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https://www.readbyqxmd.com/read/29427125/survival-complications-and-functional-outcomes-of-cemented-megaprostheses-for-high-grade-osteosarcoma-around-the-knee
#1
Chunlin Zhang, Jianping Hu, Kunpeng Zhu, Tao Cai, Xiaolong Ma
PURPOSE: We initiated a retrospective study on the long-term survival of cemented endoprostheses for bone tumours around the knee to answer the following questions: (1) What was the survival of these patients? (2) What was the overall survival of cemented prostheses around the knee? (3) What types of failures were observed in these reconstructions? (4) Did the survival and complications vary according to the site of the implant? (5) What was the functional result after cemented prosthesis replacement around the knee? METHODS: From January 2006 to December 2013, 108 consecutive patients with an average age of 25 years, who had mature bone development as evidenced by imaging examinations, underwent 108 cemented endoprosthetic knee replacements for osteosarcoma resection...
February 9, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29356967/sporadic-late-onset-nemaline-myopathy-clinical-pathology-and-imaging-findings-in-a-single-center-cohort
#2
Mauro Monforte, Guido Primiano, Gabriella Silvestri, Massimiliano Mirabella, Marco Luigetti, Cristina Cuccagna, Enzo Ricci, Serenella Servidei, Giorgio Tasca
Sporadic late-onset nemaline myopathy (SLONM) is a rare acquired myopathy characterized by rapid-onset proximal weakness in late adulthood, and the presence of nemaline bodies on muscle biopsy. In recent years, several therapeutic interventions, including immunomodulating agents and autologous stem cell transplantation, have shown variable degrees of efficacy in different patients, but no consensus has been reached to allow an effective tailoring of treatments in this severe disease. We performed a retrospective evaluation of clinical, pathological, laboratory, muscle MRI, and follow-up data of SLONM patients diagnosed in the period 2010-2015 in our neuromuscular center...
January 22, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29354422/combined-anatomic-anterior-cruciate-ligament-and-double-bundle-anterolateral-ligament-reconstruction
#3
Assem Mohamed Noureldin Zein, Mohamed Elshafie, Ahmed Nady Saleh Elsaid, Mohamed Ahmed Elsaid Elrefai
The results of arthroscopic anterior cruciate ligament (ACL) reconstruction are so far satisfactory and improving over time as a result of the improved understanding of the anatomy and biomechanics of the ACL. Rotational instability confirmed by a positive pivot shift is present in more than 15% of cases who underwent successful ACL reconstruction. Persistent rotational instability interferes with performing pivoting sports, and also may lead to meniscal and chondral injuries, or re-rupture of the reconstructed ACL...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29324458/ultrasound-imaging-and-guided-injection-for-the-lateral-and-posterior-hip
#4
Ke-Vin Chang, Wei-Ting Wu, Henry L Lew, Levent Özçakar
Ultrasound has emerged as one of the most utilized tools to diagnose musculoskeletal disorders and to assist in interventions. Traditionally, sonographic examination of the hip joint has been challenging because most of the major structures are deeply situated, thus requiring the use of curvilinear transducer for better penetrance. The posterior lateral hip is a frequent area for musculoskeletal pain and nerve entrapments. Common disorders include greater trochanteric pain syndrome, gluteus medius tendinopathy, piriformis syndrome, pudendal neuralgia and proximal hamstring tendinopathy...
January 11, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29304958/editorial-commentary-proximal-hamstring-syndrome-another-pain-in-the-buttock
#5
EDITORIAL
Dean K Matsuda
Proximal hamstring injuries cause buttock pain and may result in significant weakness and sciatic neuralgia. Avulsion ruptures involving 2 or more tendons with >2-cm retraction may benefit from early open surgical repair. More chronic equivalents may benefit from Achilles allograft reconstruction. Chronic proximal hamstring syndrome causing posterior thigh and sit pain may occur from less severe, often repetitive injury to the proximal hamstring origin with secondary sciatic neuralgia from local adhesions or scar entrapment...
January 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29299655/medial-patellofemoral-ligament-reconstruction-in-children-do-osseous-abnormalities-matter
#6
Sebastien Pesenti, Matthieu Ollivier, Jean-Charles Escudier, Mathieu Cermolacce, Alexandre Baud, Franck Launay, Jean-Luc Jouve, Elie Choufani
PURPOSE: Management of post-traumatic patellar instability in children with osseous abnormalities is challenging because of the presence of an open physis. The aim of our study was to compare the rate of recurrence after isolated reconstruction of the medial patellofemoral ligament (MPFL) in children with or without osseous abnormalities. METHODS: The medical records of 25 children (27 knees) with recurrent patellar dislocation were reviewed. Each child underwent an isolated reconstruction of the MPFL using a hamstring graft...
