Biomechanical comparison of double-loaded suture anchors using arthroscopic Mason–Allen Stitches versus traditional transosseous suture technique and modified Mason–Allen stitches for rotator cuff repair

Klinger, Hans-Michael; Steckel, Hanno; Spahn, Günter; Buchhorn, Gottfried; Baums, Mike H.

doi:10.1016/j.clinbiomech.2006.07.009

Cited by 41 publications

(58 citation statements)

References 29 publications

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“…This is lower than the lowest force (50 N) that we found in the literature for failure after cyclic loading of the rotator cuff. [3][4][5]16,24,25,34,35,39,42,45,48 We chose a threshold of 15% of maximum activation for our data interpretation, based on biomechanical calculations. One study using in vitro biomechanical testing of sutured supraspinatus defects indicated a 50% loss of repair at (mean  SD) 206  88 cycles of loading at 44  15 N. 3 A conservative value of 30 N was chosen as an upper limit of safe loading for the limited-repetition activities used in this study.…”

Section: Results Tmentioning

confidence: 99%

Activation of the Shoulder Musculature During Pendulum Exercises and Light Activities

Long¹,

Thiele²,

Skendzel³

et al. 2010

Journal of Orthopaedic & Sports Physical Therapy

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Study Design Prospective, single-group, repeated-measures design. Objectives To evaluate electromyographic (EMG) signal amplitude in the supraspinatus, infraspinatus, and deltoid muscles during pendulum exercises and light activities in a group of healthy subjects. Background There are numerous rehabilitation protocols used after rotator cuff repair. One of the most commonly used exercises in these protocols is the pendulum. Patients can easily perform these exercises incorrectly, and may also perform light activities of daily living without knowing that they may be putting excessive stress on the repair. The effect of improperly performed pendulum exercises and light activities after rotator cuff repair is unknown. Methods Muscle activity was recorded in 13 subjects performing pendulum exercises incorrectly and correctly in both large (51-cm) and small (20-cm) diameters, and while typing, drinking, and brushing their teeth. Results Incorrect and correct large pendulums and drinking elicited more than 15% maximum voluntary isometric contraction in the supraspinatus and infraspinatus. The supraspinatus EMG signal amplitude was greater during large, incorrectly performed pendulums than during those performed correctly. Both correct and incorrect large pendulums resulted in statistically higher muscle activity in the supraspinatus than the small pendulums. Conclusion Larger pendulums may require more force than is desirable early in rehabilitation after rotator cuff repair. J Orthop Sports Phys Ther 2010;40(4):230–237. doi:10.2519/jospt.2010.3095

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Section: Results Tmentioning

confidence: 99%

Activation of the Shoulder Musculature During Pendulum Exercises and Light Activities

Long¹,

Thiele²,

Skendzel³

et al. 2010

Journal of Orthopaedic & Sports Physical Therapy

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“…Large animal shoulder models facilitate accuracy and reproducibility of injury and repair manipulations. 80 Because their size allows for many standard-of-care surgical techniques to be reproduced, large animal models have been used to study various surgical repair techniques at time zero [81][82][83][84][85][86] and after healing. 87,88 It should be appreciated, however, that animal tendons in these models are generally acutely severed and healthy, in contrast to chronically injured and perhaps diseased human rotator cuff tendons.…”

Section: Figmentioning

confidence: 99%

Preclinical Models for Translating Regenerative Medicine Therapies for Rotator Cuff Repair

Derwin

Baker

Iannotti

et al. 2010

Tissue Engineering Part B: Reviews

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Despite improvements in the understanding of rotator cuff pathology and advances in surgical treatment options, repairs of chronic rotator cuff tears often re-tear or fail to heal after surgery. Hence, there is a critical need for new regenerative repair strategies that provide effective mechanical reinforcement of rotator cuff repair as well as stimulate and enhance the patient's intrinsic healing potential. This article will discuss and identify appropriate models for translating regenerative medicine therapies for rotator cuff repair. Animal models are an essential part of the research and development pathway; however, no one animal model reproduces all of the features of the human injury condition. The rat shoulder is considered the most appropriate model to investigate the initial safety, mechanism, and efficacy of biologic treatments aimed to enhance tendon-to-bone repair. Whereas large animal models are considered more appropriate to investigate the surgical methods, safety and efficacy of the mechanical-or combination biologic=mechanical-strategies are ultimately needed for treating human patients. The human cadaver shoulder model, performed using standard-of-care repair techniques, is considered the best for establishing the surgical techniques and mechanical efficacy of various repair strategies at time zero. While preclinical models provide a critical aspect of the translational pathway for engineered tissues, controlled clinical trials and postmarketing surveillance are also needed to define the efficacy, proper indications, and the method of application for each new regenerative medicine strategy.

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“…26,27 Metal implants can cause distortion and artefacts on magnetic resonance imaging. 28 Fixation with absorbable tacks is similar to fixation with metal anchors and transosseus sutures, 29,30 but absorbable sutureless screw anchors in poly-L-lactide acid may not perform adequately under cyclic loading conditions during rehabilitation. 31 Poor outcomes have been reported in patients having absorbable screws, compared to metal suture anchors.…”

Section: Discussionmentioning

confidence: 99%

Arthroscopic Repair of Rotator Cuff Tears Using Absorbable Anchors with a Single-Row Technique

Russo

Cautiero

Giudice

et al. 2010

J Orthop Surg (Hong Kong)

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Purpose. To review outcomes of arthroscopic repair of rotator cuff tears using absorbable anchors with a single-row technique. Methods. 66 patients underwent arthroscopic repair for rotator cuff tears using absorbable anchors with a single-row technique. 51 of them aged 37 to 73 (mean, 57) years had been followed up for a mean of 29 (range, 20-37) months. The extent of the tear was classified as large, medium or small. Functional outcome was assessed using the Constant score. Constant scores and re-tear rates in 3 patient groups (classified by patient age and tear size) were compared. Results. Among the 66 patients, there were 24 large, 29 medium and 13 small cuff tears, and a total of 48, 37, and 18 anchors were used, respectively. Among the 51 patients, the median Constant score improved significantly after arthroscopy (30 vs. 73, p<0.0001

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Biomechanical comparison of double-loaded suture anchors using arthroscopic Mason–Allen Stitches versus traditional transosseous suture technique and modified Mason–Allen stitches for rotator cuff repair

Cited by 41 publications

References 29 publications

Activation of the Shoulder Musculature During Pendulum Exercises and Light Activities

Activation of the Shoulder Musculature During Pendulum Exercises and Light Activities

Preclinical Models for Translating Regenerative Medicine Therapies for Rotator Cuff Repair

Arthroscopic Repair of Rotator Cuff Tears Using Absorbable Anchors with a Single-Row Technique

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