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https://www.readbyqxmd.com/read/28910987/management-of-combined-injuries-of-the-posterior-cruciate-ligament-and-posterolateral-corner-of-the-knee-a-systematic-review
#1
Stefano Petrillo, Piero Volpi, Rocco Papalia, Nicola Maffulli, Vincenzo Denaro
Background: Approximately 60% of posterior cruciate ligament (PCL) injury are associated with a posterolateral corner (PLC) tear. Sources of data: We performed a systematic review of the literature according to the PRISMA guidelines. The following key words were searched on Medline, Cochrane, EMBASE, Google Scholar, and Ovid: 'posterior cruciate ligament' or 'PCL' with 'posterolateral corner' or 'PLC' and 'chronic'; 'injury'; 'management'; 'reconstruction'; 'outcomes'; 'complications'...
September 1, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28865532/magnetic-resonance-imaging-of-musculoskeletal-emergencies
#2
Parthiv Mehta, Micheal Morrow, Joshua Russell, Nikhil Madhuripan, Michael Habeeb
Musculoskeletal trauma and infections are commonly encountered in the emergency department. Magnetic resonance imaging (MRI) is rarely employed in true emergencies and most musculoskeletal studies can be deferred to the outpatient setting. This article seeks to address the urgent conditions in which MRI can play a role in diagnosis, management, and treatment. This article outlines MRI's role in the evaluation of posterolateral corner injuries and other soft-tissue pathologies such as rhabdomyolysis, diabetic myonecrosis, septic arthritis, cellulitis, necrotizing fasciitis, and compartment syndrome...
August 2017: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/28856482/hyperextension-injuries-of-the-knee-do-patterns-of-bone-bruising-predict-soft-tissue-injury
#3
A M Ali, J K Pillai, V Gulati, C E R Gibbons, B J Roberton
OBJECTIVE: To establish whether patterns of soft tissue injury following knee hyperextension are associated with post-traumatic 'bone bruise' distribution. MATERIALS AND METHODS: Patients with a knee MRI within one year of hyperextension injury were identified at our institution over a 7 year period. MRIs, plain radiographs and clinical details of these patients were reviewed. RESULTS: Twenty-five patients were identified (median time from injury to MRI = 24 days)...
August 31, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28815587/beveled-posteromedial-corner-of-the-radial-head-a-three-dimensional-micro-computed-tomography-modeling-study
#4
Arnold Adikrishna, Young-Ho Shin, Rizki F Zulkarnain, Hanpyo Hong, Yucheng Sun, In-Ho Jeon
The posteromedial quadrant of the radial head is known to be different from the other quadrants. However, the explanation of this unique anatomical feature remains elusive. Hence, this study was designed to address this unique anatomical variance using three-dimensional μCT (micro-computed tomography) analysis. Nine fresh cadaveric radial heads were scanned using μCT. Three-dimensional subchondral bone and cartilage models were rendered. Both models were separated into the four quadrants at both the periphery (rim) and the articulating dish (fovea): anteromedial (AM), posteromedial (PM), posterolateral (PL), and anterolateral (AL)...
August 15, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28810991/posterior-cruciate-ligament-injuries-associated-with-military-survival-swim-training
#5
Michael S Crowell, John S Mason, Matthew A Posner, Chad A Haley
OBJECTIVES: Posterior cruciate ligament (PCL) injuries are relatively common injuries associated with athletic activities and high-energy trauma. Posterolateral corner (PLC) injuries frequently accompany injury to the PCL. Diagnosis can be challenging and requires a comprehensive history and physical examination. Patients frequently report vague, nonspecific symptoms and the mechanism of injury is often useful in localizing injured structures. Two of the more common mechanisms for PCL injury include a direct blow to the proximal anterior tibia with the knee flexed, as well as a significant knee hyperextension injury...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28685303/satisfactory-knee-function-after-single-stage-posterolateral-corner-reconstruction-in-the-multi-ligament-injured-dislocated-knee-using-the-anatomic-single-graft-technique
#6
Thomas L Sanders, Nick R Johnson, Ayoosh Pareek, Aaron J Krych, Robert G Marx, Michael J Stuart, Bruce A Levy
PURPOSE: Increasing importance has been placed on the posterolateral corner (PLC) in maintaining varus and rotational stability of the knee. The goal of this study was to evaluate knee function and clinical stability following a single-graft PLC reconstruction technique and identify factors associated with poor knee function. METHODS: This study identified patients with a multi-ligament knee injury between 2006 and 2013. Patients who received a single-graft fibular collateral ligament and PLC reconstruction with a single-stage surgery during the study period and had a minimum follow-up of 2 years after surgery were included...
