Sung Hyun Lee1, Kyeong Hoon Lim1, Jeong Woo Kim2. 1. Department of Orthopedic Surgery, Wonkwang University Hospital, Iksan, Republic of Korea. 2. Department of Orthopedic Surgery, Wonkwang University Hospital, Iksan, Republic of Korea. Electronic address: serina@wonkwang.ac.kr.
Abstract
PURPOSE: To identify the risk factors for recurrent instability after arthroscopic Bankart repair and evaluate the recurrence rate and functional outcomes. METHODS: A retrospective review was performed of patients with anterior-inferior shoulder instability who underwent arthroscopic Bankart repair between 2008 and 2014. Patients below 30 years of age who were available for follow-up at least for 2 years were sorted into 2 groups according to the presence of recurrent instability. Furthermore, statistical analysis by binary logistic regression analysis included the significance of various risk factors including gender, demographic factors, number of preoperative dislocations, time interval between the first dislocation and the surgery (shorter than 6 months or not), generalized hyperlaxity, concomitant injury, bony Bankart, and off-track lesion. The functional outcomes were assessed with the Rowe and Walch-Duplay scores. RESULTS: A total of 170 shoulders were included (without-recurrence group: 138, recurrent group: 32). The overall postoperative recurrent instability rate was 18.8%. SLAP repair, interval closure, and capsular plication were performed when necessary. However, these additional procedures were not influenced by recurrence (P = .37). The 2 groups showed significant differences in the number of preoperative dislocations (P = .048; adjusted odds ratio [OR] 2-5 times, 6.41; more than 5 times, 8.77), time interval between the first dislocation and surgery (P = .003, adjusted OR 5.62), and off-track Hill-Sachs lesion (P = .04, adjusted OR 4.31). There was significant improvement in the mean Rowe and Walch-Duplay scores at 2 years postoperatively (P < .001 in both cases), but the mean scores were lower in the group with recurrence than in the group without (P = .021 and .014, respectively). CONCLUSIONS: The overall results suggest that surgery within 6 months of the first dislocation should be considered, with meticulous attention in patients with a high number of preoperative dislocations or off-track Hill-Sachs lesions. LEVEL OF EVIDENCE: Level III, retrospective case-control study.
PURPOSE: To identify the risk factors for recurrent instability after arthroscopic Bankart repair and evaluate the recurrence rate and functional outcomes. METHODS: A retrospective review was performed of patients with anterior-inferior shoulder instability who underwent arthroscopic Bankart repair between 2008 and 2014. Patients below 30 years of age who were available for follow-up at least for 2 years were sorted into 2 groups according to the presence of recurrent instability. Furthermore, statistical analysis by binary logistic regression analysis included the significance of various risk factors including gender, demographic factors, number of preoperative dislocations, time interval between the first dislocation and the surgery (shorter than 6 months or not), generalized hyperlaxity, concomitant injury, bony Bankart, and off-track lesion. The functional outcomes were assessed with the Rowe and Walch-Duplay scores. RESULTS: A total of 170 shoulders were included (without-recurrence group: 138, recurrent group: 32). The overall postoperative recurrent instability rate was 18.8%. SLAP repair, interval closure, and capsular plication were performed when necessary. However, these additional procedures were not influenced by recurrence (P = .37). The 2 groups showed significant differences in the number of preoperative dislocations (P = .048; adjusted odds ratio [OR] 2-5 times, 6.41; more than 5 times, 8.77), time interval between the first dislocation and surgery (P = .003, adjusted OR 5.62), and off-track Hill-Sachs lesion (P = .04, adjusted OR 4.31). There was significant improvement in the mean Rowe and Walch-Duplay scores at 2 years postoperatively (P < .001 in both cases), but the mean scores were lower in the group with recurrence than in the group without (P = .021 and .014, respectively). CONCLUSIONS: The overall results suggest that surgery within 6 months of the first dislocation should be considered, with meticulous attention in patients with a high number of preoperative dislocations or off-track Hill-Sachs lesions. LEVEL OF EVIDENCE: Level III, retrospective case-control study.
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