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medial collateral ligament

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https://www.readbyqxmd.com/read/28326411/medial-tibial-spackling-to-lessen-chronic-medial-tibial-soft-tissue-irritation
#1
J Ryan Martin, Tyler Steven Watters, Daniel L Levy, Jason M Jennings, James P Boyle, Douglas A Dennis
We describe a unique, utilitarian reconstructive treatment option known as tibial "spackling" for chronic, localized medial joint line pain corresponding with progressive radiographic peripheral medial tibial bone loss beneath a well-fixed revision total knee arthroplasty tibial baseplate. It is believed that this localized pain is due to chronic irritation of the medial capsule and collateral ligament from the prominent medial edge of the tibial component. In the setting of failed nonoperative treatment, our experience with utilizing bone cement to reconstruct the medial tibial bone defect and create a smooth medial tibial surface has been successful in eliminating chronic medial soft tissue irritation...
September 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28319734/novel-mechanical-impact-simulator-designed-to-generate-clinically-relevant-anterior-cruciate-ligament-ruptures
#2
Nathaniel A Bates, Nathan D Schilaty, Christopher V Nagelli, Aaron J Krych, Timothy E Hewett
BACKGROUND: Over 250,000 anterior cruciate ligament ruptures occur each year; therefore, it is important to understand the underlying mechanisms of these injuries. The objective of the current investigation was to develop and analyze an impact test device that consistently produces anterior cruciate ligament failure in a clinically relevant manner. METHOD: A mechanical impact simulator was developed to simulate the ground reaction force impulse generated from landing in a physiologic and clinically relevant manner...
March 10, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28314869/-operative-treatment-of-terrible-triad-injury-of-the-elbow-open-reduction-and-internal-fixation
#3
R Babst, C Schraner, F J P Beeres
AIM OF SURGERY: Reconstruction of the most important ligamentous and osseus structures of the elbow after terrible triad injury via the radial head to the lateral collateral ligament complex (LCL) and if necessary beginning at the coronoid process. The aim is a stable concentrically guided elbow with early functional follow-up treatment. The approach depends on the intraoperatively tested stability. INDICATIONS: Osteoligamentous terrible triad injury pattern with or without subluxation position following reduction and temporary immobilization...
March 17, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28295121/outcomes-at-a-minimum-of-2-years-after-medial-collateral-ligament-reconstruction-using-partial-thickness-quadriceps-tendon-bone-autograft
#4
Iftach Hetsroni, Gideon Mann
This study reports outcomes at a minimum of 2 years after a technique using quadriceps tendon-bone autograft for medial collateral ligament reconstruction. This technique effectively restored medial stability in medial collateral ligament-deficient knees. It is particularly valuable when nonirradiated allograft is unavailable or harvesting medial knee restraints (semitendinosus) for medial collateral ligament reconstruction is to be avoided. [Orthopedics. 201x; xx(x):xx-xx.].
March 14, 2017: Orthopedics
https://www.readbyqxmd.com/read/28293698/anterolateral-ligament-abnormalities-are-associated-with-peripheral-ligament-and-osseous-injuries-in-acute-ruptures-of-the-anterior-cruciate-ligament
#5
Camilo Partezani Helito, Paulo Victor Partezani Helito, Renata Vidal Leão, Marco Kawamura Demange, Marcelo Bordalo-Rodrigues
PURPOSE: Few studies have used MRI to identify the ALL. As it was shown that it is not possible to precisely characterize this ligament in all examination, it is important to identify concomitant lesions that can help in diagnosing ALL abnormalities. It is important to characterise this injury due to its association with anterolateral knee instability. Thus, the present study was performed to determine the frequency of ALL injuries in patients with acute ACL rupture and to analyse its associated knee lesions...
March 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28292199/high-resolution-mri-of-the-ulnar-and-radial-collateral-ligaments-of-the-wrist
#6
Taiki Nozaki, Wei Der Wu, Yasuhito Kaneko, Gregory Rafijah, Lily Yang, Dave Hitt, Hiroshi Yoshioka
Background Accurate diagnosis of injuries to the collateral ligaments of the wrist is technically challenging on MRI. Purpose To investigate usefulness of high-resolution two-dimensional (2D) and isotropic three-dimensional (3D) magnetic resonance imaging (MRI) for identifying and classifying the morphology of the ulnar and radial collateral ligaments (UCL and RCL) of the wrist. Material and Methods Thirty-seven participants were evaluated using 3T coronal 2D and isotropic 3D images by two radiologists independently...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28268001/return-to-duty-following-combat-related-multi-ligamentous-knee-injury
#7
Aaron E Barrow, Andrew J Sheean, Travis C Burns
INTRODUCTION: This retrospective cohort study characterized injury patterns, treatment practices, and identified the return to duty (RTD) rate following combat-related multi-ligament knee injuries (MLKI). PATIENTS AND METHODS: We evaluated injury characteristics and treatment methods of 46 military service members who had sustained a MLKI during combat activity. The primary clinical outcome measure was ability to return to active military duty. Secondary outcomes included subjective pain score, knee motion, knee instability, and use of ambulatory assistive device...
