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https://www.readbyqxmd.com/read/28355767/-effects-of-reconstruction-with-unicondylar-osteoarticular-allografts-with-or-without-prosthesis-for-bone-tumors-around-knee-joint
#1
Y S Xue, J Fu, Z Guo, Z Wang, Y J Pei, L L Dang, H B Fan
Objective: To investigate the survival rate, function outcomes, and complications after using unicondylar osteoarticular allografts with or without prosthesis to reconstruct the knee joint for tumors located in distal femoral or proximal tibial uni-condyle. Methods: Twenty-two patients who underwent unicondylar osteoarticular allografts with or without prosthesis composite reconstructions from January 2007 to December 2015 in Department of Orthopaedic Surgery of Xi Jing Hospital, the Fourth Military Medical University were retrospectively reviewed...
April 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28224608/inter-and-intrarater-clinician-agreement-on-joint-motion-patterns-during-gait-in-children-with-cerebral-palsy
#2
Angela Nieuwenhuys, Eirini Papageorgiou, Guy Molenaers, Davide Monari, Tinne de Laet, Kaat Desloovere
AIM: This study aimed to quantify the inter- and intrarater clinician agreement on joint motion patterns in children with spastic cerebral palsy (CP), which were recently specified by a Delphi consensus study. It also examined whether experience with three-dimensional gait analysis (3DGA) is a prerequisite for using the patterns. METHOD: The experimental group consisted of 82 patients with CP (57 males, 25 females; uni-/bilateral CP [n=27/55]; Gross Motor Function Classification System levels I to III; mean age 9y 5mo [range 4y-18y])...
February 22, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28116282/autologous-bone-grafting-and-revision-plating-in-a-case-of-persistent-high-tibial-osteotomy-non-union
#3
Tan Shi Ming, Wong Merng Koon
INTRODUCTION: Uni-compartmental knee arthritis may be treated with several surgical options including uni-compartmental knee arthroplasty, total knee arthroplasty and high tibial osteotomy. Non-union is a well-established and common complication that may arise from the latter option and few reports have shown successful treatment of persistent non-union of high tibial osteotomy. CASE PRESENTATION: We present a case of persistent non-union after high tibial osteotomy treated with autologous iliac crest bone grafting and revision plating...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/27900270/three-dimensional-reconstructed-magnetic-resonance-scans-accuracy-in-identifying-and-defining-knee-meniscal-tears
#4
Neil Kruger, Eugene McNally, Sami Al-Ali, Raj Rout, Jonathan L Rees, Andrew J Price
AIM: To determine whether three-dimensional (3D) reconstruction from conventional magnetic resonance imaging (MRI) is able to accurately detect a meniscal tear, and define the configuration. METHODS: Thirty-three patients' 3T MRI scan data were collected and sagittal uni-planar 3D reconstructions performed from the preoperative MRI. There were 24 meniscal tears in 24 patients, and nine controls. All patients had arthroscopic corroboration of MRI findings. Two independent observers prospectively reported on all 33 reconstructions...
November 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/27860135/joint-lavage-followed-by-viscosupplementation-and-triamcinolone-in-patients-with-severe-haemophilic-arthropathy-objective-functional-results
#5
M U Rezende, F R Andrusaitis, R T Silva, E Okazaki, J D A Carneiro, G C Campos, A F Pailo, R Frucchi, T Pasqualin, P R Villaça
INTRODUCTION: Viscosupplementation can improve function in haemophilia patients. Viscosupplementation results can be improved by prior joint lavage and triamcinolone administration. AIM: To objectively assess whether viscosupplementation and associated triamcinolone use in patients with severe haemophilic arthropathy following joint lavage improves force and balance and reduces bleeding events. METHODS: Fourteen patients with haemophilic knee arthritis with and without the involvement of other joints underwent joint lavage and subsequent injections of Hylan G-F20 and triamcinolone into all affected joints...
