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Long head of biceps

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https://www.readbyqxmd.com/read/29337716/management-of-biceps-tendon-pathology-from-the-glenoid-to-the-radial-tuberosity
#1
Rachel M Frank, Eric J Cotter, Eric J Strauss, Laith M Jazrawi, Anthony A Romeo
Management of proximal and distal biceps tendon pathology is evolving. The long head of the biceps tendon, if inflamed, may be a pain-producing structure. In appropriately indicated patients, a symptomatic long head of the biceps tendon can be surgically managed via tenotomy, tenodesis, and/or superior labrum anterior to posterior repair. In some patients, primary superior labrum anterior to posterior pathology can be managed via biceps tenodesis. Determining which procedure is most appropriate and which technique and implant are preferred for a given patient with biceps tendon pathology is controversial...
January 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29336361/muscle-magnetic-resonance-imaging-for-the-differentiation-of-multiple-acyl-coa-dehydrogenase-deficiency-and-immune-mediated-necrotizing-myopathy
#2
Ya-Wen Zhao, Xiu-Juan Liu, Wei Zhang, Zhao-Xia Wang, Yun Yuan
BACKGROUND: Clinically, it is difficult to differentiate multiple acyl-CoA dehydrogenase deficiency (MADD) from immune-mediated necrotizing myopathy (IMNM) because they display similar symptoms. This study aimed to determine whether muscle magnetic resonance imaging (MRI) could be used for differential diagnosis between MADD and IMNM. METHODS: The study evaluated 25 MADD patients, confirmed by muscle biopsy and ETFDH gene testing, and 30 IMNM patients, confirmed by muscle biopsy...
January 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29305621/-modern-treatment-strategies-for-the-long-head-of-the-biceps-tendon
#3
REVIEW
S Braun, A B Imhoff
The long head of the biceps and the biceps pulley sling are prone to acute or degenerative injury. As they both were identified as major pain generators, adequate diagnosis and treatment is vital for successful treatment of shoulder pain. Although the basic principles to address either pathology have not changed over the last decades, new trends have evolved to simplify surgical options. SLAP (superior labral tear from anterior to posterior) repair is seen more restrictive and is mostly performed in young individuals, whereas tenotomy or tenodesis are more often used in patients over 30...
January 5, 2018: Der Orthopäde
https://www.readbyqxmd.com/read/29304985/editorial-commentary-the-partial-thickness-rotator-cuff-tear-is-acromioplasty-without-repair-ever-indicated
#4
EDITORIAL
Frank A Cordasco
I believe that arthroscopic repair is the treatment of choice for patients with partial thickness rotator cuff tears when nonoperative methods have been exhausted. Excluding overhead athletes and patients in whom long head biceps tendon pathology is the primary concern, I do not believe that a significant role exists for debridement with or without acromioplasty in the majority of patients with partial thickness tears. Regarding the repair technique, I prefer in situ repair for bursal-sided tears because the superior capsule is intact and completion of the tear with repair for articular-sided tears...
January 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29304102/activation-of-biceps-femoris-long-head-reduces-tibiofemoral-anterior-shear-force-and-tibial-internal-rotation-torque-in-healthy-subjects
#5
Nur Liyana Azmi, Ziyun Ding, Rui Xu, Anthony M J Bull
The anterior cruciate ligament (ACL) provides resistance to tibial internal rotation torque and anterior shear at the knee. ACL deficiency results in knee instability. Optimisation of muscle contraction through functional electrical stimulation (FES) offers the prospect of mitigating the destabilising effects of ACL deficiency. The hypothesis of this study is that activation of the biceps femoris long head (BFLH) reduces the tibial internal rotation torque and the anterior shear force at the knee. Gait data of twelve healthy subjects were measured with and without the application of FES and taken as inputs to a computational musculoskeletal model...
2018: PloS One
https://www.readbyqxmd.com/read/29287950/subpectoral-biceps-tenodesis-with-peek-interference-screw-a-biomechanical-analysis-of-humeral-fracture-risk
#6
Christopher R Mellano, Rachel M Frank, Jason J Shin, Akshay Jain, William A Zuke, Randy Mascarenhas, Elizabeth Shewman, Brian J Cole, Anthony A Romeo, Nikhil N Verma, Brian Forsythe
PURPOSE: To quantify the torsional load to fracture for subpectoral biceps tenodesis with interference screw fixation. METHODS: We randomized 28 specimens from 14 matched-pair full-length humeri (mean age, 55.3 years) into 3 groups: (1) empty ream group (ERG), (2) screw-only group (SOG), and (3) screw-plus-biceps tendon group (SBG). In each group, 1 humerus of each matched pair was prepared according to group allocation and the contralateral humerus remained intact as a control...
December 26, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29225162/can-ultrasound-be-used-to-improve-the-palpation-skills-of-physicians-in-training-a-prospective-study
#7
Ryan Woods, Steve J Wisniewski, Daniel R Lueders, Thomas P Pittelkow, Dirk R Larson, Jonathan T Finnoff
BACKGROUND: Accurate diagnosis of musculoskeletal disorders relies heavily upon the physical examination, including accurate palpation of musculoskeletal structures. The literature has suggested there has been deterioration of physical examination skills among medical students and residents in part due to increased reliance on advanced imaging. It has been shown that knowledge of musculoskeletal anatomy and physical examination skills improve with the use of ultrasound; however, the literature is limited...
