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Bicep tendon

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https://www.readbyqxmd.com/read/30099597/location-of-reference-electrode-does-not-interfere-on-electromyographic-parameters-in-the-domains-of-time-and-frequency
#1
Rinaldo Roberto de Jesus Guirro, Alcimar Barbosa Soares, Amanda Caldeira Guirro, Camila Simieli, Alessandra Vairo Peres Boratino, Gabriela de Carvalho, Aline Gobbi, Elaine Caldeira de Oliveira Guirro
There is currently little information on the positioning of reference electrode (RE). It is generally accepted that it must be positioned on electrically neutral tissues, such as tendons or bony prominences. The objective of this study is to analyze the characteristics of the electromyographic signal (EMG) for different positions of RE as well as at different levels of muscle contraction. Signals from the brachial biceps and triceps were recorded from 18 healthy women (BMI: 21.20 kg/m2  ± 1.72; mean age: 21...
August 11, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/30094139/using-the-long-head-of-biceps-tendon-autograft-as-an-anatomical-reconstruction-of-the-rotator-cable-an-arthroscopic-technique-for-patients-with-massive-rotator-cuff-tears
#2
Egbert J D Veen, Cornelis T Koorevaar, Ronald L Diercks
The treatment of massive rotator cuff tears (MRCT) is challenging. Insufficient tissue quality, size, and retraction of the cuff often lead to failures of repair. Different techniques like direct repair, partial repair, and graft applications have been developed, but results are not yet predictable. In this arthroscopic technique the objective is not to reconstruct the rotator cuff as a tissue layer but to restore the biomechanical function of the rotator cable with an autograft of the long head of the biceps tendon...
July 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/30090828/clinical-evaluation-of-an-arthroscopic-knotless-suprapectoral-biceps-tenodesis-technique-loop-n-tack-tenodesis
#3
Robert A Duerr, Darin Nye, James M Paci, Sam Akhavan
Background: Pathology of the long head of the biceps tendon is a well-known cause of shoulder pain that is commonly managed with arthroscopic suprapectoral biceps tenodesis when conservative treatment fails. Purpose: To present an arthroscopic knotless suprapectoral biceps tenodesis technique known as "Loop 'n' Tack" tenodesis and to report the clinical outcomes of patients with a minimum 2 years of follow-up. Study Design: Case series; Level of evidence, 4...
June 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/30078688/repair-integrity-and-functional-outcomes-after-arthroscopic-suture-bridge-subscapularis-tendon-repair
#4
Kazuhiro Shibayama, Hiroyuki Sugaya, Keisuke Matsuki, Norimasa Takahashi, Morihito Tokai, Kazutomo Onishi, Sakae Tanaka
PURPOSE: This retrospective study aimed to report repair integrity and clinical outcomes after arthroscopic suture bridge subscapularis (SSC) tendon repair. METHODS: The subjects included 101 shoulders subjected to arthroscopic suture bridge repair for full-thickness SSC tear with a minimum of a 2-year follow-up. There were 57 men and 44 women with a mean age of 66 years (range, 32-85 years). The mean follow-up was 30 months (range, 24-71 months). Tenotomy or tenodesis was performed for the long head of the biceps in all cases...
August 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/30078687/anterior-cable-reconstruction-using-the-proximal-biceps-tendon-for-large-rotator-cuff-defects-limits-superior-migration-and-subacromial-contact-without-inhibiting-range-of-motion-a-biomechanical-analysis
#5
Maxwell C Park, Yasuo Itami, Charles C Lin, Adam Kantor, Michelle H McGarry, Chong J Park, Thay Q Lee
PURPOSE: To assess an anterior cable reconstruction (ACR) using autologous proximal biceps tendon for large to massive rotator cuff tears. METHODS: Nine cadaveric shoulders (mean age, 58 years) were tested with a custom testing system. Range of motion, superior translation of the humeral head, and subacromial contact pressure were measured at 0°, 30°, 60°, and 90° of external rotation (ER) with 0°, 20°, and 40° of glenohumeral abduction. Five conditions were tested: intact, stage II tear (supraspinatus), stage II tear + ACR, stage III tear (supraspinatus + anterior half of infraspinatus), and stage III tear + ACR...
