154,857 results match your criteria Knee Extensor Mechanism Injuries MRI


Neuromuscular activation of the knee and hip extensor muscles during high-intensity interval and moderate-intensity constant cycling.

J Electromyogr Kinesiol 2018 Nov 28;44:64-69. Epub 2018 Nov 28.

Research Center of Health, Physical Fitness & Sports, Nagoya University, Nagoya, Japan; Graduate School of Education and Human Development, Nagoya University, Nagoya, Japan.

We aimed to test the hypothesis that the magnitude of differences in muscle activation of the knee and hip extensor muscles between high-intensity interval exercise (HIE) and moderate-intensity constant exercise (CE) would be greater for the gluteus maximus than for the quadriceps femoris muscle. Participants were 11 male middle- or long-distance runners. The HIE (4 sets, 4-min induration, performed at 80-85%VO and followed by a 3-min period of cycling at < 30%VO) and CE (28-min, performed at or near 60%VO) were completed on different days, with the total exercise duration and work being identical for both protocols. Read More

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November 2018
2 Reads

[Interlocking femoral nail and total knee Arthroplasty in one stage for a patient with a femoral diaphyseal stress fracture].

Acta Ortop Mex 2018 May-Jun;32(3):163-166

Servicio de Cirugía Ortopédica y Traumatología, Hospital de Sabadell. Institut Universitari Parc Taulí Universitat Autònoma de Barcelona, España.

We present the case of an 81-year-old woman who was followed up by the Rheumatology Service for osteoporosis and treated with bisphosphonates for more than five years. She reported a fracture of the distal third of the contralateral femur by a low energy mechanism, treated with retrograde intramedullary nailing the previous year. She presented a clinic of cruralgia and left gonalgia, without previous trauma. Read More

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December 2018

[Postoperative functional angular anatomy in patients with anterior cruciate ligament with autologous graft].

Acta Ortop Mex 2018 May-Jun;32(3):157-162

Servicio de Cirugía Articular, Hospital Juárez de México, Ciudad de México.

Background: Reconstruction of the anterior cruciate ligament (ACL) aims to restore the original anatomy. The clinical outcome could be imperfect when graft placement is not in an anatomical position; moreover, the conventional transtibial reconstruction of the ACL often locates the graft away from the anatomical site, leading to abnormal biomechanical behavior and kinematics of the knee. The objective of this work was to assess the importance of the angular reconstruction of the anterior cruciate ligament during arthroscopic replacement and to compare the postoperative functional results. Read More

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December 2018

[Continuous vs. intermitent intravenous analgesia for primary total knee replacement: analysis of the quality of the pain control, hospital stay and costs].

Acta Ortop Mex 2018 May-Jun;32(3):134-139

Instituto Allende de Cirugía Reconstructiva de los Miembros, Córdoba-Argentina.

Background: The International Association for the Study of Pain (IASP) defines pain as an unpleasant sensory and emotional experience associated with actual or potential tissue damage. Total knee arthroplasty is one of the orthopedic surgeries that manifests more pain in the first 24-48 hours, needing a multimodal analgesic therapy. The objective of this work is to compare two different intravenous analgesic modes applied to patients undergoing a primary total knee arthroplasty, analyzing the quality of pain control, hospital stay and costs. Read More

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December 2018
1 Read

Intra-articular injection of hydrogen sulfide decreased the progression of gonarthrosis.

Can J Physiol Pharmacol 2018 Dec 6:1-8. Epub 2018 Dec 6.

d Department of Pharmacology, University of Giresun, Giresun, Turkey.

Hydrogen sulfide (HS) is found in both the plasma and synovial fluid of patients with gonarthrosis. In the present study, we investigated whether intra-articular injection of sodium hydrosulfide (NaSH) (1 mM, 30 μL), a HS donor, might affect gonarthrosis in rats. Gonarthrosis was induced surgically in the left knees of rats and left for 6 weeks for the development of disease. Read More

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December 2018
4 Reads

Diffuse Tibiofemoral Cartilage Change Prior to the Development of Accelerated Knee Osteoarthritis: Data from the Osteoarthritis Initiative.

