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https://www.readbyqxmd.com/read/29770342/fibular-collateral-ligament-varus-stress-radiographic-analysis-using-3-different-clinical-techniques
#1
Patrick W Kane, Mark E Cinque, Gilbert Moatshe, Jorge Chahla, Nicholas N DePhillipo, Matthew T Provencher, Robert F LaPrade
Background: Fibular collateral ligament (FCL) tears are challenging to diagnose. Left untreated, FCL tears lead to residual ligament instability and increased joint loading on the medial compartment of the knee. Additionally, when a concomitant anterior cruciate ligament (ACL) reconstruction is performed, increased forces on reconstruction grafts occur, which may lead to premature graft failure. Stress radiographs constitute a reliable and validated technique for the objective assessment of a complete grade III FCL tear...
May 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29754187/nationwide-multicenter-follow-up-cohort-study-of-hip-arthroplasties-performed-for-osteonecrosis-of-the-femoral-head
#2
Seneki Kobayashi, Toshikazu Kubo, Yukihide Iwamoto, Wakaba Fukushima, Nobuhiko Sugano
PURPOSE: To identify modifiable factors related to post-operative dislocation and reoperation in patients with osteonecrosis of the femoral head (ONFH) in a large cohort. METHODS: We studied 4995 hip arthroplasties: total hip arthroplasty (THA) was performed in 79% of patients; bipolar hemiarthroplasty (BP), 17%; total resurfacing arthroplasty (tRS), 3%; and hemi-resurfacing arthroplasty (hRS), 1%. A new type of BP (accounting for 49% of BPs) comprised a femoral component with a polished or smooth, small-diameter (approximately 10 mm) neck with a round or oval axial cut surface and no sharp corners...
May 12, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29630033/a-randomized-comparison-between-interscalene-and-small-volume-supraclavicular-blocks-for-arthroscopic-shoulder-surgery
#3
Julián Aliste, Daniela Bravo, Diego Fernández, Sebastián Layera, Roderick J Finlayson, De Q Tran
BACKGROUND AND OBJECTIVES: This randomized trial compared ultrasound (US)-guided interscalene block (ISB) and small-volume supraclavicular block (SCB) for arthroscopic shoulder surgery. We hypothesized that SCB would provide equivalent analgesia to ISB 30 minutes after surgery without the risk of hemidiaphragmatic paralysis (HDP). METHODS: All patients received an US-guided intermediate cervical plexus block. In the ISB group, US-guided ISB was performed with 20 mL of levobupivacaine 0...
April 6, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29593980/anatomic-posterolateral-corner-reconstruction-with-autografts
#4
Carlos Eduardo Franciozi, Leonardo José Bernardes Albertoni, Guilherme Conforto Gracitelli, Fernando Cury Rezende, Luiz Felipe Ambra, Fábio Pacheco Ferreira, Marcelo Seiji Kubota, Sheila Jean McNeil Ingham, Marcus Vinícius Malheiros Luzo, Moisés Cohen, Rene Jorge Abdalla
Anatomic posterolateral corner reconstruction reproduces 3 main structures: the lateral collateral ligament, the popliteofibular ligament, and the popliteus tendon. The LaPrade technique reproduces all 3 main stabilizers. However, it requires a long graft, limiting its indication to clinical settings in which allograft tissue is available. We propose a surgical procedure that is a modification of the LaPrade technique using the same tunnel placement, hamstring autografts, and biceps augmentation when necessary...
February 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29552481/surgical-management-of-the-multiple-ligament-knee-injury
#5
Kadir Buyukdogan, Michael S Laidlaw, Mark D Miller
The management of multiligament knee injury is a complex process starting with the adequate identification of the injury. A detailed physical and radiographic examination with a thorough understanding of knee anatomy is crucial to assess all damaged structures: anterior cruciate ligament, posterior cruciate ligament, posteromedial corner including the medial collateral ligament, and posterolateral corner including the lateral collateral ligament. Several surgical techniques have been developed throughout the years to adequately address these ligament insufficiencies...
February 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29529702/complex-fibular-head-avulsion-fracture-surgical-management-of-a-case
#6
Vittorio Mattugini, Carmine Citarelli, Fabio Cosseddu, Marco Ghilard, Guido Luppichini, Francesco Casella, Giulio Agostini, Federico Sacchetti, Rodolfo Capanna
Fibular head avulsion fractures are rare injuries determined by traction of the fibular attachment of the lateral collateral ligament (LCL). Surgical treatment is often recommended with different techniques such as tension band fixation or lag screws stabilization. In this article, we describe a fixation technique of fibular head fractures obtained through the use of anchors. A 45-year-old athletic patient came to our attention in our traumatologic service after a motorcycle accident. He reported a complex injury of the posterolateral corner with an avulsion fracture of the left fibular head...