August 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/30075041/snapping-biceps-femoris-tendon
#6
Justin J Ernat, Joseph W Galvin
A 23-year-old male active duty soldier presented with a biceps femoris tendon snapping over the fibular head with flexion of the knee beyond 90°. Surgical release of anomalous anterolateral tibial and lateral fibular insertions provided relief of snapping with no other repair or reconstruction required. The soldier quickly returned to full running and active duty. Snapping biceps femoris tendon is a rare but potential cause of pain and dysfunction in the lateral knee. The possible anatomical variations and the cause of snapping must be considered when determining the operative approaches to this condition...
July 2018: American Journal of Orthopedics
https://www.readbyqxmd.com/read/30046626/isolated-tearing-and-avulsion-of-the-distal-biceps-femoris-tendon-during-sporting-activities-a-systematic-review
#7
REVIEW
Derrick M Knapik, Kathryn B Metcalf, James E Voos
Background: Isolated tearing and avulsions of the distal biceps femoris sustained during sporting activities are uncommon. Purpose: To systematically review the literature to identify distal biceps femoris tears and avulsions experienced during sporting activities to determine injury prevalence, sporting activities/mechanisms, management, and time to return to sport. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was conducted investigating studies published between January 1970 and December 2017 that reported on athletes sustaining tears and avulsions of the distal biceps femoris during sporting activity...
July 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/30043546/computed-tomographic-arthrography-is-a-useful-adjunct-to-survey-computed-tomography-and-arthroscopic-evaluation-of-the-canine-shoulder-joint
#8
Caroline R Eivers, Nuria Corzo-Menéndez, Sarah H Austwick, David G Thomson, Sarah M Gibson, Ian Handel, Tobias Schwarz
The aim of this retrospective, methods comparison study was to assess the diagnostic utility of computed tomographic arthrography in the assessment of various intraarticular shoulder pathologies in dogs in comparison with survey computed tomography (CT), using arthroscopic examination as the reference standard. Computed tomography, computed tomographic arthrography, and arthroscopic findings of 46 scapulohumeral joints of dogs with forelimb lameness were reviewed retrospectively. Predefined sites were assessed for the presence or absence of disease...
July 24, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/30040056/mri-predictors-of-posterolateral-corner-instability-a-decision-tree-analysis-of-patients-with-acute-anterior-cruciate-ligament-tear
#9
Lukas Filli, Andrea B Rosskopf, Reto Sutter, Sandro F Fucentese, Christian W A Pfirrmann
Purpose To determine the diagnostic performance of MRI for helping to predict posterolateral knee instability in patients with acute anterior cruciate ligament (ACL) tear. Materials and Methods This retrospective cohort study was performed in a consecutive series of 162 patients (mean age, 32.8 years ± 10.0 [standard deviation]; 95 men [mean age, 31.0 years ± 9.6] and 67 women [mean age, 35.4 years ± 10.0]) who underwent ACL reconstruction with (n = 19) or without (n = 143) concomitant posterolateral corner (PLC) reconstruction between June 2014 and February 2017...
July 24, 2018: Radiology
https://www.readbyqxmd.com/read/30038920/superior-capsular-reconstruction-with-a-long-head-of-the-biceps-tendon-autograft-a-cadaveric-study
#10
Rami El-Shaar, Sandeep Soin, Gregg Nicandri, Michael Maloney, Ilya Voloshin
Background: Several procedures have been proposed to address irreparable rotator cuff (RC) tears with pseudoparalysis. One recently proposed procedure is superior capsular reconstruction (SCR) using a tensor fasciae latae (TFL) autograft. Hypothesis: SCR with a locally available long head of the biceps tendon (LHB) autograft is biomechanically equivalent to SCR using TFL autograft for preventing superior humeral migration and the development of RC arthropathy in patients with irreparable RC tears...
