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Hyperextension

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https://www.readbyqxmd.com/read/29226163/diagnostic-accuracy-of-3-physical-examination-tests-in-the-assessment-of-hip-microinstability
#1
Daniel J Hoppe, Jeremy N Truntzer, Lauren M Shapiro, Geoffrey D Abrams, Marc R Safran
Background: Hip microinstability is a diagnosis gaining increasing interest. Physical examination tests to identify microinstability have not been objectively investigated using intraoperative confirmation of instability as a reference standard. Purpose: To determine the test characteristics and diagnostic accuracy of 3 physical examination maneuvers in the detection of hip microinstability. Study Design: Cohort study (diagnosis); Level of evidence, 2...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29208202/-deformities-of-the-finger-joints
#2
Pernille Nygaard Vedel, Jørgen Tranum-Jensen, Lars B Dahlin, Elisabeth Brogren, Niels Henrik Søe
Extension of the fingers is a complex act. Boutonnière deformity is defined by flexion at the proximal inter-phalangeal (PIP) joint and hyperextension at the distal interphalangeal (DIP) joint due to disruption of the central slip of the extensor tendon. Swan neck deformity is defined by hyperextension at the PIP joint and flexion at the DIP joint, and the pathology is divided into intrinsic, extrinsic, and articular. The deformities are a result of imbalance of the tendons and ligaments in the fingers. Treatment is depending on the underlying cause and includes surgery and non-operative treatment...
November 27, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/29206923/vascular-abnormalities-in-the-placenta-of-chst14-fetuses-implications-in-the-pathophysiology-of-perinatal-lethality-of-the-murine-model-and-vascular-lesions-in-human-chst14-d4st1-deficiency
#3
Takahiro Yoshizawa, Shuji Mizumoto, Yuki Takahashi, Shin Shimada, Kazuyuki Sugahara, Jun Nakayama, Shin'ichi Takeda, Yoshihiro Nomura, Yuko Nitahara-Kasahara, Takashi Okada, Kiyoshi Matsumoto, Shuhei Yamada, Tomoki Kosho
Collagen is one of the most important components of the extracellular matrix that is involved in the strength of tissues, cell adhesion, and cell proliferation. Mutations in several collagen and post-translational modification enzyme genes cause Ehlers-Danlos syndrome (EDS) characterized by joint and skin hyperextensibility as well as fragility of various organs. Carbohydrate sulfotransferase 14/dermatan 4-O-sulfotransferase-1 (CHST14/D4ST1) is a critical enzyme for biosynthesis of dermatan sulfate, a side chain of various proteoglycans including biglycan that regulates collagen fibrils through their interaction...
December 1, 2017: Glycobiology
https://www.readbyqxmd.com/read/29179604/anterior-screw-fixation-in-type-ii-odontoid-fracture-in-an-18-month-old-girl-a-case-report-and-review-of-the-literature
#4
Majid Reza Farrokhi, Hamid Rezaei, Farnaz Farrokhi
Odontoid fractures are among the rare cervical spine injuries in pediatric population and thus the optimal management of these injuries is controversial. The increasing trend in road traffic accidents and improvement in diagnostic modalities has led to an increased detection of odontoid fractures in pediatric population. We herein report type II odontoid fracture in an 18-month-old girl after falling off the motorcycle leading to hyperextension and flexion injury. She was successfully treated with anterior odontoid screw fixation followed by immobilization with hard collar for 2 months...
November 28, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29178241/rare-fmr1-gene-mutations-causing-fragile-x-syndrome-a-review
#5
Adam F Sitzmann, Robert T Hagelstrom, Flora Tassone, Randi J Hagerman, Merlin G Butler
Fragile X syndrome (FXS) is the most common inherited form of intellectual disability, typically due to CGG-repeat expansions in the FMR1 gene leading to lack of expression. We identified a rare FMR1 gene mutation (c.413G>A), previously reported in a single patient and reviewed the literature for other rare FMR1 mutations. Our patient at 10 years of age presented with the classical findings of FXS including intellectual disability, autism, craniofacial findings, hyperextensibility, fleshy hands, flat feet, unsteady gait, and seizures but without the typical CGG-repeat expansion...
