scholarly journals Does the Interval Slide Procedure Reduce Supraspinatus Tendon Repair Tension?: A Biomechanical Cadaveric Study

2022 ◽  
Vol 10 (1) ◽  
pp. 232596712110668
Author(s):  
Felix Porschke ◽  
Philip Christian Nolte ◽  
Christian Knye ◽  
Christel Weiss ◽  
Stefan Studier-Fischer ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Intervention Group ◽  
Tendon Repair ◽  
Supraspinatus Tendon ◽  
Rotator Cuff Tears ◽  
Control Group ◽  
Full Thickness ◽  
Time Points ◽  
Tendon Tears ◽  
And Control

Background: The benefits of the interval slide (IS) procedure in retracted rotator cuff tears remain controversial. Purpose: The purpose was to evaluate the effect of the IS procedure on repair tension (RT). It was hypothesized that the IS procedure (anterior IS [AIS], posterior IS [PIS], and intra-articular capsular release [CR]) would reduce the RT of a supraspinatus tendon. Study Design: Controlled laboratory study. Methods: A total of 31 Thiel-embalmed human cadaveric shoulders (mean age, 74 years; range, 68-84 years) were tested. Full-thickness supraspinatus tendon tears were created, and 1 cm of tendon was resected to simulate a retracted defect. Shoulders were randomized into intervention (n = 16) and control (n = 15) groups. In all shoulders, the load during tendon reduction to footprint was measured, an endpoint was defined as maximum tendon lateralization before 50 N was reached, and the RT (load during lateralization to endpoint) of the native tendon (t1) was evaluated. In the intervention group, AIS (t2), PIS (t3), and CR (t4) were performed in order, with RT measurement after each step. In the control group, RT was assessed at the same time points without the intervention. Results: A complete reduction of the tendon was not achieved in any of the shoulders. Mean maximum lateralization was 6.7 ± 1.30 mm, with no significant differences between groups. In the intervention group, the overall IS procedure reduced RT about 47.0% (t1 vs t4: 38.7 ± 3.9 vs 20.5 ± 12.3 N; P < .001). AIS reduced RT significantly (t1 vs t2: 38.7 ± 3.9 vs 27.4 ± 10.5 N; P < .001), whereas subsequent PIS (t2 vs t3: 27.4 ± 10.5 vs 23.2 ± 12.4 N; P = .27) and CR (t3 vs t4: 23.2 ± 12.4 vs 20.5 ± 12.3 N; P = .655) did not additionally reduce tension. Comparison between groups at t4 revealed a reduction of RT of about 47.8% (control vs intervention: 39.3 ± 4.0 vs 20.5 ± 12.3 N; P < .001). Conclusion: The IS procedure reduces RT of the supraspinatus tendon in human cadaveric shoulders. However, performing PIS and CR subsequent to AIS does not reduce tension additionally. Clinical Relevance: These findings provide surgeons with a biomechanical rationale regarding the efficacy of the IS procedure.

Correlation Between Age and Tendon Strength in Supraspinatus Tendon With Full-Thickness Tears

2013 ◽  
Author(s):  
R. Matthew Miller ◽  
Daisuke Araki ◽  
Yoshimasa Fujimaki ◽  
Volker Musahl ◽  
Richard E. Debski
Keyword(s):  
Rotator Cuff ◽  
Treatment Outcomes ◽  
Clinical Problem ◽  
Supraspinatus Tendon ◽  
Fatty Degeneration ◽  
Rotator Cuff Tears ◽  
Full Thickness ◽  
Insufficient Information ◽  
Poor Treatment ◽  
The Relationship

Degenerative tears of the rotator cuff tendons are a significant clinical problem, with an incidence of more than 30% in asymptomatic persons over the age of 60 [1]. As the population continues to age, the incidence of partial and full-thickness rotator cuff tears continues to increase [2], with previous studies finding that greater age also correlates with worse surgical outcomes and increased fatty degeneration in the tissue [3]. Although the relationship between age, rotator cuff injury, and poor treatment outcomes has been previously established, insufficient information exists on the biological and mechanical changes in the tissue due to aging.

scholarly journals Recombinant Human Bone Morphogenetic Proteins-4 Enhanced the Tendon-to-bone Attachment Healing in a Murine Model of Rotator Cuff Tear: A Randomized Controlled Trial