March 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/27724861/morphologic-analysis-of-the-proximal-tibia-after-open-wedge-high-tibial-osteotomy-for-proper-plate-fitting
#6
Oui Sik Yoo, Yong Seuk Lee, Myung Chul Lee, Jae Hong Park, Jae Won Kim, Doo Hoon Sun
BACKGROUND: After open wedge high tibial osteotomy (OWHTO), the proximal fragment resembles the anatomy of the proximal tibia that is aligned in the anterior-posterior direction and the distal fragment resembles the anatomy of the mid shaft that is aligned in the proximal-distal direction. In addition, the medial portion of the proximal fragment becomes aligned medially and the medial portion of the distal fragment, laterally, depending on the magnitude of the posterior opening gap. Therefore, there would be a mismatch between the post-correction bony surface and the previous pre-contoured plate geometry...
October 10, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27639405/predictors-of-self-reported-knee-instability-among-patients-with-knee-osteoarthritis-results-of-the-amsterdam-osteoarthritis-cohort
#7
Martin van der Esch, Marike van der Leeden, Leo D Roorda, Willem F Lems, Joost Dekker
The aims of the study were to (i) determine the prevalence and course of self-reported knee instability at 2-year follow-up and (ii) identify factors predictive of retention of self-reported knee instability among patients with established knee osteoarthritis (OA). Among 201 patients from the Amsterdam Osteoarthritis (AMS-OA) cohort, demographic characteristics, self-reported knee instability, muscle strength, proprioception, pain, and physical function were assessed at baseline and at 2 years. Exercise over the past 2 years was assessed by evaluating the medical files...
December 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27159285/strain-response-of-the-anterior-cruciate-ligament-to-uniplanar-and-multiplanar-loads-during-simulated-landings-implications-for-injury-mechanism
#8
Ata M Kiapour, Constantine K Demetropoulos, Ali Kiapour, Carmen E Quatman, Samuel C Wordeman, Vijay K Goel, Timothy E Hewett
BACKGROUND: Despite basic characterization of the loading factors that strain the anterior cruciate ligament (ACL), the interrelationship(s) and additive nature of these loads that occur during noncontact ACL injuries remain incompletely characterized. HYPOTHESIS: In the presence of an impulsive axial compression, simulating vertical ground-reaction force during landing (1) both knee abduction and internal tibial rotation moments would result in increased peak ACL strain, and (2) a combined multiplanar loading condition, including both knee abduction and internal tibial rotation moments, would increase the peak ACL strain to levels greater than those under uniplanar loading modes alone...
August 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27146667/the-speedcourt-system-in-rehabilitation-after-reconstruction-surgery-of-the-anterior-cruciate-ligament-acl
#9
RANDOMIZED CONTROLLED TRIAL
Thomas Bartels, Stefan Proeger, Kay Brehme, Martin Pyschik, Karl-Stefan Delank, Stephan Schulze, René Schwesig, Georg Fieseler
INTRODUCTION: This study aimed at evaluating and finding the advantages of a program with unexpected disturbances (reaction time beyond 200 ms) in the late rehabilitation (5 months) after ACL-surgery compared to current sensomotoric based concepts. MATERIALS AND METHODS: 50 athletic patients (14 females, 36 males, age: 32.7 ± 10.0 years) were randomized and followed either a new training with the SpeedCourt (28 athletes) or underwent a regular stabilization program (22 athletes)...
July 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27052369/patella-tracking-and-patella-contact-pressure-in-modular-patellofemoral-arthroplasty-a-biomechanical-in-vitro-analysis
#10
Tilman Calliess, Max Ettinger, Ssuheib Schado, Christoph Becher, Christof Hurschler, Sven Ostermeier
INTRODUCTION: In the recent years modular partial knee prosthesis with the opportunity to combine unicompartmental tibiofemoral (UKA) and patellofemoral prosthesis (PFJ) were introduced to the clinics. To date, little is known about the biomechanics of these bi-cruciate retaining prosthetic designs. Aim of this study was to evaluate the influence of a PFJ in bicompartmental arthroplasty (UKA + PFJ) on patella tracking and retropatella pressure distribution. METHODS: A dynamic in vitro knee kinemator simulating an isokinetic extension cycle of the knee was used on eight knee specimen...
