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https://www.readbyqxmd.com/read/28229355/femoral-shaft-osteotomy-for-obligate-outward-rotation-due-to-scfe
#1
Peter M Stevens, Lucas Anderson, Bruce A MacWilliams
Slipped capital femoral epiphysis (SCFE) is an adolescent disease that leads to retroversion of the femoral neck and shaft, relative to the head. Observing that patients with SCFE must walk with an outward foot progression angle and externally rotate the leg in order to flex the hip, we have been performing a femoral shaft rotational osteotomy wherein we rotate the lower femur 45° inward, relative to the upper femur. By correcting retroversion, our goal is to improve functional hip and knee motion, thereby mitigating the effects of SCFE impingement...
February 22, 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/28228343/ultrasound-guided-femoral-nerve-blockage-in-a-patellar-dislocation-an-effective-technique-for-emergency-physicians
#2
Sami Eksert, Sinan Akay, Murtaza Kaya, Ali Kantemir, Kenan Keklikci
BACKGROUND: Patellar dislocation is an orthopedic emergency and its reduction can be painful. The aim of this case is to show that the ultrasound-guided femoral nerve blockage can be effectively used in the pain management of patellar reduction in the emergency department (ED). CASE REPORT: A 21-year-old man was admitted to our ED after suffering a fall down a flight of stairs. The initial physical examination and plain radiography showed a patellar dislocation in the right knee...
February 19, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28228051/patellar-complications-in-single-versus-double-tunnel-medial-patellofemoral-ligament-reconstruction
#3
Riazuddin Mohammed, Neil Hunt, A J Gibbon
PURPOSE: Hamstring graft fixation on the patellar side during medial patellofemoral ligament (MPFL) reconstruction is usually with transosseous tunnels and can frequently lead to further problems. The aim of our study was to compare and analyse patellar complications in single patellar tunnel versus double tunnel hamstring graft fixation. METHODS: Twenty-nine knees with MPFL reconstructions (group S) in which the hamstring tendon graft was transfixed using a suspensory fixation method in a single tunnel drilled across the patella were analysed in comparison with 29 knees (group D) with interference fixation of the graft through two tunnels drilled up to a predetermined depth in the patella...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28224070/combined-particulated-juvenile-cartilage-allograft-transplantation-and-medial-patellofemoral-ligament-reconstruction-for-symptomatic-chondral-defects-in-the-setting-of-recurrent-patellar-instability
#4
Armin Arshi, Dean Wang, Kristofer J Jones
Successful management of patellar osteochondral lesions has proved difficult, with unreliable outcomes reported using traditional cartilage repair and restoration procedures. Unique considerations for this type of defect include the multiplanar contours of the articular surface of the patella, high compressive and shear forces with knee range of motion that may disrupt graft healing, and the potential need for concomitant surgery to address patellar malalignment and instability. We describe our preferred method for treatment of a symptomatic chondral defect in the setting of recurrent patellar instability using particulated juvenile articular cartilage allograft transplantation and medial patellofemoral ligament reconstruction with semitendinosus allograft...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28217567/painful-knee-prosthesis-ct-scan-to-assess-patellar-angle-and-implant-malrotation
#5
REVIEW
Antonio Spinarelli, Vito Pesce, Caterina Campagna, Giuseppe Maccagnano, Biagio Moretti
BACKGROUND: According to literature, the incidence of pain in knee prostheses is on the increase. In the last decade Authors have focused attention on rotational alignment of the prosthetic components. The aim of this study is to evaluate the efficiency of a new angle, which we define as patellar angle, in order to achieve early diagnosis of malrotation. METHODS: We set up a retrospective observational study recruiting 100 subjects who had undergone total knee prosthesis...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28214938/baseline-trace-metals-in-patella-caerulea-in-a-central-tyrrhenian-ecosystem-pontine-islands-archipelago-and-lazio-region-coastal-sites-italy
#6
Marcelo Enrique Conti, Giustino Mele, Maria Grazia Finoia
In this study, we tested the aptitude of the gastropod mollusk Patella caerulea as biomonitor of elemental pollution in seawater of a central Tyrrhenian ecosystem (Pontine Islands archipelago and Lazio region coastal sites, Italy). Concentrations of Cd, Cr, Cu, Ni, Pb, and Zn were measured in 120 individuals collected in six strategic locations in two sampling campaigns during 2011 and 2012. Samples of surrounding seawater were also collected in the same sites and tested for the same metals in order to obtain the respective concentration factors (CFs)...
February 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28210824/ultrasound-palpation-for-fast-in-situ-quantification-of-articular-cartilage-stiffness-thickness-and-relaxation-capacity
#7
M Schöne, R M Schulz, H Tzschätzsch, P Varga, K Raum
Most current cartilage testing devices require the preparation of excised samples and therefore do not allow intra-operative application for diagnostic purposes. The gold standard during open or arthroscopic surgery is still the subjective perception of manual palpation. This work presents a new diagnostic method of ultrasound palpation (USP) to acquire applied stress and strain data during manual palpation of articular cartilage. With the proposed method, we obtain cartilage thickness and stiffness. Moreover, repeated palpations allow the quantification of relaxation effects...
