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https://www.readbyqxmd.com/read/29691761/open-tibial-inlay-pcl-reconstruction-surgical-technique-and-clinical-outcomes
#1
REVIEW
Evan E Vellios, Kristofer J Jones, David R McAllister
PURPOSE OF REVIEW: To review the current literature on clinical outcomes following open tibial inlay posterior cruciate ligament (PCL) reconstruction and provide the reader with a detailed description of the author's preferred surgical technique. RECENT FINDINGS: Despite earlier biomechanical studies which demonstrated superiority of the PCL inlay technique when compared to transtibial techniques, recent longitudinal cohort studies have shown no significant differences in clinical or functional outcomes at 10-year follow-up...
April 24, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29691176/anthropometric-measurements-of-knee-joints-in-the-hispanic-population
#2
Colin A McNamara, Amer A Hanano, Jesus M Villa, Gustavo M Huaman, Preetesh D Patel, Juan C Suarez
BACKGROUND: Total knee arthroplasty (TKA) systems provide a set of incrementally sized tibial and femoral components intended to accommodate most knee parameters. However, the most commonly used systems in the United States were developed using data from Caucasian patients which might not lead to the best fit in non-Caucasians. Therefore, we wanted to evaluate whether these TKA systems proportionally match femoral and tibial measurements in Hispanics. METHODS: All lower extremity magnetic resonance imaging performed at our institution between January 2007 and October 2015 were screened...
March 27, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29691172/revision-of-unicompartmental-knee-arthroplasty-to-total-knee-arthroplasty-is-it-as-good-as-a-primary-result
#3
Adolph V Lombardi, Mark T Kolich, Keith R Berend, Michael J Morris, David A Crawford, Joanne B Adams
BACKGROUND: Unicompartmental knee arthroplasty (UKA) is touted as a more conservative, bone- and tissue-sparing procedure than total knee arthroplasty (TKA). Similarly, revision of UKA to TKA is generally a simpler procedure than revision of TKA to TKA and can be accomplished with primary TKA components in most cases. The purpose of this study was to review a consecutive series of patients undergoing revision of failed UKA to TKA to determine if etiology is similar to that reported in recent literature and evaluate if the results align more with primary TKA vs revision of TKA to TKA...
March 17, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29690818/in-situ-popliteal-tibial-bypass-with-the-short-saphenous-vein-through-a-posterior-approach-for-limb-salvage
#4
Sosei Kuma, Kohichi Morisaki, Jin Okazaki, Shinsuke Mii
A 69-year-old female patient was admitted to our hospital with gangrene of her left first and second digits. Angiography showed a diffuse occlusive lesion from the external iliac artery to the crural arteries. Endovascular therapy to the external iliac artery, above-knee femoropopliteal bypass with a polytetrafluoroethylene graft, and popliteal-tibial bypass through a posterior approach with the short saphenous vein graft were performed in 3 stages because the length of the great saphenous vein that was suitable for grafting was insufficient...
January 1, 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29689931/review-and-clinal-variation-of-new-zealand-anabaxis-raffray-coleoptera-staphylinidae-pselaphinae-goniaceritae
#5
Jia-Wei Shen, Richard A B Leschen
The New Zealand members of the genus Anabaxis Raffray are revised to accommodate three species, including one new species: Anabaxis chathamensis sp. nov. A key and an illustrated catalogue to the described species from New Zealand and Australia are included. Lectotypes are designated for A. brevis Oke, A. electrica King, A. foveolata Broun, A. inusitata Blackburn, A. lunatica King, A. quinquefoveolata Raffray, and A. vagus Oke. The widespread New Zealand species A. foveolata exhibits an unusual form of clinal variation in sex-linked characters of the male legs...