March 12, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29502690/editorial-commentary-posterolateral-corner-injuries-in-elite-athletes-remain-a-challenging-diagnostic-problem
#7
EDITORIAL
Christopher D Harner, Walter R Lowe
Posterolateral corner injuries are rare, and the examination to quantitate these injuries is very challenging. Careful examination comparing the involved and uninvolved knees, considering stress radiographs, and combining this with magnetic resonance imaging findings is currently our most accurate way to grade these injuries.
March 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29475170/a-case-report-of-anterior-cruciate-ligament-and-posterolateral-corner-reconstruction-using-tendon-graft-preserved-in-situ
#8
Bosco Mpatswenumugabo, Emmanuel Bukara, Muhammed Semakula, Albert Nzayisenga, Rene Mukezamfura, Lambert Dusingizimana, Basile Habumugisha, Salvador Kamarampaka, Leon Mutesa, Alex Butera
INTRODUCTION: Combined anterior cruciate ligament (ACL) and posterolateral corner (PLC) reconstruction are a rare clinical entity in orthopedic literature, whose management requires different types of tendon grafts. Missed PLC injury leads to the failure of ACL repair due to the joint instability. PRESENTATION OF CASE: We are presenting a case of posttraumatic right ACL, PLC and lateral meniscus injury. The patient was taken to theatre for arthroscopic meniscectomy, ACL and PLC reconstruction...
2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29444543/posterolateral-corner-reconstruction-using-the-anatomical-two-tailed-graft-technique-clinical-outcomes-in-the-multiligament-injured-knee
#9
Jarret M Woodmass, Thomas L Sanders, Nick R Johnson, Isabella T Wu, Aaron J Krych, Michael J Stuart, Bruce A Levy
Injury to the posterolateral corner (PLC) of the knee can lead to both varus and rotational instability. Multiple PLC reconstruction techniques have been described, including one-tailed graft (fibula-based constructs) or two-tailed graft (combined fibula- and tibia-based constructs). The purpose of our study was to evaluate the clinical outcomes of anatomical two-tailed graft reconstruction of the PLC in the setting of multiligament knee injuries (MKLIs) with grade III varus instability. Patients were identified through a prospective MLKI database between 2004 and 2013...
February 14, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29436742/biomechanical-influence-of-deficient-posterolateral-corner-structures-on-knee-joint-kinematics-a-computational-study
#10
Kyoung-Tak Kang, Yong-Gon Koh, Juhyun Son, Moonki Jung, Sangyun Oh, Sung-Jae Kim, Sung-Hwan Kim
The posterolateral corner (PLC) structures including the popliteofibular ligament (PFL), popliteus tendon (PT) and lateral collateral ligament (LCL) are important soft tissues for posterior translational, external rotational, and varus angulation knee joint instabilities. The purpose of this study was to determine the effects of deficient PLC structures on the kinematics of the knee joint under gait and squat loading conditions. We developed subject-specific computational models with full 12-degree-of-freedom tibiofemoral and patellofemoral joints for four male subjects and one female subject...
February 13, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29369174/a-case-report-and-literature-review-on-fabella-syndrome-after-high-tibial-osteotomy
#11
Taehun Kim, Haksun Chung, Hyungmin Lee, Young Choi, Jung-Hwan Son
RATIONALE: The fabella is a normal structure, but is occasionally reported to cause posterior knee pain. The aim of this study was to present fabella syndrome after high tibial osteotomy. PATIENT CONCERNS: A 55-year-old female patient was admitted to the hospital due to about 1 year and 8 months of left knee pain. Sclerosis was observed in the anterior margin of the fabella in the preoperative magnetic resonance (MR) T2 image, and reactive bone marrow was found and was considered to be due to degeneration of the distal femur...
January 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29356799/rim-plate-augmentation-of-the-posterolateral-bare-area-of-the-tibial-plateau-using-a-3-5-mm-pre-contoured-locking-compression-plate-a-cadaveric-study
#12
Youngwoo Kim, Yong-Cheol Yoon, Jae-Woo Cho, Won-Tae Cho, Neung-Han Jeon, Chang-Wug Oh, Jong-Keon Oh
OBJECTIVE: To evaluate the effectiveness of an additional rim plate (3.5-mm pre-contoured locking compression plate) for stabilizing the posterolateral fragment in lateral tibial plateau fractures. METHODS: Standard lateral locking plates (either a PTP or PTLP) followed by the application of a secondary rim plate (VALCP) posterior laterally were applied to 40 matched pair knees from 20 fresh-frozen cadavers. RESULTS: The mean ratio of supported articular surface in the PTP group was 0...
