Increased Glenoid Retroversion Is Associated With Increased Rotator Cuff Strength in the Shoulder

2019 ◽  
Vol 47 (8) ◽  
pp. 1893-1900 ◽  
Author(s):  
Kenneth L. Cameron ◽  
David J. Tennent ◽  
Rodney X. Sturdivant ◽  
Matthew A. Posner ◽  
Karen Y. Peck ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Shoulder Instability ◽  
External Rotation ◽  
Baseline Data ◽  
High Risk Population ◽  
Healthy Population ◽  
Glenoid Version ◽  
The Mean ◽  
Rotation Strength ◽  
Glenoid Retroversion

Background: The rotator cuff muscles are critical secondary stabilizers in the shoulder. Increased glenoid retroversion and rotator cuff strength have been associated with the risk of posterior shoulder instability; however, the effect of increased glenoid retroversion on rotator cuff strength remains unclear. Purpose/Hypothesis: The purpose was to examine the association between glenoid version and rotator cuff strength in the shoulder in a young and healthy population with no history of shoulder instability. The hypothesis was that increased glenoid retroversion would be associated with increases in rotator cuff muscle strength. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A prospective cohort study was conducted over a 4-year period within a high-risk population to identify the risk factors for shoulder instability. Analyzed participants included 574 freshmen entering a United States service academy. Baseline data collected upon entry into the study included magnetic resonance imaging measurements of glenoid version. Rotator cuff strength was also assessed at baseline using a handheld dynamometer. Internal and external rotation strength were assessed with the glenohumeral joint positioned in neutral and in 45° of abduction. The current study represents an analysis of the baseline data from this cohort. Results: The mean age, height, and weight of participants was 18.77 ± 0.97 years, 176.81 ± 8.48 cm, and 73.80 ± 12.45 kg, respectively. The mean glenoid version at baseline was 7.79°± 4.85° of retroversion. Univariate linear regression analyses demonstrated that increased glenoid retroversion was associated with increased internal and external rotation strength of the rotator cuff in neutral and 45° of abduction ( P < .001). Similar results were observed in multivariable models controlling for important confounding variables. Conclusion: The results of this study demonstrate that as glenoid retroversion increases, internal and external rotation strength of the rotator cuff also increase in a young and healthy athletic population. These compensatory changes may contribute to increased glenohumeral dynamic stability in the presence of worse static stability with increasing retroversion.

scholarly journals Does grip strength correlate with rotator cuff strength in patients with atraumatic shoulder instability?

2022 ◽  
Vol 27 (1) ◽  
Author(s):  
Ruqayyah Turabi ◽  
Ian Horsely ◽  
Helen Birch ◽  
Anju Jaggi
Keyword(s):  
Rotator Cuff ◽  
Grip Strength ◽  
Shoulder Instability ◽  
External Rotation ◽  
Assessment Tools ◽  
Healthy Population ◽  
Rehabilitation Programs ◽  
Clinical Scenarios ◽  
Significant Regression ◽  
The Relationship

Abstract Aim To investigate if there is a correlation between grip strength (GS) and rotator cuff (RC) strength in patients with atraumatic shoulder instability (ASI) and to compare the relationship between these two measures with that previously published for a healthy population. Moreover, to determine if testing GS could be incorporated as a surrogate clinical assessment for RC strength in these patients. Methods A total of 20 subjects with ASI were included. Out of the 20 patients, eight presented with bilateral instability, which constituted a total of 28 atraumatic unstable shoulders (N = 28). GS was measured using a Jamar hand-dynamometer. External rotation (ER) and internal rotation (IR) strength was tested in inner and outer ranges using a hand-held dynamometer (HHD). Pearson’s correlation test was computed to investigate the relationship. Multiple linear regression was conducted to predict GS based on RC strength. Results Significant and strong positive correlations were found between GS and inner-range IR (r = 0.764, P < 0.001), inner-range ER (r = 0.611, P = 0.001), outer-range IR (r = 0.817, P < 0.001), and outer-range ER (r = 0.736, P < 0.001). A significant regression equation was found (F (4, 23) = 13.254, P < 0.001), with an R2 of 0.697 indicating that RC strength explained 69.7% of the variance in GS. Conclusions The results support the hypothesis showing that GS is strongly associated with RC strength in ASI patients. The simplicity of handgrip testing allows it to be used in clinical scenarios where sophisticated assessment tools are not available. GS is a convenient means to monitor patient progress during shoulder rehabilitation programs.