February 21, 2018: Zootaxa
https://www.readbyqxmd.com/read/29689555/energy-metabolism-in-the-bone-is-associated-with-histomorphometric-changes-in-rats-with-hyperthyroidism
#6
Zhuoqing Hu, Minqun Du, Wenxiu Lai, Yanlong Liang, Qin Liu, Yilin Mo, Jiaxin Bei, Shuhui Li, Yajun Yang, Jinrong Xu, Liao Cui
BACKGROUND/AIMS: In this study we assessed histomorphometric changes induced by thyroxine (T4) in 3-month-old hyperthyroid male rats and examined whether the potential mechanism of these changes is related to bone changes. METHODS: Rats were classified as either hyperthyroid following administration of 250 µg/kg/day freshly prepared T4 by gavage for 2 months or euthyroid following administration of vehicle alone (n = 8 per group). We measured bone mineral density (BMD), bone biomechanical properties, and bone histomorphometric changes...
April 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29688959/arthroscopic-management-of-tibial-spine-avulsion-fractures-principles-and-techniques
#7
Eric J Strauss, Daniel James Kaplan, Maxwell E Weinberg, Jonathan Egol, Laith M Jazrawi
Tibial spine fractures are uncommon injuries affecting the insertion of the anterior cruciate ligament on the tibia. They typically occur in skeletally immature patients aged 8 to 14 years and result from hyperextension of the knee with a valgus or rotational force. Diagnosis is based on history, physical examination, and standard radiographs. The use of MRI can identify entrapped soft tissue that may prevent reduction. Open or arthroscopic repair is indicated in patients with partially displaced fractures (>5 mm) with one third to one half of the avulsed fragment elevated, in patients who have undergone unsuccessful nonsurgical reduction and long leg casting or bracing, and in patients with completely displaced fractures...
April 23, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29688749/surgical-treatment-with-closing-wedge-distal-femoral-osteotomy-for-recurrent-patellar-dislocation-with-genu-valgum
#8
Kyung Wook Nha, Yoonwon Ha, Seungmin Oh, Vivek P Nikumbha, Sae Kwang Kwon, Woo-Jin Shin, Byung Hoon Lee, Keun Bae Hong
BACKGROUND: Closing-wedge distal femoral osteotomy (CWDFO)-combined with medial reefing and lateral release, if necessary- has been used to treat recurrent patellar dislocation (RPD) with genu valgum. PURPOSE: To evaluate the clinical and radiologic outcomes of surgical treatment with CWDFO for treatment of RPD with genu valgum. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Fourteen consecutive patients (23 knees) with RPD and genu valgum were treated with CWDFO...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29687410/laser-led-phototherapy-on-the-repair-of-tibial-fracture-treated-with-wire-osteosynthesis-evaluated-by-raman-spectroscopy
#9
Antônio L B Pinheiro, Luiz G P Soares, Aline C P da Silva, Nicole R S Santos, Anna Paula L T da Silva, Bruno Luiz R C Neves, Amanda P Soares, Landulfo Silveira
The aim of the present study was to assess, by means of Raman spectroscopy, the repair of complete surgical tibial fractures fixed with wire osteosynthesis (WO) treated or not with infrared laser (λ780 nm) or infrared light emitting diode (LED) (λ850 ± 10 nm) lights, 142.8 J/cm2 per treatment, associated or not to the use of mineral trioxide aggregate (MTA) cement. Surgical tibial fractures were created on 18 rabbits, and all fractures were fixed with WO and some groups were grafted with MTA. Irradiated groups received lights at every other day during 15 days, and all animals were sacrificed after 30 days, being the tibia removed...
