted open reduction and internal fixation in the treatment of distal radius fractures.

This study was a prospective study. A total of 82 patients with distal radius fracture who were treated in Mianyang Orthopedic Hospital from January 2014 to December 2018 were selected as the study subjects, all the patients were diagnosed as distal radius fractures by wrist joint CT and X-ray. Association for the Study of Internal Fixation(AO)classification was type C fracture, which was caused by trauma, involving articular surface and unilateral injury. Patients with old fracture, severe osteoporosis and other fractures, abnormal function of important organs and mental illness were excluded.According to random number table method, the patients were divided into study group (n=42) and control group (n=40), in which the study group received carpal arthroscopic assisted open reduction and internal fixation, and the control group received traditional open reduction and plate internal fixation.The clinical efficacy of the two groups was evaluated, and the difference was compared by chi square test. The intraoperative indexes and fracture healing time of the two groups were recorded or counted, and the range of motion of wrist joint was measured before and one year after the operation in the two groups. The upper limb function assessment scale (DASH) and wrist joint self assessment scale (PRWE) were used to evaluate the upper limb function and wrist joint function of the two groups before and one year after the operation, and the data were collected t test was used to compare the difference of measurement data between groups.

The excellent and good rate of the study group was 92.9%, which was much higher than that of the control group (75.0%) (χ²=4.897, P<0.05). The operation time of the study group was significantly longer than that of the control group(t=7.329, P<0.05), but the intraoperative hemorrhage was significantly less than that of the control group (t=12.230, P<0.05); there was no significant difference in fracture healing time between the two groups (t=1.843, P>0.05). The scores of DASH and PRWE in the study group were significantly lower than those in the control group (t=10.196, 5.771, both P<0.05). One year after the operation, the range of motion of wrist in palmar flexion, back extension, radial deviation, ulnar deviation, pronation, supination, and the grip strength of the patients in the study group were better than those in the control group, and there were significant differences between the two groups (P<0.05).

The open reduction and internal fixation with the assistance of wrist arthroscope is effective in the treatment of distal radius fracture, which can promote fracture healing, improve the function of upper limb and wrist joint as soon as possible, and improve the mobility of wrist joint.