November 27, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29174476/brown-sequard-syndrome-caused-by-hyperextension-in-a-patient-with-atlantoaxial-subluxation-due-to-an-os-odontoideum
#6
Dong-Yeong Lee, Soon-Taek Jeong, Tae-Ho Lee, Dong-Hee Kim
Brown-Sequard syndrome is an uncommon complication of atlantoaxial arthrodesis. A 50-year-old female visited our emergency department after falling from a ladder. Radiologic evaluations revealed chronic C1-2 instability with acute spinal cord injury. The day after atlantoaxial fusion was performed, she developed left-sided motor weakness and the loss of right-sided pain and temperature sensation. Based on physical examination and radiologic findings, we diagnosed her as having Brown-Sequard syndrome. Spine surgeons performing this procedure should therefore consider Brown-Sequard syndrome if a patient displays signs of postoperative hemiplegia...
November 23, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29164381/assessment-of-micro-dose-biplanar-radiography-in-lower-limb-measurements-in-children
#7
Héloïse Lerisson, Élisa Amzallag-Bellenger, Aurélie Cebulski-Delebarre, Eric Nectoux, Geoffrey Desmulliez, Alain Duhamel, Elodie Drumez, Bernard Herbaux, Nathalie Boutry
OBJECTIVES: To evaluate in children microdose protocol compared with low dose for lower limb alignment (LLA) measurements on biplanar radiography. METHODS: Children 6 years or older were included. Height, weight and hip width were measured prior to imaging. Hip width allowed classifying children into morphotype M1 (width <25 cm), M2 (25-35 cm) or M3 (>35 cm) corresponding to predefined acquisition parameters (kV, mA, tube speed). Micro- and low-dose protocols were used alternately, with simultaneous acquisition of frontal and lateral radiographs...
November 21, 2017: European Radiology
https://www.readbyqxmd.com/read/29150740/severe-rigid-scheuermann-kyphosis-in-adult-patients-correction-with-posterior-only-approach
#8
B Mirzashahi, M Chehrassan, A Arfa, M Farzan
PURPOSE: Scheuermann kyphosis is the most common structural kyphosis among adolescence and young people. Surgical treatment may be performed through combined anterior and posterior or posterior-only approaches; to our knowledge, the efficacy of posterior-only approach as less invasive procedure is not well studied in case of severe rigid Scheuermann kyphosis. MATERIALS AND METHODS: Eighteen patients with severe rigid Scheuermann kyphosis operated through only posterior approach from 2013 to 2016 were evaluated...
November 17, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/29110218/cervical-sagittal-balance-a-biomechanical-perspective-can-help-clinical-practice
#9
REVIEW
Avinash G Patwardhan, Saeed Khayatzadeh, Robert M Havey, Leonard I Voronov, Zachary A Smith, Olivia Kalmanson, Alexander J Ghanayem, William Sears
PURPOSE: In this article, we summarize our work on understanding the influence of cervical sagittal malalignment on the mechanics of the cervical spine. METHODS: Biomechanical studies were performed using an ex vivo laboratory model to study the kinematic and kinetic response of human cervical spine specimens in the setting of cervical sagittal imbalance. The model allowed controlled variations of C2-C7 Sagittal Vertical Alignment (C2-C7 SVA) and T1-Slope so that clinically relevant sagittally malaligned profiles could be prescribed, while maintaining horizontal gaze, and their biomechanical consequences studied...
November 6, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29105590/swan-neck-deformity-due-to-chronic-radial-collateral-ligament-injury-of-the-little-finger-proximal-interphalangeal-joint
#10
Yoshitaka Hamada, Hiroaki Takai, Ryousuke Satoh, Naohito Hibino, Yukiko Ueda, Yoshitaka Minamikawa
We present seven cases of a relatively rare swan neck deformity resulting from chronic radial collateral ligament (RCL) injury of the proximal interphalangeal (PIP) joint in the little finger. All patients were middle-aged women (mean 51 years old, range 42-55), and the duration between the initial injury and surgery was 20 years (range 5-40). The chief complaint was painful snapping of the PIP joint. All patients had hyperextension and ulnar deviation of the PIP joint with mobile swan neck deformities that had not improved with conservative treatment...