Clin Anat 2018 Dec 6. Epub 2018 Dec 6.

Division of Rheumatology, Allergy, and Immunology, Tufts Medical Center, Boston, MA, USA.

Introduction: We compared the spatial distribution of tibiofemoral cartilage change between individuals who will develop accelerated knee osteoarthritis (KOA) versus typical onset of KOA prior to the development of radiographic KOA.

Materials And Methods: We conducted a longitudinal case-control analysis of 129 individuals from the Osteoarthritis Initiative. We assessed the percent change in tibiofemoral cartilage on magnetic resonance images at 36 informative locations from two to one year prior to the development of accelerated (n=44) versus typical KOA (n=40). Read More

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December 2018

Posturographic and ankle muscle activation characteristics in patients with haemophilia.

Haemophilia 2018 Dec 6. Epub 2018 Dec 6.

Department of Sports Medicine, University of Wuppertal, Wuppertal, Germany.

Introduction: The objective of this work was to examine the interrelations of posturographic and surface EMG (SEMG) characteristics of ankle muscles in patients with haemophilia while standing naturally.

Methods: Surface EMG of five bilaterally recorded ankle muscles was conducted in 24 patients with haemophilia (PwH, age: 42 [11] years, mean [SD], 22 A, 2 B, 21 severe, 3 moderate) with median (quartiles) WFH orthopaedic joint score of 30 (20/39) points and 24 non-haemophilic controls (Con, age: 42 [12]). Force plate (IBS) signals were captured simultaneously during bipedal stance with eyes open. Read More

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December 2018
1 Read

Are the knee extensor and flexor muscles isokinetic parameters affected by the duration of postoperative physiotherapy supervision in patients eight months after ACL reconstruction with the use of semitendinosus and gracilis tendons autograft?

Acta Bioeng Biomech 2018 ;20(4):89-100

Division of Sports Medicine, Wrocław Medical University, Wrocław, Poland.

Purpose: The observational study evaluated isokinetic parameters in patients at eight months after anterior cruciate ligament reconstruction (ACLR) utilizing semitendinosus and gracilis tendons autograft, with two different modes of physiotherapy, and investigated whether analysed parameters were affected by the postoperative physiotherapy supervision duration.

Methods: Strict exclusion criteria were employed on a group of 259 ACL-reconstructed patients to identify two groups of males preoperatively well trained and frequently participating in sports, with different durations of postoperative physiotherapy supervision: Group I (n = 18; x = 27.67 weeks) and Group II (n = 20; x = 10. Read More

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January 2018

Artificial neural network simulation of lower limb joint angles in normal and impaired human gait.

Acta Bioeng Biomech 2018 ;20(4):43-49

Józef Piłsudski University of Physical Education in Warsaw, Faculty of Rehabilitation, Warsaw, Poland.

Purpose: Simulating the complexities of lower limb motion can be useful for orthosis or rehabilitation planning. The aim of this study was to develop an artificial neural network (ANN) able to accurately simulate the changes in the angle of the ankle, knee and hip joints during the gait cycle, then to use it to simulate the impact of a restricted range of ankle and hip joint angle changes on the progres- sion of the knee joint angle.

Methods: Thirty four young healthy students participated in the study. Read More

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January 2018

2018: the knee of the rejuvenation curve.

Rejuvenation Res 2018 Dec 6. Epub 2018 Dec 6.

SENS Research Foundation , 110 Pioneer Way, Ste J. , Mountainview, California, United States , 94041.

n/a. Read More

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December 2018
1 Read

Heparin-induced thrombocytopenia suggested by microscopic examination of a below-knee amputation.

Transfusion 2018 Dec;58(12):2784-2785

Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital, Weill Cornell Medicine, New York, New York.

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December 2018
2 Reads

Automated segmentation of trabecular and cortical bone from proton density weighted MRI of the knee.

Med Biol Eng Comput 2018 Dec 5. Epub 2018 Dec 5.

