6 Partial Articular-Sided Supraspinatus Tear Repair

2019 ◽  
Keyword(s):  
Supraspinatus Tear

scholarly journals Surgical Treatment Outcomes for Everted Bursal Flap of Delaminated Supraspinatus Tear

2021 ◽  
Vol 9 (3) ◽  
pp. 232596712199042
Author(s):  
Hyungsuk Kim ◽  
Chu Hwan Byun ◽  
Sung Bin Han ◽  
Hyun Seok Song
Keyword(s):  
Los Angeles ◽  
Constant Score ◽  
Early Postoperative Period ◽  
Level Of Evidence ◽  
Supraspinatus Tear ◽  
Functional Scores ◽  
Group A ◽  
Vas Scores ◽  
Group B

Background: Although everted bursal flaps of delaminated tears have been reported, few studies have reported radiologic images, arthroscopic findings, and clinical results after repair. Purpose: To compare the repair outcomes of everted delaminated tears with those of classic delaminated supraspinatus tears. Study Design: Cohort study; Level of evidence, 3. Methods: Among 153 patients who underwent arthroscopic rotator cuff repair for a delaminated supraspinatus tear, everted bursal flap tears were observed in 24 patients upon arthroscopy (group A). Another 24 patients with classic delaminated supraspinatus tears, matched for age and sex, were selected for group B. Magnetic resonance imaging (MRI) and ultrasonography were performed preoperatively and postoperatively. Patients were evaluated using a visual analog scale (VAS) for pain as well as functional scores (American Shoulder and Elbow Surgeons [ASES] score, Constant score, and University of California Los Angeles shoulder score). Scores were compared preoperatively and at final follow-up (mean follow-up, 32 months). Results: Patients in both groups A and B reported improved VAS and functional scores at the final follow-up. In group A, preoperative VAS scores were higher and functional scores were poorer than in group B. Subacromial effusions with tendon swelling on preoperative MRI were more common in group A. During follow-up ultrasonography, group A patients exhibited persistent subacromial effusion. However, VAS scores at final follow-up were significantly better in group A (0.4 ± 0.7) than in group B (1.6 ± 1.4) ( P < .001), and ASES scores at final follow-up were better in group A (84.3 ± 4.3) than in group B (77.0 ± 10.2) ( P = .005). Conclusion: Everted bursal flap delaminated tears were associated with higher VAS scores and poorer functional scores preoperatively. Although subacromial effusions were experienced by group A during the early postoperative period, clinical outcomes at final follow-up were significantly better for everted delaminated tears compared with classic delaminated tears.

Arthroscopic Suture-Bridge Repair for Small to Medium Size Supraspinatus Tear: Healing Rate and Retear Pattern

2013 ◽  
Vol 29 (1) ◽  
pp. 10-17 ◽  
Author(s):  
Lionel Neyton ◽  
Arnaud Godenèche ◽  
Laurent Nové-Josserand ◽  
Yannick Carrillon ◽  
Julien Cléchet ◽  
...  
Keyword(s):  
Healing Rate ◽  
Medium Size ◽  
Suture Bridge ◽  
Supraspinatus Tear

scholarly journals Biomechanics in an Incomplete Versus Complete Supraspinatus Tear: A Cadaveric Study

2020 ◽  
Vol 8 (12) ◽  
pp. 232596712096447
Author(s):  
Danil Rybalko ◽  
Aimee Bobko ◽  
Farid Amirouche ◽  
Dmitriy Peresada ◽  
Awais Hussain ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Humeral Head ◽  
Rotator Cuff Tears ◽  
Vertical Position ◽  
Study Objective ◽  
Supraspinatus Tear ◽  
Complete Tear ◽  
Significant Difference ◽  
Static Conditions ◽  
Biomechanical Comparison

