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https://www.readbyqxmd.com/read/28644076/a-novel-surgical-approach-to-avian-femorotibiotarsal-luxation-repair
#1
Anna E McRee, Thomas N Tully, Javier G Nevarez, Julia Sumner, Anderson Favero da Cunha
A 3-month-old male umbrella cockatoo (Cacatua alba) was presented because of acute non-weight-bearing lameness of the right leg. Marked soft tissue swelling was present around the femorotibiotarsal (stifle) joint, and the radiographic diagnosis was right medial femorotibiotarsal subluxation. Surgical management was elected, and the stifle joint was approached via a lateral parapatellar incision. Joint exploration revealed damage to the lateral meniscus, tendon of origin of the cranial tibial muscle, and cranial cruciate ligament...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28643466/anemonin-attenuates-osteoarthritis-progression-through-inhibiting-the-activation-of-il-1%C3%AE-nf-%C3%AE%C2%BAb-pathway
#2
Zuqiang Wang, Junlan Huang, Siru Zhou, Fengtao Luo, Wei Xu, Quan Wang, Qiaoyan Tan, Liang Chen, Jun Wang, Hangang Chen, Lin Chen, Yangli Xie, Xiaolan Du
The osteoarthritis (OA) progression is now considered to be related to inflammation. Anemonin (ANE) is a small natural molecule extracted from various kinds of Chinese traditional herbs and has been shown to inhibiting inflammation response. In this study, we examined whether ANE could attenuate the progression of OA via suppression of IL-1β/NF-κB pathway activation. Destabilization of the medial meniscus (DMM) was performed in 10-week-old male C57BL/6J mice. ANE was then intra-articularly injected into joint capsule for 8 and 12 weeks...
June 23, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28610433/reoperation-rates-after-combined-anterior-cruciate-ligament-and-anterolateral-ligament-reconstruction-a-series-of-548-patients-from-the-santi-study-group-with-a-minimum-follow-up-of-2-years
#3
Mathieu Thaunat, Gilles Clowez, Adnan Saithna, Maxime Cavalier, Eric Choudja, Thais D Vieira, Jean-Marie Fayard, Bertrand Sonnery-Cottet
BACKGROUND: Early clinical results of anterolateral ligament (ALL) reconstruction are promising, but concerns exist due to high rates of complications after other types of lateral extra-articular tenodesis. The rate of surgery after combined anterior cruciate ligament (ACL) and ALL reconstruction is not known. PURPOSE: To determine the rate of reoperation after combined ACL and ALL reconstruction. STUDY DESIGN: Case series; Level of evidence, 4...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28608727/osteoarthritis-of-the-anterior-cruciate-ligament-and-medial-tibial-plateau-a-cadaveric-study
#4
Jessica Immonen, Chris Siefring, Luke Sanders
The objective of this study was to analyze morphometric anatomy and damages with aging in cadaveric knee specimens specific to the cruciate ligaments, the articular cartilage of the tibial plateau, and the menisci. Morphometric analyses to cadaveric anatomy of the knee were performed using Image-Pro® software on 3 age populations: <70 years old, 70 to 79 years old, and ≥80 years old. An average thickness of the cruciate ligaments was assessed with 5 circumferential measurements per specimen using nylon thread...
June 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28600690/patients-older-than-40-years-with-unilateral-occupational-claims-for-new-shoulder-and-knee-symptoms-have-bilateral-mri-changes
#5
Tiffany C Liu, Nina Leung, Leonard Edwards, David Ring, Edward Bernacki, Melissa D Tonn
BACKGROUND: Minor events that occur in the workplace sometimes are evaluated with MRI, which may reveal age-related changes in the symptomatic body part. These age-related changes are often ascribed to the event. However, evidence of similar or worse pathophysiology in the contralateral joint would suggest that the symptoms might be new, but the pathophysiology is not. QUESTIONS/PURPOSES: Using a convenience sample of occupational injury claimants with bilateral MRI to evaluate unilateral knee or shoulder symptoms ascribed to a single event at work, we sought to determine whether MRI findings of the shoulder and knee are more often congruent or incongruent with new unilateral symptoms...
