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Rotator cuff augmentation

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https://www.readbyqxmd.com/read/28990575/a-systematic-review-of-the-concept-and-clinical-applications-of-bone-marrow-aspirate-concentrate-in-tendon-pathology
#1
Mohamed A Imam, James Holton, Saman Horriat, Ahmed S Negida, Florian Grubhofer, Rohit Gupta, Ali Narvani, Martyn Snow
Tendon pathologies are a group of musculoskeletal conditions frequently seen in clinical practice. They can be broadly classified into traumatic, degenerative and overuse-related tendinopathies. Rotator cuff tears, Achilles tendinopathy and tennis elbow are common examples of these conditions. Conventional treatments have shown inconsistent outcomes and might fail to provide satisfactory clinical improvement. With the growing trend towards the use of mesenchymal stem cells (MSCs) in other branches of medicine, there is an increasing interest in treating tendon pathologies using the bone marrow MSC...
2017: SICOT-J
https://www.readbyqxmd.com/read/28970995/rotator-cuff-tears-at-the-musculotendinous-junction-classification-and-surgical-options-for-repair-and-reconstruction
#2
Peter J Millett, Zaamin B Hussain, Erik M Fritz, Ryan J Warth, J Christoph Katthagen, Jonas Pogorzelski
Although uncommon, rotator cuff tears that occur medially at the musculotendinous junction can result from acute trauma, anatomic force imbalance, or medial row cuff failure following a previous rotator cuff repair. The quality of the torn muscle and tendon along with the length of the remnant tendon stump should be considered before deciding on the most appropriate repair technique. When muscle and tendon quality are sufficient, the tear can often be repaired directly to the remnant tendon stump and compressed onto the greater tuberosity...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28970994/arthroscopic-revision-of-medial-rotator-cuff-failure-augmented-with-a-bioabsorbable-patch
#3
Eduard Buess, Michael Hackl, Peter Buxbaumer
When revising failed double-row and suture-bridge rotator cuff repairs medial failures represent a potential feature. In the presence of a compromised healing environment, patch augmentation becomes a logical adjunct from a mechanical and biological point of view. A reproducible step-by-step revision technique is described that reinforces the weak central cuff area with an absorbable synthetic scaffold.
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28949253/application-of-a-demineralized-cortical-bone-matrix-and-bone-marrow-derived-mesenchymal-stem-cells-in-a-model-of-chronic-rotator-cuff-degeneration
#4
Tanujan Thangarajah, Anita Sanghani-Kerai, Frederick Henshaw, Simon M Lambert, Catherine J Pendegrass, Gordon W Blunn
BACKGROUND: The success of rotator cuff repair is primarily dependent on tendon-bone healing. Failure is common because weak scar tissue replaces the native enthesis, rendering it prone to reruptures. A demineralized bone matrix (DBM) consists of a network of collagen fibers that provide a sustained release of growth factors such as bone morphogenetic proteins. Previous studies have demonstrated that it can regenerate a fibrocartilaginous enthesis. HYPOTHESIS: The use of a DBM and mesenchymal stem cells (MSCs) at the healing enthesis will result in a higher bone mineral density at the tendon insertion and will enhance the regeneration of a morphologically superior enthesis when compared with an acellular human dermal matrix...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28932752/local-rhbmp-12-on-an-absorbable-collagen-sponge-as-an-adjuvant-therapy-for-rotator-cuff-repair-a-phase-1-randomized-standard-of-care-control-multicenter-study-part-2-a-pilot-study-of-functional-recovery-and-structural-outcomes
#5
Junji Ide, Yu Mochizuki, Arthur van Noort, Hiroshi Ochi, Sudhakar Sridharan, Eiji Itoi, Stefan Greiner
BACKGROUND: The high failure rate of rotator cuff repairs requires the development of methods to enhance healing at the tendon-bone junction of the repair site. PURPOSE: To assess functional recovery and structural outcomes in detail after implanting recombinant human bone morphogenetic protein-12 (rhBMP-12)/absorbable collagen sponge (ACS) as adjuvant treatment during open rotator cuff repair in patients over a 1-year postoperative follow-up. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28905242/poly-n-acetyl-glucosamine-snag-enhances-early-rotator-cuff-tendon-healing-in-a-rat-model
#6
C A Nuss, J Huegel, J F Boorman-Padgett, D S Choi, S N Weiss, J Vournakis, L J Soslowsky
Rotator cuff injuries frequently require surgical repairs which have a high failure rate. Biological augmentation has been utilized in an attempt to improve tendon repair. Poly-N-acetyl glucosamine (sNAG) polymer containing nanofibers has been shown to increase the rate for healing of venous leg ulcers. The purpose of this study was to investigate the healing and analgesic properties of sNAG in a rat rotator cuff injury and repair model. 144 adult male Sprague-Dawley rats underwent a transection and repair of their left supraspinatus tendons...