February 16, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28210659/medial-patellofemoral-ligament-reconstruction-femoral-tunnel-accuracy-relationship-to-disease-specific-quality-of-life
#8
Laurie A Hiemstra, Sarah Kerslake, Mark Lafave
BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction is a procedure aimed to reestablish the checkrein to lateral patellar translation in patients with symptomatic patellofemoral instability. Correct femoral tunnel position is thought to be crucial to successful MPFL reconstruction, but the accuracy of this statement in terms of patient outcomes has not been tested. PURPOSE: To assess the accuracy of femoral tunnel placement in an MPFL reconstruction cohort and to determine the correlation between tunnel accuracy and a validated disease-specific, patient-reported quality-of-life outcome measure...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28209399/primary-non-germinal-center-b-cell-like-diffuse-large-b-cell-lymphoma-arising-from-the-patella
#9
Shun Yamamoto, Takaaki Tanaka, Kazuya Sato, Ryosuke Denda, Yoshio Kumagae, Hitoshi Sekiya, Masaru Kojima
No abstract text is available yet for this article.
February 13, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28207972/anatomical-study-of-the-inferior-patellar-pole-and-patellar-tendon
#10
M Edama, I Kageyama, M Nakamura, T Kikumoto, E Nakamura, W Ito, T Takabayashi, T Inai, H Onishi
In this study, detailed investigations of the shape of the inferior patellar pole, the site of the patellar tendon attachment, and the length and course of the patellar tendon were performed with the aim of examining the anatomical factors involved in the developmental mechanism of patellar tendinitis.  The investigation examined 100 legs from 50 cadavers. The inferior patellar pole was classified into three types: Pointed, Intermediate, and Blunt. The attachment of the patellar tendon to the inferior patellar pole was classified into two types: an anterior and a posterior...
February 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28205230/forensic-identification-of-bipartite-patella-misdiagnosed-as-patella-fracture
#11
Jingyuan Ma, Fang Shi, Chongya Huang, Shanzhi Gu
Bipartite patella is recognized as a developmental anomaly of ossification. Most of them are asymptomatic and are discovered incidentally. Bipartite patella is sometimes misdiagnosed as a patella fracture, because the x-ray images of both these conditions may appear very similar. In this case, the patient complained of left knee pain after x-ray films revealed a fracture-like line in the left patella. The patient was then diagnosed as having a patella fracture. In China, the injury degree is categorized as serious injury, minor injury, and trivial injury...
February 15, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28199881/the-influence-of-early-degenerative-changes-on-the-vulnerability-of-articular-cartilage-to-impact-induced-injury
#12
Joshua Workman, Ashvin Thambyah, Neil Broom
BACKGROUND: Recently, the structural changes in a bovine model of early degeneration were validated by our research group to be analogous to that in early human osteoarthritis. The hypothesis of this study was that the structural changes associated with increasing levels of degeneration would lead to higher levels of tissue damage in response to impact induced injury. METHODS: A total of forty bovine patellae were obtained for this study. Cartilage-on-bone samples were extracted from the distal lateral quarter, a region known to be affected by varying levels of degeneration...
January 4, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28196392/patellofemoral-osteochondral-allografts-can-we-improve-the-matching-process
#13
Jason R Determann, James E Fleischli, Donald F D'Alessandro, Dana P Piasecki
An important consideration for the successful use of fresh osteochondral allografts for the patellofemoral joint is selection of appropriately sized donor allografts. This is particularly challenging for matching grafts to the patella because of the substantial variability in articular contour that exists. At present, selection of donor patellae is based only on the width of the proximal tibia, with no established means of quantifying basic patellar size, facet configuration, or articular contour. We hypothesized that using a combination of standard radiographic measurements to generate an accurate profile of the recipients native patella would result in a more accurate donor graft...
February 14, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28193295/biomechanical-comparison-of-single-and-double-bundle-medial-patellofemoral-ligament-reconstruction
#14
Qing Wang, Wenhan Huang, Daozhang Cai, Huayang Huang
BACKGROUND: Recurrent patellar dislocation is common clinically, primarily in adolescents. However, the biomechanical properties of single- and double-bundle medial patellofemoral ligament (MPFL) reconstruction remain poorly understood. METHODS: Six fresh frozen adult cadaveric knee specimens were obtained for this study. Each specimen was fixed at 0° to test the force needed when the patella was laterally shifted 10 mm at a speed of 0.5 mm/s, and the test was repeated three times...