June 9, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28593387/increased-odds-of-patient-reported-success-at-2%C3%A2-years-after-anterior-cruciate-ligament-reconstruction-in-patients-without-cartilage-lesions-a-cohort-study-from-the-swedish-national-knee-ligament-register
#6
Eric Hamrin Senorski, Eduard Alentorn-Geli, Volker Musahl, Freddie Fu, Ferid Krupic, Neel Desai, Olof Westin, Kristian Samuelsson
PURPOSE: To investigate whether the surgical technique of single-bundle anterior cruciate ligament (ACL) reconstruction, the visualization of anatomic surgical factors and the presence or absence of concomitant injuries at primary ACL reconstruction are able to predict patient-reported success and failure. The hypothesis of this study was that anatomic single-bundle surgical procedures would be predictive of patient-reported success. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register during the period of 1 January 2005 through 31 December 2014...
June 7, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28582908/the-collagen-microstructural-changes-of-rat-menisci-and-tibiofemoral-cartilages-under-the-influence-of-mechanical-loading-an-in-vitro-wear-test-of-whole-joints
#7
Haoliuyang Cai, Zhixiu Hao, Liying Xiao, Chao Wan, Lingying Tong
BACKGROUND: Knee osteoarthritis (OA) is suggested to be induced by multi-factors, and mechanical environment is regarded as a risky factor. OBJECTIVE: To investigate the effect of isolated mechanical factor on cartilage. METHODS: An active wear test system was designed to perform parameters-controlled in vitro wear tests on rat knee joints with specific load magnitude, flexion-extension angle, and movement frequency. Six hind limbs of 9-month-old male Sprague-Dawley rats, with an additional spring on the medial side, were worn by using the custom-designed apparatus...
May 19, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28580268/endoscopic-resection-of-medial-extra-articular-cysts-of-the-knee
#8
Tun Hing Lui
Although most of the parameniscal cysts are very small and asymptomatic, some of them can present with a painful mass or snapping knee. Because parameniscal cysts are almost always associated with horizontal meniscal tears, arthroscopic partial meniscectomy of the involved part of meniscus and intra-articular cyst drainage has become the most accepted procedure. However, arthroscopic cyst decompression through partial meniscectomy to the meniscocapsular junction to expose the communication between the cyst and the knee joint may sacrifice some of the healthy parts of the meniscus especially when meniscal tear is peripheral...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28574418/clinical-study-on-the-arthroscopic-refreshing-treatment-of-anterior-cruciate-ligament-injury-combined-with-stable-medial-meniscus-ramp-injury
#9
J Yang, K Guan, J Z Wang
This study sought to investigate the clinical efficacy of arthroscopic refreshing treatment of anterior cruciate ligament (ACL) injury combined with stable medial meniscus ramp injury. Sixty-eight patients treated between January 2010 and January 2014 were included, and their clinical data were retrospectively analyzed. All patients, after being treated using ACL reconstruction, were divided into 2 groups according to meniscus injury treatment method. The observation group (31 cases) was treated by arthroscopic refreshing, which removed the tissue on both sides of the tear edge using a cutting knife, while the control group (37 cases) was treated using Fast-fix sutures...
June 1, 2017: Journal of Musculoskeletal & Neuronal Interactions
https://www.readbyqxmd.com/read/28560143/ultrasound-for-treating-meniscocapsular-separation-together-with-arthroscopy
#10
Yorikazu Akatsu, Ryuichiro Akagi, Taisuke Fukawa, Satoshi Yamaguchi, Takahisa Sasho
Magnetic resonance imaging (MRI) can be used to identify most types of meniscal tears; however, meniscocapsular separation of the medial meniscus can be difficult to identify with MRI. Here we present a technical note on the intrasurgical use of ultrasonography for the detection of meniscocapsular separation and confirmation of the beneficial effect of suturing on the stability of this lesion in a representative case of meniscocapsular separation that could be diagnosed with ultrasonography but not MRI preoperatively...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28556419/association-of-diabetes-mellitus-and-biochemical-knee-cartilage-composition-assessed-by-t2-relaxation-time-measurements-data-from-the-osteoarthritis-initiative
#11
Nattagan Chanchek, Alexandra S Gersing, Benedikt J Schwaiger, Michael C Nevitt, Jan Neumann, Gabby B Joseph, Nancy E Lane, Julia Zarnowski, Felix C Hofmann, Ursula Heilmeier, Charles E McCulloch, Thomas M Link
PURPOSE: To investigate the association of the presence and severity of diabetes mellitus (DM) with articular cartilage composition, using magnetic resonance imaging (MRI)-based T2 relaxation time measurements, and structural knee abnormalities. MATERIALS AND METHODS: In the Osteoarthritis Initiative 208, participants with DM (age 63.0 ± 8.9 years; 111 females) and risk factors for osteoarthritis (OA) or mild radiographic tibiofemoral OA (Kellgren-Lawrence [KL] grade ≤2) were identified and group-matched with 208 controls without DM (age 63...
