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https://www.readbyqxmd.com/read/30091067/an-evidence-based-etiology-study-of-synovial-cyst-of-knee-cruciate-ligament-a-real-or-pseudo-cyst
#1
Jun Xiao, Yong Hu, Kai-Ying Tang, Tahsin Tarik Torsha, Yu Xu, Zhi-Han Li, Xiang-Zhao Li, Zhan-Jun Shi
PURPOSE: Synovial cyst of knee cruciate ligament (SCKCL) is a rare condition but can cause severe knee pain. The understanding of its etiology is relatively poor. This current study aimed to elucidate the pathogenesis of SCKCL based on a series of histo- and cytopathological examination. METHODS: Ten SCKCL patients who underwent arthroscopy were enrolled, among five patients claimed past knee injury. Hematoxylin & eosin staining was conducted to the cyst wall tissue sections and Papanicolaou staining to the cyst fluid smear...
August 8, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/30077271/editorial-commentary-the-anterior-cruciate-ligament-is-a-dynamic-structure
#2
EDITORIAL
Freddie H Fu, Kanto Nagai
The anterior cruciate ligament (ACL) is a dynamic structure composed of distinct bundles that function synergistically to facilitate normal knee kinematics in concert with bony morphology. Characterized by individual uniqueness, the ACL is inherently subject to both anatomic and morphological variations as well as physiologic aging. No locus on the lateral wall of the intercondylar notch is truly isometric through full range of motion, suggesting the ACL is a dynamic structure. Future studies should explore dynamic ACL behavior in vivo...
August 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/30077270/dynamic-3-dimensional-mapping-of-isometric-anterior-cruciate-ligament-attachment-sites-on-the-tibia-and-femur-is-anatomic-also-isometric
#3
Brian Forsythe, Drew Lansdown, William A Zuke, Nikhil N Verma, Brian J Cole, Bernard R Bach, Nozomu Inoue
PURPOSE: The purpose of this study was to (1) map the length changes of the medial wall of the lateral femoral condyle (MWLFC) with respect to various points about the tibial anterior cruciate ligament (ACL) footprint to determine the area that demonstrates the least amount of length change through full range of motion and (2) to identify a range of flexion that would be favorable for graft tensioning. METHODS: Six fresh-frozen cadaveric knees were obtained from screened individuals with no prior history of arthritis, cancer, surgery, or any ligamentous knee injury...
August 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/30030580/intraoperative-mobile-bearing-movement-in-oxford-unicompartmental-knee-arthroplasty
#4
Kohei Kawaguchi, Hiroshi Inui, Shuji Taketomi, Ryota Yamagami, Keiu Nakazato, Nobuyuki Shirakawa, Sakae Tanaka
PURPOSE: Mobile-bearing Oxford unicompartmental knee arthroplasty has been used widely and successfully; however, there is no previous research on the intraoperative bearing movement. The purpose of this study was to characterise intraoperative bearing movement and investigate whether bearing movement relates to component positions, bearing size, intraoperative rotational kinematics and clinical results. METHODS: A trial tibial component, which was scaled every 2 mm, was used to measure the intraoperative movement of the mobile bearings...
July 21, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29968189/femoral-tunnel-length-in-anatomical-single-bundle-acl-reconstruction-is-correlated-with-height-weight-and-knee-bony-morphology
#5
Takanori Iriuchishima, Bunsei Goto, Tatsumasa Okano, Keinosuke Ryu, Freddie H Fu
PURPOSE: The purpose of this study was to reveal the correlation between femoral tunnel length in anatomical single-bundle anterior cruciate ligament (ACL) reconstruction and body size and/or knee morphology. METHODS: Thirty-one subjects undergoing anatomical single-bundle ACL reconstruction were included in this study (20 female, 11 male; median age 46, 15-63). Pre-operative height, body weight, and body mass index (BMI) were measured. In pre-operative magnetic resonance imaging, the thickness of the quadriceps tendon and the whole anterior-posterior (AP) length of the knee were measured using the sagittal slice...
