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https://www.readbyqxmd.com/read/28321423/the-anterolateral-ligament-an-anatomic-study-on-sex-based-differences
#1
Matt Daggett, Camilo Helito, Matthew Cullen, Andrew Ockuly, Kyle Busch, Joseph Granite, Barth Wright, Bertrand Sonnery-Cottet
BACKGROUND: The anterolateral ligament (ALL) has been shown to have an important role in rotatory stability of the knee. While there is abundant research on sex-based differences related to anterior cruciate ligament (ACL) rupture, there is a paucity of literature related to such differences in the ALL. PURPOSE: To define any sex-based differences in the ALL with regard to length, width, and thickness. STUDY DESIGN: Descriptive laboratory study...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28314694/stress-ultrasound-in-baseball-players-with-ulnar-collateral-ligament-injuries-additional-value-for-predicting-rehabilitation-outcome
#2
Na Ra Kim, Sung Gyu Moon, Jin-Young Park, Jin Woo Choi, Kyung-Soo Oh
BACKGROUND: The purpose of this study was to evaluate the additional value of stress ultrasound (US) for predicting rehabilitation outcome in baseball players with ulnar collateral ligament (UCL) injury. METHODS: Stress US and magnetic resonance imaging (MRI) in 41 baseball players with UCL injury who received rehabilitation treatment for more than 6 weeks were retrospectively compared between the rehabilitation group (n = 23) and surgery group (n = 18)...
March 14, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28299388/the-combination-of-tibial-anterior-translation-and-axial-rotation-into-a-single-biomechanical-factor-improves-the-prediction-of-patient-satisfaction-over-each-factor-alone-in-patients-with-acl-reconstructed-knees
#3
Thomas P Branch, Shaun K Stinton, William C Hutton, Philippe Neyret
PURPOSE: The purpose of this study was to identify biomechanical factors, in both reconstructed and healthy knees, that correlate with patient satisfaction after ACL reconstruction. METHODS: Seventeen patients who had undergone unilateral ACL reconstruction were reviewed 9 years post-op. Patients completed subjective questionnaires and underwent manual knee laxity testing (Lachman-Trillat, KT-1000, and pivot shift) and automated laxity testing. During automated testing, both legs were rotated into external rotation and then internal rotation until peak rotational torque reached 5...
March 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28280906/kinematics-of-acl-and-anterolateral-ligament-part%C3%A2-ii-anterolateral-and-anterior-cruciate-ligament-reconstruction
#4
T Bonanzinga, Cecilia Signorelli, A Grassi, N Lopomo, M Jain, M Mosca, F Iacono, M Marcacci, F Zaffagnini
PURPOSE: To quantify the influence of Single-Bundle with Lateral Plasty and Double-Bundle reconstruction on static and dynamic laxity in combined ACL- and ALL-deficient knees. METHODS: The study included 10 fresh-frozen human knees. The joints were analyzed in the following conditions: ACL + ALL resection, Single-Bundle with Lateral Plasty (SBLP) reconstruction, Double-Bundle (DB) reconstruction. Testing parameters were: anterior displacement at 30° and 90° of flexion (AP30, AP90) applying a manual maximum load; internal rotation at 30° and 90° of flexion (INT30, INT90) applying a 5 Nm torque and acceleration and internal rotation Pivot-Shift (PS) test...
March 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28271938/musculoskeletal-effects-of-pregnancy-on-the-lower-extremitya-literature-review
#5
Derek S Anselmo, Ebony Love, Dana N Tango, Lesly Robinson
Pregnant women are often burdened with musculoskeletal symptoms of the lower extremity due to the physical, hormonal, and anatomical changes that occur throughout pregnancy. These symptoms are associated with musculoskeletal dysfunctions, modified gait, joint laxity, muscle imbalance, and increased body mass. This article reviews the literature involving the lower-extremity changes experienced by women during pregnancy and their respective pathophysiologic causes.