Indications and outcomes of glenoid osteotomy for posterior shoulder instability: a systematic review

2021 ◽  
pp. 175857322110560
Author(s):  
Huda Sardar ◽  
Sandra Lee ◽  
Nolan S. Horner ◽  
Latifah AlMana ◽  
Peter Lapner ◽  
...  
Keyword(s):  
Systematic Review ◽  
Shoulder Instability ◽  
Cochrane Central Register ◽  
Posterior Shoulder Instability ◽  
Glenoid Version ◽  
Post Surgery ◽  
Posterior Shoulder ◽  
The Mean ◽  
Persistent Instability ◽  
Glenoid Retroversion

Background There is limited evidence examining glenoid osteotomy as a treatment for posterior shoulder instability. Methods A search of Medline, Embase, PubMed and Cochrane Central Register of Controlled Trials was conducted from the date of origin to 28th November 2019. Nine out of 3,408 retrieved studies met the inclusion criteria and quality was assessed using the Methodological Index for Non-randomized Studies tool. Results In 356 shoulders, the main indication for osteotomy was excessive glenoid retroversion (greater than or equal to approximately −10°). The mean preoperative glenoid version was −15° (range, −35° to −5°). Post-operatively, the mean glenoid version was −6° (range, −28° to 13°) and an average correction of 10° (range, −1° to 30°) was observed. Range of motion increased significantly in most studies and all standardized outcome scores (Rowe, Constant–Murley, Oxford instability, Japan Shoulder Society Shoulder Instability Scoring and mean shoulder value) improved significantly with high rates of patient satisfaction (85%). A high complication rate (34%, n = 120) was reported post-surgery, with frequent cases of persistent instability (20%, n = 68) and fractures (e.g., glenoid neck and acromion) (4%, n = 12). However, the revision rate was low (0.6%, n = 2). Conclusion Glenoid osteotomy is an appropriate treatment for posterior shoulder instability secondary to excessive glenoid retroversion. However, the high rate of persistent instability should be considered when making treatment decisions. Level of Evidence: Systematic review; Level 4

scholarly journals Analysis of glenohumeral morphological factors for anterior shoulder instability and rotator cuff tear by magnetic resonance imaging

2018 ◽  
Vol 26 (2) ◽  
pp. 230949901876810 ◽  
Author(s):  
B Saygi ◽  
N Karahan ◽  
O Karakus ◽  
AI Demir ◽  
OC Ozkan ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Shoulder Instability ◽  
Normal Population ◽  
Anterior Shoulder Instability ◽  
Glenoid Version ◽  
Glenohumeral Instability ◽  
Cuff Tear ◽  
Coronal Height

Objective: The aim of this study was to investigate whether there are glenohumeral morphological differences between normal population, glenohumeral instability, and rotator cuff pathology. Method: In this study, shoulder magnetic resonance (MR) images of 150 patients were evaluated. Patients included in the study were studied in three groups of 50 individuals: patients with anterior shoulder instability in group 1, patients with rotator cuff tear in group 2, and control subjects without shoulder pathology in group 3. Results: There were statistically significant differences between groups in evaluations for glenoid version, glenoid coronal height, glenoid coronal diameter, humeral axial and coronal diameters, and coracohumeral interval distances. Significant differences were observed between groups 2 and 3 in glenoid axial diameter, glenoid coronal height, glenoid depth, humeral coronal diameter, and coracohumeral distances. Conclusion: The results obtained in this study suggest that glenoid version, glenoid coronal height and diameter, humeral diameter, and coracohumeral interval parameters in glenohumeral morphology-related parameters in patients with anterior instability are different from those of normal population and patients with rotator cuff pathology. In cases where there is a clinically difficult diagnosis, these radiological measurements will be helpful to clinicians in diagnosis and treatment planning, especially in cases of treatment-resistant cases.

