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Posterior knee pain

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https://www.readbyqxmd.com/read/27904221/what-have-we-learned-from-100-success-of-press-fit-condylar-rotating-platform-posterior-stabilized-knees-a-5-10-years-followup-by-a-nondesigner
#1
Shrinand V Vaidya, Siddharth Virani, Rajendra Phunde, Abhishek Mahajan
BACKGROUND: Total joint arthroplasties of the hip and knee represent a remarkable feat of modern medicine in terms of reducing pain and restoring function to millions of patients afflicted with severe arthritis. Oftentimes, the performance and longevity of new implants and devices are based on limited data. This is the first study by a non-designer on the press fit condylar rotating platform posterior stabilized (PFC-RP-PS) design with 100' success. This has a relevance, vis-á -vis bias that one may have in terms of reproducibility of technique and funding from the manufacturer...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27881382/early-changes-in-knee-center-of-rotation-during-walking-after-anterior-cruciate-ligament-reconstruction-correlate-with-later-changes-in-patient-reported-outcomes
#2
Matthew R Titchenal, Constance R Chu, Jennifer C Erhart-Hledik, Thomas P Andriacchi
BACKGROUND: Altered knee kinematics after anterior cruciate ligament injury and reconstruction (ACLR) have been implicated in the development of posttraumatic osteoarthritis (PTOA), leading to poor long-term clinical outcomes. PURPOSE: This study was conducted to determine (1) whether the average knee center of rotation (KCOR), a multidimensional metric of knee kinematics, of the ACL-reconstructed knee during walking differs from that of the uninjured contralateral knee; (2) whether KCOR changes between 2 and 4 years after surgery; and (3) whether early KCOR changes predict patient-reported outcomes 8 years after ACLR...
November 23, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27871591/continuous-intra-articular-local-anesthetic-drug-instillation-versus-discontinuous-sciatic-nerve-block-after-total-knee-arthroplasty
#3
Johannes Cip, Hedwig Erb-Linzmeier, Peter Stadlbauer, Christian Bach, Arno Martin, Reinhard Germann
STUDY OBJECTIVE: Sciatic nerve block (SNB) is commonly used as adjunct to femoralis nerve block (FNB) to achieve high-quality pain relief after total knee arthroplasty (TKA). However, this combination is associated with considerable muscle weakness, foot drop and surgically related nerve injuries may be masked. The purpose of this study was to assess whether low risk continuous intra-articular anesthetic drug instillation is an adequate alternative to SNB when adding to FNB after TKA...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27858240/return-of-motor-evoked-potentials-after-knee-flexion-in-the-setting-of-high-grade-spondylolisthesis
#4
Justin Tilan, Lindsay M Andras, Mark D Krieger, David L Skaggs
PURPOSE: To present a case of loss of motor-evoked potentials (MEPs) to the left foot in the supine position after a partial reduction and instrumented fusion from L4 to pelvis which was managed successfully without revision or removal of implants. METHODS: We report a patient with high-grade spondylolisthesis who demonstrated loss of motor-evoked potentials after posterior spinal fusion and transfer to supine position. The patient's knees were flexed to 90° and signals were immediately restored...
November 17, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27790556/efficacy-of-sciatic-nerve-block-for-pain-management-in-below-knee-orthopaedic-surgery
#5
Subhadra Arun Sinha, Sandeep Champalal Mutha, Deepak Sadashiv Phalgune
INTRODUCTION: Perioperative pain management is an integral part of anaesthesia and patients are most satisfied if there is minimal or no pain after surgery. Sciatic nerve block provides postoperative pain relief after below knee surgery and knee surgery. Many studies with different approaches for sciatic nerve block have been conducted to demonstrate the efficacy of sciatic nerve block with different local anaesthetic drugs over the past decade. AIM: To study the efficacy of single-shot sciatic nerve block for postoperative pain management in below knee orthopaedic surgery...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27789336/differential-plantaris-achilles-tendon-motion-a-sonographic-and-cadaveric-investigation
#6
Jay Smith, Håkan Alfredson, Lorenzo Masci, Jacob L Sellon, Charonn D Woods
OBJECTIVE: To determine whether differential, multidirectional motion exists between the plantaris tendon (PT) and Achilles tendon (AT) as documented by dynamic ultrasound (US) and post-dissection examination in an unembalmed cadaveric model. DESIGN: Prospective, cadaveric laboratory investigation. SETTING: Procedural skills laboratory in a tertiary medical center. SUBJECTS: 20 unembalmed knee-ankle-foot specimens (9 right, 11 left) obtained from 6 male and 10 female donors ages 55-96 years (mean 80 years) with BMI's of 14...
