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https://www.readbyqxmd.com/read/29786823/application-of-hybrid-external-fixation-by-the-joystick-method-in-bicondylar-tibial-plateau-fractures-technical-note
#1
Ersin Kuyucu, Adnan Kara, Ferhat Say, Mehmet Erdil, Murat Bülbül, Barış Gülenç
BACKGROUND: This study aimed to present clinical outcomes in patients with tibial plateau fractures who were treated with hybrid external fixators and describe the details of our technique. Schanz screws were synchronously applied and used as a joystick for fracture reduction. METHODS: The study population included 72 patients with bicondylar tibial plateau fractures classified as type 41-C2 according to the AO classification. Joint reduction was maintained using Schanz screws transmitted through tibial condyles as a joystick under fluoroscopy...
May 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29786041/fixation-versus-excision-of-osteochondral-fractures-after-patellar-dislocations-in-adolescent-patients-a-retrospective-cohort-study
#2
Hui Kang, Jian Li, Xu-Xu Chen, Tao Wang, Shi-Chang Liu, Hong-Chuan Li
Background: Patellar dislocation is one of the most common knee injuries in the adolescent population. It is often combined with osteochondral fracture. The purpose of this study was to compare the outcomes between fixation and excision of osteochondral fractures not involving the bearing surface in adolescent patients with patellar dislocations. Methods: Patients who underwent surgery for osteochondral fracture following patellar dislocation in our institution from 2007 to 2014 were retrospectively evaluated...
June 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29785447/posterior-cortical-breakage-leads-to-posterior-tibial-slope-change-in-lateral-hinge-fracture-following-opening-wedge-high-tibial-osteotomy
#3
Sung-Sahn Lee, Kyung-Wook Nha, Dae-Hee Lee
PURPOSE: This study was designed to analyze the relationship between changes in posterior tibial slope and the absence or presence of lateral hinge fracture, diagnosed in the sagittal and axial planes, as well as the coronal plane, by computed tomography (CT) following opening wedge high tibial osteotomy (HTO). METHODS: This study involved 55 patients (55 knees) undergoing opening wedge HTO for primary medial osteoarthritis. Lateral hinge fractures were evaluated on CT scans according to the Takeuchi classification and were also classified as subtypes A, B, and C, depending on anterior, posterior, and both anterior and posterior cortical disruptions, respectively, as determined by the sagittal and axial planes of CT scans which corresponded to the fracture line visible on coronal CT scans...
May 21, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29785392/periosteal-pseudotumor-in-complex-total-knee-arthroplasty-resembling-a-neoplastic-process
#4
Madhav Chowdhry, Matthew V Dipane, Edward J McPherson
This case report describes in detail an erosive distal diaphyseal pseudotumor that occurred 6 years after a complex endoprosthetic hinge total knee arthroplasty (TKA). A female patient had conversion of a knee fusion to an endoprosthetic hinge TKA at the age of 62. At her scheduled 6-year follow-up, she presented with mild distal thigh pain and radiographs showing a 6-7 cm erosive lytic diaphyseal lesion that looked very suspicious for a neoplastic process. An en bloc resection of the distal femur and femoral endoprosthesis was performed...
May 18, 2018: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29783271/mid-term-clinical-outcome-and-reconstruction-of-posterior-tibial-slope-after-uka
#5
Alois Franz, Christoph Kolja Boese, Andrej Matthies, Jörg Leffler, Christian Ries
Unicompartmental knee arthroplasty (UKA) has gained growing popularity over the last decades. The posterior tibial slope (PTS) has been shown to play a significant role for knee biomechanics and is thought to be crucial for clinical function of the UKA. We evaluated the clinical outcome at mid-term follow-up after UKA. Furthermore, the reconstruction of the individual PTS was analyzed. A total of 91 consecutive patients undergoing medial UKA for osteoarthritis were included. Patients were contacted by telephone for a survival analysis at a minimum of 30 months after surgery...
