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Ryan J McNeilan, Michael Rose, Omer Mei-Dan, James Genuario
Hip adduction is accomplished through coordinated effort of the adductor magnus, brevis, and longus and the obturator externus and pectineus muscles. Each of these muscles may be injured at its proximal or distal insertion or in its midsubstance. The incidence of injuries to the adductor complex is difficult to determine in sport because of players' underreporting and playing through minor strains. The most commonly injured adductor muscle is the adductor longus muscle. The injury most frequently occurs at the proximal or distal musculotendinous junction, but several case reports of origin and insertional ruptures of the adductor longus exist in the literature...
January 2019: Arthroscopy Techniques
Branten J Page, Oliver D Mrowczynski, Russell A Payne, Sarah E Tilden, Hector Lopez, Elias Rizk, Kimberly Harbaugh
In peripheral nerve surgery, repair of the femoral nerve (FN) requires identification of normal nerve elements both proximal and distal to the level of the injury. We identified FN branches to the sartorius (SRT) and quadriceps muscles in 16 embalmed specimens and calculated the length of each branch to its point of entry into its respective muscle. The SRT and rectus femoris (RF) muscles were mobilized but not transected to mimic the surgical approach. Ratios of the length of each motor branch as a unit of the total length of the thigh, defined as the FN at the inguinal ligament to the superior margin of the patella were also calculated...
January 14, 2019: Curēus
Richard D Rames, Toby N Barrack, Robert L Barrack, Ryan M Nunley
BACKGROUND: Multimodal pain management strategies are commonplace in perioperative management of total knee arthroplasty (TKA), although controversy remains regarding the role of adductor canal blocks (ACB) in this algorithm. The purpose of this study is to independently evaluate the effect of ACB on short-term postoperative outcomes including (1) length of stay (LOS), (2) postoperative narcotic utilization, and (3) function with physical therapy in the era of modern TKA. METHODS: We retrospectively identified a cohort of consecutive patients from January 2014 to January 2018 who had undergone unilateral primary TKA using a single-shot ACB in addition to a standardized multimodal pain regimen vs those who only received a multimodal pain regimen...
February 25, 2019: Journal of Arthroplasty
Phillip C Song, Hoai Le, Patrick Acuna, Jan Kristopher Palentinos De Guzman, Nutan Sharma, Taylor N Francouer, Marisela E Dy, Criscely L Go
OBJECTIVES: To systematically characterize and describe voice and swallowing manifestations in patients with X-linked dystonia parkinsonism (XDP) and correlate with quality-of-life (QOL) measures. METHODS: Thirty-four patients with XDP with communication and swallowing difficulties underwent neurological examination, head and neck examination, nasopharyngoscopy, QOL surveys (Swallowing Quality of Life questionnaire [SWAL-QOL] and Voice Handicap Index [VHI]), and functional endoscopic evaluation of swallowing (FEES) to assess the extent of dysfunction...
March 19, 2019: Laryngoscope
Sili He, Wentao Jiang, Ruiqi Dong, Fei Yan, Zhi Xu, Yubo Fan
This study analyzed the inherent relation between arterial blood mass flow and muscle atrophy of residual limb to provide some necessary information and theoretical support for the clinical rehabilitation of lower limb amputees. Three-dimensional arterial model reconstruction was performed on both intact side and residual limb of a unilateral transfemoral amputee who is the subject. Then hemodynamic calculation was carried out to comparatively analyze the mass flow state at each arterial outlet of both lower extremities...
February 25, 2019: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
Xiaowen Zhu, Feng Wang, Weiqi Ling, Xiaoyu Dai
OBJECTIVE: Recently, there has been an increasing interest in combined adductor canal block (ACB) with periarticular anesthetic injection (PAI) as a technique to control postoperative pain in total knee arthroplasty (TKA). This study evaluated the analgesic efficacy and safety of the combined therapy for early postoperative pain treatment after TKA. METHODS: From the inception to July 2018, two independent investigators used the following electronic databases to search existing literature: PubMed, Embase, Medline, and Web of Science...
March 19, 2019: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
Hyun Su Kim, Young Cheol Yoon, Byung-Ok Choi, Wook Jin, Jang Gyu Cha
BACKGROUND: This study aimed to evaluate the potential value of 3D multiple gradient echo Dixon-based magnetic resonance imaging (MRI) sequence as a tool for thigh intramuscular fat quantification in Charcot-Marie-Tooth disease (CMT) patients. METHODS: A prospective comparison study comprising 18 CMT patients and 18 age/sex-matched volunteers was performed. MRI including 3D multiple gradient echo Dixon-based imaging was performed for each subject. Region of interest analyses were performed at the upper and lower third of both thighs...