October 24, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27761625/non-operative-management-of-medial-meniscus-posterior-horn-root-tears-is-associated-with-worsening-arthritis-and-poor-clinical-outcome-at-5-year-follow-up
#7
Aaron J Krych, Patrick J Reardon, Nick R Johnson, Rohith Mohan, Logan Peter, Bruce A Levy, Michael J Stuart
PURPOSE: Medial meniscus posterior root tears (MMPRTs) are a significant source of pain and dysfunction, but little is known about the natural history and outcome and for non-operative management of these lesions. The purpose of this study was to evaluate (1) the mid-term clinical and radiographic outcomes of non-operative treatment of MMPRTs and (2) risk factors for worse outcomes. METHODS: A retrospective review was performed for patients with symptomatic, unrepaired MMPRTs and a minimum 2-year follow-up for IKDC and Tegner outcome scores...
October 19, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27756267/treatment-of-baker-cyst-by-using-open-posterior-cystectomy-and-supine-arthroscopy-on-recalcitrant-cases-103-knees
#8
M Saylik, K Gökkuş
BACKGROUND: Associated joint disorders with popliteal cysts were stated approximately between the ranges of 41-83 % in all reported cases. Combined treatment strategies that eliminate intra-articular pathologies and cyst- associated valve mechanisms are thought to be a good option in treatment of the disease. In this study, our main objective is to present clinical results of our combined treatment results, which includes posterior cyst excision with supine arthroscopic intervention, targeting intra-articular pathologies on recalcitrant cases...
October 18, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27755640/relationship-between-posterior-inferior-tibial-slope-and-bilateral-noncontact-acl-injury
#9
Steven T Hendrix, Austin M Barrett, Bopha Chrea, William H Replogle, Josie M Hydrick, Gene R Barrett
Is there a correlation between increased posterior-inferior tibial slope angle and noncontact anterior cruciate ligament (ACL) injury? Does increasing the posterior-inferior tibial slope angle increase the risk of bilateral ACL injury? A computerized relational database (Access 2007; Microsoft Inc, Redmond, Washington) was used to conduct a retrospective review of patients undergoing bilateral or unilateral ACL reconstruction surgery or treatment by a single surgeon between 1995 and 2013. Included in the study were patients with bilateral and unilateral ACL injuries and patellofemoral pain syndrome with no associated ACL deficiency...
October 18, 2016: Orthopedics
https://www.readbyqxmd.com/read/27743204/the-cranial-sagittal-vertical-axis-crsva-is-a-better-radiographic-measure-to-predict-clinical-outcomes-in-adult-spinal-deformity-surgery-than-the-c7-sva-a-monocentric-study
#10
Yong-Chan Kim, Lawrence G Lenke, Seon-Jong Lee, Jeffrey L Gum, Sirichai Wilartratsami, Kathy M Blanke
PURPOSE: Our study aimed to confirm the correlation between the Cranial Sagittal Vertical Axis (CrSVA) and patient-reported outcomes and to compare clinical correlation between CrSVA and C7 SVA in adult spinal deformity (ASD) patients. METHODS: 108 consecutive ASD patients were evaluated using the EOS(®) 2D/3D radio-imaging device. A vertical plumb line from the cranial center was utilized to measure the distance to the posterior corner of S1 (CrSVA-S), and to the centers of the hip (CrSVA-H), the knee (CrSVA-K), and ankle (CrSVA-A), as well as measuring the standard C7 SVA...