Management of Massive Rotator Cuff Tears in Active Patients with Minimal Glenohumeral Arthritis: A Prospective Observational Study with Clinical and Radiographic Analyses of Reconstruction using Dermal Tissue Matrix Xenograft

2013 ◽  
Vol 3 (1) ◽  
pp. 80-87
Author(s):  
Alison P Toth ◽  
Anil K Gupta
Keyword(s):  
Rotator Cuff ◽  
Observational Study ◽  
Prospective Observational Study ◽  
External Rotation ◽  
Rotator Cuff Tears ◽  
Massive Rotator Cuff Tears ◽  
Dermal Tissue ◽  
Tissue Matrix ◽  
Rotation Strength

ABSTRACT Objectives To evaluate the clinical and radiographic outcomes of patients undergoing interposition reconstruction of massive, otherwise irreparable rotator cuff tears through a mini-open approach with the use of a porcine dermal tissue matrix. Materials and methods We performed a prospective observational study of 26 patients (27 shoulders) who underwent reconstruction of massive rotator cuff tears using dermal tissue matrix xenograft. Pain level (scale 0-10, 10 = severe pain), active range of motion, and supraspinatus and external rotation strength were assessed. Additional outcome measures included modified American shoulder and elbow score (MASES) and short form-12 (SF-12) score. Clinical and radiographic analyses were performed at an average 32 months follow-up period (minimum 2-year follow-up). Ultrasound imaging (static and dynamic) of the operative shoulder was performed at final followup to assess the integrity of the reconstruction. Results Mean patient age was 60. Mean pain level decreased from 5.1 to 0.4 (p = 0.002). Mean active forward flexion, abduction, and external rotation motion improved from 138.8 to 167.3 (p = 0.024), 117.9 to 149.3 (p = 0.001) and 57.7 to 64.7° (p = 0.31), respectively. Supraspinatus and external rotation strength improved from 7.2 to 9.4 (p = 0.001) and 7.4 to 9.5 (p = 0.001), respectively. Mean MASES improved from 62.7 to 91.8 (p = 0.0007) and mean SF-12 scores improved from 48.4 to 56.6 (p = 0.044). Twenty-one patients (twenty-two shoulders) returned for a dynamic and static ultrasound of the operative shoulder at a minimum 2-year follow-up. Sixteen (73%) demonstrated a fully intact tendon/graft reconstruction. Five (22%) patients had partially intact reconstructions, and one (5%) had a complete tear at the graft-bone interface due to suture anchor pullout as a result of a fall. There were no cases of infection or tissue rejection. Conclusion We present a reproducible surgical technique for the management of massive irreparable rotator cuff tears. In our series, patients demonstrated a significant improvement in both subjective and objective clinical outcomes. Radiographic analysis demonstrated that the majority of patients had a fully intact reconstruction at a minimum 2-year follow-up. Gupta AK, Toth AP. Management of Massive Rotator Cuff Tears in Active Patients with Minimal Glenohumeral Arthritis: A Prospective Observational Study with Clinical and Radiographic Analyses of Reconstruction using Dermal Tissue Matrix Xenograft. The Duke Orthop J 2013;3(1):80-87.

scholarly journals Electromyographical Comparison of Four Common Shoulder Exercises in Unstable and Stable Shoulders

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Aaron Sciascia ◽  
Nina Kuschinsky ◽  
Arthur J. Nitz ◽  
Scott D. Mair ◽  
Tim L. Uhl
Keyword(s):  
Rotator Cuff ◽  
High Activity ◽  
Shoulder Instability ◽  
Glenohumeral Joint ◽  
External Rotation ◽  
Emg Activity ◽  
Moderate Activity ◽  
Serratus Anterior ◽  
Maximum Voluntary Isometric Contraction ◽  
Push Up