Department of Biomechanical Engineering, University of Twente, Drienerlolaan 5, 7500 AE, Enschede, the Netherlands.

Patient-specific implant design and pre- and intra-operative planning is becoming increasingly important in the orthopaedic field. For clinical feasibility of these techniques, fast and accurate segmentation of bone structures from MRI is essential. However, manual segmentation is time intensive and subject to inter- and intra-observer variation. Read More

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December 2018

Better understanding of acute gouty attack using CT perfusion in a rabbit model.

Eur Radiol 2018 Dec 5. Epub 2018 Dec 5.

Department of Radiology, Affiliated Hospital (Laoshan Hospital) of Qingdao University, Qingdao, 266000, Shandong, China.

Objective: To assess hemodynamic changes related to acute gouty knee arthritis in a rabbit with CT perfusion (CTP) METHODS: Forty-two rabbits were randomly separated into two groups: the treated group of 30 and the control group of 12. The right knee was injected with monosodium urate solution and polymyxin in the treated group and saline and polymyxin in the control group. At 2, 16, 32, 48, 60, and 72 h after injection, five rabbits from the treated group and two rabbits from the control group were selected for CTP. Read More

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December 2018
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The efficacy of electromyographic biofeedback on pain, function, and maximal thickness of vastus medialis oblique muscle in patients with knee osteoarthritis: a randomized clinical trial.

J Pain Res 2018 8;11:2781-2789. Epub 2018 Nov 8.

Department of Sport Sciences, Payame Noor University, Tehran, Iran.

Introduction: The aim of this survey was to examine the effect of adding electromyographic biofeedback (EMGBF) to isometric exercise, on pain, function, thickness, and maximal electrical activity in isometric contraction of the vastus medialis oblique (VMO) muscle in patients with knee osteoarthritis (OA).

Methods: In this clinical trial, 46 patients with a diagnosis of knee OA were recruited and assigned to two groups. The case group consisted of 23 patients with EMGBF-associated exercise, and the control group was made up of 23 patients with only isometric exercise. Read More

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November 2018
1 Read

Heeled Shoes Increase Knee Work Demand During Repeated Hopping in Dancers.

Med Probl Perform Art 2018 Dec;33(4):243-250

Outpatient Rehabilitation Services, Cedars-Sinai Medical Center, 444 S. San Vicente Blvd #701, Los Angeles, CA 90048, USA. Tel 310-967-7409.

Aims: Dancers have high injury rates of the lower extremity. External factors such as footwear likely alter the work demands placed on the lower extremity joints when performing dance-style movements. Research on pedestrians shows an increase in knee work demand when wearing heels, which may occur in dancers as well. Read More

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December 2018
1 Read

The level of synovial AXL expression determines the outcome of inflammatory arthritis, possibly depending on the upstream role of TGF-β1.

Rheumatology (Oxford) 2018 Dec 1. Epub 2018 Dec 1.

Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands.

Objective: To investigate the role of AXL, a member of the anti-inflammatory TYRO3, AXL MER (TAM) receptor family, in arthritis.

Methods: KRN serum transfer arthritis was induced in Axl-/- and wild-type mice. Knee and ankle joints were scored macro- and microscopically. Read More

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December 2018

Do dGEMRIC and T2 Imaging Correlate With Histologic Cartilage Degeneration in an Experimental Ovine FAI Model?

Clin Orthop Relat Res 2018 Nov 29. Epub 2018 Nov 29.

F. Schmaranzer, E. F. Liechti, M. Tannast, Department of Orthopaedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland L. Arendt, K. Nuss, B. von Rechenberg, M. Tannast, Musculoskeletal Research Unit (MSRU), Equine Hospital, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland P. R. Kircher, Department of Small Animals, Division of Diagnostic Imaging, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland.

Background: Biochemical MRI of hip cartilage such as delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) and T2 mapping is increasingly used to judge cartilage quality in the assessment of femoroacetabular impingement (FAI). The current evidence is sparse about which of these techniques yields a stronger correlation with histologic cartilage degeneration because of the difficulty in validating biochemical MRI techniques against histology in the clinical setting. Recently, an experimental ovine FAI model was established that induces chondrolabral damage and offers a validated platform to address these limitations. Read More

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November 2018
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Low-molecular-weight heparin followed by rivaroxaban or not for the prevention of deep venous thromboembolism after total knee arthroplasty.