June 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27025869/-total-and-unicompartmental-knee-replacement-patient-specific-instrumentation
#11
G Köster, C Biró
BACKGROUND: The objective of patient-specific instrumentation (PSI Zimmer®) technology is to optimize positioning and selection of components as well as surgical procedure in uni- and bicompartimental knee replacement. The article contains a description of the planning and surgical technique and evaluates the method based on own results and literature. METHODS: Using MRI or CT scans a virtual 3D model of the joint is created in order to simulate and plan the implant positioning...
April 2016: Der Orthopäde
https://www.readbyqxmd.com/read/26899608/effects-of-dexmedetomidine-on-serum-interleukin-6-hemodynamic-stability-and-postoperative-pain-relief-in-elderly-patients-under-spinal-anesthesia
#12
RANDOMIZED CONTROLLED TRIAL
So Hui Yun, Jong Cook Park, Sang Rim Kim, Yun Suk Choi
The beneficial effects of dexmedetomidine (DEX) have not been extensively investigated in elderly patients receiving spinal anesthesia. This study evaluated the effects of intravenous DEX infusion on stress and hemodynamic response, as well as on postoperative analgesia in elderly patients undergoing total knee arthroplasty (TKA). We randomly allocated 45 adult patients to 3 patient groups (n=15 each): uni-saline group patients underwent unilateral TKA with saline administration, uni-DEX group patients underwent unilateral TKA with DEX administration, and bilateral-DEX group patients underwent bilateral TKA with DEX administration...
2016: Acta Medica Okayama
https://www.readbyqxmd.com/read/26790794/complications-resulting-from-tracker-pin-sites-in-computer-navigated-knee-replacement-surgery
#13
Anna Thomas, Gopalakrishna Pemmaraju, Gurpreet Nagra, James Bassett, Shreeram Deshpande
Intra-osseous pin sites used in Computer Navigated knee Arthroplasty are known to cause complications including infection, neurovascular injury, thermal necrosis and peri-prosthetic fracture. Many studies have looked at ways of reducing these risks to improve results in computer-navigated surgery. We present our complication rates and techniques used to reduce complications in a retrospective study of 321 patients performed by a single surgeon in between 2009 and 2013. One patient was identified with a superficial pin site infection...
December 2015: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/26611899/infection-recurrence-factors-in-one-and-two-stage-total-knee-prosthesis-exchanges
#14
MULTICENTER STUDY
P Massin, T Delory, L Lhotellier, G Pasquier, O Roche, A Cazenave, C Estellat, J Y Jenny
PURPOSE: Revision of infected total knee replacements (TKR) is usually delayed for a period in which the joint space is filled with an antibiotic-loaded acrylic spacer. In contrast, one-stage re-implantation supposes immediate re-implantation. Formal comparisons between the two methods are scarce. A retrospective multi-centre study was conducted to investigate the effects of surgery type (one-stage vs. two-stage) on cure rates. It was hypothesised that this parameter would not influence the results...
October 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/26604609/a-report-of-nonunion-at-medial-wedge-high-tibial-osteotomy-site-and-its-management
#15
Sanjay Agarwala, Anshul Sobti, Pranshu Agrawal
High tibial osteotomy (HTO) is an accepted treatment option for correcting deformities and reducing pain in the treatment of uni-compartment osteoarthritis of the knee. The principle is to redistribute the weight-bearing load. Medial open wedge HTO (MOWHTO) has gained popularity over lateral closed wedge osteotomy due to its decreased incidence of complications. MOWHTO surgical techniques have many variations in fixation techniques and in the use of bone grafts or bone substitute augmentation. In spite of the existing guidelines, there are no clear indications of grafting at the osteotomy site...