May 21, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29780621/thromboembolism-prophylaxis-in-orthopaedics-an-update
#6
Dimitrios A Flevas, Panayiotis D Megaloikonomos, Leonidas Dimopoulos, Evanthia Mitsiokapa, Panayiotis Koulouvaris, Andreas F Mavrogenis
Venous thromboembolism (VTE) is a serious complication during and after hospitalization, yet is a preventable cause of in-hospital death.Without VTE prophylaxis, the overall VTE incidence in medical and general surgery hospitalized patients is in the range of 10% to 40%, while it ranges up to 40% to 60% in major orthopaedic surgery. With routine VTE prophylaxis, fatal pulmonary embolism is uncommon in orthopaedic patients and the rates of symptomatic VTE within three months are in the range of 1.3% to 10%.VTE prophylaxis methods are divided into mechanical and pharmacological...
April 2018: EFORT Open Reviews
https://www.readbyqxmd.com/read/29780620/day-case-surgery-for-total-hip-and-knee-replacement-how-safe-and-effective-is-it
#7
Stefan Lazic, Oliver Boughton, Catherine F Kellett, Deiary F Kader, Loïc Villet, Charles Rivière
Multimodal protocols for pain control, blood loss management and thromboprophylaxis have been shown to benefit patients by being more effective and as safe (fewer iatrogenic complications) as conventional protocols.Proper patient selection and education, multimodal protocols and a well-defined clinical pathway are all key for successful day-case arthroplasty.By potentially being more effective, cheaper than and as safe as inpatient arthroplasty, day-case arthroplasty might be beneficial for patients and healthcare systems...
April 2018: EFORT Open Reviews
https://www.readbyqxmd.com/read/29780248/incidence-of-symptomatic-venous-thromboembolism-in-2372-knee-and-hip-replacement-patients-after-discharge-data-from-a-thromboprophylaxis-registry-in-montreal-canada
#8
Andréa Senay, Milanne Trottier, Josée Delisle, Andreea Banica, Benoit Benoit, G Yves Laflamme, Michel Malo, Hai Nguyen, Pierre Ranger, Julio C Fernandes
Background: Low-molecular-weight heparin (LMWH) is a recommended anticoagulant for thromboprophylaxis after major orthopedic surgery. Dabigatran etexilate is an oral anticoagulant recognized as noninferior to LMWH. We aimed to assess the incidence of symptomatic venous thromboembolic events (VTEs) after discharge in patients who underwent joint replacement, using a hospital registry. Patients and methods: Patients who underwent total knee and hip arthroplasty between September 2011 and March 2015 were selected...
2018: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/29780158/evaluation-of-the-factors-affecting-concerns-and-expectations-of-patients-undergoing-total-knee-arthroplasty-in-china
#9
Yang Li, Hong Cai, Hua Tian, Ke Zhang
BACKGROUND The aim of this study was to assess the level of concern and expectations of patients and their families of total knee arthroplasty (TKA), peri-operative procedures, postoperative rehabilitation, and outcome in a Chinese population. MATERIAL AND METHODS The study recruited 133 patients with osteoarthritis, scheduled to undergo primary elective TKA. Before surgery, the surgeon completed the Hospital for Special Surgery (HSS) Knee Score questionnaire on pain, function, range of motion (ROM), and muscle strength...
May 21, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29779992/radiologic-factors-affecting-ankle-pain-before-and-after-total-knee-arthroplasty-for-the-varus-osteoarthritic-knee
#10
Chang-Wan Kim, Heui-Chul Gwak, Jung-Han Kim, Chang-Rack Lee, Jeon-Gyo Kim, Minkyung Oh, Ji-Hwan Park
The aim of the present study was to evaluate the radiologic factors related to ankle pain before and after total knee arthroplasty (TKA) among patients with a varus osteoarthritic knee. Fifty-five patients (65 ankles) with a varus osteoarthritic knee who had undergone TKA and were followed up for >24 months were enrolled. For clinical assessment, the visual analog scale for pain and the American Orthopaedic Foot and Ankle Society ankle-hindfoot scale were used. For radiologic assessment, the mechanical axis deviation angle, talar tilt, tibial anterior surface angle, distal medial clear space, medial tibiotalar joint space, frontal tibial ground angle, and hindfoot alignment view angle were measured...