Blood Coagul Fibrinolysis 2018 Nov 29. Epub 2018 Nov 29.

Department of Orthopedics, The Second Xiangya Hospital.

: To observe the effect of LMWH followed by rivaroxaban for the prevention of DVT after TKA. Between June 2015 and November 2017 as well as in accordance with the inclusion criteria, 118 patients undergoing TKA were randomly allocated to two groups. Patients in group A were applied LMWH, whereas patients in group B received LMWH followed by rivaroxaban postoperatively. Read More

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November 2018
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Effects of exoskeleton use on movement kinematics during performance of common work tasks: A case study.

Work 2018 Nov 26. Epub 2018 Nov 26.

Bert S. Turner Department of Construction Management, Louisiana State University, Baton Rouge, LA, USA.

Background: An exoskeleton may assist performance of basic work-related tasks. Its application should not alter user kinematics, which compromise user safety.

Objective: This case study was used to assess whether people wearing a lower-body K-SRDTM exoskeleton could complete common work tasks without altering kinematics that may increase injury risk. Read More

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November 2018
1 Read

Neuraxial anesthesia is less harmful to the endothelial glycocalyx during elective joint surgery compared to general anesthesia1,2.

Clin Hemorheol Microcirc 2018 Nov 29. Epub 2018 Nov 29.

Department of Anaesthesiology and Intensive Care, University Hospital Hradec Kralove, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic.

Background: Damage of the endothelial glycocalyx (EG) has been described during surgery, but the effect of different anesthesia techniques remains unknown. Perfused boundary region (PBR) evaluated by side-stream dark field (SDF) imaging of the sublingual microcirculation enables in vivo EG assessment. PBR values are inversely related to the EG thickness. Read More

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November 2018
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Isokinetic knee strength and proprioception before and after anterior cruciate ligament reconstruction: A comparison between home-based and supervised rehabilitation.

J Back Musculoskelet Rehabil 2018 Nov 23. Epub 2018 Nov 23.

Major in Rehabilitation Science, Graduate School, Korea University, Seoul, Korea.

Background: Rehabilitation after anterior cruciate ligament (ACL) reconstruction focuses on restoring knee deficiencies and function. However, the extent of the clinician's direct supervision that is required to recover knee function is unknown.

Objective: To investigate differences in isokinetic knee strength improvement, endurance, and proprioception between home-based (HBR) and supervised rehabilitation (SR). Read More

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November 2018
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Magnetic resonance imaging for common peroneal nerve injury in trauma patients: Are routine knee sequences adequate for prediction of outcome?

J Med Imaging Radiat Oncol 2018 Dec 3. Epub 2018 Dec 3.

Department of Radiology, The Royal Melbourne Hospital, The University of Melbourne, Melbourne, Victoria, Australia.

Introduction: Common peroneal nerve (CPN) injury occurs in 10-40% of patients following knee dislocation. Is magnetic resonance imaging (MRI) using routine knee protocols able to adequately evaluate CPN injury and predict long-term outcome?

Methods: Trauma patients presenting for knee MRI at a single public hospital, between July 2007 and May 2017, were retrospectively identified using radiology and orthopaedic databases. Medical records were retrieved for clinical scores. Read More

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December 2018
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Flow MR fingerprinting.

Magn Reson Med 2018 Dec 2. Epub 2018 Dec 2.

Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.

Purpose: To investigate the feasibility to quantify blood velocities within the magnetic resonance fingerprinting framework, while providing relaxometric maps of static tissue.

Methods: Bipolar gradients are inserted into an SSFP-based MRF sequence to achieve velocity-dependent signal phases, allowing tri-directional time-resolved velocity component quantification. The accuracy of both relaxometric mapping and velocity quantification was validated in vivo and in phantom studies. Read More

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December 2018

The Impact of Excluding Patients with End-Stage Knee Disease in Intra-Articular Hyaluronic Acid Trials: A Systematic Review and Meta-Analysis.