August 2015: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/26557580/management-of-osteoarthritis-knee-by-graduated-open-wedge-high-tibial-osteotomy-in-40-60-years-age-group-using-limb-reconstruction-system-a-clinical-study
#16
Rajesh Kapila, Pawan Kumar Sharma, Ankush Chugh, Randhir Singh
BACKGROUND: With i ncrease in elderly population, osteoarthritis has become major concern nowadays. Knee joint is most commonly affected joint. A number of methods have been developed in the last few years which help in treating the osteoarthritis knee, which includes non pharmacological, pharmacological and surgical methods. Among the most promising techniques with renewed interest for osteoarthritis knee with deformity is the use of high tibial osteotomy. Uni-compartmental osteoarthritis knee with deformity especially in relatively younger age group (less than 60 years) constitutes the main indication...
October 2015: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/26430081/long-term-results-of-compartmental-arthroplasties-of-the-knee-long-term-results-of-partial-knee-arthroplasty
#17
REVIEW
S Parratte, M Ollivier, A Lunebourg, M P Abdel, J-N Argenson
Partial knee arthroplasty (PKA), either medial or lateral unicompartmental knee artroplasty (UKA) or patellofemoral arthroplasty (PFA) are a good option in suitable patients and have the advantages of reduced operative trauma, preservation of both cruciate ligaments and bone stock, and restoration of normal kinematics within the knee joint. However, questions remain concerning long-term survival. The goal of this review article was to present the long-term results of medial and lateral UKA, PFA and combined compartmental arthroplasty for multicompartmental disease...
October 2015: Bone & Joint Journal
https://www.readbyqxmd.com/read/26203735/a-biomechanical-comparison-of-the-long-snap-in-football-between-high-school-and-university-football-players
#18
COMPARATIVE STUDY
Michael G Chizewski, Marion J L Alexander
Limited previous research was located that examined the technique of the long snap in football. The purpose of the study was to compare the joint movements, joint velocities, and body positions used to perform fast and accurate long snaps in high school (HS) and university (UNI) athletes. Ten HS and 10 UNI subjects were recruited for filming, each performing 10 snaps at a target with the fastest and most accurate trial being selected for subject analysis. Eighty-three variables were measured using Dartfish Team Pro 4...
August 2015: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26151039/bi-unicompartmental-and-combined-uni-plus-patellofemoral-replacement-indications-and-surgical-technique
#19
Sergio Romagnoli, Matteo Marullo, Michele Massaro, Enis Rustemi, Federico D'Amario, Michele Corbella
The anatomy and orientation of the condyles and the trochlea are not standard, but related to morphotype, gender and race. Consequently, the extreme variability in their dimension, and in the distance and angle between the axis of the condyles and of the trochlea, often necessitates a "custom-made" replacement. This may be achieved through the use of small implants. Bicompartmental osteoarthritis with intact ligaments should be addressed with bi-unicompartmental (bi-UKR) or UKR plus patellofemoral replacement (PFR)...
January 2015: Joints
https://www.readbyqxmd.com/read/26141537/pelvic-movement-strategies-and-leg-extension-power-in-patients-with-end-stage-medial-compartment-knee-osteoarthritis-a-cross-sectional-study
#20
Signe Kierkegaard, Peter Bo Jørgensen, Ulrik Dalgas, Kjeld Søballe, Inger Mechlenburg
INTRODUCTION: During movement tasks, patients with medial compartment knee osteoarthritis use compensatory strategies to minimise the joint load of the affected leg. Movement strategies of the knees and trunk have been investigated, but less is known about movement strategies of the pelvis during advancing functional tasks, and how these strategies are associated with leg extension power. The aim of the study was to investigate pelvic movement strategies and leg extension power in patients with end-stage medial compartment knee osteoarthritis compared with controls...
September 2015: Archives of Orthopaedic and Trauma Surgery
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