July 6, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28669472/editorial-commentary-a-positive-half-dial-test-is-seen-in-anterior-cruciate-ligament-injury-so-get-out-your-goniometer
#7
EDITORIAL
Michael J Rossi
Isolated anterior cruciate ligament (ACL)-deficient knees have roughly 7° of increased external rotation at both 30° and 90° of flexion compared with both the contralateral knee and the ACL reconstructed knee. This positive "Half Dial test" may be a new approach to confirming ACL injury but requires confirmation that the posterolateral corner itself is not injured. In the ACL-deficient knee, it is suggested that a greater cutoff (>15°) for the true Dial test be used to confirm posterolateral corner injuries...
July 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28615108/kinematics-of-different-components-of-the-posterolateral-corner-of-the-knee-in-the-lateral-collateral-ligament-intact-state-a-human-cadaveric%C3%A2-study
#8
Christoph Domnick, Karl-Heinz Frosch, Michael J Raschke, Nils Vogel, Martin Schulze, Mathias von Glahn, Tobias C Drenck, Mirco Herbort
PURPOSE: To determine the static stabilizing effects of different anatomical structures of the posterolateral corner (PLC) of the knee in the lateral collateral ligament (LCL)-intact state. METHODS: Thirteen fresh-frozen human cadaveric knees were dissected and tested using an industrial robot with an optical tracking system. Kinematics were determined for 134 N anterior/posterior loads, 10 N m valgus/varus loads, and 5 N m internal/external rotatory loads in 0°, 20°, 30°, 60°, and 90° of knee flexion...
June 11, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28607939/the-role-of-the-peripheral-passive-rotation-stabilizers-of-the-knee-with-intact-collateral-and-cruciate-ligaments-a-biomechanical-study
#9
Alexander R Vap, Jason M Schon, Gilbert Moatshe, Raphael S Cruz, Alex W Brady, Grant J Dornan, Travis Lee Turnbull, Robert F LaPrade
BACKGROUND: A subset of patients have clinical internal and/or external knee rotational instability despite no apparent injury to the cruciate or collateral ligaments. PURPOSE/HYPOTHESIS: The purpose of this study was to assess the effect of sequentially cutting the posterolateral, anterolateral, posteromedial, and anteromedial structures of the knee on rotational stability in the setting of intact cruciate and collateral ligaments. It was hypothesized that cutting of the iliotibial band (ITB), anterolateral ligament and lateral capsule (ALL/LC), posterior oblique ligament (POL), and posteromedial capsule (PMC) would significantly increase internal rotation, while sectioning of the anteromedial capsule (AMC) and the popliteus tendon and popliteofibular ligament (PLT/PFL) would lead to a significant increase in external knee rotation...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28589876/short-term-results-after-arthroscopic-resection-of-synovial-plicae-in-the-radiohumeral-joint-a-case-series-of-64-procedures
#10
Jens Brahe Pedersen, Pia Kjær Kristensen, Peter Mønsted, Theis Muncholm Thillemann
INTRODUCTION: Painful Synovial Plicae (SP) in the posterolateral corner of the radiohumeral joint may be confused with lateral epicondylitis. The SP may impinge between the radial head and the humeral capitellum causing pain and snapping. The aim of this study was to evaluate the short-term results after arthroscopic plica resection of the elbow. METHODS: In this case series, we included a consecutive series of 64 arthroscopies (60 patients) with arthroscopic plica resection of the elbow...