February 22, 2017: Injury
https://www.readbyqxmd.com/read/28253068/in-vitro-quantification-of-medial-collateral-ligament-tension-in-the-elbow
#8
Louis M Ferreira, Graham J W King, James A Johnson
The anterior bundle of the medial collateral ligament (AMCL) of the elbow is commonly injured in patients with elbow dislocations and in throwing athletes. This in-vitro study quantified tension in the native AMCL throughout elbow flexion for different arm positions. We conducted passive and simulated active elbow flexion in seven fresh-frozen cadaveric upper extremities using an established motion simulator. Motions were performed in the valgus and vertical positions from 20-120º while measuring AMCL tension using a custom transducer...
March 2, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28249855/physical-examination-of-the-elbow-what-is-the-evidence-a-systematic-literature-review
#9
REVIEW
Elisa L Zwerus, Matthijs P Somford, François Maissan, Jelle Heisen, Denise Eygendaal, Michel Pj van den Bekerom
OBJECTIVE: Primary to provide an overview of diagnostic accuracy for clinical tests for common elbow (sport) injuries, secondary accompanied by reproducible instructions to perform these tests. DESIGN: A systematic literature review according to the PRISMA statement. DATA SOURCES: A comprehensive literature search was performed in MEDLINE via PubMed and EMBASE. ELIGIBILITY CRITERIA: We included studies reporting diagnostic accuracy and a description on the performance for elbow tests, targeting the following conditions: distal biceps rupture, triceps rupture, posteromedial impingement, medial collateral ligament (MCL) insufficiency, posterolateral rotatory instability (PLRI), lateral epicondylitis and medial epicondylitis...
March 1, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28224199/mechanically-aligned-total-knee-arthroplasty-carries-a-risk-of-bony-gap-changes-and-flexion-extension-axis-displacement
#10
Yasuo Niki, Tomoki Sassa, Katsuya Nagai, Kengo Harato, Shu Kobayashi, Taro Yamashita
PURPOSE: The flexion-extension axis (FEA) of the femur is substantially changed after mechanically aligned total knee arthroplasty (TKA) due to a discrepancy in bone cut thickness between the posterior and distal femoral regions. This study assessed the bony gap changes and FEA displacement caused by this problem in osteoarthritis patients. METHODS: The study enrolled 60 knees from 60 patients for whom primary TKA was planned due to medial knee osteoarthritis. All patients underwent computed tomography, and 3-dimensional (3D) bone models were reconstructed on 3D-planning software...
February 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28219360/interobserver-and-intraobserver-agreement-of-ligamentous-injuries-on-conventional-mri-after-simple-elbow-dislocation
#11
Marc Schnetzke, Svenja Schüler, Johannes Hoffend, Rainer Simon, Holger Keil, Felix Porschke, Stefan Studier-Fischer, Paul-Alfred Grützner, Thorsten Guehring
BACKGROUND: The primary objective of this study was to assess the interobserver and intraobserver agreement on ligamentous injuries on conventional magnetic resonance imaging (MRI) in acute simple elbow dislocation. The secondary objectives were to determine the interobserver agreement on the assessment of joint congruity, joint effusion, loose bodies and chondral lesions on conventional MRI. METHODS: Conventional MRIs (1.5 Tesla, elbow specific surface coil) of 30 patients (40...
February 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28214478/accuracy-of-64-section-mdct-in-the-diagnosis-of-cruciate-ligament-tears
#12
E J Heffernan, D E Moran, J F Gerstenmaier, C J McCarthy, C Hegarty, C J McMahon
AIM: To evaluate the accuracy of non-arthrographic 64-section multidetector computed tomography (CT) in the assessment of cruciate ligament tears. A secondary goal was to determine its accuracy in the diagnosis of additional soft-tissue injuries around the knee. MATERIALS AND METHODS: Forty consecutive outpatients underwent same-day magnetic resonance imaging (MRI) and 64-slice multidetector CT (MDCT) of the knee in this prospective study. MDCT images were independently evaluated for integrity of the anterior (ACL) and posterior cruciate ligaments (PCL), medial and lateral menisci, and medial and lateral collateral ligaments...