Background: Degenerative and traumatic changes to the rotator cuff can result in massive and irreparable rotator cuff tears (RCTs). Purpose/Hypothesis: The study objective was to conduct a biomechanical comparison between a small, incomplete RCT and a large, complete RCT. We hypothesized that the incomplete supraspinatus (SS) tear would lead to an incremental loss of abduction force and preserve vertical position of the humeral head, while a complete SS tear would cause superior humeral migration, decrease functional deltoid abduction force, and increase passive range of motion (ROM). Study Design: Controlled laboratory study. Methods: Six cadaveric shoulders were evaluated using a custom testing apparatus. Each shoulder was subjected to 3 conditions: (1) intact/control, (2) 50%, full-thickness, incomplete SS tear, and (3) 100%, complete SS tear. Deltoid abduction force, superior humeral head migration, and passive ROM were measured in static conditions at 0°, 30°, and 60° of glenohumeral abduction, respectively. Results: The intact SS resulted in a mean deltoid abduction force of 2.5, 3.3, and 3.8 N at 0°, 30°, and 60° of abduction, respectively. Compared with the intact shoulder, there was no significant difference in mean abduction force seen in the incomplete tear, while the force was significantly decreased by 52% at 30° of abduction in the complete tear ( P = .009). Compared with the incomplete tear, there were significant decreases in abduction force seen in the complete tear, by 33% and 48% (0.9 N and 1.1 N) at 0° and 30° of abduction, respectively ( P = .04 and .004). The intact configuration experienced a mean superior humeral head migration of 1.5, 1.4, and 1.1 mm at 0°, 30°, and 60° of abduction, respectively. The complete tear resulted in a superior migration of 3.0 and 4.4 mm greater than the intact configuration at 0° and 30° of abduction, respectively ( P = .001). There was a 5° and 10° increase in abduction ROM with 50% and 100% tears, respectively ( P = .003 and .03). Conclusion: An incomplete SS tear does not significantly alter the biomechanics of the shoulder, while a large, complete SS tear leads to a significant superior humeral migration, a decreased deltoid abduction force, and a mild increase in passive ROM. Clinical Relevance: Our findings demonstrate the effects of large SS tears on key biomechanical parameters, as they progress from partial tears.

Returning to Overuse Activity Following a Combined Supraspinatus and Infraspinatus Tear Leads to Shoulder Joint Damage

2013 ◽  
Author(s):  
Katherine E. Reuther ◽  
Stephen J. Thomas ◽  
Jennica J. Tucker ◽  
Joseph J. Sarver ◽  
Chancellor F. Gray ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Articular Cartilage ◽  
Rotator Cuff ◽  
Joint Damage ◽  
Shoulder Function ◽  
Force Balance ◽  
Rotator Cuff Tears ◽  
Subscapularis Tendon ◽  
Supraspinatus Tear ◽  
Anterior Posterior

Rotator cuff tendon tears are common conditions which can lead to significant pain and dysfunction. Tears may progress over time from isolated supraspinatus tears to complete ruptures of both the supraspinatus and infraspinatus tendons, disrupting the anterior-posterior force balance provided by the subscapularis anteriorly and infraspinatus posteriorly (commonly referred to as a “force couple”) [1]. This disruption may lead to increased joint instability and result in altered glenohumeral translations which may cause damage to joint structures, such as articular cartilage and adjacent (intact) tendons. This is a particular concern for active individuals who are likely to continue high levels of overuse activity (e.g., laborers, athletes), despite the presence of rotator cuff tears. Previous studies have shown that returning to overuse activity following an isolated supraspinatus tear alters biceps and glenoid articular cartilage properties, but does not alter shoulder function or the adjacent intact subscapularis tendon [2]. However, the consequences associated with disrupting the anterior-posterior force balance (supraspinatus and infraspinatus tears) are not understood. Therefore, the objectives of this study were 1) to investigate the effect of returning to overuse activity following tears of both the supraspinatus and infraspinatus tendons on shoulder function and the remaining intact tendon and glenoid cartilage mechanical properties and 2) to begin to define the biologic mechanisms responsible for these changes. We hypothesized that overuse activity following two-tendon rotator cuff tears would H1) alter shoulder function and H2) lead to damage (indicated by inferior mechanical properties and increased production of degenerative factors, extracellular matrix, and cartilage markers) in the remaining intact tendons (including the biceps and upper and lower subscapularis tendons) and in the anterior-superior region of the glenoid articular cartilage as a result of the excessive joint loading due to overuse following the supraspinatus-infraspinatus tear.

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