2017: SICOT-J
https://www.readbyqxmd.com/read/28589159/demographics-and-injuries-associated-with-knee-dislocation-a-prospective-review-of-303-patients
#11
Gilbert Moatshe, Grant J Dornan, Sverre Løken, Tom C Ludvigsen, Robert F LaPrade, Lars Engebretsen
BACKGROUND: Information on the incidence, injury mechanisms, ligament injury patterns, and associated injuries of knee dislocations is lacking in the literature. There is a need to characterize ligament injury patterns and associated injuries in knee dislocations to avoid missing common associated diagnoses and to plan surgical treatment. PURPOSE: To evaluate patient demographics, ligament injury patterns and associated injury patterns, and associated injuries in patients with knee dislocation...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28583062/multiple-ligament-reconstruction-for-absent-cruciate-and-a-congenital-short-femur-case-report-and-review-of-the-literature
#12
Daniel Kaplan, Taylor Jazrawi, Jason Capo, Eric Strauss
Congenital short femur syndrome is a rare condition affecting about 0.017 of every 1,000 births. Patients frequently have ligamentous abnormalities, most frequently aplastic or hypoplastic cruciate ligaments. Advances in limb lengthening procedures have increased movement expectations for these patients, thus necessitating surgical treatment for their ligamentous abnormalities. An individual case is presented, including history, physical exam, and imaging demonstrating both the short femur and absent cruciate ligaments...
April 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28580250/combined-all-inside-anterior-cruciate-ligament-reconstruction-and-minimally-invasive-posterolateral-corner-reconstruction-using-ipsilateral-semitendinosus-and-gracilis-autograft
#13
Zakk M Borton, Sam K Yasen, Edward M Britton, Samuel R Heaton, Harry C Palmer, Adrian J Wilson
The anterior cruciate ligament (ACL) is the most commonly injured knee ligament, particularly among adolescents and young adults. Unrecognized posterolateral laxity is understood as a major cause of ACL reconstruction failure, and concomitant injury to the posterolateral corner (PLC) is prevalent and underdetected. We advocate screening all ACL-deficient knees for PLC injury and present a technique combining minimally invasive PLC reconstruction with anatomic all-inside ACL reconstruction. The combined procedure uses only the ipsilateral hamstring tendons representing a major surgical advantage over traditional management approaches...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28580244/arthroscopic-technique-for-isolated-posterolateral-rotational-instability-of-the-knee
#14
Yasuo Ohnishi, Cecilia Pascual-Garrido, Hiroto Kumagae, Akinori Sakai, Soshi Uchida
Isolated posterolateral corner injury is an uncommon injury that could be a source of unexplained knee pain and dysfunction. Most of these patients present instability caused by concomitant ligament injuries. Numerous studies have shown open approach posterolateral repair or reconstruction surgeries to restore posterolateral rotational stability. Still, there is a certain population of patients who present posterolateral rotation instability without significant injury to the fibular collateral ligament, popliteal fibular ligament, and popliteus tendon...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28454998/finite-element-analysis-of-the-biomechanical-effects-of-3-posterolateral-corner-reconstruction-techniques-for-the-knee-joint
#15
Kyoung-Tak Kang, Yong-Gon Koh, Juhyun Son, Sung-Jae Kim, Sungryul Choi, Moonki Jung, Sung-Hwan Kim
PURPOSE: To compare the forces exerted on the cruciate ligaments and the contact stresses on the tibiofemoral (TF) and patellofemoral (PF) joints with respect to 3 different tibial- and fibular-based posterolateral corner (PLC) reconstructions under dynamic loading conditions. METHODS: A subject-specific finite element knee model was developed by using 3-dimensional anatomic data from motion captures in gait and squat activities, including in vivo knee joint kinematics and muscle forces for the single subject...