September 13, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28822637/porcine-dermis-patch-augmentation-of-supraspinatus-tendon-repairs-a-pilot-study-assessing-tendon-integrity-and-shoulder-function-2%C3%A2-years-after-arthroscopic-repair-in-patients-aged-60%C3%A2-years-or%C3%A2-older
#7
Matthias Flury, Dominik Rickenbacher, Christian Jung, Marco M Schneider, David Endell, Laurent Audigé
PURPOSE: To investigate the 2-year postoperative clinical and subjective outcomes after arthroscopic rotator cuff repair (ARCR) with xenologous porcine dermal patch augmentation compared with ARCR alone. METHODS: Patients aged 60 years or older with a complete supraspinatus (SSP) tendon tear underwent primary ARCR with a transosseous-equivalent technique. By use of a matched-pair comparative trial design, a consecutive series of 20 patients receiving additional xenologous porcine dermal patch augmentation (patch group) was matched by tear location with 20 patients who received ARCR only (control group)...
August 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28820278/does-additional-biceps-augmentation-improve-rotator-cuff-healing-and-clinical-outcomes-in-anterior-l-shaped-rotator-cuff-tears-clinical-comparisons-with-arthroscopic-partial-repair
#8
Yoon Sang Jeon, Juyeob Lee, Rag Gyu Kim, Young-Won Ko, Sang-Jin Shin
BACKGROUND: The repair of anterior L-shaped tears is usually difficult because of the lack of anterior rotator cuff tendon to cover the footprint. The biceps tendon is usually exposed from the retracted anterolateral corner of the torn tendon and can be easily used to augment rotator cuff repair. Hypothesis/Purpose: This study compared the clinical outcomes of the biceps augmentation technique with those of partial tendon repair for the arthroscopic treatment of large anterior L-shaped rotator cuff tears to evaluate the role of additional biceps augmentation in tendon healing...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28816097/-meltblown-polymer-fabrics-as-candidate-scaffolds-for-rotator-cuff-tendon-tissue-engineering
#9
Thomas L Jenkins, Sean Meehan, Behnam Pourdeyhimi, Dianne Little
Various biomaterial technologies are promising for tissue engineering, including electrospinning, but commercial scale-up of throughput is difficult. The goal of the study was to evaluate meltblown fabrics as candidate scaffolds for rotator cuff tendon tissue engineering. Meltblown poly(lactic acid) fabrics were produced with several polymer crystallinities and airflow velocities [500(low), 900(medium) or 1400(high) m(3)air/h/m fabric]. Fiber diameter, alignment, and baseline bidirectional tensile mechanical properties were evaluated...