March 15, 2019: Journal of Cachexia, Sarcopenia and Muscle
Nils Eckardt, Noah J Rosenblatt
Locomotor stability is challenged by internal perturbations, e.g., motor noise, and external perturbations, e.g., changes in surface compliance. One means to compensate for such perturbations is to employ motor synergies, defined here as co-variation among a set of elements that acts to stabilize, or provide similar trial-to-trial (or step-to-step) output, even in the presence of small variations in initial conditions. Whereas evidence exists that synergies related to the upper extremities can be trained, the extent to which lower limb synergies, such as those which may be needed to successfully locomote in complex environments, remains unknown...
2019: Frontiers in Aging Neuroscience
Martin Lind, Torsten Nielsen, Lene Miller, Ole Gade Sørensen, Bjarne Mygind-Klavsen, Peter Faunø
PURPOSE: The aim of the present randomized controlled trial was to compare 2 different medial patellofemoral ligament reconstruction (MPFL-R) techniques that utilize different femoral fixation principles, which could affect subjective clinical outcomes and surgical morbidity. METHODS: Sixty patients were randomly assigned to 2 MPFL-R techniques: bone or soft-tissue fixation of the graft at the femoral condyle. Patients had operations performed between 2010 and 2015 at a single center...
March 11, 2019: Arthroscopy: the Journal of Arthroscopic & related Surgery
Chia-Ling Chen, Chung-Yao Chen, Hsieh-Ching Chen, Ching-Yi Wu, Keh-Chung Lin, Yu-Wei Hsieh, I-Hsuan Shen
BACKGROUND: Spasticity is a major problem in patients with stroke and influences their activities of daily living, participation, and quality of life. The Modified Ashworth Scale is widely used to assess spasticity. However, the responsiveness and minimal clinically important differences of the Modified Ashworth Scale in patients with stroke have not been explored. AIM: This study aims to examine the responsiveness and minimal clinically important differences of the Modified Ashworth Scale in patients with stroke...
March 11, 2019: European Journal of Physical and Rehabilitation Medicine
Liang Yin, Zhi-Ying Xie, Hai-Yan Xu, Sui-Sheng Zheng, Zhao-Xia Wang, Jiang-Xi Xiao, Yun Yuan
Quantitative magnetic resonance image (MRI) in individual muscles may be useful for monitoring disease progression in Duchenne muscular dystrophy (DMD). The purpose of this study was to measure T2 relaxation time of thigh muscles in children with DMD and healthy boys, and to correlate the T2 relaxation time of muscles with the fat fraction (FF) at quantitative magnetic resonance and results of clinical assessment. Thirty-two boys with DMD and 18 healthy boys were evaluated with T2 mapping and three-point Dixon MRI...
February 2019: Current Medical Science
Bryan G Beutel, Eitan Melamed, Michael E Rettig
A Stener lesion is a complete tear of the ulnar collateral ligament (UCL) from the thumb proximal phalanx at the level of the metacarpophalangeal (MCP) joint that is displaced superficial to the adductor pollicis aponeurosis, leading to interposition of the aponeurosis between the UCL and the MCP joint. The interposition of the adductor aponeurosis distinguishes the Stener lesion from other UCL injuries and impedes healing, thereby necessitating surgery. A thorough clinical examination, including valgus stress testing of the MCP joint, is crucial to the diagnosis...
March 2019: Bulletin of the Hospital for Joint Diseases
Fatemeh Adelnia, Michelle Shardell, Christopher M Bergeron, Kenneth W Fishbein, Richard G Spencer, Luigi Ferrucci, David A Reiter
Aging is associated with impaired endothelium-dependent vasodilation that leads to muscle perfusion impairment and contributes to organ dysfunction. Impaired muscle perfusion may result in inadequate delivery of oxygen and nutrients during and after muscle contraction, leading to muscle damage. The ability to study the relationship between perfusion and muscle damage has been limited using traditional muscle perfusion measures, which are invasive and risky. To overcome this limitation, we optimized a diffusion-weighted MRI sequence and validated an intravoxel incoherent motion (IVIM) analysis based on Monte Carlo simulation to study muscle perfusion impairment with aging during post-exercise hyperemia...
March 12, 2019: NMR in Biomedicine
Zhiyong Li, Hongwu Zeng, Chunxi Han, Longwei Sun, Diangang Fang, Hongkui Yu, Xianyue Quan
OBJECTIVE: The purpose of this study was to investigate the potential of high-speed T2-corrected multiecho (HISTO) MR spectroscopy (MRS) for rapidly quantifying the fat content of thigh muscles in children with Duchenne muscular dystrophy (DMD). SUBJECTS AND METHODS: This study prospectively enrolled 58 boys with DMD (mean age, 7.5 years; range, 4-11 years) and 30 age-matched healthy boys (mean age, 7.2 years; range, 4-11 years) at one institution over a 1-year period...