July 2, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29953292/corrigendum
#6
(no author information available yet)
Blasiak A, Whyte GP, Matlak A, Brzóska R, Sadlik B. Morphologic properties of cartilage lesions in the knee arthroscopically prepared by the standard curette technique are inferior to lesions prepared by specialized chondrectomy instruments. Am J Sports Med. 2018;46(4):908-914. (Original DOI: 10.1177/0363546517745489) There is an error in the Abstract of this article. The Conclusion of the Abstract currently reads: Arthroscopic cartilage lesion preparation with SC instruments results in superior perpendicularity of surrounding cartilage walls to subchondral bone and greater consistency of debrided lesion depth, as compared with the standard debridement technique with curettes...
July 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29900170/the-stromal-vascular-fraction-from-fat-tissue-in-the-treatment-of-osteochondral-knee-defect-case-report
#7
Ramil Z Salikhov, Ruslan F Masgutov, Mikhail A Chekunov, Leysan G Tazetdinova, Galina Masgutova, Oleg V Teplov, Damir Galimov, Yuri Plakseichuk, Ramil Yagudin, Igor O Pankov, Albert Rizvanov
In this study we applied autologous fat tissue stromal vascular fraction (SVF) cells in combination with microfracturing technique in a 36-year-old man with an osteochondral lesion of the medial femoral condyle 8 months after the injury. Cell material was generated by fat tissue liposuction from the anterior abdominal wall with subsequent extraction of the SVF and injected through a mini-arthrotomy portal with subsequent fibrin sealant fixation. The follow-up period was 2 years. Clinical score improved from 23 to 96 according to IKDC and from 10 to 90 according to EQ-VAS at 24 months follow-up...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29881145/accuracy-of-radiographic-determination-of-the-posterior-femoral-wall-integrity-in-anterior-cruciate-ligament-reconstruction
#8
Joshua P Herzog, Edward D Arrington, Creighton C Tubb, Gautham Prabhakar, Nicholas J Zarkadis, Nicholas A Kusnezov
Objective: To evaluate the accuracy of radiographs in determining integrity of the posterior femoral cortex following ACL reconstruction. Methods: Fifty adult volunteers undergoing primary arthroscopic transtibial ACL reconstructions were prospectively enrolled into this study. Plain radiographs and fine-cut CT of the operative knee were obtained post-operatively. Three blinded orthopaedic surgeons were asked to measure the distance from the femoral tunnel to the posterior cortex on lateral radiographs...
June 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29805105/postdischarge-unscheduled-care-burden-after-lower-limb-arthroplasty
#9
Adam Tucker, Andrew Walls, Beverley Leckey, Janet C Hill, Glenn Phair, Damien B Bennett, Seamus O'Brien, David E Beverland
BACKGROUND: In contrast to postdischarge arthroplasty readmission rates, the unscheduled reattendance burden to primary care is under-reported. Understanding reasons for reattendance would allow for implementation of strategies to reduce this burden. The present study aims to quantify the out-of-hours (OOH) general practitioner and emergency department (ED) service reattendance burden and readmission rate after primary total hip arthroplasty and total knee arthroplasty, with estimation of the associated costs...
May 3, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29791702/all-inside-technique-for-acl-reconstruction-using-a-flipcutter%C3%A2-and-the-tightrope%C3%A2-system
#10
Nicos Papaloucas
There have been many innovations in the field of ACL-reconstruction over the years, including the FlipCutter® and TightRope® system (both from Arthrex Inc.). The FlipCutter® is a combined guide pin and reamer that allows minimally invasive socket-creation from the inside out, especially in difficult-to-reach areas. The TightRope® is a further development of the well-known Endobutton™ (Smith & Nephew plc) that consists of a four-point knotless locking system. Its main advantage is its adjustability, which makes it possible to fill the entire bone socket with the graft without any empty space...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29719010/fat-fracture-a-rare-cause-of-anterior-and-medial-knee-pain-in-a-professional-baseball-player
#11
Ronak M Patel, Lonnie Soloff, Jason Genin, Pamela Lund, Mark S Schickendantz
Blunt trauma to the anterior knee typically results in a contusion or fracture of the patella. Additionally, injury to the extensor mechanism may come from a partial or full disruption of the patellar or quadriceps tendon. A professional baseball player suffered an injury to his knee after he collided with an outfield wall. Acute swelling in the suprapatellar soft tissues concealed a palpable defect, which initially was suspected to be an injury to the quadriceps tendon. Magnetic resonance imaging of the knee revealed an intact extensor mechanism; moreover, a fracture of the subcutaneous fat anterior to the quadriceps tendon was evident and diagnosed as a fat fracture...