This study examines if electromyographic (EMG) amplitude differences exist between patients with shoulder instability and healthy controls performing scaption, prone horizontal abduction, prone external rotation, and push-up plus shoulder rehabilitation exercises. Thirty nine subjects were categorized by a single orthopedic surgeon as having multidirectional instability (n=10), anterior instability (n=9), generalized laxity (n=10), or a healthy shoulder (n=10). Indwelling and surface electrodes were utilized to measure EMG activity (reported as a % of maximum voluntary isometric contraction (MVIC)) in various shoulder muscles during 4 common shoulder exercises. The exercises studied effectively activated the primary musculature targeted in each exercise equally among all groups. The serratus anterior generated high activity (50–80% MVIC) during a push-up plus, while the infraspinatus and teres major generated moderate-to-high activity (30–80% MVIC) during both the prone horizontal and prone external rotation exercises. Scaption exercise generated moderate activity (20–50% MVIC) in both rotator cuff and scapular musculature. Clinicians should feel confident in prescribing these shoulder-strengthening exercises in patients with shoulder instability as the activation levels are comparable to previous findings regarding EMG amplitudes and should improve the dynamic stabilization capability of both rotator cuff and scapular muscles using exercises designed to address glenohumeral joint instability.

A Long Preoperative Duration of Symptoms Is Associated With Worse Functional Outcomes After 1-Stage Arthroscopic Treatment of Rotator Cuff Tears With Shoulder Stiffness

2017 ◽  
Vol 45 (10) ◽  
pp. 2336-2344 ◽  
Author(s):  
Yuzhou Chen ◽  
Shiyi Chen ◽  
Yang Qiao ◽  
Yunshen Ge ◽  
Hong Li ◽  
...  
Keyword(s):  
Cohort Study ◽  
Rotator Cuff ◽  
Functional Outcomes ◽  
External Rotation ◽  
Arthroscopic Treatment ◽  
Rotator Cuff Tears ◽  
Duration Of Symptoms ◽  
Shoulder Stiffness ◽  
Functional Scores ◽  
The Mean

Background: Rotator cuff tears with shoulder stiffness remain a difficult issue. Despite the reported satisfactory results of 1-stage surgery, little information is available regarding the factors that affect clinical outcomes. Purpose/Hypothesis: To evaluate the 1-stage arthroscopic treatment of rotator cuff tears with shoulder stiffness and to present the influence of duration of symptoms (DOS) on postoperative functional outcomes. The hypothesis was that a long preoperative DOS is related to worse functional outcomes. Hypothesis: A long preoperative DOS is related to worse functional outcomes. Study Design: Cohort study; Level of evidence, 2. Methods: A cohort study was performed with consecutive patients who underwent 1-stage surgery between January 2012 and July 2014. Forty-four patients were enrolled in the long DOS group (DOS ≥6 months or LDOS), and 38 were enrolled in the short DOS group (DOS <6 months or SDOS). There were no significant differences in the other variables between the groups. The patients were followed for a mean of 33.8 months, and the functional and radiographic outcomes were compared. Results: Both groups achieved apparent functional postoperative improvements in terms of range of motion, pain, strength, and functional scores ( P < .001 for all). Despite the overall improvements, the patients in the SDOS group had significantly better outcomes according to all functional instruments. The mean postoperative abduction and external rotation at the side in the SDOS group were higher than in the LDOS group (abduction: 162.2° vs 152.8°, respectively [ P = .002]; external rotation: 64.7° vs 56.9°, respectively [ P = .004]). The mean postoperative functional scores in the SDOS group were all higher than in the LDOS group (American Shoulder and Elbow Surgeons [ASES] score: 91.1 vs 81.9, respectively; Constant-Murley score: 76.9 vs 71.8, respectively; Fudan University Shoulder Score [FUSS], 90.6 vs 81.1, respectively), and the mean postoperative visual analog scale (VAS) score for pain in the SDOS group was lower (0.7 vs 1.8, respectively) ( P < .001 for all). The difference in the retear rates was not significant, with 7 retears in the SDOS group and 4 in the LDOS group ( P = .216). Conclusion: One-stage surgery effectively achieved overall improvements. A preoperative DOS of ≥6 months led to poorer functional outcomes, which suggests that surgeons should propose a surgical treatment for this condition before symptoms persist for 6 months.