2020 ◽  
Author(s):  
Huabin Chen ◽  
Zhanwen Wang ◽  
Li Zhou ◽  
Bing Wu ◽  
Hongbin Lu ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Bone Morphogenetic Proteins ◽  
Murine Model ◽  
Controlled Trial ◽  
Supraspinatus Tendon ◽  
Control Group ◽  
Cuff Tear ◽  
Tendon Insertion ◽  
And Control

Abstract Background: Injuries on tendon-to-bone attachment (TBA) are common clinical dilemmas. Bone Morphogenetic Proteins-4 (BMP-4) has been found the potency in chondrogenesis. But there is rare studies focusing the influence of BMP-4 on the TBA healing. Thus, the objective of this study was to explore the effect of BMP-4 on the healing of TBA in murine model of rotator cuff tear.Methods: 120 mature C57BL/6 mice (12 weeks old) were randomly divided into BMP-4 group, noggin (an inhibitor of all BMP activities) group and control group after being established an injury model of supraspinatus tendon insertion. At week 2 and 4 after surgery, the supraspinatus tendon- humerus complex (SSTHC) were harvested for microradiographic, histologic, immunofluorescent and biomechanical evaluations.Results: Radiographic data showed that BMP-4 was able to improve the quality of subchondral bone, manifested as higher BV/TV, Tb.N, TB.Th, and lower Tb.Sp. Histologically, the BMP-4 group at week-2 and -4 showed better BTA healing interface, characterized by better organizational integration and remodeling, thicker fibrocartilage layer and more fibrocartilage cells. Immunoflorescence evaluation demonstrated the number of SOX 9 positive cells in the BMP-4 group was significantly more than that in the control or noggin group at postoperative weeks 2 and 4 (p<0.05 for all). Mechanical testing results demonstrated the failure load and stiffness in the BMP-4 group were significantly higher (p<0.05 for both), while in the noggin group were lower (p<0.05 for both), compared to the control group at postoperative weeks 4.Conclusion: BMP-4 might enhance the TBA healing by promoting the regeneration of fibrocartilaginous enthesis and mineralization, while noggin inhibited this process.Clinical Relevance: BMP-4 may be a potential therapy to augment TBA healing, and finally lead to more rapid rehabilitation and reduce risk of recurrent repair.

scholarly journals Sonographic and MRI Presentation of Geyser Sign in Rotator Cuff Tears

2021 ◽  
Vol 0 ◽  
pp. 1-3
Author(s):  
Amandeep Singh ◽  
Aaina Devgan ◽  
Jasmin Khatana ◽  
Gauravdeep Singh
Keyword(s):  
Rotator Cuff ◽  
Ganglion Cyst ◽  
Incidental Finding ◽  
Supraspinatus Tendon ◽  
Rotator Cuff Tears ◽  
Left Shoulder ◽  
Full Thickness ◽  
Ac Joint ◽  
Benign Process

Limited cases of rotator cuff tears with acromioclavicular (AC) degeneration in association with cystic swelling or ganglion cyst have been described till date. The “geyser radiographic sign” was originally described by Craig in 1984. Its significance was to document a tear in the articular capsule of the AC joint in the setting of a chronic full-thickness tear of the rotator cuff, which gave the appearance of a geyser arising from the subacromial bursa as radiographic contrast tracked through the AC joint to project superiorly from the shoulder. An 82-year-old male presented with pain on rest in the left shoulder and with difficulty in overhead abduction from last few months. MRI showed near complete full-thickness tear of supraspinatus tendon with retraction of the tendon and reduced bulk of the supraspinatus muscle with associated superior subluxation of humerus with AC arthropathic changes causing ganglion cyst and incidental finding of superior labrum anterior and posterior tear. AC cysts are further divided into Type 1 and Type 2. Repeated aspirations of these masses are not advised, as they often recur and repeated attempts at aspiration may lead to formation of a draining fistula. MRI geyser sign is highly suggestive of a benign process, which suggests underlying rotator cuff pathology.