Adv Ther 2018 Dec 1. Epub 2018 Dec 1.

Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA.

Introduction: The Kellgren-Lawrence (K-L) grade is the most commonly used measure of radiographic disease severity in knee osteoarthritis (OA). Studies suggest that intra-articular hyaluronic acid (IA-HA) should only be considered in cases of early stage knee OA. The purpose of this review was to determine if trials administering IA-HA in early-moderate knee OA patients demonstrated greater pain relief than studies that also included patients with end-stage disease. Read More

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December 2018
1 Read

Development of a clinical risk score for pain and function following total knee arthroplasty: results from the TRIO study.

Rheumatol Adv Pract 2018 29;2(2):rky021. Epub 2018 May 29.

Epidemiology Group, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen.

Objectives: The aim was to develop and validate a simple clinical prediction model, based on easily collected preoperative information, to identify patients at high risk of pain and functional disability 6 months after total knee arthroplasty (TKA).

Methods: This was a multicentre cohort study of patients from nine centres across the UK, who were undergoing a primary TKA for OA. Information on sociodemographic, psychosocial, clinical and quality-of-life measures were collected at recruitment. Read More

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Cost-utility analysis of interventions to improve effectiveness of exercise therapy for adults with knee osteoarthritis: the BEEP trial.

Rheumatol Adv Pract 2018 6;2(2):rky018. Epub 2018 Jun 6.

Arthritis Research UK Primary Care Centre, Research Institute of Primary Care and Health Sciences, Keele University, Keele, Staffordshire, UK.

Objectives: Evidence regarding the cost-effectiveness of enhancing physical therapy exercise programmes in order to improve outcomes for patients with knee OA remains unclear. This study investigates the cost-effectiveness of two enhanced physical therapy interventions compared with usual physical therapy care (UC) for adults with knee OA.

Methods: A trial-based cost-utility analysis of individually tailored exercise (ITE) or targeted exercise adherence (TEA) compared with UC was undertaken over a period of 18 months. Read More

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June 2018
1 Read

Poor Performance on Single-Legged Hop Tests Associated With Development of Posttraumatic Knee Osteoarthritis After Anterior Cruciate Ligament Injury.

Orthop J Sports Med 2018 Nov 26;6(11):2325967118810775. Epub 2018 Nov 26.

Biomechanics and Movement Science Program, University of Delaware, Newark, Delaware, USA.

Background: The risk for knee osteoarthritis (OA) is substantially increased after anterior cruciate ligament (ACL) injury. Tools are needed to identify characteristics of patients after ACL injury who are most at risk for posttraumatic OA.

Purpose: To determine whether clinical measures of knee function after ACL injury are associated with the development of radiographic knee OA 5 years after injury. Read More

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November 2018
1 Read

Finite Element Analysis of the Mouse Distal Femur with Tumor Burden in Response to Knee Loading.

Int J Orthop (Hong Kong) 2018 28;5(1):863-871. Epub 2018 Feb 28.

Department of Mechanical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA.

Breast cancer-associated bone metastasis induces bone loss, followed by an increased risk of bone fracture. To develop a strategy for preventing tumor growth and protecting bone, an understanding of the mechanical properties of bone under tumor burden is indispensable. Using a mouse model of mammary tumor, we conducted finite element analysis (FEA) of two bone samples from the distal femur. Read More

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February 2018
1 Read

Quantifying anterior knee pain during specific activities after using the bone-patellar tendon-bone graft for arthroscopic anterior cruciate ligament reconstruction.

Asia Pac J Sports Med Arthrosc Rehabil Technol 2019 Jan 16;15:6-12. Epub 2018 Nov 16.

Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.