May 17, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29778656/laxity-and-contact-forces-of-total-knee-designed-for-anatomic-motion-a-cadaveric-study
#11
Gaia Salvadore, Patrick A Meere, Matthias A Verstraete, Jan Victor, Peter S Walker
BACKGROUND: Total knee designs that attempt to reproduce more physiological knee kinematics are gaining attention given their possible improvement in functional outcomes. This study examined if a total knee designed for anatomic motion, where the soft tissue balancing was intended to replicate anatomical tibiofemoral contact forces, can more closely reproduce the laxity of the native knee. METHODS: In an ex-vivo setting, the laxity envelope of the knees from nine lower extremity specimens was measured using a rig that reproduced surgical conditions...
May 16, 2018: Knee
https://www.readbyqxmd.com/read/29776854/comparison-of-functional-outcomes-between-the-first-and-second-knee-in-staged-bilateral-total-knee-arthroplasty-with-diverse-intervals-between-stages
#12
Alejandro Lizaur-Utrilla, Ricardo Serna-Berna, Maria F Vizcaya-Moreno, Daniel Martinez-Mendez, Luis Marco-Gomez, Fernando A Lopez-Prats
BACKGROUND: The objective of the study was to analyze if the length of interval time between stages influenced functional and quality of life outcomes in patients with staged bilateral primary total knee arthroplasty (TKA). METHODS: This is a retrospective comparative study between 93 patients with an interval between stages of 6-8 months (6-month group), 112 of 12-14 months (1-year group), and 108 of 24-26 months (2-year group). Outcome variables were Knee Society scores, Western Ontario and McMaster Universities, Short Form, and patient satisfaction...
April 25, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29776853/outcomes-of-a-fixed-bearing-medial-cemented-unicondylar-knee-arthroplasty-design-survival-analysis-and-functional-score-of-460-cases
#13
Philip Winnock de Grave, Justine Barbier, Thomas Luyckx, Alexander Ryckaert, Paul Gunst, Luc Van den Daelen
BACKGROUND: Unicompartmental knee arthroplasty (UKA) is an alternative to total knee arthroplasty in isolated medial osteoarthritis (OA). However, despite satisfactory reports on the clinical performance, UKA revision rates are still concerning. This retrospective study reports on the long-term survivorship, functional outcomes, and reasons for revision in fixed-bearing UKA implant. METHODS: Between 2005 and 2013, 460 consecutive patients were treated with medial UKA in one center using a fixed-bearing UKA system...
April 24, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29775918/determining-gender-by-taking-measurements-from-magnetic-resonance-images-of-the-patella
#14
Hacer Yasar Teke, Özge Ünlütürk, Elif Günaydin, Semra Duran, Sait Özsoy
BACKGROUND: A key step in making a positive identification in forensic medicine is the establishment of a biological profile, which involves determining factors such as gender, age, ancestry, and stature. The goal of this study was to determine if gender could be established by taking various measurements of the patella taken from magnetic resonance imaging (MRI) images and analyzing the variations by gender. METHODS: The sample group consisted of 220 patients (110 male and 110 female) whose patella were measured using MRI images of their left knee...
May 8, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29775379/decision-to-return-to-sport-participation-after-anterior-cruciate-ligament-reconstruction-part-ii-self-reported-and-functional-performance-outcomes
#15
Jennifer L Werner, Julie P Burland, Carl G Mattacola, Jenny Toonstra, Robert A English, Jennifer S Howard
CONTEXT:   Anterior cruciate ligament (ACL) reconstruction (ACLR) is the most commonly used method for helping athletes regain function and return to preinjury activity levels after ACL injury. Outcomes after ACLR have suggested that athletes return to a level of function that would support a return to sport participation; however, in a recent meta-analysis, pooled return rates were only 55%. It is unclear whether this discrepancy is a result of functional impairments. OBJECTIVE:   To compare patient-reported outcomes (PROs), dynamic balance, dynamic functional performance, strength, and muscular endurance in athletes who have returned to sport (RTS) and athletes who have not returned to sport (NRTS) after ACLR...