October 14, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27742158/extension-deficit-after-anterior-cruciate-ligament-reconstruction-is-arthroscopic-posterior-release-a-safe-and-effective-procedure
#11
Guido Wierer, Armin Runer, Peter Gföller, Christian Fink, Christian Hoser
BACKGROUND: Postoperative extension deficits following anterior cruciate ligament (ACL) reconstruction can cause major limitation during daily life. The purpose of this study was to evaluate the efficiency of an all-arthroscopic approach and posterior capsule release for the treatment of persistent knee extension deficits following ACL reconstruction. METHODS: Between 2009 and 2013 a total of 10 patients with knee flexion contractures after ACL reconstruction were assessed following an all-arthroscopic approach and posterior capsulotomy...
October 12, 2016: Knee
https://www.readbyqxmd.com/read/27726755/us-of-the-knee-scanning-techniques-pitfalls-and-pathologic-conditions
#12
Timothy I Alves, Gandikota Girish, Monica Kalume Brigido, Jon A Jacobson
Pain and other disorders of the knee are a common presenting complaint in the ambulatory setting. Although the cornerstones of imaging evaluation of the knee are radiographs and magnetic resonance (MR) imaging, ultrasonography (US) is less expensive than MR imaging, easily available, and of comparable accuracy in the evaluation of certain pathologic conditions of the knee. The benefits of US include portability, low cost, high spatial resolution, dynamic imaging, and ability to guide percutaneous interventions when indicated...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27720514/do-changes-in-patellofemoral-joint-offset-lead-to-adverse-outcomes-in-total-knee-arthroplasty-with-patellar-resurfacing-a-radiographic-review
#13
Jacob Matz, James L Howard, David J Morden, Steven J MacDonald, Matthew G Teeter, Brent A Lanting
BACKGROUND: Patellofemoral joint biomechanics contribute to anterior knee pain, instability, and dysfunction following total knee arthroplasty (TKA). Information about specific factors leading to anterior knee pain and dysfunction is currently limited. Changes in patellofemoral joint offset (PFO) refers to a mismatch between the preoperative and postoperative anteroposterior geometry of the patellofemoral joint. It remains unclear whether these changes lead to adverse outcomes in TKA...
September 14, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27717976/coexisting-sarcoidal-granulomatous-inflammation-and-diffuse-tenosynovial-giant-cell-tumor-of-the-knee-after-a-total-knee-replacement-a-case-report
#14
Yaxia Zhang, Michael Joyce, Jean Schils, Thomas W Bauer
Sarcoidosis is a systemic inflammatory disorder characterized by non-caseating granulomas, predominantly involving lung, mediastinal lymph nodes and other organs. Synovium involvement is infrequent, and as far as we know, involvement of a periprosthetic membrane has not been reported in the English literature. Intra-articular diffuse tenosynovial giant cell tumor ("conventional diffuse pigmented villonodular synovitis") is an uncommon, locally aggressive neoplasm with few previous case reports in which it arose in periprosthetic tissues after knee arthroplasty...
October 7, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27671286/popliteus-impingement-after-tka-may-occur-with-well-sized-prostheses
#15
Michel P Bonnin, Arnoud de Kok, Matthias Verstraete, Tom Van Hoof, Catherine Van der Straten, Mo Saffarini, Jan Victor
PURPOSE: To determine the mechanisms and extents of popliteus impingements before and after TKA and to investigate the influence of implant sizing. The hypotheses were that (1) popliteus impingements after TKA may occur at both the tibia and the femur, and (2) even with an apparently well-sized prosthesis, popliteal tracking during knee flexion is modified compared to the preoperative situation. METHODS: The location of the popliteus in three cadaver knees was measured using computed tomography, before and after implantation of plastic TKA replicas, by injecting the tendon with radiopaque liquid...