April 23, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29687012/sex-based-differences-of-medial-collateral-ligament-and-anterior-cruciate-ligament-strains-with-cadaveric-impact-simulations
#10
Nathan D Schilaty, Nathaniel A Bates, Christopher V Nagelli, Aaron J Krych, Timothy E Hewett
Background: Female patients sustain noncontact knee ligament injuries at a greater rate compared with their male counterparts. The cause of these differences in the injury rate and the movements that load the ligaments until failure are still under dispute in the literature. Purpose/Hypotheses: This study was designed to determine differences in anterior cruciate ligament (ACL) and medial collateral ligament (MCL) strains between male and female cadaveric specimens during a simulated athletic task...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29687005/medium-long-term-radiographic-and-clinical-outcomes-after-surgical-treatment-of-intra-articular-tibial-pilon-fractures-by-three-different-techniques
#11
Carlo Biz, Andrea Angelini, Marco Zamperetti, Filippo Marzotto, Silvano Pierluigi Sperotto, Diego Carniel, Claudio Iacobellis, Pietro Ruggieri
Introduction: The goal of this retrospective, observational, case series study was to evaluate the medium-long-term clinical and radiographic results of the three most common surgical osteosynthesis techniques used for the treatment of articular tibial pilon fractures: ORIF, MIPO, and EF. Materials and Methods: A consecutive series of patients with articular pilon fractures who underwent surgery at our institution were enrolled in this study. Fractures were classified according to the Müller AO classification system...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29685995/animal-models-for-bone-tissue-engineering-and-modelling-disease
#12
REVIEW
Jacqui Anne McGovern, Michelle Griffin, Dietmar Werner Hutmacher
Tissue engineering and its clinical application, regenerative medicine, are instructing multiple approaches to aid in replacing bone loss after defects caused by trauma or cancer. In such cases, bone formation can be guided by engineered biodegradable and nonbiodegradable scaffolds with clearly defined architectural and mechanical properties informed by evidence-based research. With the ever-increasing expansion of bone tissue engineering and the pioneering research conducted to date, preclinical models are becoming a necessity to allow the engineered products to be translated to the clinic...
April 23, 2018: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29685834/effect-of-increased-coronal-inclination-of-the-tibial-plateau-after-opening-wedge-high-tibial-osteotomy
#13
Yasushi Akamatsu, Ken Kumagai, Hideo Kobayashi, Masaki Tsuji, Tomoyuki Saito
PURPOSE: To assess whether the increased inclination of the tibial plateau on the coronal view after opening-wedge high tibial osteotomy affects radiographic coronal alignment, clinical outcomes, and cartilage findings. METHODS: After adjustment for the preoperative medial proximal tibial angle (MPTA), patients who underwent opening-wedge high tibial osteotomy were retrospectively divided into those with postoperative MPTA values of 95° or less (normal group) and greater than 95° (increased group), with each group containing 43 knees...
April 20, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29685499/how-does-the-inclination-of-the-tibial-component-matter-a-three-dimensional-finite-element-analysis-of-medial-mobile-bearing-unicompartmental-arthroplasty
#14
Xuesong Dai, Jinghua Fang, Lifeng Jiang, Yan Xiong, Miaofeng Zhang, Sunan Zhu
BACKGROUND: Medial unicompartmental knee arthroplasty (UKA) using Oxford mobile-bearing prosthesis is performed in the treatment of medial compartmental arthritis of the knee. However, little is known about the stress distributions for mobile-bearing UKA on the medial tibial plateau. METHODS: In this study, the stresses on the coronal plane were calculated in a three-dimensional model of the proximal tibia. The features of the stress distribution were investigated when the tibial tray was placed in 15°, 10°, six degrees, and three degrees varus, neutral (0°), and in three degrees, six degrees, 10°, and 15° valgus on the coronal plane of the medial plateau...
April 20, 2018: Knee
https://www.readbyqxmd.com/read/29685058/the-effect-of-open-vs-closed-kinetic-chain-exercises-on-anterior-tibial-laxity-strength-and-function-following-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis
#15
Alyssa Perriman, Edmund Leahy, Adam Ivan Semciw
Study Design Systematic review with meta-analysis. Background There is controversy surrounding the early use of Open Kinetic Chain (OKC) quadriceps strengthening exercises post anterior cruciate ligament reconstruction (ACLR) due to the belief that increased strain in the graft could cause damage. Objectives To determine if OKC quadriceps exercises result in differences in anterior tibial laxity, strength, function, quality of life or adverse events in the ACLR population, when compared to closed kinetic chain (CKC) quadriceps exercises...