Background/objective: There has been much debate about the optimal graft choice for an anterior cruciate ligament (ACL) reconstruction. Anterior knee pain is a common donor site problem when using a bone-patellar tendon-bone (BPTB) graft. However, knowledge of the characteristics of anterior knee pain during different daily activities is still limited. Read More

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January 2019

Not all brawn, but some brain. Strength gains after training alters kinematic motor abundance in hopping.

PeerJ 2018 23;6:e6010. Epub 2018 Nov 23.

School of Physiotherapy and Exercise Sciences, Curtin University of Technology, Perth, Western Australia, Australia.

Background: The effects of resistance training on a muscle's neural, architectural, and mechanical properties are well established. However, whether resistance training can positively change the coordination of multiple motor elements in the control of a well-defined lower limb motor performance objective remains unclear. Such knowledge is critical given that resistance training is an essential and ubiquitous component in gait rehabilitation. Read More

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November 2018

No Difference between Extraction Drilling and Serial Dilation for Tibial Tunnel Preparation in Anterior Cruciate Ligament Reconstruction: A Systematic Review.

J ISAKOS 2018 May 25;3(3). Epub 2018 Jun 25.

University of Pittsburgh Medical Center, Center for Sports Medicine (Pittsburgh).

Importance: This review highlights a lack of consensus and need for further study regarding optimal tibial tunnel preparation method in anterior cruciate ligament reconstruction (ACLR).

Objective: This review examines existing clinical and biomechanical outcomes of both extraction drilling (ED) and serial dilation (SD) as a technique for tibial tunnel preparation in ACLR.

Evidence Review: In accordance with PRISMA guidelines, three electronic databases (MEDLINE, EMBASE, and PubMed) were searched and systematically screened in duplicate from database inception to September 6, 2017 for English-language, human studies, of all levels of evidence that examined ED and/or SD for tibial tunnel preparation in ACLR. Read More

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May 2018
1 Read

Safety of Temporary Use of Recycled Autoclaved Femoral Components in Infected Total Knee Arthroplasty: Confirming Sterility Using a Sonication Method.

Clin Orthop Surg 2018 Dec 21;10(4):427-432. Epub 2018 Nov 21.

Department of Orthopaedic Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea.

Background: The purpose of this study was to evaluate the usefulness of sonication technique for microbiological diagnosis and the sterility of the recycled autoclaved femoral components from infected total knee arthroplasty (TKA) using a sonication method.

Methods: Nineteen femoral implants explanted from patients with infected TKA were sterilized with a standard autoclave method. Standard culture of the fluid before and after sonication of the sterilized implants was performed to detect pathogenic microorganisms. Read More

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December 2018
1 Read

Factors Affecting Tibial Tuberosity-Trochlear Groove Distance in Recurrent Patellar Dislocation.

Clin Orthop Surg 2018 Dec 21;10(4):420-426. Epub 2018 Nov 21.

Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun, Korea.

Background: The tibial tuberosity-trochlear groove (TT-TG) distance is used to determine the necessity of tibial tubercle osteotomy. We conducted this study to determine the extent to which each of the tibial tuberosity lateralization, trochlear groove medialization, and knee rotation angle affects the TT-TG distance in both normal and patella dislocated patients and thereby scrutinize the rationale for tuberosity transfer based on the TT-TG distance.

Methods: Retrospective analysis of rotational profile computed tomography was done for patella dislocated and control group patients. Read More

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December 2018
1 Read

How to Avoid Graft-Tunnel Length Mismatch in Modified Transtibial Technique for Anterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Graft.

Clin Orthop Surg 2018 Dec 21;10(4):407-412. Epub 2018 Nov 21.

Department of Orthopedic Surgery, Yonsei Sarang Hospital, Seoul, Korea.

Background: We conducted this study to determine the optimal length of patellar and tibial bone blocks for the modified transtibial (TT) technique in anterior cruciate ligament (ACL) reconstruction using the bone-patellar tendon-bone (BPTB) graft.

Methods: The current single-center, retrospective study was conducted in a total of 64 patients with an ACL tear who underwent surgery at our medical institution between March 2015 and February 2016. After harvesting the BPTB graft, we measured its length and that of the patellar tendon, patellar bone block, and tibial bone block using the arthroscopic ruler and double-checked measurements using a length gauge. Read More

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December 2018

Preoperative Serum Albumin Levels Predict Treatment Cost in Total Hip and Knee Arthroplasty.