February 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28210655/cost-of-outpatient-arthroscopic-anterior-cruciate-ligament-reconstruction-among-commercially-insured-patients-in-the-united-states-2005-2013
#13
Mackenzie M Herzog, Stephen W Marshall, Jennifer L Lund, Virginia Pate, Jeffrey T Spang
BACKGROUND: Despite the significance of anterior cruciate ligament (ACL) injuries, these conditions have been under-researched from a population-level perspective. It is important to determine the economic effect of these injuries in order to document the public health burden in the United States. PURPOSE: To describe the cost of outpatient arthroscopic ACL reconstruction and health care utilization among commercially insured beneficiaries in the United States. STUDY DESIGN: Economic and decision analysis; Level of evidence, 3...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28205469/valgus-instability-of-the-elbow-due-to-medial-epicondyle-nonunion-treatment-by-fragment-excision-and-medial-collateral-ligament-reconstruction
#14
Yasunori Kaneshiro, Noriaki Hidaka, Koichi Yano, Makoto Fukuda, Hideki Sakanaka
BACKGROUND: The medial epicondyle nonunion becomes symptomatic valgus instability with medial elbow pain and joint instability due to dysfunction of the medial collateral ligament (MCL), thus requiring surgical treatment. The purpose of the present study is to report the clinical result of the fragment excision and ligament reconstruction by free tendon graft in the treatment of symptomatic medial epicondyle nonunion. METHODS: A retrospective study of five consecutive patients was performed...
March 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28197694/relaxation-of-the-mcl-after-an-open-wedge-high-tibial-osteotomy-results-in-decreasing-contact-pressures-of-the-knee-over-time
#15
N van Egmond, G Hannink, D Janssen, A C Vrancken, N Verdonschot, A van Kampen
PURPOSE: The objective of this study was to investigate the effect of a medial open-wedge osteotomy (OWO) and the release of the superficial medial collateral ligament (MCL) on the tibiofemoral cartilage pressure, the MCL tension and the valgus laxity of the knee. METHODS: Seven fresh-frozen, human cadaveric knees were used. Medial and lateral mean contact pressure (CP), peak contact pressure (peakCP), and contact area (CA) were measured using a pressure-sensitive film (I-Scan; Tekscan, Boston, MA)...
March 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28188394/algorithmic-pie-crusting-of-the-medial-collateral-ligament-guided-by-sensing-technology-affects-the-use-of-constrained-inserts-during-total-knee-arthroplasty
#16
Spencer Amundsen, Yuo-Yu Lee, Alejandro González Della Valle
BACKGROUND: Intra-operative sensing technology is an alternative to standard techniques in total knee arthroplasty (TKA) for determining balance by providing quantitative analysis of loads and point of contact throughout a range of motion. We used intra-operative sensing (VERASENSE-OrthoSensor, Inc.) to examine pie-crusting release of the medial collateral ligament in knees with varus deformity (study group) in comparison to a control group where balance was obtained using a classic release technique and assessed using laminar spreaders, spacer blocks, manual stress, and a ruler...
February 10, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28165760/comparison-of-acl-strain-in-the-mcl-deficient-and-mcl-reconstructed-knee-during-simulated-landing-in-a-cadaveric-model
#17
Eric J Mancini, Robert Kohen, Amanda O Esquivel, Allison M Cracchiolo, Stephen Edward Lemos
BACKGROUND: Noncontact anterior cruciate ligament (ACL) injury after valgus landing has been reported and studied biomechanically. However, the role of the medial collateral ligament (MCL) in dissipating these forces has not been fully elucidated. Purpose/Hypothesis: The purpose of this study was to investigate the role that the MCL plays in ACL strain during simulated landing. The hypothesis was that ACL strain would increase significantly in MCL-incompetent knees compared with the native knee and that reconstructing the MCL would return the values to those of the intact knee...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28154811/closed-reduction-of-irreducible-posterolateral-knee-dislocation-a-case-report
#18
Satoshi Tateda, Atsushi Takahashi, Toshimi Aizawa, Jutaro Umehara
INTRODUCTION: Posterolateral rotary knee dislocation is a rare orthopedic injury that is considered to be irreducible by closed reduction because of soft tissue incarceration. Here, we present a case of posterolateral rotary knee dislocation, which was reduced by closed manipulation. CASE REPORT: The patientwas a 33-year-old man who sustained a twisting injury to his right knee that was diagnosed as posterolateral rotary knee dislocation by plain radiographs and the characteristic physical finding known as a dimple sign...
April 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28127647/-reconstruction-of-the-medial-patellofemoral-ligament-after-lower-leg-amputation
#19
M Schulz, R Schwesig, H Siekmann, E Esmer, L Irlenbusch
The reconstruction of the medial patellofemoral ligament has been an increasingly popular approach for patellar instability over the last ten years. It is a conglomeration of symptoms with varying degree of severity. For pinpointed surgery planning, magnetic resonance imaging is now the obligate diagnosic tool. Therefore, in the preoperative stage, collateral pathology can be observed.
January 26, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28110363/bone-morphotypes-of-the-varus-and-valgus-knee
#20
E Thienpont, P E Schwab, O Cornu, J Bellemans, J Victor
BACKGROUND: Coronal deformity correction with total knee arthroplasty (TKA) is an important feature in the treatment of osteoarthritis (OA). The hypothesis of this study was that bone morphology would be different in varus and valgus deformity, both before osteoarthritis development as well as during and after the disease process of OA. MATERIALS AND METHODS: Retrospective study with measurements on preoperative and postoperative full leg standing radiographs of 96 patients who underwent TKA...
January 21, 2017: Archives of Orthopaedic and Trauma Surgery
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