Long-Term Restoration of Anterior Shoulder Stability

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Abstract

Various operative techniques are used for treating recurrent anterior shoulder instability, and good mid-term results have been reported. The purpose of this study was to compare shoulder stability after treatment with the 2 commonly performed procedures, the arthroscopic Bankart soft-tissue repair and the open coracoid transfer according to Latarjet.

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Comparison of the subjective shoulder value and the Constant score.

Michael K Gilbart, Christian Gerber (2015)

The purpose of this study was to evaluate the subjective shoulder value (SSV) and to compare it with the Constant score (CS). The SSV is defined as a patient's subjective shoulder assessment expressed as a percentage of an entirely normal shoulder, which would score 100%. Patients who underwent operative treatment for rotator cuff repair (n = 247), arthroplasty (n = 83), or stabilization for recurrent anterior instability (n = 111) were included in this study. Correlation between the SSV and CS was highest postoperatively and was higher in the rotator cuff group (0.80) than in the osteoarthritis (0.69) and instability (0.61) groups. The relative CS could reliably predict the variance in the SSV in patients with rotator cuff tears (54%) and osteoarthritis (41%) and, to a lesser extent, in instability patients (23%). The SSV is an easily administered, responsive, and valid measure of shoulder function. The SSV may offer an improvement over the CS in assessing shoulder instability patients, as the CS may overestimate the results of these patients.

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Long-term results of the Latarjet procedure for the treatment of anterior instability of the shoulder.

C Glorion, D Goutallier, T. J. Allain (1998)

We performed ninety-five consecutive Latarjet procedures for the treatment of recurrent anterior instability of the shoulder between 1969 and 1983. In 1993, we retrospectively reviewed the clinical and radiographic results that were available for fifty-six patients (fifty-eight shoulders) who had been followed for an average of 143 years (range, ten to twenty-three years). The purpose of the study was to determine the prevalence of glenohumeral osteoarthrosis and the factors related to its development after the Latarjet procedure. The procedure was performed for the treatment of recurrent anterior dislocation in fifty shoulders and painful recurrent anterior subluxation in eight. All patients had a radiographic evaluation (three anteroposterior radiographs, with the humerus in external, neutral, and internal rotation, and one lateral radiograph) before the operation and at the latest follow-up examination. At the time of the latest follow-up, none of the patients had recurrent dislocation, six patients had apprehension with regard to possible dislocation, and one had occasional subluxation. According to the system of Rowe et al., fifty-one (88 per cent) of the fifty-eight shoulders had an excellent or good result; five (9 per cent), a fair result; and two (3 per cent), a poor result. Twenty-two shoulders had no glenohumeral osteoarthrosis. Thirty-four shoulders had centered glenohumeral osteoarthrosis (the humeral head remained in front of the center of the glenoid cavity), which was grade 1 in twenty-five shoulders, grade 2 in four, grade 3 in three, and grade 4 in two, and two shoulders had grade-4 eccentric glenohumeral osteoarthrosis (the humeral head was more proximal than normal in relation to the center of the glenoid cavity). Postoperative grade-1 glenohumeral osteoarthrosis, unlike the higher grades, had no effect on the function of the shoulder.

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Results of modified Latarjet reconstruction in patients with anteroinferior instability and significant bone loss.

Stephen S Burkhart, Joe de Beer, Johannes Barth … (2007)

The purpose of this study was to analyze the results of the modified Latarjet procedure for shoulder instability associated with an inverted-pear glenoid (bone loss of at least 25% of the width of the inferior glenoid) or an engaging Hill-Sachs lesion. From March 1996 to December 2002, 102 patients underwent an open Latarjet procedure for shoulder instability with an inverted-pear glenoid, with or without an associated engaging Hill-Sachs lesion, by the 2 senior authors (S.S.B. and J.F.D.), and 47 of them were available for follow-up physical examination. The remaining 55 patients were contacted by telephone or letter to see if they had had recurrent dislocation or subluxation. The mean age of the patients was 26.5 +/- 6.6 years (range, 16 to 41 years). There were 46 male patients and 1 female patient. Preoperatively, mean forward elevation was 177.2 degrees +/- 13.6 degrees (range, 90 degrees to 180 degrees) and mean external rotation with the arm at the side was 55.3 degrees +/- 16.1 degrees (range, 0 degrees to 80 degrees). All patients had a positive apprehension sign preoperatively. The median number of dislocations before surgery was 6, with 20 patients having had more than 15 dislocations preoperatively. The mean follow-up time for the 47 patients who were personally examined was 59.0 +/- 18.5 months (range, 32 to 108 months). Postoperatively, mean forward elevation was 179.6 degrees +/- 2.0 degrees (range, 170 degrees to 180 degrees; gain of 2.4 degrees) and external rotation with the arm at the side was 50.2 degrees +/- 12.6 degrees (range, 22 degrees to 78 degrees; loss of 5.1 degrees). As for postoperative functional scores, the mean Constant score was 94.4 and the mean Walch-Duplay score was 91.7. None of these 47 patients showed any further dislocation, and 1 of them still had a positive apprehension sign (2.2%) indicating subluxation. However, 4 patients out of the total 102 who underwent the modified Latarjet procedure had a recurrence. With 4 recurrent dislocations and 1 recurrent subluxation, there was a 4.9% recurrence rate. The 4 patients with recurrent dislocations were not among the 47 who returned for personal follow-up evaluation. The 2 senior authors (S.S.B. and J.F.D.) have previously reported an unacceptably high recurrence rate (67%) for arthroscopic Bankart repair in the presence of an inverted-pear glenoid with or without an engaging Hill-Sachs lesion. They have recommended an open modified Latarjet procedure in such patients. The present study confirms the validity of that recommendation, because the same 2 surgeons have had only a 4.9% recurrence rate in that same category of patient at a mean follow-up of 59 months. Furthermore, the results of this study show the efficacy of the modified Latarjet procedure in the extremely challenging category of patients who present with such dramatic bone loss that soft-tissue reconstruction, either open or arthroscopic, is not a reasonable option. Level IV, therapeutic case series.