Clinical Importance of Graft Integrity in Arthroscopic Superior Capsular Reconstruction Using a Minimally Invasively Harvested Midthigh Fascia Lata Autograft: 3-Year Clinical and Magnetic Resonance Imaging Outcomes

2020 ◽  
Vol 48 (9) ◽  
pp. 2115-2128 ◽  
Author(s):  
Clara Isabel de Campos Azevedo ◽  
Ana Catarina Leiria Pires Gago Ângelo ◽  
David Campos-Correia ◽  
Lara Delgado ◽  
Nuno Ferreira ◽  
...  
Keyword(s):  
External Rotation ◽  
Donor Site ◽  
Clinical Importance ◽  
Fatty Degeneration ◽  
Fascia Lata ◽  
Resonance Imaging ◽  
Superior Capsular Reconstruction ◽  
The Mean ◽  
Rotation Strength ◽  
Teres Minor

Background: The clinical importance of graft type and integrity in arthroscopic superior capsular reconstruction (ASCR) remains controversial. Purpose: To assess 3-year clinical and magnetic resonance imaging (MRI) outcomes of ASCR using a minimally invasively harvested fascia lata autograft (FLA) for irreparable rotator cuff tears (IRCTs) and to determine the clinical importance of graft integrity and whether the results change from year 2 to 3. Study Design: Case series; Level of evidence, 4. Methods: A total of 22 consecutive patients who underwent ASCR with a minimally invasively harvested FLA were enrolled in a prospective single-arm study. At 3 years, the patients answered a satisfaction questionnaire and underwent a clinical examination and MRI. The MRI scans were independently reviewed by 3 raters to determine the graft integrity, acromiohumeral interval, supraspinatus atrophy, and fatty degeneration of the rotator cuff muscles. Reliability statistics were calculated, and the outcomes were compared across subgroups of patients with and without complete graft tears. Results: Overall, 21 patients (95.5%) answered the questionnaire, 20/21 (95.2%) were satisfied, 4/20 (20.0%) reported donor site pain, and 19 patients (86.4%) underwent examinations. From preoperatively to 3 years, the mean improvement was 73.68° in elevation (95% CI, 47.59°-99.77°), 89.21° in abduction (95% CI, 66.56°-111.86°), 24.74° in external rotation (95% CI, 4.72°-34.75°), 3.00 in internal rotation (95% CI, 2.36-3.64), 2.61 kg in abduction strength (95% CI, 1.76-3.45 kg), 50.79 on the Constant score (CS; 95% CI, 41.99-59.58), 7.47 on the Simple Shoulder Test (SST; 95% CI, 5.19-9.75), and 36.05% on the subjective shoulder value (SSV; 95% CI, 23.19%-48.92%), which were all significant ( P < .05). From 2 to 3 years, the mean improvement in abduction was 20.26° (95% CI, 5.44°-35.09°), which was significant ( P = .010). At 3 years, the raters perfectly agreed (kappa = 1; P = .000013) that 4 patients (21.1%) had complete graft tears; this subgroup of patients had decreased external rotation strength at 90° of abduction (1.77 ± 0.17 vs 4.45 ± 2.55 kg, respectively; P = .027) and increased grades of infraspinatus (3.50 ± 0.58 vs 2.20 ± 1.01, respectively; P = .030) and teres minor fatty degeneration (3.25 ± 0.96 vs 1.53 ± 0.64, respectively; P = .005) compared with those without a complete graft tear, but the mean CS, SST, and SSV scores did not differ from those of the overall group (69.50 ± 5.20 vs 69.63 ± 18.25; 9.00 ± 2.31 vs 9.74 ± 4.73; and 72.50 ± 15.00 vs 71.58 ± 26.70, respectively). Conclusion: The 3-year clinical outcomes of ASCR using a minimally invasively harvested FLA for IRCTs were good, despite donor site morbidity. Active abduction improved significantly from 2 to 3 years. Complete graft tears were correlated with significantly decreased external rotation strength at 90° of shoulder abduction and increased grades of infraspinatus and teres minor fatty degeneration. Registration: NCT03663036 (ClinicalTrials.gov identifier)