January 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28271089/total-knee-arthroplasty-in-severe-unstable-knee-case-report-and-literature-review
#6
Mohammad Naghi Tahmasebi, Gholamreza Ghorbani Amjad, Mohammad Hassan Kaseb, Kaveh Bashti
Multiplanar or global laxity in arthritic knee is rare, most of this patients have neuromuscular disorder (post poliomyelitis, spinal dystrophy) or history of knee trauma. Ligament insufficiency and severe bone loss is significant in this patient. The estimated prevalence for the concurrence of charcot marie-tooth (CMT) with myasthenia gravis (MG) suggests an extremely rare event. We have presented a 54-year-old female patient with CMT and MG complaining of progressive pain, swelling, and crepitation of the knee joints who had been undergone total knee arthroplasty (TKA) with rotating hinge prosthesis...
January 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28269792/ryr1-related-myopathies-clinical-histopathologic-and-genetic-heterogeneity-among-17-patients-from-a-portuguese-tertiary-centre
#7
Raquel Samões, Jorge Oliveira, Ricardo Taipa, Teresa Coelho, Márcio Cardoso, Ana Gonçalves, Rosário Santos, Manuel Melo Pires, Manuela Santos
BACKGROUND: Pathogenic variants in ryanodine receptor type 1 (RYR1) gene are an important cause of congenital myopathy. The clinical, histopathologic and genetic spectrum is wide. OBJECTIVE: Review a group of the patients diagnosed with ryanodinopathy in a tertiary centre from North Portugal, as an attempt to define some phenotypical patterns that may help guiding future diagnosis. METHODS: Patients were identified from the database of the reference centre for Neuromuscular Disorders in North Portugal...
2017: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/28265692/the-impact-of-generalized-joint-laxity-on-clinical-outcomes-of-total-knee-arthroplasty
#8
Sae Kwang Kwon, Hyuck Min Kwon, Youngho Kong, Kwan Kyu Park
PURPOSE: The aim of this study was to investigate whether the severity of generalized joint laxity influences preoperative and postoperative clinical outcomes and if patients with severe generalized joint laxity would require a thicker polyethylene (PE) liner during total knee arthroplasty (TKA). METHODS: A total of 338 female patients undergoing TKA were divided into two groups according to generalized joint laxity. Preoperative and postoperative (at 3 years) patellofemoral scale, AKS, WOMAC, ROM, and satisfaction VAS were compared between the two groups...
March 6, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28220607/neurological-and-spinal-manifestations-of-the-ehlers-danlos-syndromes
#9
Fraser C Henderson, Claudiu Austin, Edward Benzel, Paolo Bolognese, Richard Ellenbogen, Clair A Francomano, Candace Ireton, Petra Klinge, Myles Koby, Donlin Long, Sunil Patel, Eric L Singman, Nicol C Voermans
The Ehlers-Danlos syndromes (EDS) are a heterogeneous group of heritable connective tissue disorders characterized by joint hypermobility, skin extensibility, and tissue fragility. This communication briefly reports upon the neurological manifestations that arise including the weakness of the ligaments of the craniocervical junction and spine, early disc degeneration, and the weakness of the epineurium and perineurium surrounding peripheral nerves. Entrapment, deformation, and biophysical deformative stresses exerted upon the nervous system may alter gene expression, neuronal function and phenotypic expression...