September 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28736687/tissue-engineered-tendon-for-enthesis-regeneration-in-a-rat-rotator-cuff-model
#10
Michael J Smietana, Pablo Moncada-Larrotiz, Ellen M Arruda, Asheesh Bedi, Lisa M Larkin
Healing of rotator cuff (RC) injuries with current suture or augmented scaffold techniques fails to regenerate the enthesis and instead forms a weaker fibrovascular scar that is prone to subsequent failure. Regeneration of the enthesis is the key to improving clinical outcomes for RC injuries. We hypothesized that the utilization of our tissue-engineered tendon to repair either an acute or a chronic full-thickness supraspinatus tear would regenerate a functional enthesis and return the biomechanics of the tendon back to that found in native tissue...
2017: BioResearch Open Access
https://www.readbyqxmd.com/read/28706817/the-pull-over-technique-for-all-arthroscopic-rotator-cuff-repair-with-extracellular-matrix%C3%A2-augmentation
#11
A Ali Narvani, Mohamed A Imam, Ioannis Polyzois, Tanaya Sarkhel, Rohit Gupta, Ofer Levy, Paolo Consigliere
Despite the vast improvement in techniques for arthroscopic rotator cuff surgery, repairs of massive and large tears remain an issue as they are associated with significantly high failure rates, particularly in the elderly population. As a result, there has been a focus of attention to improve rotator cuff repair healing rates. One of the strategies is augmentation of the repair with a patch. Arthroscopic augmentation is, however, technically demanding with challenges in introduction and stabilization of the patch...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28699149/is-the-clavicula-pro-humero-technique-of-value-for-reconstruction-after-resection-of-the-proximal-humerus-in-children
#12
Dominique Barbier, Benoît De Billy, Philippe Gicquel, Sophie Bourelle, Pierre Journeau
BACKGROUND: There are several options for reconstruction of proximal humerus resections after wide resection for malignant tumors in children. The clavicula pro humero technique is a biologic option that has been used in the past, but there are only scant case reports and small series that comment on the results of the procedure. Because the longevity of children mandates a reconstruction with potential longevity not likely to be achieved by other techniques, the clavicula pro humero technique may be a potential option in selected patients...
July 11, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28670360/pain-and-the-pathogenesis-of-biceps-tendinopathy
#13
REVIEW
Elise B Raney, Finosh G Thankam, Matthew F Dilisio, Devendra K Agrawal
Biceps tendinopathy is a relatively common ailment that typically presents as pain, tenderness, and weakness in the tendon of the long head of the biceps brachii. Though it is often associated with degenerative processes of the rotator cuff and the joint, this is not always the case, thus, the etiology remains considerably unknown. There has been recent interest in elucidating the pathogenesis of tendinopathy, since it can be an agent of chronic pain, and is difficult to manage. The purpose of this article is to critically evaluate relevant published research that reflects the current understanding of pain and how it relates to biceps tendinopathy...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28647842/excellent-healing-rates-and-patient-satisfaction-after-arthroscopic-repair-of-medium-to-large-rotator-cuff-tears-with-a-single-row-technique-augmented-with-bone-marrow-vents
#14
Brian D Dierckman, Jake J Ni, Ronald P Karzel, Mark H Getelman
PURPOSE: This study evaluated the repair integrity and patient clinical outcomes following arthroscopic rotator cuff repair of medium to large rotator cuff tears using a single-row technique consisting of medially based, triple-loaded anchors augmented with bone marrow vents in the rotator cuff footprint lateral to the repair. METHODS: This is a retrospective study of 52 patients (53 shoulders) comprising 36 males and 16 females with a median age of 62 (range 44-82) with more than 24-month follow-up, tears between 2 and 4 cm in the anterior-posterior dimension and utilizing triple-loaded anchors...
June 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28633121/biomaterials-based-strategies-for-rotator-cuff-repair
#15
REVIEW
Song Zhao, Wei Su, Vishva Shah, Divia Hobson, Lara Yildirimer, Kelvin W K Yeung, Jinzhong Zhao, Wenguo Cui, Xin Zhao
Tearing of the rotator cuff commonly occurs as among one of the most frequently experienced tendon disorders. While treatment typically involves surgical repair, failure rates to achieve or sustain healing range from 20 to 90%. The insufficient capacity to recover damaged tendon to heal to the bone, especially at the enthesis, is primarily responsible for the failure rates reported. Various types of biomaterials with special structures have been developed to improve tendon-bone healing and tendon regeneration, and have received considerable attention for replacement, reconstruction, or reinforcement of tendon defects...