February 13, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28192827/the-use-of-mesh-plates-for-difficult-fractures-of-the-patella
#15
David Volgas, Tina K Dreger
Patella fractures present some of the more complicated fracture patterns in orthopaedic trauma care. This is partially due to the small size of the fragments but also the articular nature of each fragment. Fixation methods such as cerclage wiring, excision of smaller fragments, and screw fixation of larger fragments all have their own challenges. Our study examined our Level I trauma center's experience with variable angle locked 2.7 mm titanium plates for treatment of comminuted patella fractures or treatment of patellar nonunion...
February 13, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28186598/-a-boy-with-meier-gorlin-syndrome-carrying-a-novel-orc6-mutation-and-uniparental-disomy-of-chromosome-16
#16
Juan Li, Yu Ding, Guoying Chang, Qing Cheng, Xin Li, Jian Wang, Xiumin Wang, Yiping Shen
OBJECTIVE: To identify the genetic cause for a 11-year-old Chinese boy with Meier-Gorlin syndrome (MGS). METHODS: Chromosomal microarray analysis (CMA) was used to detect potential variations, while whole exome sequencing (WES) was used to identify sequence variants. Sanger sequencing was used to confirm the suspected variants. RESULTS: The boy has featured short stature, microtia, small patella, slender body build, craniofacial anomalies, and small testes with normal gonadotropin...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28179061/plateau-patella-angle-an-option-for-the-evaluation-of-patellar-height-in-patients-with-patellar-instability
#17
Marcelo Batista Bonadio, Camilo Partezani Helito, Julio Augusto do Prado Torres, Riccardo Gomes Gobbi, José Ricardo Pécora, Gilberto Luis Camanho, Marco Kawamura Demange
BACKGROUND: Patellar instability is a debilitating disease. An important factor related to recurrent dislocation is patellar height. A new method of patellar height measurement, the plateau-patella angle (PPA), was proposed in 2011. However, to date, there is no study evaluating the use of this method in patients with patellar instability. The aim of this study was to evaluate the PPA in patients with recurrent patellar dislocation. METHODS: This was a retrospective evaluation of the radiographs of 78 knees with patellar instability...
February 5, 2017: Knee
https://www.readbyqxmd.com/read/28178962/the-outcomes-of-the-modified-fulkerson-osteotomy-procedure-to-treat-habitual-patellar-dislocation-associated-with-high-grade-trochlear-dysplasia
#18
Hong Chen, Daohong Zhao, Jingming Xie, Qihui Duan, Jun Zhang, Zhidan Wu, Jia Jiang
BACKGROUND: Habitual patellar dislocation is not common in clinical practice, but it has a deep impact on the patient's lifestyle and movement. There has been no large case-control study on habitual patellar dislocation, and the management of it is still controversial. The aim of this study was to observe the efficacy of the modified Fulkerson procedure on patients with habitual patellar dislocation with high-grade trochlear dysplasia without trochleoplasty and to evaluate the results of this procedure...
February 8, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28177650/ct-angiography-of-suspected-peripheral-artery-disease-comparison-of-contrast-enhancement-in-the-lower-extremities-of-patients-undergoing-and-those-not-undergoing-hemodialysis
#19
Takanori Masuda, Yoshinori Funama, Takeshi Nakaura, Naoyuki Imada, Tomoyasu Sato, Tomokazu Okimoto, Kazuo Awai
OBJECTIVE: The objective of our study was to compare contrast enhancement on CT angiography (CTA) images of the lower extremity in patients with suspected peripheral artery disease who did not undergo hemodialysis (HD) and patients who were scanned before or after HD. MATERIALS AND METHODS: We divided 287 consecutive patients who underwent CTA of the lower extremity on a 64-MDCT scanner into three groups: group 1 patients (n = 151) were not dependent on HD, group 2 patients (n = 70) were dependent on HD and underwent HD less than 24 hours after CTA, and group 3 (n = 66) were dependent on HD and underwent HD less than 24 hours before CTA...
February 8, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28174512/allergic-diseases-in-the-elderly-biological-characteristics-and-main-immunological-and-non-immunological-mechanisms
#20
REVIEW
Maria Teresa Ventura, Nicola Scichilone, Roberto Paganelli, Paola Lucia Minciullo, Vincenzo Patella, Matteo Bonini, Giovanni Passalacqua, Carlo Lombardi, Livio Simioni, Erminia Ridolo, Stefano R Del Giacco, Sebastiano Gangemi, Giorgio Walter Canonica
Life expectancy and the number of elderly people are progressively increasing around the world. Together with other pathologies, allergic diseases also show an increasing incidence in geriatric age. This is partly due to the growing emphasis on a more accurate and careful diagnosis of the molecular mechanisms that do not allow to ignore the real pathogenesis of many symptoms until now unknown, and partly to the fact that the allergic people from 20 years ago represent the elderly population now. Moreover, environmental pollution predisposes to the onset of allergic asthma and dermatitis which are the result of internal pathologies more than the expression of allergic manifestations...
2017: Clinical and Molecular Allergy: CMA
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