Recurrent glenohumeral instability can be classified into two large groups the acronym TUBS and AMBRI groups. Rockwood, Depalma, and others described that the distinction to TUBS or AMBRI group was the most important factor for the selection of
the
treatment methods in recurrent shoulder dislocation. The commonest lesion in TUBS group is avulsion or rupture of the anterior glenohumeral ligament from the glenoid, which often called Bankart lesion. Recently, various arthroscopic surgical
methods in
cluding stapling, suture and biodegradable stock were reported for the treatment of recurrent shoulder dislocation.
Twenty-one patients who had recurrent anterior instability of the shoulder were treated with arthroscopic repair of the Bankart lesion by suture technique at the Chung-Nam National University Hospital from january-1989 to June-1991.
We assessed arthroscopic findings and results of follow up. All affected shoulder were found various degrees and shapes of the Bankart lesion at the intraoperative arthroscopic examination, and we could identify and classify the Bankart lesion
into
four
different types that were as follows,
1. Type I: Separation of labrum and inferior glenohumeral ligament from the glenoid rim and scapular neck (6 cases).
2. Type II: Separation of labrum with glenoid rim fracture (5 cases).
3. Type III: Above type I or type II lesion with SLAP lesion (4 cases).
4. Type IV: Deficient labrum with detached loose inferior glenohumeral ligament from scapular neck (6 cases).
Also, we could modified the arthroscopic suture technique according to authors classification of the Bankart lesion. The average duration of follow up was sixteen months (range, twelve to twenty-eight months), and results were exellent or good in
all
cases by the Rowe scoring system.
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