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https://www.readbyqxmd.com/read/29150270/m-biceps-femoris-a-wolf-in-sheep-s-clothing-the-downside-of-a-lower-limb-injury-prevention-training
#1
Thomas Ertelt, Thomas Gronwald
Both, hamstring and ACL injuries are among the most typical injuries, particularly in change of direction and high speed running sports. They're also difficult to treat. Therefore, in the past few years, sports medicine practitioners and exercise scientists have mainly been focusing on the development and implementation of preventive programs in order to reduce the number of lower limb injuries, mainly by improving knee alignment. A number of studies have been able to prove the success of these training interventions, which are mainly addressing sensorimotor abilities and plyometric activities...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149213/optimal-design-and-control-of-an-electromechanical-transfemoral-prosthesis-with-energy-regeneration
#2
Farbod Rohani, Hanz Richter, Antonie J van den Bogert
In this paper, we present the design of an electromechanical above-knee active prosthesis with energy storage and regeneration. The system consists of geared knee and ankle motors, parallel springs for each motor, an ultracapacitor, and controllable four-quadrant power converters. The goal is to maximize the performance of the system by finding optimal controls and design parameters. A model of the system dynamics was developed, and used to solve a combined trajectory and design optimization problem. The objectives of the optimization were to minimize tracking error relative to human joint motions, as well as energy use...
2017: PloS One
https://www.readbyqxmd.com/read/29147164/a-series-of-210-peripheral-arterial-disease-below-knee-amputations-and-predictors-for-subsequent-above-knee-amputations
#3
Jing Ting Wu, Maggie Wong, Zhiwen Joseph Lo, Wei-En Wong, Sriram Narayanan, Glenn Wei Leong Tan, Sadhana Chandrasekar
Objective: To review patient characteristics and outcomes after peripheral arterial disease (PAD)-related below-knee amputation (BKA), and identify risk factors predicting subsequent above-knee amputation (AKA). Materials and Methods: A retrospective study of 210 BKAs between May 2008 and December 2015. Results: The mean age of the study population was 66 years. Most of the patients had cardiovascular comorbidities, and 33% had end-stage renal failure (ESRF); 89% were American Society of Anesthesiologists 3 or 4...
September 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29143961/upregulation-of-epidermal-gap-junctional-proteins-in-patients-with-venous-disease
#4
M Kanapathy, R Simpson, L Madden, C Thrasivoulou, A Mosahebi, D L Becker, T Richards
BACKGROUND: Leg ulceration is a feared complication of venous insufficiency. It is not known whether varicose veins predispose skin to poor wound healing. The expression pattern of gap junctional protein connexin, a known marker of poor wound healing, was investigated across various stages of venous disease. METHODS: Patients undergoing intervention for varicose veins were assessed according to the Clinical Etiologic Anatomic Pathophysiologic (CEAP) classification of varicose veins...
November 16, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/29132347/knee-arthrodesis-versus-above-the-knee-amputation-after-septic-failure-of-revision-total-knee-arthroplasty-comparison-of-functional-outcome-and-complication-rates
#5
Sven Hungerer, Martin Kiechle, Christian von Rüden, Matthias Militz, Knut Beitzel, Mario Morgenstern
BACKGROUND: After septic failure of total knee arthroplasty (TKA) and multiple revision operations resulting in impaired function, bone and/or soft-tissue damage a reconstruction with a revision arthroplasty might be impossible. Salvage procedures to regain mobility and quality of life are an above-the-knee amputation or knee arthrodesis. The decision process for the patient and surgeon is difficult and data comparing arthrodesis versus amputation in terms of function and quality of life are scarce...
November 13, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29130112/infection-risk-assessment-in-patients-undergoing-primary-total-knee-arthroplasty
#6
Lazaros A Poultsides, Georgios K Triantafyllopoulos, Vasileios I Sakellariou, Stavros G Memtsoudis, Thomas P Sculco
PURPOSE: To determine the incidence and to identify potential risk factors for in-hospital and late infections, as well as for deep periprosthetic joint infection (PJI) following TKA. METHODS: We identified 17,959 patients treated with primary TKA between 2000 and 2009. We recorded patient demographics, comorbidities and in-hospital complications. The rates of in-hospital, late, and deep PJIs were determined. Different logistic regression models were built to identify risk factors for each of the above types of infection...
November 12, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29128877/the-location-of-the-medial-parapatellar-arthrotomy-influences-intraoperative-patella-tracking
#7
Scott R Nodzo, Maximilian Kasparek, Kilian Rueckl, Friedrich Boettner
PURPOSE: The medial parapatellar arthrotomy (MPPA) is a commonly utilized surgical approach; however, the placement of the arthrotomy and its influence on intraoperative patellar tracking has not been evaluated. METHODS: Six knees from three fresh frozen cadavers with transthoracic amputations were operated on. All underwent standard posterior stabilized total knee arthroplasty using a medial parapatellar approach placed at the border of the vastus medialis oblique (VMO)-quadriceps junction...