January 4, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29219884/abduction-in-proximal-hamstring-tendon-avulsion-injury-mechanism-a-report-on-3-athletes
#7
Anne D van der Made, Rolf W Peters, Claire Verheul, Mario Maas, Gino M Kerkhoffs
Proximal hamstring tendon avulsions are typically sustained during forced hip hyperflexion combined with knee extension. We present 3 cases of athletes with a proximal hamstring tendon avulsion caused by an alternative injury mechanism that also involves a considerable hip abduction component (flexion-abduction injury mechanism). All cases had at least one concurrent injury of the medial thigh muscles, either on the ipsilateral or contralateral side. The 2 elite athletes with this injury mechanism returned to sport at preinjury level relatively quickly...
December 1, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29203381/accuracy-of-3-clinical-tests-to-diagnose-proximal-hamstrings-tears-with-and-without-sciatic-nerve-involvement-in-patients-with-posterior-hip-pain
#8
RobRoy L Martin, Ricardo Gonçalves Schröder, Juan Gomez-Hoyos, Anthony N Khoury, Ian James Palmer, Ryan P McGovern, Hal David Martin
PURPOSE: To determine the diagnostic accuracy of the active hamstring test at 30° (A-30) and 90° (A-90) of knee flexion, the long stride heel strike (LSHS) test, and combination of the 3 tests for individuals with hamstring tendon tears, with and without sciatic nerve involvement. METHODS: A retrospective review of 564 consecutive clinical records identified 42 subjects with a mean age of 50.31 ± 15 years who underwent a standard physical examination prior to magnetic resonance imaging (MRI) evaluation and diagnostic injection for posterior hip...
December 1, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29201925/a-comparison-of-nonoperative-and-operative-treatment-of-complete-proximal-hamstring-ruptures
#9
Braidy C Shambaugh, Joshua R Olsen, Edward Lacerte, Ethan Kellum, Suzanne L Miller
Background: The early repair of acute proximal hamstring ruptures provides better clinical results than delayed repair. However, it is unclear how nonoperative treatment compares with the operative treatment of these injuries. Purpose: To compare the clinical results of the nonoperative and operative treatment of acute proximal hamstring ruptures. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 25 patients with complete, retracted proximal hamstring ruptures presenting to 1 institution were retrospectively reviewed...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29192932/a-novel-technique-to-repair-acute-and-chronic-proximal-hamstring-avulsions
#10
Michael T Cain, Matthew C Jones, Dale N Reed
Treatment of proximal hamstring avulsions is challenging regarding both timing and choice of repair. In chronic situations, the tissue can become attenuated, bringing into question the need for adjunctive allograft. In general, proximal hamstring avulsions are affixed back to the ischial tuberosity with suture anchors, with allograft used as needed for chronic situations. This article reports on a novel technique of suspensory fixation with a unicortical button but without allograft to repair both acute and chronic proximal hamstring avulsions...
November 30, 2017: Orthopedics
https://www.readbyqxmd.com/read/29191118/spondylolisthesis-identified-using-ultrasound-imaging
#11
George J Beneck, Andrea N Gard, Kimberly A Fodran
57-year-old woman was recruited for a research study of muscle activation in persons with low back pain. She described a progressive worsening of left lower lumbar pain, which began 5 years prior without any precipitating incident, and intermittent pain at the left gluteal fold (diagnosed as a proximal hamstring tear 2 years prior). Ultrasound revealed marked anterior displacement of the L3-4 and L4-5 facet joints. The subject was recommended for a radiograph using a lateral recumbent view, which demonstrated a grade II spondylolisthesis...
December 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29151008/suture-anchor-repair-of-complete-proximal-hamstring-ruptures-a-cadaveric-biomechanical-evaluation
#12
(no author information available yet)
No abstract text is available yet for this article.
December 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/29145673/imaging-characteristics-predict-operative-difficulty-mobilizing-the-sciatic-nerve-for-proximal-hamstring-repair
#13
Thomas J Wilson, B Matthew Howe, Robert J Spinner, Aaron J Krych
BACKGROUND: Repair of proximal hamstring avulsions requires mobilization of the sciatic nerve away from the tendon stump, which can be achieved with varying difficulty depending on the degree of scar formation and adherence. Predicting when a scarred, adherent, difficult-to-mobilize nerve will be encountered has been difficult. OBJECTIVE: To identify clinical and/or radiological factors predictive of a difficult intraoperative dissection of the sciatic nerve during proximal hamstring repair...
November 14, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29143379/region-dependent-hamstrings-activity-in-nordic-hamstring-exercise-and-stiff-leg-deadlift-defined-with-high-density-emg
#14
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/29121248/fusion-of-positron-emission-tomography-computed-tomography-with-magnetic-resonance-imaging-reveals-hamstring-peritendonitis-in-polymyalgia-rheumatica
#15
Claire E Owen, Aurora M T Poon, Sze Ting Lee, Lee Pheng Yap, Richard B Zwar, Christine M McMenamin, Simon K L Lam, David F L Liew, Kunthi Pathmaraj, Andrew Kemp, Andrew M Scott, Russell R C Buchanan
Objectives: To characterize 18F-fluorodeoxyglucose (18F-FDG) uptake on whole-body PET/CT in PMR, and identify its precise anatomic correlate using MRI. Methods: Patients with newly diagnosed PMR according to the 2012 EULAR/ACR classification criteria were prospectively recruited. Participants with GCA were excluded. A whole-body 18F-FDG PET/CT scan was performed in all untreated patients. Qualitative and semiquantitative [standardized uptake value maximum (SUVmax)] scoring of abnormal 18F-FDG uptake was undertaken...