March 12, 2019: AJR. American Journal of Roentgenology
Josu Gomez-Ezeiza, Jordan Santos-Concejero, Jon Torres-Unda, Brian Hanley, Nicholas Tam
PURPOSE: The aim of this study was to analyse the association between muscle activation patterns on oxygen cost of transport in elite race walkers over the entire gait waveform. METHODS: Twenty-one Olympic race walkers performed overground walking trials at 14 km∙h-1 where muscle activity of the gluteus maximus, adductor magnus, rectus femoris, biceps femoris, medial gastrocnemius and tibialis anterior were recorded. Race walking economy was determined by performing an incremental treadmill test ending at 14 km∙h-1 ...
March 12, 2019: International Journal of Sports Physiology and Performance
Briggs Ahearn, Arun Kumar, Ajay Premkumar, Heather Samady, Michael Gottschalk, John Xerogeanes, Spero Karas
Background: An adductor canal block (ACB) and preoperative oral gabapentin have each been shown to decrease postoperative pain scores and opioid usage in patients undergoing anterior cruciate ligament (ACL) reconstruction. Purpose/Hypothesis: This study evaluated the efficacy of preoperative gabapentin on postoperative analgesia in patients who received an ACB. We hypothesized that patients undergoing ACL reconstruction with an ACB who utilized a single dose of preoperative oral gabapentin would have decreased pain and opioid consumption in the 24 to 72 hours after surgery compared with patients who did not utilize gabapentin...
March 2019: Orthopaedic Journal of Sports Medicine
Hyun-Ju Noh, Chan-Myeong Kim, Ji-Won Park
[Purpose] Although much researches have been conducted on the hippotherapy, the intervention methods of the previous studies focus on the pelvis posture. Thus, this study analyzed the electromyogram (EMG) of trunk muscle and lower limb muscle to analyze the kinetic factors. Based on the analysis, this study aims to compare the muscle load and suggest effective exercise method. [Participants and Methods] This study checked the muscle activity of Rectus abdominis (RA), Erector spinae (ES), Rectus femoris (RF), Adductor magnus (AM) during the exercise using horse riding machine in dorsiflexion position by bending 20 degrees and in neutral position...
February 2019: Journal of Physical Therapy Science
Xue Li, Shuyue Wang, Xiaogang Xun, Mengran Zhang, Shi Wang, Hengde Li, Liang Zhao, Qiang Fu, Huizhen Wang, Tingting Li, Shanshan Lian, Qiang Xing, Xu Li, Wei Wu, Lingling Zhang, Xiaoli Hu, Zhenmin Bao
As lipid microconstituents mainly of plant origin, carotenoids are essential nutrients for humans and animals, and carotenoid coloration represents an important meat quality parameter for many farmed animals. Currently, the mechanism of carotenoid bioavailability in animals is largely unknown mainly due to the limited approaches applied, the shortage of suitable model systems and the restricted taxonomic focus. The mollusk Yesso scallop (Patinopecten yessoensis) possessing orange adductor muscle with carotenoid deposition, provides a unique opportunity to research the mechanism underlying carotenoid utilization in animals...
March 8, 2019: Biochimica et Biophysica Acta. Molecular and Cell Biology of Lipids
Maria De Los Angeles Sanchez Roldan, Maria J Téllez, Sedat Ulkatan, Catherine F Sinclair
OBJECTIVE: The laryngeal adductor reflex (LAR) is an airway-protective response triggered by sensory laryngeal receptors and resulting in bilateral vocal fold adduction. The normal morphology of the early R1 response resembles that of the compound muscle action potential (CMAP). However, in a small subset of patients, the morphology is dyssynchronous with multiple peaks. This study investigates whether preoperative LAR dyssynchrony predicts intraoperative nerve behavior during thyroid surgeries...
March 12, 2019: Otolaryngology—Head and Neck Surgery
V Moreno-Pérez, B Travassos, A Calado, O Gonzalo-Skok, J Del Coso, A Mendez-Villanueva
OBJECTIVE: To examining the relationship between hip adductor strength and groin injury incidence during the competitive season of professional football teams. DESIGN: Prospective Cohort study. SETTING: Controlled laboratory environment. PARTICIPANTS: Seventy-one players volunteered to participate. MAIN OUTCOME MEASURES: In the pre-season, maximal hip adductor strength was measured by means of the isometric adductor squeeze test...
March 2, 2019: Physical Therapy in Sport
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