January 5, 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29349016/the-external-rotation-radiographic-technique-for-posterolateral-injury
#13
João Luiz Ellera Gomes, Matheus Rocha de Aguiar, Luiza Barbosa Horta Barbosa, Nicholas I Kennedy, Márcio B Ferrari
Posterolateral corner injuries are a severe and often unrecognized pathology. Injuries to these structures are difficult to identify using magnetic resonance images. Physical examination tests including the dial test, frog-leg test, and varus stress test can be difficult to perform. In addition it is difficult to correctly evaluate the results in a multiligament injury setting. The correct diagnosis of this pathology is essential to determine the proper treatment and improve outcomes. Furthermore, failure to recognize this pathology is associated with a high risk of failure following isolated anterior cruciate ligament reconstructions...
December 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29320786/imaging-of-ligamentous-structures-within-the-knee-includes-much-more-than-the-acl
#14
Kara Gaetke-Udager, Corrie M Yablon
Ligamentous structures of the knee are numerous and complex, including the anterior and posterior cruciate ligaments, medial and lateral collateral ligaments, ligaments of the posteromedial and posterolateral corners, and the anterolateral ligament. Clinical assessment after a knee injury is paramount and can direct both the clinician's choice of imaging study and the radiologist's interpretation. Imaging is crucial in that it provides additional information for diagnosis, management, and surgical planning...
February 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29227374/collateral-ligament-knee-injuries-in-pediatric-and-adolescent-athletes
#15
Dennis E Kramer, Patricia E Miller, Iman K Berrahou, Yi-Meng Yen, Benton E Heyworth
BACKGROUND: The majority of research on medial (MCL) and lateral (LCL) collateral ligament injuries has focused on adults and combined collateral/cruciate injuries. The purpose of this study was to determine characteristics associated with isolated collateral ligament injuries in adolescents, and assess timing for return to sports. METHODS: Electronic medical records were queried to identify patients aged below 17 years who sustained a magnetic resonance imaging-confirmed isolated MCL or LCL injury over an 8-year period...
December 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29177951/posterolateral-overhang-affects-patient-quality-of-life-after-total-knee-arthroplasty
#16
Mehmet Emin Simsek, Mustafa Akkaya, Safa Gursoy, Cetin Isik, Akos Zahar, Samih Tarabichi, Murat Bozkurt
PURPOSE: To investigate the appropriate mediolateral placement of symmetrical tibial components and the amount of overhang expected from the posterolateral of tibial components implanted to give ideal coverage and the subsequent incidence of residual knee pain and reduction in functional capacity. METHOD: A retrospective evaluation was made of 146 consecutive total knee arthroplasties. The posterolateral overhang, rotational alignment and coverage of the tibial component were measured on a post-operative CT scan and the effect of posterolateral overhang on clinical outcomes was analysed 3 years after surgery...
March 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29173550/the-role-of-an-extra-articular-tenodesis-in-revision-of-anterior-cruciate-ligament-reconstruction
#17
REVIEW
Thomas K Miller
Patients who present for anterior cruciate ligament (ACL) revision with a high-grade pivot shift at the time of an index ACL revision procedure and subsequent reconstruction failure or a high-grade pivot shift at revision surgery, patients with generalized joint laxity, and those requiring softs tissue grafts should be considered candidates for lateral tenodesis to supplement intraarticular graft revision. Although there is no consensus regarding the optimal lateral tenodesis technique, due to the tibial positioning associated with tensioning and fixation of extra-articular procedures, a lateral tenodesis should not be used in patients with posterolateral corner injuries or lateral compartment articular disease...
January 2018: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/29172386/current-concepts-of-posterolateral-corner-injuries-of-the-knee
#18
REVIEW
Oog-Jin Shon, Jae-Woo Park, Beum-Jung Kim
The number of posterolateral corner (PLC) injury patients has risen owing to the increased motor vehicle accidents and sports activities. Careful examination is required because this injury is easy to overlook and may lead to chronic instability. The purpose of this article is to review the anatomy, biomechanics, diagnosis, classification and, treatment of PLC injuries and summarize the recent literatures regarding the treatment outcomes.
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172384/posterior-cruciate-ligament-reconstruction-and-posterolateral-corner-injury
#19
EDITORIAL
Young Mo Kim
No abstract text is available yet for this article.
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29146160/posterolateral-corner-injuries-of-the-knee-at-the-national-football-league-combine-an-imaging-and-outcomes-analysis
#20
Jorge Chahla, Nicholas I Kennedy, Mark E Cinque, George Sanchez, Catherine Logan, Bryan G Vopat, Brendin Beaulieu-Jones, Mark Price, Jim Whalen, Robert F LaPrade, Matthew T Provencher
PURPOSE: (1) To determine the epidemiology, examination findings, imaging findings, and associated injuries of posterolateral corner (PLC) injuries in players participating in the National Football League (NFL) Combine and (2) to evaluate the impact of PLC injuries on performance compared with matched controls. METHODS: All PLC injuries identified at the NFL Combine between 2009 and 2015 were reviewed. The inclusion criteria were any player who had clinical findings or a previous surgical procedure consistent with a PLC injury and who participated in medical and performance testing at the NFL Combine...
March 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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