Preoperative Radiographic Risk Factors for Incomplete Arthroscopic Supraspinatus Tendon Repair in Massive Rotator Cuff Tears

2018 ◽  
Vol 34 (4) ◽  
pp. 1121-1127 ◽  
Author(s):  
Andrew J. Sheean ◽  
Robert U. Hartzler ◽  
Patrick J. Denard ◽  
Alexandre Lädermann ◽  
Timothy G. Sanders ◽  
...  
Keyword(s):  
Risk Factors ◽  
Rotator Cuff ◽  
Tendon Repair ◽  
Supraspinatus Tendon ◽  
Rotator Cuff Tears ◽  
Massive Rotator Cuff Tears

scholarly journals Diagnostic Accuracy of Ultrasonography for Rotator Cuff Tears: A Systematic Review and Meta-analysis

2021 ◽  
Vol 9 (10) ◽  
pp. 232596712110351
Author(s):  
Ali S. Farooqi ◽  
Alexander Lee ◽  
David Novikov ◽  
Ann Marie Kelly ◽  
Xinning Li ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Diagnostic Accuracy ◽  
Biceps Tendon ◽  
Meta Analysis ◽  
Rotator Cuff Tears ◽  
Full Thickness ◽  
Partial Thickness ◽  
Diagnostic Values ◽  
Tendon Tears ◽  
Sensitivity Specificity

Background: With recent improvements in transducer strength, image resolution, and operator training, ultrasound (US) provides an excellent alternative imaging modality for the diagnosis of rotator cuff tears. Purpose: To evaluate the diagnostic accuracy of US for partial- and full-thickness rotator cuff tears and biceps tendon tears, compare diagnostic values with those of magnetic resonance imaging (MRI) using arthroscopy as the reference standard, assess longitudinal improvements in accuracy, and compare diagnostic values from operators with different training backgrounds. Study Design: Systematic review; Level of evidence, 3. Methods: The PubMed and Cochrane Library databases were systematically searched for full-text journal articles published between January 1, 2010, and April 1, 2020. The inclusion criteria were studies that evaluated the diagnostic accuracy of US for rotator cuff tears or biceps tendon tears utilizing arthroscopy as the reference standard. The exclusion criteria were studies with <10 patients, studies including massive tears without reporting diagnostic data for specific tendons, and studies lacking diagnostic outcome data. Extracted outcomes included diagnostic accuracy, sensitivity, specificity, negative predictive value, and positive predictive value. The mean difference and 95% confidence interval were calculated for both US and MRI diagnostic values, and meta-analysis was conducted using the Mantel-Haenszel random-effects model. Results: In total, 23 eligible studies involving 2054 shoulders were included. US demonstrated a higher median diagnostic accuracy for supraspinatus tendon tears (0.83) and biceps tendon tears (0.93) as compared with subscapularis tendon tears (0.76). US was found to have a higher median accuracy (0.93) for full-thickness supraspinatus tears than partial-thickness tears (0.81). US had superior median sensitivity for partial-thickness supraspinatus tears when performed by radiologists as opposed to surgeons (0.86 vs 0.57). Meta-analysis of the 5 studies comparing US and MRI demonstrated no statistically significant difference in diagnostic sensitivity, specificity, or accuracy for any thickness supraspinatus tears (P = .31-.55), full-thickness tears (P = .63-.97), or partial-thickness tears ( P = .13-.81). Conclusion: For experienced operators, US is a highly sensitive and specific diagnostic modality for the diagnosis of supraspinatus tears and demonstrates statistically equivalent capability to MRI in the diagnosis of both full- and partial-thickness rotator cuff tears.

scholarly journals Quantitative Ultrasonographic Analysis of Changes of the Suprascapular Nerve in the Aging Population With Shoulder Pain

2021 ◽  
Vol 9 ◽  
Author(s):  
Wei-Ting Wu ◽  
Lan-Rong Chen ◽  
Hsiang-Chi Chang ◽  
Ke-Vin Chang ◽  
Levent Özçakar
Keyword(s):  
Rotator Cuff ◽  
Older People ◽  
Brachial Plexus ◽  
Shoulder Pain ◽  
Supraspinatus Tendon ◽  
Suprascapular Nerve ◽  
Control Group ◽  
Full Thickness ◽  
Cross Sectional ◽  
Rotator Cuff Lesions