scholarly journals Is Muscle Weakness a Risk Factor of the Development of Rotator Cuff Tendinopathy – A Systematic Review

2020 ◽  
Author(s):  
Cheuk-Kin Kwan ◽  
Man-Chi Ko ◽  
Sai-Chuen Fu ◽  
Samuel Ka-Kin Ling ◽  
Hio-Teng Leong ◽  
...  
Keyword(s):  
Risk Factor ◽  
Rotator Cuff ◽  
Muscle Weakness ◽  
Odds Ratio ◽  
External Rotation ◽  
Limited Range ◽  
Shoulder Injuries ◽  
Limited Range Of Motion ◽  
Rotation Strength ◽  
Rotator Cuff Tendinopathy

Abstract BackgroundUnderlying muscle weakness may explain the inconsistency in the development of rotator cuff tendinopathy in population with similar activity levels. This systematic review aims to assess existing prospective studies to evaluate whether muscle weakness is a risk factor to the development of rotator cuff tendinopathy. MethodsA systematic search was performed using the PRISMA guidelines. Prospective studies measuring muscle strength or stiffness and the incidence of rotator cuff tendinopathy will be included. Quality assessment was performed with the Newcastle-Ottawa Quality Assessment Scale. ResultsThe search yielded 6 studies, with a total of 523 trained overhead athletes followed up for 1 season. External and internal rotation strength was described as protective factors for the development of rotator cuff tendinopathy, with an odds ratio of 0.940 (p < 0.05) and 0.946 (p < 0.01) respectively for each N/m increased in force generated. Limited range of motion of <106o for shoulder external rotation was also described as a risk factor with an odds ratio of 1.12 (p < 0.001).Imbalance between external and internal rotation strength was reported as a risk factor for shoulder injuries in 2 studies, with a relative risk of 2.57 (p < 0.05) reported in 1 of them. Supraspinatus weakness was also reported as a risk factor for shoulder injuries in 1 study, with no odds ratio or relative risk provided. Due to insufficient data, combination into a meta-analysis was not possible. ConclusionsLimited evidence support that weakness of the external rotators, weakness in the internal rotators, and limited range of motion in external rotation are risk factors to the development of rotator cuff tendinopathy. Very limited evidence support that imbalance in external rotator and internal rotator strength, and supraspinatus weakness are risk factors for rotator cuff tendinopathies. Future cohort studies may improve on existing evidence with investigations on more muscle groups, a longer follow-up time, clearly documented injury history, and a stringent diagnosis to rotator cuff tendinopathy.

Reverse shoulder arthroplasty for type 1 sequelae of a fracture of the proximal humerus

2018 ◽  
Vol 100-B (3) ◽  
pp. 318-323 ◽  
Author(s):  
P. Raiss ◽  
G. Alami ◽  
T. Bruckner ◽  
P. Magosch ◽  
P. Habermeyer ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Proximal Humerus ◽  
External Rotation ◽  
Constant Score ◽  
Reverse Shoulder Arthroplasty ◽  
Rotator Cuff Tears ◽  
The Mean ◽  
Rotator Cuff Deficiency