May 18, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29773404/large-tibial-geode-which-developed-several-years-after-a-left-medial-oxford-unicondylar-knee-arthroplasty-treated-with-curettage-and-bone-grafting
#16
Matthew K Curran, James R Murray
BACKGROUND: Tibial geodes are rare, and usually reported in association with rheumatoid arthritis. This case study reported the rare occurrence of a tibial geode in association with a left unicondylar knee arthroplasty (UKA). The patient, a 55-year-old male, was initially pleased with his UKA, which was performed at another institution. However, just over one year after the operation he began experiencing pain and discomfort. He did not present to the current institution until he was six years after UKA...
May 14, 2018: Knee
https://www.readbyqxmd.com/read/29773278/medial-tibial-periprosthetic-bone-resorption-and-its-effect-on-clinical-outcomes-after-total-knee-arthroplasty-cobalt-chromium-vs-titanium-implants
#17
Chan Yoon, Moon Jong Chang, Chong Bum Chang, Min Kyu Song, Jae Hoon Shin, Seung-Baik Kang
BACKGROUND: Recently, concerns arose over the medial tibial bone resorption of a novel cobalt-chromium implant. This study aimed at investigating the effects of tibial component material, design, and patient factors on periprosthetic bone resorption and at determining its association with clinical outcomes after total knee arthroplasty (TKA). METHODS: A total of 462 primary TKAs using 5 types of implants were included. To evaluate tibial periprosthetic bone resorption, we assessed radiolucent lines and change in bone mineral density at the medial tibial condyle (BMDMT )...
April 23, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29773277/-thicker-polyethylene-bearings-are-not-associated-with-higher-failure-rates-in-primary-total-knee-arthroplasty
#18
Nicholas J Greco, David A Crawford, Keith R Berend, Joanne B Adams, Adolph V Lombardi
BACKGROUND: Despite improvements in polyethylene bearing surface properties, only 1 previous study has examined the results of larger thickness bearings. The purpose of this study was to determine whether polyethylene thickness influenced patient outcomes and implant survival following modular total knee arthroplasty. METHODS: A retrospective review was performed of patients undergoing primary total knee arthroplasty from 2003 to 2014 in a single practice database...
April 23, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29772995/bilateral-spontaneous-quadriceps-tendon-ruptures-after-staged-bilateral-total-knee-arthroplasties-a-case-report
#19
Marine Coste, Jared M Newman, Neil V Shah, Ahmed M Eldib, Preston W Grieco, Aditya V Maheshwari
Quadriceps tendon ruptures are rare complications of total knee arthroplasty (TKA) and may be associated with preexisting tendon degeneration, vascular injuries during surgery, damage to the quadriceps tendon with over resection of the patella, or incomplete healing after a particular surgical approach. Moreover, postoperative causes include tissue necrosis due to component malalignment, trauma, and infection. Patient factors such as chronic systemic diseases, medications, increased body weight, and sedentary lifestyle could also be responsible...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29771899/excess-cost-and-inpatient-stay-of-treating-deep-spinal-surgical-site-infections
#20
James Barnacle, Dianne Wilson, Christopher Little, Christopher Hoffman, Nigel Raymond
AIM: To determine the excess cost and hospitalisation associated with surgical site infections (SSI) following spinal operations in a New Zealand setting. METHODS: We identified inpatients treated for deep SSI following primary or revision spinal surgery at a regional tertiary spinal centre between 2009 and 2016. Excess cost and excess length of stay (LOS) were calculated via a clinical costing system using procedure-matched controls. RESULTS: Twenty-eight patients were identified...
May 18, 2018: New Zealand Medical Journal
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