Clin Orthop Surg 2018 Dec 21;10(4):398-406. Epub 2018 Nov 21.

Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.

Background: Hypoalbuminemia (serum albumin < 3.5 g/dL) is associated with increased morbidity and mortality in patients undergoing total hip arthroplasty (THA) and total knee arthroplasty (TKA). However, costs associated with hypoalbuminemia remain unknown. Read More

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December 2018
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Using Tibia Proximal Cut Autograft in Advanced Varus Knee Deformity in Total Knee Arthroplasty; Outcomes Compared to the Control Group.

Authors:
Aydin Arslan

Open Orthop J 2018 24;12:405-410. Epub 2018 Oct 24.

Elit Istanbul Medical Center, Orthopaedics and Traumatology, Istanbul Gelisim university, Istanbul, Turkey.

Background: The purpose of this study was to compare the outcomes of Total Knee Arthroplasty (TKA) performed for advanced varus knee deformity, which is performed by using tibia proximal cut bone for the reconstruction of the tibia proximal medial bone defects, with a control group consisting of TKAs which did not need reconstruction.

Methods: Patients in the present study underwent total knee arthroplasty between 2009 and 2015. 12 patients with advanced varus deformity who had undergone reconstruction with tibia proximal cut autograft and 15 patients who were randomly selected from patients who did not need reconstruction, were compared clinically and radiographically. Read More

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October 2018
3 Reads

α-Microglobulin Protects Against Bleeding-Induced Oxidative Damage in Knee Arthropathies.

Front Physiol 2018 16;9:1596. Epub 2018 Nov 16.

Department of Clinical Sciences Lund, Orthopaedics, Faculty of Medicine, Lund University, Lund, Sweden.

Knee injury increases the risk of developing knee osteoarthritis (OA). Recent evidence suggests involvement of oxidative stress induced by inflammation and bleeding in the joint. This study investigates the role in this process of α-microglobulin (A1M), a plasma and tissue antioxidant protein with reducing function, and heme- and radical-binding properties. Read More

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November 2018
1 Read

Comparison of bone texture between normal individuals and patients with Kashin-Beck disease from plain radiographs in knee.

Sci Rep 2018 Nov 30;8(1):17510. Epub 2018 Nov 30.

Department of Integrative Molecular Biology, Umeå University, 90187, Umeå, Sweden.

To compare tibial bone texture between Kashin-Beck disease (KBD) patients and normal individuals from plain radiographs using an advanced image analysis. Plain knee radiographs were obtained from KBD patients (n = 49) and age-matched healthy controls (n = 98). KBD were graded with diagnostic criteria WS/T 207-2010. Read More

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November 2018
2 Reads

Effectiveness of low-dose radiation therapy on symptoms in patients with knee osteoarthritis.

Ann Rheum Dis 2018 Dec 1. Epub 2018 Dec 1.

Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China

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December 2018
2 Reads

Progressive Sublesional Bone Loss Extends into the Second Decade After Spinal Cord Injury.

J Clin Densitom 2018 Oct 31. Epub 2018 Oct 31.

Department of Veterans Affairs Rehabilitation Research & Development Service National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA; Departments of Medicine and Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.

Objective: The rate of areal bone mineral density (aBMD) loss at the knee (distal femur (DF) and proximal tibia ) and hip (femoral neck (FN) and total hip (TH)) was determined in persons with traumatic spinal cord injury (SCI) who were stratified into subgroups based on time since injury (TSI).

Design: Cross-sectional retrospective review.

Setting: Department of Veterans Affairs Medical Center and Private Rehabilitation Hospital. Read More

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October 2018
1 Read

Total knee arthroplasty in a patient with nail-patella syndrome (NPS).

Knee 2018 Nov 29. Epub 2018 Nov 29.