Aims The aim of this study was to analyze the results of reverse shoulder arthroplasty (RSA) in patients with type 1 sequelae of a fracture of the proximal humerus in association with rotator cuff deficiency or severe stiffness of the shoulder. Patients and Methods A total of 38 patients were included: 28 women and ten men. Their mean age at the time of arthroplasty was 73 years (54 to 91). Before the RSA, 18 patients had been treated with open reduction and internal fixation following a fracture. A total of 22 patients had a rotator cuff tear and 11 had severe stiffness of the shoulder with < 0° of external rotation. The mean follow-up was 4.3 years (1.5 to 10). The Constant score and the range of movement of the shoulder were recorded preoperatively and at final follow-up. Preoperatively, radiographs in two planes were performed, as well as CT or arthro-CT scans; radiographs were also performed at final follow-up. Results The mean Constant score improved from 25 points (5 to 47) preoperatively to 57 points (15 to 81) postoperatively. The mean forward elevation of the shoulder increased from 73° (10° to 130°) preoperatively to 117° (15° to 170°) postoperatively. Previous surgery did not influence the outcome. Patients with rotator cuff tears had lower Constant scores than patients without (p = 0.037). Those with preoperative stiffness of the shoulder had lower postoperative external rotation compared with patients without stiffness (p = 0.046). There was no radiographic evidence of loosening. Three complications occurred, leading to revision surgery in two patients. In all, 17 patients rated their result as very good (45%), another 17 as good (45%), two as satisfactory (5%), and two as unsatisfactory (5%). Discussion RSA is an effective form of treatment for patients with type 1 sequelae of a fracture of the proximal humerus associated with rotator cuff deficiency or stiffness of the shoulder, with high rates of satisfaction. Rotator cuff tears and stiffness of the shoulder had an adverse effect on the clinical outcome. Cite this article: Bone Joint J 2018;100-B:318–23.

Arthroscopic Repair for Traumatic Posterior Shoulder Instability

2003 ◽  
Vol 31 (2) ◽  
pp. 203-209 ◽  
Author(s):  
Riley J. Williams ◽  
Sabrina Strickland ◽  
Matthew Cohen ◽  
David W. Altchek ◽  
Russell F. Warren
Keyword(s):  
Shoulder Instability ◽  
Glenohumeral Joint ◽  
Traumatic Event ◽  
External Rotation ◽  
Arthroscopic Repair ◽  
Posterior Shoulder Instability ◽  
Posterior Shoulder ◽  
Additional Surgery ◽  
The Mean ◽  
Bankart Lesions

Background: The role of arthroscopic repair in the treatment of posterior shoulder instability remains poorly defined. Purpose: To evaluate the results of arthroscopic repair of posterior Bankart lesions. Study Design: Retrospective review. Methods: Records were reviewed of 27 shoulders (26 patients). All of the patients were male with a mean age of 28.7 years; in all cases symptoms were preceded by a traumatic event. Fourteen of the patients had 2+ to 3+ posterior translation noted under preoperative anesthesia. The posterior capsulolabral complex was found to be detached from the glenoid rim in all cases; bioabsorbable tack fixation was used for repair. Results: At a mean follow-up of 5.1 years, no patients demonstrated a range of motion deficit. Muscle weakness (grade 4/5) in external rotation was noted in two patients (8%). There was no instability greater than 1+ in the anterior, posterior, or inferior directions. The mean L'Insalata shoulder score was 90.0 ± 13.9. The mean SF-36 physical and mental component scores were 50.4 ± 7 and 53.9 ± 9, respectively. Symptoms of pain and instability were eliminated in 24 patients (92%). Two patients (8%) required additional surgery after arthroscopic repair of the posterior Bankart lesion. Radiographs demonstrated that there had been no progressive glenohumeral joint degeneration. Conclusions: Arthroscopic repair of the posterior capsulolabral complex is an effective means of eliminating symptoms of pain and instability associated with posterior Bankart lesions of traumatic origin.

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