November 11, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29127251/looking-beyond-the-indication-bone-scan-for-trauma-providing-unsuspected-initial-diagnosis-of-acute-critical-lower-limb-arterial-compromise
#8
Fathima Fijula Palot Manzil, Samuel E Almodovar, Pradeep Bhambhvani
We report a case of rare incidental initial detection of unsuspected arterial supply compromise to the right lower extremity on a bone scan done to rule out fracture in a patient with right hip pain following a fall. Follow up CT angiogram confirmed near complete occlusion of right lower extremity arteries for which patient underwent above knee amputation.
November 10, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/29126767/the-quality-of-life-analysis-of-knee-prosthesis-with-complete-microprocessor-control-in-trans-femoral-amputees
#9
Yavuz Saglam, Baris Gulenc, Fevzi Birisik, Ali Ersen, Ebru Yilmaz Yalcinkaya, Onder Yazicioglu
OBJECTIVE: The aim of this study was to analyze the patient demographics, etiology of limb loss as well as reporting SF-36 scores for microprocessor prosthesis users in Turkish population. METHODS: We reviewed 72 patients (61 male and 11 female; mean age: 37.7 ± 10.7) with uni-lateral, above knee amputation and a history of regular and microprocessor prosthesis use. All patients were called back for a last follow-up and they were asked to fill a self-administered general health status questionnaire (SF-36)...
November 7, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29124029/femoro-supragenicular-popliteal-bypass-with-a-bridging-stent-graft-in-a-diffusely-diseased-distal-target-popliteal-artery-alternative-to-below-knee-popliteal-polytetrafluoroethylene-bypass
#10
Joung Hun Byun, Tae Gyu Kim, Yun Gyu Song
Background: Lesions in distal target arteries hinder surgical bypass procedures in patients with peripheral arterial occlusive disease. Methods: Between April 2012 and October 2015, 16 patients (18 limbs) with lifestyle-limiting claudication (n=12) or chronic critical limb ischemia (n=6) underwent femoral-above-knee (AK) polytetrafluoroethylene (PTFE) bypass grafts with a bridging stent graft placement between the distal target popliteal artery and the PTFE graft...
October 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29123654/a-prospective-cohort-study-on-comparison-of-early-outcome-of-classical-ponseti-and-modified-ponseti-post-tenotomy-in-clubfoot-management
#11
Joseph Olorunsogo Mejabi, Oluwadare Esan, Olayinka Oladiran Adegbehingbe, Joseph Effiong Asuquo, Akinyele Lawrence Akinyoola
Introduction: Ponseti method has become the main treatment modality for the management of clubfoot producing good long-term results. However, variation in cast application post tenotomy has not been evaluated. Methods: A prospective cohort study involving 40 patients with 67 clubfeet were randomized into two groups: 32 above knee cast (AKC) and 35 below knee cast (BKC) after percutaneous tenotomy. All had foot abduction brace after post tenotomy cast. The median age was 21 weeks (range: 1-104 weeks) and 1...
December 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/29122965/the-impact-of-dairy-protein-during-limb-immobilization-and-recovery-on-muscle-size-and-protein-synthesis-a-randomized-controlled-trial
#12
Cameron J Mitchell, Randall F D'Souza, Sarah M Mitchell, Vandre Casagrande Figueiredo, Benjamin F Miller, Karyn L Hamilton, Frederick F Peelor, Marcelli Coronet, Chantal A Pileggi, Brenan Durainayagam, Aaron C Fanning, Sally D Poppitt, David Cameron-Smith
Muscle disuse results in the loss of muscular strength and size, due to an imbalance between protein synthesis (MPS) and breakdown (MPB). Protein ingestion stimulates MPS, although it is not established if protein is able to attenuate muscle loss with immobilization (IM) or influence the recovery consisting of ambulatory movement followed by resistance training (RT). Thirty men (49.9±0.6 years) underwent 14 days of unilateral leg IM, 14 days of ambulatory recovery (AR) and a further 6 RT sessions over 14 days...
November 9, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29121961/a-multicomponent-intervention-for-the-management-of-chronic-pain-in-older-adults-study-protocol-for-a-randomized-controlled-trial
#13
Sheung-Tak Cheng, Ka Long Chan, Rosanna W L Lam, Monique H T Mok, Phoon Ping Chen, Yu Fat Chow, Joanne W Y Chung, Alexander C B Law, Jenny S W Lee, Edward M F Leung, Cindy W C Tam
BACKGROUND: Studies have shown that physical interventions and psychological methods based on the cognitive behavioral approach are efficacious in alleviating pain and that combining both tends to yield more benefits than either intervention alone. In view of the aging population with chronic pain and the lack of evidence-based pain management programs locally, we developed a multicomponent intervention incorporating physical exercise and cognitive behavioral techniques and examined its long-term effects against treatment as usual (i...