February 21, 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/28203112/bone-contusion-progression-from-traumatic-knee-injury-association-of-rate-of-contusion-resolution-with-injury-severity
#10
Douglas R Pedersen, Georges Y El-Khoury, Dan R Thedens, Mothana Saad-Eldine, Phinit Phisitkul, Annunziato Amendola
BACKGROUND: Bone contusions are frequently encountered in magnetic resonance imaging (MRI) evaluation of knee anterior cruciate ligament (ACL) injuries. Their role as indicators of injury severity remains unclear, primarily due to indeterminate levels of joint injury forces and to a lack of preinjury imaging. PURPOSE: The purpose of this study was to 1) quantify bone contusion pathogenesis following traumatic joint injuries using fixed imaging follow-ups, and 2) assess the feasibility of using longitudinal bone contusion volumes as an indicator of knee injury severity...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28174432/a-study-of-isokinetic-strength-and-laxity-with-and-without-anterior-cruciate-ligament-injury
#11
Kewwan Kim, Kyoungkyu Jeon, David R Mullineaux, Eunok Cho
[Purpose] The purpose of this study was to provide useful information for future treatments and to organize rehabilitation programs for anterior cruciate ligament injury by assessing isokinetic muscle strength and laxity of knee joints in athletes with anterior cruciate ligament injuries. [Subjects and Methods] Thirty-one high school athletes with anterior cruciate ligament injuries participated in this study. Isokinetic muscle strength at 60°/sec and anterior cruciate ligament laxity for non-involved and involved sides, classified on the basis of the severity of anterior cruciate ligament injury, were assessed...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28146401/no-effect-of-generalized-joint-hypermobility-on-injury-risk-in-elite-female-soccer-players
#12
Donna Blokland, Karin M Thijs, Frank J G Backx, Edwin A Goedhart, Bionka M A Huisstede
BACKGROUND: Although it has been suggested that generalized joint hypermobility (GJH) is a risk factor for injury in soccer players, it remains unclear whether this applies to elite female soccer players. PURPOSE: To investigate whether GJH is a risk factor for injury in elite female soccer players. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: Elite female soccer players in the Netherlands were screened at the start of the 2014-2015 competitive season...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28126693/differences-in-knee-adduction-moment-between-healthy-subjects-and-patients-with-osteoarthritis-depend-on-the-knee-axis-definition
#13
S Meireles, F De Groote, S Van Rossom, S Verschueren, I Jonkers
OBJECTIVE: This study, firstly, investigates the effect of using an anatomical versus a functional axis of rotation (FAR) on knee adduction moment (KAM) in healthy subjects and patients with knee osteoarthritis (KOA). Secondly, this study reports KAM for models with FAR calculated using weight-bearing and non-weight-bearing motion. DESIGN: Three musculoskeletal models were created using OpenSim with different knee axis of rotation (AR): transepicondylar axis (TEA); FAR calculated based on SARA algorithm using a weight-bearing motion (wFAR) and a non-weight-bearing motion (nwFAR)...
January 19, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28120020/hip-arthroscopic-capsulotomy-techniques-and-capsular-management-strategies-a-systematic-review
#14
Seper Ekhtiari, Darren de Sa, Chloe E Haldane, Nicole Simunovic, Christopher M Larson, Marc R Safran, Olufemi R Ayeni
PURPOSE: Hip arthroscopy is increasingly used to address hip joint pathology. Iatrogenic instability has been reported as a potential complication, leading to the evaluation of various capsular management strategies. The purpose of this review was to (1) report the techniques used for capsulotomy in hip arthroscopy, (2) understand techniques and indications for capsular closure, and (3) report outcomes based on capsular management strategy. METHODS: MEDLINE, EMBASE, and PubMed were searched and screened in duplicate for relevant studies...
January 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28107551/knee-function-among-elite-handball-and-football-players-1-to-6-years-after-anterior-cruciate-ligament-injury
#15
G Myklebust, R Bahr, A Nilstad, K Steffen
The aim of the study was to describe objective and self-reported knee function for athletes who have returned to elite handball and football play after an ACL injury, comparing these to non-injured players at the same level. A total of 414 handball and 444 football players completed baseline tests from 2007 through 2014, examining lower extremity strength, dynamic balance, knee laxity, and knee function (KOOS questionnaire). Measures were compared between injured and non-injured legs, and between injured legs and legs of controls...