August 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28451605/the-impact-of-osseous-malalignment-and-realignment-procedures-in-knee-ligament-surgery-a-systematic-review-of-the-clinical-evidence
#16
REVIEW
Thomas Tischer, Jochen Paul, Dietrich Pape, Michael T Hirschmann, Andreas B Imhoff, Stefan Hinterwimmer, Matthias J Feucht
BACKGROUND: Failure rates of knee ligament surgery may be high, and the impact of osseous alignment on surgical outcome remains controversial. Basic science studies have demonstrated that osseous malalignment can negatively affect ligament strain and that realignment procedures may improve knee joint stability. HYPOTHESIS/PURPOSE: The purpose of this review was to summarize the clinical evidence concerning the impact of osseous malalignment and realignment procedures in knee ligament surgery...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28447141/the-iliotibial-band-and-anterolateral-capsule-have-a-combined-attachment-to-the-segond-fracture
#17
Marcio Albers, Humza Shaikh, Elmar Herbst, Kentaro Onishi, Kanto Nagai, Volker Musahl, Freddie H Fu
The purpose of this report was to describe the injury mechanism, surgical findings, and outcomes in a 21-year-old professional female football player who presented with a complete anterior cruciate ligament (ACL) rupture and Segond fracture. Interview and video analysis were performed to elicit the injury mechanism. Clinical examination and imaging revealed a complete ACL tear, Segond fracture, lateral meniscus tear, MCL sprain, and posterolateral corner sprain. Examination under anaesthesia revealed Grade 2 pivot shift and varus/valgus instability...
April 26, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28424850/incidence-and-mri-characterization-of-the-spectrum-of-posterolateral-corner-injuries-occurring-in-association-with-acl-rupture
#18
Eduardo Frois Temponi, Lúcio Honório de Carvalho Júnior, Adnan Saithna, Mathieu Thaunat, Bertrand Sonnery-Cottet
OBJECTIVE: To determine the incidence and MRI characteristics of the spectrum of posterolateral corner (PLC) injuries occurring in association with anterior cruciate ligament (ACL) rupture. MATERIALS AND METHODS: We carried out a level IV, retrospective case series study. All patients clinically diagnosed with an ACL rupture between July 2015 and June 2016 who underwent MRI of the knee were included in the study. In addition to standard MRI knee reporting, emphasis was placed on identifying injury to the PLC and a description of involvement of these structures by two musculoskeletal radiologists...
August 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28409145/extra-articular-and-transcutaneous-migration-of-the-poly-l-d-lactide-interference-screw-after-popliteal-tendon-reconstruction
#19
Camilo Partezani Helito, Noel O Foni, Marcelo Batista Bonadio, José Ricardo Pécora, Marco Kawamura Demange, Fabio Janson Angelini
Knee ligament reconstructions are commonly performed orthopedic procedures. Graft fixation is generally performed with metallic or absorbable interference screws. In a recent study, only ten reports of screw migration were retrieved; of these, only one was not related to the anterior cruciate ligament, and the majority was related to the use of poly-l-lactic acid (PLLA) screws. Only one case retrieved in the literature reported screw migration in reconstructions of the posterolateral corner, and that was to the intra-articular region...
March 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28361277/the-effect-of-a-dynamic-pcl-brace-on-patellofemoral-compartment-pressures-in-pcl-and-pcl-plc-deficient-knees
#20
Tyler Welch, Thomas Keller, Ruben Maldonado, Melodie Metzger, Karen Mohr, Ronald Kvitne
BACKGROUND: The natural history of posterior cruciate ligament (PCL) deficiency includes the development of arthrosis in the patellofemoral joint (PFJ). The purpose of this biomechanical study was to evaluate the hypothesis that dynamic bracing reduces PFJ pressures in PCL- and combined PCL/posterolateral corner (PLC)-deficient knees. STUDY DESIGN: Controlled Laboratory Study. METHODS: Eight fresh frozen cadaveric knees with intact cruciate and collateral ligaments were included...
December 2017: Journal of Experimental Orthopaedics
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