September 26, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27660600/calcium-pyrophosphate-dihydrate-crystal-deposition-disease-simulating-osteoarthrosis-of-the-knee-a-case-report
#16
Stefanie A Pawelek, Jennifer D Illes, John A Taylor
OBJECTIVE: The purpose of this case report is to describe a case where calcium pyrophosphate dehydrate crystal deposition disease (CPPD) simulated osteoarthritis of the knee. CLINICAL FEATURES: A 78-year-old woman had a 2-week history of severe right knee pain accompanied by mild swelling. The onset was sudden and did not involve a history of trauma or previous injury to the right knee. Inspection and palpation revealed pain along the medial joint line and marked difficulty ambulating...
September 2016: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/27625998/comparison-of-indirect-mr-arthrography-with-conventional-mri-in-the-diagnosis-of-knee-pathologies-in-patients-with-knee-pain
#17
Ali Babaei Jandaghi, Mohsen Mardani-Kivi, Ahmadreza Mirbolook, Mohammad Kazem Emami-Meybodi, Solmaz Mohammadzadeh, Maral Farahmand
BACKGROUND: Knee pain is a common problem in the general population. In order to determine the extent of the injury and the appropriate treatment, MRI provides the most accurate imaging method. This may be done through conventional MRI techniques or by injecting a contrast material (MR arthrography). OBJECTIVES: The purpose of this study was to compare the diagnostic value of these two methods. PATIENTS AND METHODS: The study involved the diagnostic evaluation on 60 patients with knee pain who received treatment over the course of a one-year period...
May 2016: Trauma Monthly
https://www.readbyqxmd.com/read/27614388/does-release-of-the-superficial-medial-collateral-ligament-result-in-clinically-harmful-effects-after-the-fixation-of-medial-meniscus-posterior-root-tears
#18
Kyu Sung Chung, Jeong Ku Ha, Ho Jong Ra, Jin Goo Kim
PURPOSE: To investigate pain and tenderness, stress testing, clinical outcome scores, complications, and operation time at 24 months and magnetic resonance imaging (MRI) analysis at 12 months after the release of the distal attachment of the superficial medial collateral ligament (sMCL) during medial meniscus posterior root tear (MMPRT) fixation. METHODS: Patients who received MMPRT fixation with a follow-up of at least 2 years were included. During fixation, the release of the distal attachment of the sMCL on the proximal tibia was performed to improve visualization and provide sufficient working space...
September 7, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27612911/tuberculosis-is-a-mimicker-of-jia-a-rare-case-report
#19
M A Shahin, M I Sultan, M J Alam, A Saeed, A K Azad, M R Choudhury
Cystic tuberculosis of the bone is a rare form of tuberculosis (TB). The condition presents like Juvenile idiopathic arthritis (JIA) of children. In children, the lesions symmetrically involve the peripheral skeleton, which are less sclerotic than adults. A case report is presented here where the patient presented with i) the extensive involvement of bones with cystic lesion, ii) Hand & feet involvement with multiple bony exostosis iii) Synovial swelling of multiple joints and 4) fever for 6 months. Swelling of the joints was disproportionately greater than pain...
July 2016: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/27600300/clinical-and-radiographic-results-of-attune-and-pfc-sigma-knee-designs-at-2-year-follow-up-a-prospective-matched-pair-analysis
#20
Chitranjan S Ranawat, Peter B White, Sarah West, Amar S Ranawat
BACKGROUND: Anterior knee pain (AKP) and/or crepitation are important causes of dissatisfaction after total knee arthroplasty (TKA). Aim of this prospective, matched-pair study was to compare 2 different designs of patellofemoral (ie, trochlear groove) TKA. The Attune knee has an anatomic trochlear groove with a medialized dome patellar component vs the PFC Sigma with a single radius trochlear groove with a domed shaped patella. METHODS: Between January 2010 and December 2014, 100 consecutive Attune TKAs were matched to 100 PFC Sigma TKAs based on age, gender, side, and body mass index...
August 9, 2016: Journal of Arthroplasty
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