April 2018: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29705911/drilling-through-anteromedial-portal-with-a-femoral-aiming-device-ensures-a-sufficient-length-and-a-proper-graft-position-and-prevents-posterior-wall-breakage-during-anterior-cruciate-ligament-reconstruction
#12
Hasan Bombaci, Faruk Aykanat
OBJECTIVE: The aim of this study was to evaluate the characteristics of the femoral tunnel (FT) which was drilled through the AM portal by using a femoral aimer device and AP stability of the knee. METHODS: Thirty-eight patients, with the mean age 29.6 (range: 20-43) years, were evaluated after ACL reconstruction. The mean follow-up time was 31.9 (range: 16-57) months. The FT was drilled using a femoral aimer with different offset according to the graft size measured, through the AM portal...
April 28, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29661729/myositis-ossificans-another-condition-with-usp6-rearrangement-providing-evidence-of-a-relationship-with-nodular-fasciitis-and-aneurysmal-bone-cyst
#13
Elise M Bekers, Astrid Eijkelenboom, Katrien Grünberg, Rona C Roverts, Jacky W J de Rooy, Ingrid C M van der Geest, Joost M van Gorp, David Creytens, Uta Flucke
Myositis ossificans is defined as a self-limiting pseudotumor composed of reactive hypercellular fibrous tissue and bone. USP6 rearrangements have been identified as a consistent genetic driving event in aneurysmal bone cyst and nodular fasciitis. It is therefore an integral part of the diagnostic workup when dealing with (myo)fibroblastic lesions of soft tissue and bone. Two cases of myositis ossificans with USP6 rearrangement were published so far. We determine herein the incidence of USP6 rearrangement in myositis ossificans using USP6 fluorescence in situ hybridization analysis (FISH)...
June 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29643169/safety-and-feasibility-evaluation-of-tourniquets-for-total-knee-replacement-safe-tkr-study-protocol
#14
Peter Dh Wall, Imran Ahmed, Andrew Metcalfe, Andrew J Price, Kate Seers, Charles E Hutchinson, Helen Parsons, Jane Warwick, Bushra Rahman, Jaclyn Brown, Martin Underwood
INTRODUCTION: This study is designed to determine whether a full randomised controlled trial (RCT) examining the clinical effectiveness and safety of total knee replacement surgery with or without a tourniquet is warranted and feasible. METHOD AND ANALYSIS: Single centre, patient-blinded and assessor-blinded RCT. A computer-generated randomisation service will allocate 50 participants into one of two trial treatments, surgery with or without a tourniquet. The primary objective is to estimate recruitment, crossovers and follow-up of patients...
April 10, 2018: BMJ Open
https://www.readbyqxmd.com/read/29613926/motor-evoked-potential-analysis-of-femoral-nerve-status-during-the-direct-anterior-approach-for-total-hip-arthroplasty
#15
Tetsuro Ishimatsu, Koichi Kinoshita, Jun Nishio, Jun Tanaka, Satohiro Ishii, Takuaki Yamamoto
BACKGROUND: During the direct anterior approach for total hip arthroplasty, a retractor is placed on the anterior wall of the acetabulum to retract the iliopsoas muscle. This step with the retractor has been reported to put the patient at risk for femoral nerve damage. The present study aimed to clarify the effects of the anterior acetabular retractor on the status of the femoral nerve during the direct anterior approach on the basis of transcranial motor-evoked potential (MEP) analysis...