BackgroundOlder people are vulnerable to painful shoulder syndromes, the majority of which are derived from degenerative rotator cuff pathologies. The suprascapular nerve (SSN) is closely related to the rotator cuff complex, and its role in shoulder pain has recently been highlighted. This study aimed to explore the differences in SSN among older people with and without shoulder pain, and to investigate the potential factors influencing the nerve size using ultrasound (US) imaging.MethodsParticipants aged ≥60 years were enrolled in the study. A systematic and bilateral US examination of the rotator cuff tendons was performed. The SSN was examined from its origin in the brachial plexus to the spinoglenoid notch of the infraspinatus fossa. The association between the nerve’s cross-sectional area (CSA) and rotator cuff lesions was analyzed using the generalized estimation equation.ResultsAmong the 94 participants, 45 (with bilaterally asymptomatic shoulders) were classified into the control group, whereas 49 (with at least one-sided shoulder pain) were classified into the group with shoulder pain. The average CSAs of the SSN at the level of the brachial plexus, supraspinatus fossa, and infraspinatus fossa were comparable between the patients in the control group and those with shoulder pain. There was a higher prevalence of rotator cuff lesions and enlarged distal SSNs in the painful shoulders than in the asymptomatic shoulders of patients with unilateral involvement. A full-thickness tear of the supraspinatus tendon was associated with swelling of the SSN in the supraspinatus fossa (β coefficient = 4.068 mm2, p &lt; 0.001).ConclusionIn the older population, full-thickness tears of the supraspinatus tendon are independently associated with enlargement of the distal SSN. In cases with large rotator cuff tendon tears with poor response to conservative treatments, possible SSN entrapment should be considered and managed accordingly.

scholarly journals Gene Expression in Torn Rotator Cuff Tendons Determined by RNA Sequencing

2020 ◽  
Vol 8 (6) ◽  
pp. 232596712092748
Author(s):  
Robert Z. Tashjian ◽  
Ian Lock ◽  
Erin K. Granger ◽  
Yangliang Wang ◽  
Younghee Lee ◽  
...  
Keyword(s):  
Gene Expression ◽  
Endothelial Cell ◽  
Rotator Cuff ◽  
Target Genes ◽  
Secondary Analysis ◽  
Supraspinatus Tendon ◽  
Rotator Cuff Tears ◽  
Rotator Cuff Disease ◽  
Differential Gene ◽  
And Control

Background: Although the cause of rotator cuff tearing is likely multifactorial and a genetic predisposition has been proposed, the biochemical basis remains unknown. Purpose: To determine gene expression profiles in torn rotator cuff tendon tissue through use of RNA sequencing. Study Design: Controlled laboratory study. Methods: The supraspinatus tendon edge was biopsied in 24 patients undergoing arthroscopic rotator cuff repair for full-thickness supraspinatus rotator cuff tears. The supraspinatus tendon was also biopsied in 9 patients undergoing open reduction and internal fixation for a proximal humeral fracture (controls). Total RNA was extracted and sequenced. Differential gene expression was analyzed between the tear and control groups, and a secondary analysis was conducted between groups defined by an unbiased clustering. Results: Tear and control transcriptomes demonstrated significant differential expression in more than 3000 genes. The identified differential genes were highlighted in pathways involved in inflammation in control patients and extracellular matrix generation in patients with tears. Secondary analysis using unsupervised and thus unbiased hierarchical clustering revealed 2 clusters (c2 and c3). Cluster c3 contained smaller ( P < .001) and less retracted ( P = .018) tears (ie, tears earlier in the progression of rotator cuff disease) with increased expression of hypoxia target genes. Cluster c2 contained larger, more retracted tears (ie, tears further in the progression of rotator cuff disease) with increased expression of endothelial cell markers and chronic inflammation target genes. Tears in c2 had significantly worse healing rates compared with tears in c3 (0% vs 89%; P = .007). Conclusion: Smaller, less retracted tears had increased expression of hypoxia target genes and improved healing, whereas larger, more retracted tears were associated with endothelial cell markers and worse healing. Thus, hypoxia may be the inciting event for tear development, whereas with tear enlargement, a chronic, inflammatory, angiogenic process may predominate. Clinical Relevance: Identification of differential gene expression in rotator cuff tears may be a reliable tool to predict repair healing in the future.

scholarly journals Can a simple fall cause a rotator cuff tear? Literature review and biomechanical considerations