September 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28580245/arthroscopic-rotator-cuff-augmentation-surgical-technique-using-bovine-collagen-bioinductive-implant
#16
Richard Washburn, Taylor M Anderson, John M Tokish
Symptomatic partial-thickness rotator cuff tears and full-thickness tears with poor tissue quality often pose a dilemma for orthopaedic surgeons. Despite advances in repair techniques and fixation devices, retear rates remain high. Progression of partial-thickness tears has been noted to be over 50%, with remaining fibers seeing increased strain. Patch augmentation that induces a healing response while decreasing peak strain of adjacent tissue is becoming more popular among orthopaedic surgeons. Therefore, we present an all-arthroscopic technique guide for application of a Food and Drug Administration-approved bovine bioinductive patch (Rotation Medical, Plymouth, MN)...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28560141/the-pull-over-technique-for-arthroscopic-superior-capsular-reconstruction
#17
A Ali Narvani, Paolo Consigliere, Ioannis Polyzois, Tanaya Sarkhel, Rohit Gupta, Ofer Levy
The management of irreparable rotator cuff tears is a difficult problem to deal with. The options include nonoperative route with anterior deltoid exercises, debridement with or without long head of biceps tenotomy, partial rotator cuff repair, tuberoplasty, muscle transfer, patch augmentation, biodegradable spacers, and reverse shoulder arthroplasty. None of these options are without their limitations. In recent years, arthroscopic superior capsular reconstruction has gained popularity as an alternative technique to address irreparable rotator cuff tears...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28509830/using-small-intestine-submucosa-to-augment-repair-of-moderate-to-large-rotator-cuff-tears-did-not-reduce-repair-failures
#18
Seth Gamradt
No abstract text is available yet for this article.
May 17, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28460192/proton-density-fat-fraction-of-rotator-cuff-muscles-is-associated-with-isometric-strength-10-years-after-rotator-cuff-repair-a-quantitative-magnetic-resonance-imaging-study-of-the-shoulder
#19
Dimitrios C Karampinos, Christian Holwein, Stefan Buchmann, Thomas Baum, Stefan Ruschke, Alexandra S Gersing, Reto Sutter, Andreas B Imhoff, Ernst J Rummeny, Pia M Jungmann
BACKGROUND: Quantitative muscle fat-fraction magnetic resonance (MR) imaging techniques correlate with semiquantitative Goutallier scores with failure after rotator cuff (RC) repair. PURPOSE: To investigate the relationship of proton density fat fraction (PDFF) of the RC muscles with semiquantitative MR scores, cartilage T2 relaxation times, and clinical isometric strength measurements in patients 10 years after unilateral RC repair. STUDY DESIGN: Cross-sectional study; Level of evidence, 3...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28448728/does-an-injection-of-adipose-derived-mesenchymal-stem-cells-loaded-in-fibrin-glue-influence-rotator-cuff-repair-outcomes-a-clinical-and-magnetic-resonance-imaging-study
#20
Yong Sang Kim, Chang Hun Sung, Sung Hoon Chung, Sang Joon Kwak, Yong Gon Koh
BACKGROUND: The mesenchymal stem cell (MSC)-based tissue engineering approach has been developed to improve the treatment of rotator cuff tears. Hypothesis/Purpose: The purpose was to determine the effect of an injection of adipose-derived MSCs loaded in fibrin glue during arthroscopic rotator cuff repair on clinical outcomes and to evaluate its effect on structural integrity using magnetic resonance imaging (MRI). The hypothesis was that the application of adipose-derived MSCs would improve outcomes after the surgical repair of a rotator cuff tear...
July 2017: American Journal of Sports Medicine
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