May 26, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28552823/high-failure-rate-of-anterior-cruciate-ligament-reconstruction-with-bimeniscal-repair-acase-control-study
#12
H Gonçalves, C Steltzlen, P Boisrenoult, P Beaufils, N Pujol
BACKGROUND: Bimeniscal lesions are common in patients with anterior cruciate ligament (ACL) tears. However, bimeniscal repair is rarely performed during ACL reconstruction. OBJECTIVE: To assess outcomes after ACL reconstruction with bimeniscal repair. HYPOTHESIS: Bimeniscal lesions, even when repaired, are associated with poorer outcomes of ACL reconstruction. MATERIALANDMETHODS: A retrospective case-control design was used...
May 25, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28551397/automated-t2-mapping-of-the-menisci-from-magnetic-resonance-images-in-patients-with-acute-knee-injury
#13
Anthony Paproki, Craig Engstrom, Mark Strudwick, Katharine J Wilson, Rachel K Surowiec, Charles Ho, Stuart Crozier, Jurgen Fripp
RATIONALE AND OBJECTIVES: This study aimed to evaluate the accuracy of an automated method for segmentation and T2 mapping of the medial meniscus (MM) and lateral meniscus (LM) in clinical magnetic resonance images from patients with acute knee injury. MATERIALS AND METHODS: Eighty patients scheduled for surgery of an anterior cruciate ligament or meniscal injury underwent magnetic resonance imaging of the knee (multiplanar two-dimensional [2D] turbo spin echo [TSE] or three-dimensional [3D]-TSE examinations, T2 mapping)...
May 24, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28544596/deletion-of-the-prostaglandin-d2-receptor-dp1-exacerbates-aging-associated-and-instability-induced-osteoarthritis
#14
Yassine Ouhaddi, Sarah-Salwa Nebbaki, Lauris Habouri, Hassan Afif, Bertrand Lussier, Mohit Kapoor, Shuh Narumiya, Jean-Pierre Pelletier, Johanne Martel-Pelletier, Mohamed Benderdour, Hassan Fahmi
OBJECTIVE: The D prostanoid receptor 1 (DP1), a receptor for prostaglandin D2 (PGD2 ), plays important roles in inflammation and cartilage metabolism. However, its role in the pathogenesis of osteoarthritis (OA) remains unknown. We undertook this study to explore the roles of DP1 in the development of OA and to evaluate the efficacy of a DP1 selective agonist in the treatment of OA. METHODS: We compared the development of aging-associated OA and destabilization of the medial meniscus (DMM)-induced OA in DP1-deficient (DP1-/-) and wild-type (WT) mice...