December 7, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29223017/biceps-femoris-fascicle-length-during-passive-stretching
#8
Eleftherios Kellis
The purpose of this study was to quantify the relative changes in fascicle (FL) and muscle-tendon unit (LMTU) length of the long head of the biceps femoris (BFlh) at different combinations of hip and knee joint positions. Fourteen participants performed passive knee extension trials from 0°, 45° and 90° of hip flexion. FL, LMTU, pennation angle (PA) and effective FL (FL multiplied by the cosine of the PA) of the BFlh were quantified using ultrasonography (US). Three-way analysis of variance designs indicated that at each hip angle, FL and LMTU increased and PA decreased from 90° to 0° of knee flexion...
December 5, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29204437/reference-values-of-flexion-and-supination-in-the-elbow-joint-of-a-cohort-without-shoulder-pathologies
#9
Mehmet F Güleçyüz, Matthias F Pietschmann, Stefan Michalski, Ferdinand M Eberhard, Alexander Crispin, Christian Schröder, Maximilian J Mittermüller, Peter E Müller
Background: After surgery of the long head of the biceps tendon, the examination of the biceps brachii muscle function and strength is common clinical practice. The muscle strength is usually compared with the uninjured contralateral side or with a matched pair group assuming that the uninjured side can be used as an appropriate reference. Hypothesis/Purpose: The purpose of this study was to define reference values of the supination and flexion strength in the elbow joint and to investigate the influence of the arm positions and various anthropometric factors...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29201303/bridging-graft-in-irreparable-massive-rotator-cuff-tears-autogenic-biceps-graft-versus-allogenic-dermal-patch-graft
#10
Sung Min Rhee, Joo Han Oh
Background: Few comparative studies have reported on the use of biologic grafts for irreparable massive rotator cuff tears. The purpose of this study was to assess the results of arthroscopic bridging graft in irreparable massive rotator cuff tears using an autogenic long head of biceps tendon (LHBT) or an allogenic dermal patch (ADP). Methods: We retrospectively reviewed 24 patients treated using the LHBT (group I) and eight patients with complete rupture of the LHBT treated using an ADP (group II) since 2011...
December 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29193070/development-of-the-human-shoulder-joint-during-the-embryonic-and-early-fetal-stages-anatomical-considerations-for-clinical-practice
#11
Fidel Hita-Contreras, Indalecio Sánchez-Montesinos, Antonio Martínez-Amat, David Cruz-Díaz, Rafael J Barranco, Olga Roda
Although several studies have been published regarding the morphology and anatomical variations of the human shoulder joint, most have dealt with adult individuals. Those looking into the development of the joint have been focused on specific structures or have observed specimens in advanced gestational stages. The goal of this paper is to perform a complete analysis of the embryonic and early fetal development of the elements in the shoulder joint, and to clarify some contradictory data in the literature. In our study, serial sections of 32 human embryos (Carnegie stages 16-23) and 26 fetuses (9-13 weeks) were analyzed...
November 28, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29169096/neuromuscular-compensatory-strategies-at-the-trunk-and-lower-limb-are-not-resolved-following-an-acl-reconstruction
#12
Grant Boggess, Kristin Morgan, Darren Johnson, Mary Lloyd Ireland, Jeffrey A Reinbolt, Brian Noehren
BACKGROUND: Following anterior cruciate ligament reconstruction (ACLR), patients present with greater trunk ipsilateral lean, which may affect knee kinetics and increase re-injury risk. However, there has been little research into neuromuscular factors controlling the trunk and their relation to the knee between healthy and ACLR subjects. This is critical to establish in order to develop more directed and effective interventions. HYPOTHESIS: As compared to healthy control subjects, ACLR subjects will demonstrate increased erector spinae and rectus abdominis co-contraction, greater rectus abdominis force and greater hamstring force that is correlated to increased forward trunk lean...
November 13, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29166912/neurofilament-distribution-in-the-superior-labrum-and-the-long-head-of-the-biceps-tendon
#13
Sandra Boesmueller, Antal Nógrádi, Patrick Heimel, Christian Albrecht, Sylvia Nürnberger, Heinz Redl, Christian Fialka, Rainer Mittermayr
BACKGROUND: The postoperative course after arthroscopic superior labrum anterior to posterior (SLAP) repair using suture anchors is accompanied by a prolonged period of pain, which might be caused by constriction of nerve fibres. The purpose was to histologically investigate the distribution of neurofilament in the superior labrum and the long head of the biceps tendon (LHBT), i.e. the location of type II SLAP lesions. METHODS: Ten LHBTs including the superior labrum were dissected from fresh human specimen and immunohistochemically stained against neurofilament (NF)...