November 7, 2017: Rheumatology
https://www.readbyqxmd.com/read/29114628/femoral-tunnel-positioning-in-anterior-cruciate-ligament-reconstruction-anteromedial-portal-versus-transtibial-technique-a-randomized-clinical-trial
#16
Michele Venosa, Marco Delcogliano, Roberto Padua, Federica Alviti, Antonio Delcogliano
Purpose  The purpose of this study was to investigate, through three-dimensional computed tomography (3D-CT), the accuracy of femoral tunnel positioning in patients undergoing anterior cruciate ligament (ACL) reconstruction, comparing transtibial (TT) and anteromedial (AM) techniques. Methods  We evaluated postoperative 3D-CT scans of 26 patients treated with ACL reconstruction with hamstrings autograft using a low accessory AM portal technique and 26 treated with the TT technique. The position of the femoral tunnel center was measured with the quadrant method...
March 2017: Joints
https://www.readbyqxmd.com/read/29102430/involvement-of-pelvic-girdle-and-proximal-leg-muscles-in-early-oculopharyngeal-muscular-dystrophy
#17
B M van der Sluijs, S Lassche, G J Knuiman, B Kusters, A Heerschap, M Hopman, T H Schreuder, B G M van Engelen, N C Voermans
Although limb girdle weakness is not part of the major diagnostic criteria of oculopharyngeal muscular dystrophy (OPMD), it has frequently been observed in the Dutch and other OPMD cohorts. In the Dutch cohort, this might be related to the relatively old age or the severity of the genetic defect. This patient-control study (14 OPMD patients and 12 controls) investigated the involvement of limb girdle muscles with a multidimensional approach in early OPMD. We assessed functional abilities, disease impact, physical activity, muscle strength, histopathology and fatty infiltration using questionnaires, actometer, functional tests, manual and quantitative muscle testing, muscle biopsy and muscle MRI...
September 28, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29030457/adding-quantitative-muscle-mri-to-the-fshd-clinical-trial-toolbox
#18
Karlien Mul, Sanne C C Vincenten, Nicol C Voermans, Richard J L F Lemmers, Patrick J van der Vliet, Silvère M van der Maarel, George W Padberg, Corinne G C Horlings, Baziel G M van Engelen
OBJECTIVE: To add quantitative muscle MRI to the clinical trial toolbox for facioscapulohumeral muscular dystrophy (FSHD) by correlating it to clinical outcome measures in a large cohort of genetically and clinically well-characterized patients with FSHD comprising the entire clinical spectrum. METHODS: Quantitative MRI scans of leg muscles of 140 patients with FSHD1 and FSHD2 were assessed for fatty infiltration and TIRM hyperintensities and were correlated to multiple clinical outcome measures...
October 13, 2017: Neurology
https://www.readbyqxmd.com/read/29023278/surgical-approach-impacts-posterior-femoral-cutaneous-nerve-outcomes-after-proximal-hamstring-repair
#19
Thomas J Wilson, Robert J Spinner, Aaron J Krych
OBJECTIVE: The goal of this study was to characterize the risk of intraoperative injury to the posterior femoral cutaneous nerve and to evaluate potential risk factors for injury during surgical repair of proximal hamstring injuries. DESIGN: Retrospective cohort study. SETTING: Single tertiary referral center. PATIENTS: The cohort consisted of all patients presenting to a single institution with a proximal hamstring avulsion injury who were managed with surgical repair between January 1, 2000 and August 1, 2016...
October 6, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29016194/outcomes-after-operative-and-nonoperative-treatment-of-proximal-hamstring-avulsions-a-systematic-review-and-meta-analysis
#20
Blake M Bodendorfer, Andrew J Curley, Joshua A Kotler, James M Ryan, Neha S Jejurikar, Anagha Kumar, William F Postma
BACKGROUND: No meta-analysis has compared outcomes of operative and nonoperative proximal hamstring avulsion treatment. PURPOSE: To compare outcomes of operative and nonoperative proximal hamstring avulsion treatment, including acute, chronic, partial, and complete repairs. STUDY DESIGN: Meta-analysis. METHODS: PubMed, CINAHL, SPORTdiscus, Cochrane Library, EMBASE, and Web of Science were searched up to July 2016. Three authors screened the studies and performed quality assessment using criteria from the Methodologic Index for Nonrandomized Studies...
October 1, 2017: American Journal of Sports Medicine
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