May 23, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28539595/deletion-of-runx2-in-articular-chondrocytes-decelerates-the-progression-of-dmm-induced-osteoarthritis-in-adult-mice
#15
Lifan Liao, Shanxing Zhang, Jianhong Gu, Takeshi Takarada, Yukio Yoneda, Jian Huang, Lan Zhao, Chun-do Oh, Jun Li, Baoli Wang, Meiqing Wang, Di Chen
Runx2 may play an important role in development of osteoarthritis (OA). However, the specific role of Runx2 in articular chondrocyte function and in OA development in adult mice has not been fully defined. In this study, we performed the destabilization of the medial meniscus (DMM) surgery at 12-week-old mice to induce OA in adult Runx2 (Agc1CreER) mice, in which Runx2 was specifically deleted in Aggrecan-expressing chondrocytes by administering tamoxifen at 8-weeks of age. Knee joint samples were collected 8- and 12-weeks post-surgery and analyzed through histology, histomorphometry and micro-computed tomography (μCT)...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28536794/good-clinical-results-can-be-obtained-along-with-reduced-risk-of-tunnel-communication-with-a-new-technique-in-concomitant-meniscus-transplantation-and-acl-reconstruction
#16
Murat Bozkurt, Mesut Tahta, Mustafa Akkaya, Cetin Isik, Safa Gursoy
PURPOSE: The purpose of this study was to introduce our technical modification for concomitant meniscus transplantation and ACL reconstruction with preliminary results of our cases. METHODS: The current study comprised of two sections: first is the cadaveric study of 20 specimens. The distances between tunnel entry and exit points of tunnels for 27 meniscal transplants and ACL reconstruction in CT slices were measured. The second section was evaluation of our cases including six patients...
May 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28536729/clinics-in-diagnostic-imaging-177-medical-meniscus-bucket-handle-tear-with-medial-oblique-meniscomeniscal-ligament
#17
Poh Lye Paul See
A 29-year-old man with a previous football injury to his left knee presented with pain of the same knee. The patient twisted it as he was turning a corner quickly while going up the stairs, leading to internal rotation of his femur on his tibia with his knee in flexion. MR imaging revealed a bucket-handle tear of the medial meniscus, as well as a complete tear of the anterior cruciate ligament. However, image interpretation was complicated by the presence of a medial oblique meniscomeniscal ligament, a rare normal variant among intermeniscal ligaments of the knee...
May 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28534321/does-anatomic-single-bundle-acl-reconstruction-using-hamstring-autograft-produce-anterolateral-meniscal-root-tearing
#18
Sebastián Irarrázaval, Angel Masferrer-Pino, Maximiliano Ibañez, Tamer M A Shehata, María Naharro, Joan C Monllau
BACKGROUND: To determine if tibial tunnel reaming during anatomic single-bundle anterior cruciate ligament (ACL) reconstruction using hamstring autograft can result in anterolateral meniscal root injury, as diagnosed by magnetic resonance imaging (MRI). METHODS: A case series of 104 primary anatomic single-bundle ACL reconstructions using hamstring autograft was retrospectively reviewed. Pre- and post-operative (>1 year) MRIs were radiologically evaluated for each patient, with a lateral meniscus extrusion > 3 mm at the level of the medial collateral ligament midportion on a coronal MRI, to establish anterolateral meniscal root injury...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28533596/the-ratio-of-medial-and-lateral-hamstring-muscle-thickness-does-not-correlate-with-the-lateral-tibial-rotation-angle-in-the-standing-position-in-healthy-young-adults
#19
Dong-Soo Lee, Sung-Dae Choung, Seung-Won Lee, Hye Rim Suh, Jae-Hoon Shim
[Purpose] To investigate the relationship between the lateral tibial rotation angle during knee joint flexion and the medial and lateral hamstring muscle thickness ratio during knee joint extension while resting, doing nothing, in upright standing position. The lateral tibial torsion is an important factor of orthopedic knee joint diseases as well as other weight bearing joint diseases such as osteoarthritis, meniscus syndrome, anterior cruciate ligament rupture, etc. [Subjects and Methods] Thirty healthy young adults participated in this study...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28533592/articular-chondrocyte-alignment-in-the-rat-after-surgically-induced-osteoarthritis
#20
Hideaki Takahashi, Hiroyuki Tamaki, Noriaki Yamamoto, Hideaki Onishi
[Purpose] Chondrocytes in articular cartilage are aligned as columns from the joint surface. Notably, loss of chondrocyte and abnormalities of differentiation factors give rise to osteoarthritis (OA). However, the relationship between chondrocyte alignment and OA progression remains unclear. This study was performed to investigate temporal alterations in surgically-induced OA rats. [Subjects and Methods] Thirteen-week-old Wistar rats (n=30) underwent destabilized medial meniscus surgery in their right knee and sham surgery in their left knee...
April 2017: Journal of Physical Therapy Science
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