April 4, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29556489/training-effects-of-the-fifa-11-kids-on-physical-performance-in-youth-football-players-a-randomized-control-trial
#16
Carlos Pomares-Noguera, Francisco Ayala, Francisco Javier Robles-Palazón, Juan F Alomoto-Burneo, Alejandro López-Valenciano, José L L Elvira, Sergio Hernández-Sánchez, Mark De Ste Croix
Objective: To analyze the training effects of the FIFA 11+ kids on several parameters of physical performance in male youth football players. Materials and methods: Twenty-three youth players were randomized within each team into two groups (control vs. intervention). The intervention group performed the FIFA 11+ kids programme 2 times a week for 4 weeks; the control groups completed their normal warm-up routines. Thirteen physical performance measures {range of motion (hip, knee, and ankle joints), dynamic postural control (measured throughout the Y balance test), 20 m sprint time, slalom dribble with a ball, agility, vertical jumping height [counter movement jump (CMJ) and drop jump (DJ)], horizontal jump distance, accuracy when volleying a ball [measured throughout the Wall Volley test]} were assessed...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29522550/structure-function-relationships-of-equine-menisci
#17
Iris Ribitsch, Christian Peham, Nicole Ade, Julia Dürr, Stephan Handschuh, Johannes Peter Schramel, Claus Vogl, Heike Walles, Monika Egerbacher, Florien Jenner
Meniscal pathologies are among the most common injuries of the femorotibial joint in both human and equine patients. Pathological forces and ensuing injuries of the cranial horn of the equine medial meniscus are considered analogous to those observed in the human posterior medial horn. Biomechanical properties of human menisci are site- and depth- specific. However, the influence of equine meniscus topography and composition on its biomechanical properties is yet unknown. A better understanding of equine meniscus composition and biomechanics could advance not only veterinary therapies for meniscus degeneration or injuries, but also further substantiate the horse as suitable translational animal model for (human) meniscus tissue engineering...
2018: PloS One
https://www.readbyqxmd.com/read/29517686/the-safety-of-isometric-exercise-rethinking-the-exercise-prescription-paradigm-for-those-with-stage-1-hypertension
#18
Jonathan D Wiles, Katrina Taylor, Damian Coleman, Rajan Sharma, Jamie M O'Driscoll
Few studies have investigated the relative safety of prescribing isometric exercise (IE) to reduce resting blood pressure (BP). This study aimed to ascertain the safety of the hemodynamic response during an IE wall squat protocol.Twenty-six hypertensive (BP of 120-139 mm Hg systolic and/or 80-90 mm Hg diastolic) males (45 ± 8 years; 1.78 ± 0.07 m; 89.7 ± 12.3 kg; mean ± SD), visited the laboratory on 2 separate occasions. Heart rate (HR) and BP were measured at rest and continuously throughout exercise...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29459082/ideal-screw-positions-for-multiple-screw-fixation-in-femoral-neck-fractures-study-of-proximal-femur-morphology-in-a-japanese-population
#19
Yuta Nakanishi, Takafumi Hiranaka, Masahiro Shirahama, Masafumi Uesugi, Kenjiro Okimura, Masanori Tsubosaka, Yousaku Shibata, Yuuichi Hida, Takaaki Fujishiro, Harunobu Uemoto
BACKGROUND: Despite the fact that multiple screw fixation is a common option of surgical treatment for femoral neck fractures, there is a paucity of precise morphological study of the femoral neck. To identify appropriate positions and spacing of hip screws for multiple-screw femoral neck fracture fixation, proximal femur morphology in Japanese patients was studied. METHOD: One hundred hips in fifty knee arthroplasty candidates were studied. Following full limb CT, defined slices were created and anatomical variables measured...
May 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29455498/-radiologic-observation-of-the-blood-supply-changes-around-the-knee-with-osteoarthritis
#20
Jin-Song Liu, Zhi-Yao Li
OBJECTIVE: To compare blood supply changes around the knee joint between normal and osteoarthritis knee. METHODS: From June 2014 to June 2015, 30 patients with knee osteoarthritis and 30 healthy adults were recruited. In osteoarthritis group, there were 9 males and 21 females, with a mean age of (65.967±7.132) years old(ranged, 53 to 82 years old), and the mean arterial pressure was(93.462±7.633) mmHg. In control group, there were 9 males and 21 females, with a mean age of (62...
August 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
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