November 22, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29166217/the-radiologist-s-primer-to-imaging-the-noncuff-nonlabral-postoperative-shoulder
#14
Christopher R Smith, Jason T Yoon, Jeremiah R Long, Michael V Friedman, Travis J Hillen, James D Stensby
Many radiologists are familiar with the preoperative imaging assessment of patients with labral tears, rotator cuff abnormalities, and end-stage arthritis, as well as the subsequent primary reconstructions and repairs commonly encountered in routine clinical management. However, the second-line surgical procedures and augmentation procedures performed for refractory or recurrent shoulder instability and the extra-articular surgical procedures of the shoulder girdle may challenge even the most experienced musculoskeletal radiologist...
November 22, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29161747/a-functional-mri-exploration-of-hamstring-activation-during-the-supine-bridge-exercise
#15
Matthew Bourne, Morgan Williams, Tania Pizzari, Anthony Shield
The single leg supine bridge (SLB) is a commonly employed strengthening exercise and is used as a clinical test for hamstring function in sports, however, little is known about the patterns of muscle activation in this task. To explore these activation patterns, nine healthy, recreationally active males underwent functional magnetic resonance imaging (fMRI) of their thighs at rest and immediately after 5 sets of 10 repetitions of the SLB exercise. Exercise-induced increases in the transverse (T2) relaxation time of the biceps femoris long and short heads, semitendinosus and semimembranosus, were determined via signal intensity changes in pre- and post-exercise images and used as an index of muscle activation...
November 21, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29157108/morphological-classification-of-anatomical-variants-of-the-intra-articular-portion-of-the-long-head-of-the-biceps-brachii-tendon-and-analysis-of-the-incidence-and-the-relationship-with-shoulder-disease-for-each-subtype
#16
Jeung Yeol Jeong, Seung Min Park, Young Eun Park, Jae Chul Yoo
PURPOSE: Although several cases of anatomical variants of the proximal portion of the long head of the biceps brachii tendon have been reported, most are case reports on single patients; few studies have investigated the classification and incidence of this phenomenon. We aimed to classify the variants of the long head of the biceps brachii tendon by their morphology and characterize them in regard to incidence, demography, and the relationship with biceps tendon or other shoulder diseases...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29153993/the-high-frequency-of-superior-labrum-biceps-tendon-and-superior-rotator-cuff-pathologies-in-patients-with-subscapularis-tears-a-cohort-study
#17
Muhammet Baybars Ataoglu, Mehmet Cetinkaya, Mustafa Ozer, Tacettin Ayanoglu, Ulunay Kanatli
BACKGROUND: The purpose of this study was to assess the frequency of superior labrum anterior posterior (SLAP) lesions, long head of biceps tendon (LHBT) pathologies, and superior rotator cuff tears accompanying subscapularis tears. We hypothesised that LHBT lesions, superior rotator cuff tears, and especially SLAP lesions were very frequent with subscapularis tears. METHODS: The digital files of patients who underwent shoulder arthroscopy were reviewed retrospectively...
November 16, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29143379/region-dependent-hamstrings-activity-in-nordic-hamstring-exercise-and-stiff-leg-deadlift-defined-with-high-density-emg
#18
András Hegyi, Annamária Péter, Taija Finni, Neil J Cronin
Recent studies suggest region-specific metabolic activity in hamstring muscles during injury prevention exercises, but the neural representation of this phenomenon is unknown. The aim of this study was to examine whether regional differences are evident in the activity of biceps femoris long head (BFlh) and semitendinosus (ST) muscles during two common injury prevention exercises. Twelve male participants without a history of hamstring injury performed the Nordic hamstring exercise (NHE) and stiff-leg deadlift (SDL) while BFlh and ST activity were recorded with high-density electromyography (HD-EMG)...
November 15, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29131279/electron-microscope-study-of-the-advanced-tendinopathy-process-of-the-long-head-of-the-biceps-brachii-tendon-treated-arthroscopically
#19
Jan Zabrzyński, Maciej Gagat, Łukasz Paczesny, Łukasz Łapaj, Dariusz Grzanka
BACKGROUND: The ultrastructural alterations related to tendinopathy have not been well described. Most studies on this subject have been conducted many years ago and focused on material from the Achilles tendon. It was demonstrated that various comorbidities can affect ultrastructural alterations in the advanced tendinopathy, however there is very little data on ultrastructural morphology in tendinopathies related to mechanical overload as in case of the long head of the biceps brachii tendon (LHBT)...
November 13, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29116573/an-evidence-based-framework-for-strengthening-exercises-to-prevent-hamstring-injury
#20
REVIEW
Matthew N Bourne, Ryan G Timmins, David A Opar, Tania Pizzari, Joshua D Ruddy, Casey Sims, Morgan D Williams, Anthony J Shield
Strength training is a valuable component of hamstring strain injury prevention programmes; however, in recent years a significant body of work has emerged to suggest that the acute responses and chronic adaptations to training with different exercises are heterogeneous. Unfortunately, these research findings do not appear to have uniformly influenced clinical guidelines for exercise selection in hamstring injury prevention or rehabilitation programmes. The purpose of this review was to provide the practitioner with an evidence-base from which to prescribe strengthening exercises to mitigate the risk of hamstring injury...
November 7, 2017: Sports Medicine
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