January 20, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28107235/an-experimental-biomechanical-study-on-artificial-atlantoodontoid-joint-replacement-in-dogs
#16
Quanjin Zang, Yanming Liu, Dengfeng Wang, Haopeng Li, Pinglin Yang, Dong Wang, Xijing He
STUDY DESIGN: This study tested the biomechanics of artificial atlantoodontoid joint replacement (AAOJR) in a dog model. Dogs were divided into the artificial AAOJR group (n=10), the decompression group (n=10), and the healthy control group (n=10) using a random number table. OBJECTIVE: To evaluate whether the use of AAOJR for repair of atlantoaxial instability retains rotation and restores stability. SUMMARY OF BACKGROUND DATA: Atlantoaxial instability is characterized by excessive movement or laxity at the junction between the atlas (C1) and axis (C2)...
February 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28100071/neck-tongue-syndrome-a-systematic-review
#17
Amy A Gelfand, Hannah Johnson, Marc Ep Lenaerts, Jessica R Litwin, Charles De Mesa, Nikolai Bogduk, Peter J Goadsby
Objective Neck-Tongue syndrome (NTS) is characterized by brief attacks of neck or occipital pain, or both, brought out by abrupt head turning and accompanied by ipsilateral tongue symptoms. As the disorder is rare, we undertook a systematic review of the literature to identify all reported cases in order to phenotype clinically the disorder and subsequently inform clinical diagnostic criteria. Methods Two electronic databases were searched using the search term "neck tongue syndrome". All English language references were reviewed in full...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28078394/kinematics-of-a-bicruciate-retaining-total-knee-arthroplasty
#18
Thomas J Heyse, Joshua Slane, Geert Peersman, Margo Dirckx, Arne van de Vyver, Philipp Dworschak, Susanne Fuchs-Winkelmann, Lennart Scheys
PURPOSE: The recently reintroduced bicruciate-retaining Total Knee Arthroplasty (BCR TKA) is an interesting approach in the quest for close replication of knee joint biomechanics and kinematics closer to the native knee. Therefore, this study aimed at providing a detailed biomechanical view on the functional resemblance of BCR TKA to the native knee joint. METHODS: Seven fresh-frozen full leg cadaver specimens (76 ± 10 year) were mounted in a 6 degrees-of-freedom kinematic rig that applied a dynamic squatting motion knee flexion...
January 11, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28052834/efficacy-of-dorsoradial-capsulodesis-for-trapeziometacarpal-joint-instability-a%C3%A2-cadaver-study
#19
Brian A Chenoweth, Gavin D O'Mahony, Casey Fitzgerald, Julie A Stoner, Daniel L O'Donoghue, Ghazi M Rayan
PURPOSE: To test the biomechanical properties of the dorsoradial capsulodesis procedure. METHODS: Six cadaveric hands were used. After exposing the trapeziometacarpal (TMC) joint, we placed Kirschner wires in the distal radius and thumb metacarpal. The rotation shear test was then performed to test the joint axial laxity, and angular measurements using Kirschner wires as reference points were documented. The dorsoradial (DR) ligament and capsule were released, followed by the intermetacarpal (IM) ligament; angular measurements were obtained...
January 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28050816/-knuckle-cracking-can-blinded-observers-detect-changes-with-physical-examination-and-sonography
#20
Robert D Boutin, Anuj P Netto, David Nakamura, Cyrus Bateni, Robert M Szabo, Michael Cronan, Brent Foster, William R Barfield, J Anthony Seibert, Abhijit J Chaudhari
BACKGROUND: Voluntary knuckle cracking is a common habit, with a reported prevalence of 25% to 45%. Habitual knuckle cracking also is a frequent source of questions for physicians, and the largest study to date reported an association with functional hand impairments. QUESTIONS/PURPOSES: (1) When compared with subjects who are not habitual knuckle crackers, do habitual knuckle crackers have greater QuickDASH scores, swelling, weakness, joint laxity, or ROM? (2) In subjects who crack their knuckles, does cracking immediately increase ROM? (3) What are the characteristic sonographic findings in joints that crack? METHODS: A prospective, institutional review board-approved study was performed on 400 metacarpophalangeal joints (MPJs) in 40 asymptomatic adult subjects...
April 2017: Clinical Orthopaedics and related Research
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