A study of the correlation between glenohumeral joint congruence and stability in recurrent shoulder dislocations / 中国修复重建外科杂志

OBJECTIVE@#To investigate the correlation between glenohumeral joint congruence and stability in recurrent shoulder dislocations.@*METHODS@#Eighty-nine patients (89 sides) with recurrent shoulder dislocation admitted between June 2022 and June 2023 and met the selection criteria were included as study subjects. There were 36 males and 53 females with an average age of 44 years (range, 20-79 years). There were 40 cases of left shoulder and 49 cases of right shoulder. The shoulder joints dislocated 2-6 times, with an average of 3 times. The three-dimensional models of the humeral head and scapular glenoid were reconstructed using Mimics 20.0 software based on CT scanning images. The glenoid track (GT), inclusion index, chimerism index, fit index, and Hill-Sachs interval (HSI) were measured, and the degree of on/off track was judged (K value, the difference between HSI and GT). Multiple linear regression was used to analyze the correlation between the degree of on/off track (K value) and inclusion index, chimerism index, and fit index.@*RESULTS@#Multiple linear regression analysis showed that the K value had no correlation with the inclusion index ( P>0.05), and was positively correlated with the chimerism index and the fit index ( P<0.05). Regression equation was K=-24.898+35.982×inclusion index+8.280×fit index, R 2=0.084.@*CONCLUSION@#Humeral head and scapular glenoid bony area and curvature are associated with shoulder joint stability in recurrent shoulder dislocations. Increased humeral head bony area, decreased scapular glenoid bony area, increased humeral head curvature, and decreased scapular glenoid curvature are risk factors for glenohumeral joint stability.

Arthroscopic Stapling for Treatment of Recurrent Shoulder Dislocation / 대한정형외과학회잡지

Various methods have been described for sugical management of patients who have recurrent anterior shoulder dislocation. In recent years, great advancements have been made in arthroscopic surgery of anterior shoulder dislocation. From June, 1987 to December, 1989, 10 shoulders in 10 patients who experienced recurrent traumatic anterior dislocation were repaired with the arthroscopic stapling technique. Among them, 6 cases which could be followed for more than 1 year were analyzed. Postoperstive follow-up averaged 21 months (range 1 year to 3 years). The results were summarized as follows: l. Average patient age was 24 years with an age range from 20 to 31 years. All 6 cases were male. 2. The orighinal dislocation involved an injury in all cases. It had occurred between 18 months and 6 years before surgery. Every patients had had 4 or more recurrences. 3. Among the 6 cases, 5 cases were found to have a Bankart lesion and 3 cases, a Hill-Sachs lesion at surgery. 4. There have been no postoperative recurrence up to date. 5. 7 and 10 degrees restriction in external rotation, as compared to the contralateral shoulder, was noted in 2 patients. 6. Clinical results of 6 cases, based on the Rowe shoulder rationg system, were 4 excellent and 2 good. 7. No instances of infection, instrument failure, or major neurovascular complications occurred in this series.

A 14 Cases of Recurrent Shoulder Dislocation Treated by Modified Bristow Operation / 대한정형외과학회잡지

A recurrent shoulder joint dislocation was performed on fourteen cases who were treated by modified Bristow operation from June, 1978 to April, 1981. and following results were obtained. 1. The age of initial dislocation varied from 13 years to 23 years of age with the average of 18. 6 years. 2. The age at operation varied from 20 years to 28 years of age with the average of 23 years. 3. The duration of recurrent dislocaticn varied from 2 years to 8 years with the average of 4.4 years. 4. The times of dislocation varied from 6 to 50 times with the average of 17.1 times. 5. The roentgenograms showed the Hill-Sachs' Iesion in 10cases (71.4%), subluxation in 4 cases (28.6%), and glenoid rim abnormality in 2 cases. 6. The operative findings were Bankart's lesion in II cases(78.6%), glenoid rim erosion in 2 case, and subscapularis laxity in 2 case. 7. The complication and recurrence were not observed in this period. 8. The average limitation of abduction and external rotation were 5. 7 and 12. 2 degree respectively.