July 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/30036722/treatment-of-primary-total-distal-biceps-tendon-rupture-using-cortical-button-transosseus-fixation-and-suture-anchor-a-single-center-experience
#11
Nikolaus W Lang, Adam Bukaty, Geraldine D Sturz, Patrick Platzer, Julian Joestl
INTRODUCTION: There remains as of yet no consensus on the optimal treatment for total or partial distal biceps tendon repairs. As such, the purpose of this study was to assess functional outcome, the impact of complications and cost effectiveness, in patients undergoing primary distal biceps tendon repair by either cortical button (CB), transosseous suture (TO) or suture anchor (SA). HYPOTHESIS: There is no difference in functional outcome and cost effectiveness, in patients undergoing distal biceps tendon repair...
July 20, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/30027585/ultrasonography-of-complications-in-surgical-repair-of-the-distal-biceps-brachii-tendon
#12
Viviane Créteur, Afarine Madani, Azadeh Sattari, Wissam El Kazzi, Stefano Bianchi
No abstract text is available yet for this article.
July 19, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/30017183/straight-proximal-humeral-nailing-risk-of-iatrogenic-tendon-injuries-with-respect-to-different-entry-points-in-anatomical-specimens
#13
A M Schwarz, G M Hohenberger, S Euler, A H Weiglein, R Riedl, S Kuchling, R Krassnig, M Plecko
BACKGROUND: The purpose of the study was to evaluate the relationship of implant-related injuries to the adjacent anatomical structures in a newer generation straight proximal humeral nail (PHN) regarding different entry points. The proximity of the proximal lateral locking-screws of the MultiLoc proximal humeral nail (ML PHN) may cause iatrogenic tendon injuries to the lateral edge of the bicipital humeral groove (BG) as reference point for the tendon of the long head of biceps brachii (LBT) as well as the lateral insertion of the infraspinatus tendon (IST)...
July 9, 2018: Injury
https://www.readbyqxmd.com/read/30012516/an-important-role-of-the-biarticular-hamstrings-is-to-exert-internal-external-rotation-moments-on-the-tibia-during-vertical-jumping
#14
Daniel J Cleather
Most research considering biarticular muscle function has tended to focus on the sagittal plane. Instead, the purpose of this study was to evaluate the internal/external rotation moment arms of the biarticular muscles of the knee, and then to explore their function. The FreeBody musculoskeletal model of the lower limb was used to calculate the moment arms and moments that each of the muscles of the knee exerted on the proximal tibia of 12 athletic males during vertical jumping. Biceps femoris and tensor fascia latae were external rotators of the tibia, whereas semimembranosus, semitendinosus, sartorius, gracilis, popliteus and the patellar tendon were internal rotators...
July 19, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29980340/is-augmentation-with-the-long-head-of-the-biceps-tendon-helpful-in-arthroscopic-treatment-of-irreparable-rotator-cuff-tears
#15
Sung-Ryeoll Park, Dong-Hyuk Sun, Jinhong Kim, Hyo-Jin Lee, Jong-Bin Kim, Yang-Soo Kim
BACKGROUND: Although various surgical techniques have been used to treat irreparable rotator cuff tears (RCTs), debate remains regarding which treatment is most effective. The purpose of our study was to compare the outcomes of partial rotator cuff repair versus repair with augmentation of the tenotomized long head of the biceps tendon (LHBT). METHODS: This study included 76 patients with large to massive RCTs. Arthroscopic rotator cuff repair with LHBT augmentation was performed in 39 patients (group I), while partial repair was performed in 37 patients (group II)...