November 9, 2017: Trials
https://www.readbyqxmd.com/read/29121845/improving-outcomes-for-lower-extremity-amputations-using-intraoperative-fluorescent-angiography-to-predict-flap-viability
#14
Andrew E Yang, Charles A Hartranft, Alisha Reiss, Charles R Holden
OBJECTIVES: Nearly 25% of vascular surgery patients operated on for peripheral vascular disease are readmitted within 30 days. Development of adjuncts to minimize wound complications remains an area of great interest. Here, we present our experience with intraoperative fluorescent angiography (IFA) as a tool to predict skin flap viability following lower extremity amputations (LEAs). METHODS: Experience with IFA using indocyanine green (ICG) dye was reviewed retrospectively at a single institution...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29121813/long-term-outcomes-after-arthroscopic-single-bundle-reconstruction-of-the-posterior-cruciate-ligament-a-7-year-follow-up-study
#15
Rui Wang, Bin Xu, Lei Wu, Honggang Xu
Objective Arthroscopy is the most popular technique in posterior cruciate ligament (PCL) reconstruction surgery. However, no consensus on long-term outcomes after arthroscopic PCL reconstruction has been reached. This study was performed to evaluate the long-term outcomes after arthroscopic autologous hamstring or allogeneic tendon single-bundle reconstruction of the PCL. Methods Fifty-eight patients who underwent arthroscopic PCL reconstruction in Anhui, China from 2007 to 2009 were included. The follow-up period ranged from 56 to 83 months...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29116831/clinician-friendly-physical-performance-tests-for-the-knee
#16
Jerrod J Harrison, Marissa K Yorgey, Alexander J Csiernik, Joseph H Vogler, Kenneth E Games
Reference:  Hegedus EJ, McDonough S, Bleakley C, Cook CE, Baxter GD. Clinician-friendly lower extremity physical performance measures in athletes: a systematic review of measurement properties and correlation with injury. Part 1: the tests for knee function including the hop tests. Br J Sports Med. 2015;49(10):642-648. CLINICAL QUESTION:   Do individual physical performance tests (PPTs) used as measures for lower extremity function have any relationship to injuries in athletes aged 12 years or older? DATA SOURCES:   Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used to locate articles...
November 8, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29115022/self-care-agency-lifestyle-and-physical-condition-predict-future-frailty-in-community-dwelling-older-people
#17
Chika Tanimura, Hiromi Matsumoto, Yasuko Tokushima, Junko Yoshimura, Shinji Tanishima, Hiroshi Hagino
The purpose of this 2 year longitudinal study was to identify the relationship between self-care agency, lifestyle, physical condition, and frailty among community-dwelling older people in a rural area of Japan. The participants were 133 older individuals aged 65 years or above. Data collection was conducted via face-to-face interviews using self-administered questionnaires. Background information, such as age, sex, current employment status, family structure, medication use, comorbidities, and knee and lower back pain, were assessed...
November 8, 2017: Nursing & Health Sciences
https://www.readbyqxmd.com/read/29113670/primary-arthroplasty-in-healed-osteoarticular-allograft-in-patients-with-history-of-primary-femoral-bone-tumors
#18
Bianca M Verbeek, Courtney L Kaiser, Nuno Rui Paulino Pereira, Francis J Hornicek, Kevin A Raskin, Joseph H Schwab, Santiago A LozanoCalderón
BACKGROUND: Roughly 25-35% of patients who are treated with osteoarticular allograft for primary bone sarcomas or aggressive benign bone tumors require surgery in the long-term due to degenerative changes of the articular surface of the allograft. There are three established methods of reconstruction for this complication; a total hip arthroplasty (THA) or total knee arthroplasty (TKA) in the retained osteoarticular allograft, a proximal or distal endoprosthesis after removal of the allograft, and an allograft-prosthesis composite (APC)...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29107499/clinical-outcome-of-massive-endoprostheses-used-for-managing-periprosthetic-joint-infections-of-the-hip-and-knee
#19
Abtin Alvand, George Grammatopoulos, Floris de Vos, Matthew Scarborough, Ben Kendrick, Andrew Price, Roger Gundle, Duncan Whitwell, William Jackson, Adrian Taylor, Christopher L M H Gibbons
BACKGROUND: Endoprosthetic replacement (EPR) is an option for management of massive bone loss resulting from infection around failed lower limb implants. The aim of this study is to determine the mid-term outcome of EPRs performed in the treatment of periprosthetic joint infection (PJI) and infected failed osteosyntheses around the hip and knee joint and identify factors that influence it. METHODS: We retrospectively reviewed all hip and knee EPRs performed between 2007 and 2014 for the management of chronic infection following complex arthroplasty or fracture fixation...
October 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29103557/relationship-of-knee-pain-to-time-in-moderate-and-light-physical-activities-data-from-osteoarthritis-initiative
#20
Jing Song, Alison H Chang, Rowland W Chang, Jungwha Lee, Daniel Pinto, Gillian Hawker, Michael Nevitt, Dorothy D Dunlop
INTRODUCTION: While OA literature indicates greater pain is related to less time being physically active, it is not known if time curtailment occurs primarily for moderate intensity activities or for light activities or in both. We examine the cross-sectional association of knee pain with physical activity using data from 1874 Osteoarthritis Initiative participants. METHODS: Knee pain characteristics of constant and intermittent pain were each scored by the Intermittent and Constant Osteoarthritis Pain instrument and categorized into four pain levels (no pain, intermittent pain below and above median level, and constant pain)...
October 9, 2017: Seminars in Arthritis and Rheumatism
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