Abstract:[Objective] To compare the clinical consequence of capsular suture (CS), single bone tunnel repair (SBT) and Y-shaped dou-ble bone tunnels repair (DBT) of Palmer type IB wrist triangular fibrocartilage complex (TFCC) tear. [Methods] A retrospective researchwas conducted on 49 patients who had Palmer type IB TFCC tear repaired arthroscopically in our hospital from June 2014 to September2023. According to the preoperative doctor-patient communication, the patients were divided into three groups. Of them, 14 patients re-ceived CS, 19 received SBT, and 16 cases received DBT. The perioperative period, follow-up and imaging data of the three groups were com-pared. [Results] All patients in the 3 groups were operated on successfully. The CS group was significantly superior to the SBT and DBTgroups in terms of operation time [(106.5±15.4) min vs (170.6±15.7) min vs (163.1±19.2) min, P<0.001] and intraoperative blood loss [(14.0±3.5) ml vs (50.1±15.8) ml vs (46.7±13.4) ml, P<0.001], whereas the CS group took significantly longer external fixation time than the SBTgroup and DBT group [(50.1±6.1) days vs (33.6±7.2) days vs (31.9±4.8) days, P<0.001]. All of them were followed up for (14.0±5.6) monthsin a mean, and the CS group resumed full weight-bearing activity significantly later than the SBT and DBT groups [(55.8±3.1) days vs (45.1±3.3) days vs (37.5±5.5) days, P<0.001]. The VAS score, Mayo score, extension-flexion ROM, ulnar-radial deviation ROM and pronation-su-pination ROM were significantly improved in three groups over time (P<0.05). At the last follow-up, the SBT group were significantly betterthan the DBT group in VAS score and ulnar-radial deviation ROM (P<0.05), while the DBT group was significantly superior to the SBTgroup in terms of Mayo score, extension-flexion ROM and pronation-supination ROM (P<0.05). Moreover, both DBT and SBT groups weresignificantly better than CS group regarding abovesaid items (P<0.05). As for imaging, the radioulnar distance, TFCC continuity and radioul-nar recess edema were significantly improved in all the three groups at the last follow-up compared with those preoperatively (P<0.05),which in the DBT group were significantly better than those of SBT group (P<0.05), while in SBT group was significantly better than in CSgroup (P<0.05). [Conclusion] Wrist arthroscope-assisted double-transosseous fixation for type IB TFCC tear was safe and effective, and su-perior to single-transosseous and capsule suture techniques.