April 23, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29683857/management-of-tibial-bow-in-fibular-deficiency
#16
David E Westberry, Ashley M Carpenter, John Barrera, Alison Westberry
BACKGROUND: Deformity of the tibia, including shortening and angulation, may accompany severe forms of postaxial hypoplasia (fibular deficiency). The current literature reflects varying opinions on the appropriate management for tibial deformity in the setting of fibular deficiency. METHODS: We performed a retrospective review to determine outcomes of tibial deformity correction in patients with a primary diagnosis of fibular deficiency. Clinical and radiographic outcomes of patients treated with foot ablation were reviewed to establish indications for tibial deformity correction, identify occurrence of additional surgical procedures related to limb alignment or deformity, and characterize difficulties with prosthetic wear potentially related to residual or recurrent tibial deformity...
April 20, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29683374/finite-element-analysis-of-the-effect-of-high-tibial-osteotomy-correction-angle-on-articular-cartilage-loading
#17
Zahra Trad, Abdelwahed Barkaoui, Moez Chafra, João Manuel Rs Tavares
Osteoarthritis is a globally common disease that imposes a considerable ongoing health and economic burden on the socioeconomic system. As more and more biomechanical factors have been explored, malalignment of the lower limb has been found to influence the load distribution across the articular surface of the knee joint substantially. In this work, a three-dimensional finite element analysis was carried out to investigate the effect of varying the high tibial osteotomy correction angle on the stress distribution in both compartments of the human knee joint...
April 1, 2018: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29683001/relationship-between-femoral-anteversion-and-tibial-torsion-ct-evaluation-of-38-unilateral-developmental-dysplasia-of-the-hip-patients
#18
Kyu-Jin Cho, Kyung-Soon Park, Young-Rok Shin, Hong-Yeol Yang, Taek-Rim Yoon
INTRODUCTION: Patients with developmental dysplasia of the hip (DDH) present with a wide spectrum of deformities. Few studies have assessed the relationship between femoral anteversion (FA) and rotational profile. The aim of this study is to evaluate the influence of FA on the lower extremity rotational profile by comparing tibial torsion (TT) between the extremities on both sides in patients with unilateral DDH, using computed tomography (CT). PATIENTS AND METHODS: Thirty eight patients with unilateral developmental dysplasia of the hip, who underwent a preoperative rotational profile CT scan at our institution, were evaluated...
April 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29682596/spared-nerve-injury-model-of-neuropathic-pain-in-mice
#19
Joseph Cichon, Linlin Sun, Guang Yang
Experimental models of peripheral nerve injury have been developed to study mechanisms of neuropathic pain in living animals. The spared nerve injury (SNI) model in rodents is a partial denervation model, in which the common peroneal and tibial nerves are injured, producing consistent and reproducible tactile hypersensitivity in the skin territory of the spared, intact sural nerve. SNI-operated mice require less force applied to the affected limb to elicit a withdrawal behavior as compared to sham mice. This effect is observed as early as 2 days after surgery and lasts for at least 1 month...
March 20, 2018: Bio-protocol
https://www.readbyqxmd.com/read/29682311/acl-reconstruction-with-hamstring-tendon-autograft-and-accelerated-brace-free-rehabilitation-a-systematic-review-of-clinical-outcomes
#20
Rob P A Janssen, Nicky van Melick, Jan B A van Mourik, Max Reijman, Lodewijk W van Rhijn
Objective: To investigate the clinical outcomes after hamstring tendon autograft ACL reconstruction (ACLR) with accelerated, brace-free rehabilitation. Design: Systematic review according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. Data sources: Embase, MEDLINE Ovid, Web of Science, Cochrane CENTRAL and Google scholar from 1 January 1974 to 31 January 2017. Eligibility criteria for selecting studies: Study designs reporting outcomes in adults after arthroscopic, primary ACLR with hamstring autograft and accelerated, brace-free rehabilitation...
2018: BMJ Open Sport & Exercise Medicine
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