2021 ◽  
Author(s):  
Richard W. Nyffeler ◽  
Nicholas Schenk ◽  
Philipp Bissig
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Supraspinatus Tendon ◽  
Rotator Cuff Tears ◽  
Minor Trauma ◽  
Inclusion Criteria ◽  
Tendon Tear ◽  
Cuff Tear ◽  
Tendon Ruptures ◽  
Tendon Tears

Abstract Purpose A simple fall on the shoulder is often referred to as minor trauma that cannot cause a tendon tear but at best reveal a pre-existing rotator cuff pathology. We wanted to know whether this statement was true. The purpose of our study was therefore to summarize the causes of acute rotator cuff tears reported in the literature and provide a biomechanical explanation for tendon tears diagnosed after a fall. Method We searched PubMed and included studies reporting rotator cuff tears occurring due to a trauma. The number of cases, the tendons involved, the age of the patients, and the nature of trauma were summarized. In addition, we noted any information provided by the authors on the pathogenesis of acute tendon ruptures. Results Sixty-seven articles with a total of 4061 traumatic rotator cuff tears met the inclusion criteria. A simple fall was the most common cause (725 cases) and the supraspinatus tendon was most frequently affected. The postulated pathomechanism is a sudden stretch of the tendon-muscle unit while contracting (eccentric loading). Conclusion A simple fall can cause an acute rotator cuff tear and fall-related tears are not restricted to young individuals. They can affect patients of any age. The stresses occurring within the rotator cuff during an attempt to cushion a fall may locally exceed the tensile strength of the tendon fibers and cause a partial or full-thickness tear.

scholarly journals Minimum Five-Year Outcomes and Clinical Survivorship Following Arthroscopic Double-Row Repair for Full-thickness Supraspinatus Tears

2018 ◽  
Vol 6 (7_suppl4) ◽  
pp. 2325967118S0007
Author(s):  
Jonas Pogorzelski ◽  
Erik M. Fritz ◽  
Marilee P. Horan ◽  
Zaamin B. Hussain ◽  
Christoph Katthagen ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Supraspinatus Tendon ◽  
Rotator Cuff Tears ◽  
Full Thickness ◽  
Double Row ◽  
Survivorship Analysis ◽  
Double Row Repair ◽  
Cuff Repair

Objectives: Rotator cuff tears lead to significant morbidity due to pain and decreased function. Despite the prevalence of cuff repairs, mid-term outcomes have been scarcely reported. The purpose of this study is to report minimum 5-year outcomes and clinical survivorship after double-row rotator cuff repair for full-thickness supraspinatus tendon tears. Methods: Patients at least five years out from arthroscopic double-row repair for a full-thickness cuff tear involving the supraspinatus tendon were included. Pre- and postoperative ASES, SF-12 PCS, QuickDASH, SANE, and satisfaction scores were collected. The relationship between outcomes and (1) tear chronicity, (2) number of tendons involved, (3) type of repair, and (4) primary versus revision procedure, was also evaluated. Kaplan-Meier survivorship analysis was conducted defining failures as progression to revision rotator cuff surgery. Results: From November 2005 to February 2012, a total of 189 shoulders were eligible for inclusion. Fifteen shoulders (7.9%) underwent revision rotator cuff repair and were considered failures. Outcomes data were reported at a mean follow-up of 6.6 (range, 5.0-11.0) years. All outcome scores significantly improved from pre- to postoperative time point, including mean ASES (57.9 to 92.9, P < 0.001), SF-12 PCS (43.4 to 52.0, P < 0.001), QuickDASH (35.2 to 10.5, P < 0.001), and SANE scores (61.5 to 86.5, P < 0.001). Acute tears demonstrated significantly better ASES and SANE scores than chronic tears (ASES 95.1 ± 8.9 versus 91.7 ± 11.2, P = 0.025; SANE 89.6 ± 19.9 versus 85.7 ± 21.3, P = 0.042). No other analyzed variable had a significant association with outcomes scores ( P > 0.05). Survivorship analysis demonstrated a postoperative clinical survivorship of the repair of 96.5% at two years and 93.8% at five years (Figure 1). Conclusion: Patients can expect excellent clinical outcomes and a low failure rate following arthroscopic double-row repair of full-thickness supraspinatus tears at mid-term follow-up. The repair of acute tears and primary repairs were associated with better postoperative outcomes.

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