Houston Methodist Othopedics & Sports Medicine, Houston, TX, United States of America. Electronic address:

Nail-patella syndrome (NPS) or hereditary onycho-osteodyaplasia is a rare genetic condition involving a mutation in the LMX1B gene affecting nails, elbows, knees, and pelvis. Due to the regulatory functions of the gene in many developmental processes through the body, patients with NPS experience wide-ranging musculoskeletal problems including patellar instability, fingernail anomalies, iliac exostoses/horns, and elbow abnormalities. The patellar changes often involve aplasia, hypoplasia, and chronic dislocation. Read More

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November 2018
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Compartimental harvesting of dual lymph node flap from the right supraclavicular area for the treatment of lower extremity lymphedema: A case series.

J Plast Reconstr Aesthet Surg 2018 Nov 19. Epub 2018 Nov 19.

Department of Plastic and Reconstructive Surgery, Centre for Surgical Treatment of Lymphedema, Università Cattolica del "Sacro Cuore" - Fondazione Policlinico "A. Gemelli" IRCSS - Largo A. Gemelli 8, 00169 Rome, Italy.

Background: We report our clinical experience of a supraclavicular lymph node flap (LNF) using a novel method of harvesting based on the compartimental lymphatic and vascular anatomy of the right posterior neck triangle, which allows to harvest two independent LNFs from the same donor site.

Patients And Methods: We report a case series of 10 consecutive patients affected by cancer-related lower extremity lymphedema, who underwent compartimental dual LNF transfer from the right supraclavicular area to the affected lower limb, from August 2015 to March 2017. The superficial compartment flap (venous flap along the external jugular vein) was anastomosed in a flow-through fashion along the course of the great saphenous vein in the knee region, whereas the deep compartment flap (transverse cervical artery/vein flap) was anastomosed in an end-to-end fashion to the medial sural artery and comitantes vein. Read More

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November 2018
1 Read

Complications Associated With Medial Opening-Wedge High Tibial Osteotomy Using a Locking Plate: A Multicenter Study.

J Arthroplasty 2018 Nov 14. Epub 2018 Nov 14.

Department of Orthopaedic Surgery, Korea University Anam Hospital, Korea University School of Medicine, Seoul, South Korea.

Background: The aim of this study is to investigate complications following medial opening-wedge high tibial osteotomy using a locking plate. In addition, we aimed to compare postoperative outcomes between the complicated and the uncomplicated group.

Methods: This study enrolled 209 patients who underwent medial opening-wedge high tibial osteotomy between 2010 and 2015. Read More

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November 2018

Incidence and Risk Factors for Post-Thrombotic Syndrome in Patients With Deep Vein Thrombosis Following Total Knee and Hip Arthroplasty.

J Arthroplasty 2018 Oct 16. Epub 2018 Oct 16.

Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, People's Republic of China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing, Jiangsu, People's Republic of China.

Background: Deep vein thrombosis (DVT) is common after total joint arthroplasty (TJA), and can cause the sequela of post-thrombotic syndrome (PTS), which is associated with decreased quality of life and increased treatment cost. The purpose of this study is to determine the incidence and risk factors for PTS in patients with DVT following primary unilateral total knee and hip arthroplasty.

Methods: We conducted this follow-up study involving patients developing DVT after primary unilateral total knee arthroplasty or total hip arthroplasty at our institution between April 2010 and March 2017. Read More

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October 2018
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The Presence of a Psychiatric Condition is Associated With Undergoing Hip Arthroscopy for Femoroacetabular Impingement: A Matched Case-Controlled Study.

J Arthroplasty 2018 Nov 9. Epub 2018 Nov 9.

Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medicine & Biological Sciences, Chicago, IL.

Background: We sought to examine the association between having a psychiatric condition and undergoing hip arthroscopy for femoroacetabular impingement (FAI).

Methods: A matched case-control study was performed to control for age and gender. All patients over 16 years of age with FAI treated with hip arthroscopy by a single surgeon were randomly matched to a patient of the same age and gender undergoing knee arthroscopy for any diagnosis other than infection by the same surgeon during the same period. Read More

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November 2018
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