July 3, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29967926/the-impact-of-hypermobility-spectrum-disorders-on-musculoskeletal-tissue-stiffness-an-exploration-using-strain-elastography
#16
Najla Alsiri, Saud Al-Obaidi, Akram Asbeutah, Mariam Almandeel, Shea Palmer
Hypermobility spectrum disorders (HSDs) are conditions associated with chronic joint pain and laxity. HSD's diagnostic approach is highly subjective, its validity is not well studied, and it does not consider many of the most commonly affected joints. Strain elastography (SEL) reflects musculoskeletal elasticity with sonographic images. The study explored the impact of HSD on musculoskeletal elasticity using SEL. A cross-sectional design compared 21 participants with HSD against 22 controls. SEL was used to assess the elasticity of the deltoid, biceps brachii, brachioradialis, rectus femoris, and gastrocnemius muscles, and the patellar and Achilles tendon...
July 3, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29954597/influence-of-forearm-orientation-on-biceps-brachii-tendon-mechanics-and-elbow-flexor-force-steadiness
#17
Rowan R Smart, Sienna Kohn, Cydney M Richardson, Jennifer M Jakobi
Achilles tendon mechanics influence plantar flexion force steadiness (FS) and balance. In the upper limb, elbow flexor FS is greater in supinated and neutral forearm orientations compared to pronated, with contributions of tendon mechanics remaining unknown in position-dependent FS. This study investigated whether distal biceps brachii (BB) tendon mechanics across supinated, neutral and pronated forearm orientations influence position-dependent FS of the elbow flexors. Eleven males (23 ± 3 years) performed submaximal isometric elbow flexion tasks at low (5, 10% maximal voluntary contraction (MVC)) and high (25, 50, 75% MVC) force levels in supinated, neutral and pronated forearm orientations...
July 25, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29948038/case-report-broad-insertion-of-a-large-subscapularis-tendon-in-association-with-congenital-absence-of-the-long-head-of-the-biceps-tendon
#18
Jad M El Abiad, Daniel G Faddoul, Hasan Baydoun
Congenital absence of the long head of the biceps (LHB) tendon is a rare variation in shoulder anatomy. The authors present a case of congenital absence of the long head of the biceps tendon associated with a large insertion of the subscapularis muscle. The patient initially presented with shoulder pain on overhead activity. Shoulder examination was negative for signs of a torn biceps tendon. MRI revealed congenital absence of the LHB tendon, a rim rent tear of the supraspinatus, and a large insertion of the subscapularis muscle...
June 12, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29947844/increased-fatigue-of-the-biceps-after-tenotomy-of-the-long-head-of-biceps-tendon
#19
José Emmanuel García-Rellán, Eduardo Sánchez-Alepuz, Jesús Mudarra-García
PURPOSE: The aim of this study is to evaluate the biomechanical parameters of biceps fatigue (time to claudication during elbow flexion) and strength between the shoulder where the tenotomy has been performed and the healthy arm. The hypothesis of this study was that measuring biceps fatigue may be more useful for determining functionality after tenotomy. METHODS: 52 patients from 2 hospitals were selected to undergo biomechanical tests of healthy and pathological arms, before and 12 months after surgery...
June 12, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29934084/free-reverse-gracilis-muscle-combined-with-steindler-flexorplasty-for-elbow-flexion-reconstruction-after-failed-primary-repair-of-extended-upper-type-paralysis-of-the-brachial-plexus
#20
Jayme Augusto Bertelli
PURPOSE: To report the clinical outcomes of elbow flexion reconstruction using a reverse free gracilis muscle flap plus Steindler flexorplasty in patients with previously failed reconstruction of extended upper-type brachial plexus paralysis. METHODS: Twenty-four male patients were reoperated upon an average of 45 months (SD, ± 45 months) after brachial plexus repair. The gracilis tendon was secured to the acromion, and the muscle belly was sutured to the biceps distal tendon...
June 19, 2018: Journal of Hand Surgery
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