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/29100001/effects-of-anterior-closing-wedge-tibial-osteotomy-on-anterior-cruciate-ligament-force-and-knee-kinematics
#11
Kent T Yamaguchi, Edward C Cheung, Keith L Markolf, Daniel V Boguszewski, Justin Mathew, David R McAllister, Frank A Petrigliano
BACKGROUND: A certain percentage of patients undergoing anterior cruciate ligament (ACL) reconstruction will experience graft failure, and there is mounting evidence that an increased posterior tibial slope (PTS) may be a predisposing factor. Theoretically, under tibiofemoral compression force (TFC), a reduced PTS would induce less anterior tibial translation (ATT) and lower ACL force. HYPOTHESIS: Ten-degree anterior closing wedge osteotomy of the proximal tibia will significantly reduce ACL force and alter knee kinematics during robotic testing...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29081707/analysis-of-the-pattern-and-mechanism-of-elbow-injuries-related-to-armbar-type-armlocks-in-jiu-jitsu-fighters
#12
Thiago Bernardo Carvalho DE Almeida, Eiffel Tsuyoshi Dobashi, Alexandre Yukio Nishimi, Eduardo Bernardo DE Almeida, Luciano Pascarelli, Luciano Miller Reis Rodrigues
OBJECTIVE: The objective of this study was to analyze elbow injuries and their probable mechanism in Jiu-Jitsu fighters resulting from the armbar-type armlock. METHODS: We evaluated 5 high-performance Jiu-Jitsu fighters from the Gracie Elite gym who were injured during a tournament. All were healthy males with a mean age of 28.8 years. The right arm was involved in three patients (60%). The athletes were followed for approximately 4.6 months, and pain was present in all cases...
September 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/29079241/ankle-fracture-associated-with-rupture-of-the-achilles-tendon-case-report-and-review-of-the-literature
#13
Mohammed Elmajee, Asan Rafee, Tolupe Williams
Solitary ankle fracture or Achilles Tendon (AT) rupture might not be an uncommon injury. However, concomitant ipsilateral ankle fracture with AT rupture is rare. The present report discusses this rare combination. A 30-year-old female had fallen while rock climbing and sustained a closed fracture of the medial malleolus with an ipsilateral complete AT rupture. Most of the reported cases had similar patterns, not only in terms of history, but also in terms of a similar fracture pattern. This rare combination of orthopedic injuries tends to occur when an abrupt excessive force is applied to the forefoot, with subsequent ankle hyperextension or hindfoot inversion...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29041024/-scar-contracture-with-hyperextension-in-the-wrist-due-to-extravasation-in-the-childhood-two-stage-scar-correction-with-the-dermal-regeneration-template-integra%C3%A2-and-skin-graft
#14
Fabian R Wissing, Seung-Min Ryu, Henrik Menke
No abstract text is available yet for this article.
October 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/29035401/skydiving-and-the-risk-of-cervical-disc-herniation
#15
Ayşe Coşkun Beyan, Yücel Demiral, Banu Dilek, Nur Şafak Alici, Cem Bediz, Arif Çimrin
The skydiving/parachuting sport which has recently gained popularity is also known for its accidents and injuries. However, there are a few studies related to its occupational ergonomic risks and occupational musculoskeletal diseases. It has been reported that the sudden hyperextension of the neck during the parachute opening, so called opening shock results in neck pain. It has been found that the jumpers are subjected to an average deceleration of 3-5 times the earth's gravitational acceleration (3-5 G) during parachute opening shock...
November 3, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/29032848/-ehlers-danlos-syndromes
#16
D-P Germain
Ehlers-Danlos syndromes (EDS) are a heterogeneous group of inheritable connective tissue disorders characterized by skin hyperextensibility, joint hypermobility and cutaneous fragility with delayed wound healing. Over and above these common features, they differ in the presence or absence of various organ and tissue abnormalities, and differences in genetic causal mechanisms and degree of severity. They are complex and multisystem diseases, with the majority being highly disabling because of major joint problems and neurosensory deficiencies, and in some cases, they may be life-threatening due to associated complications, especially vascular disorders...
December 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/29026819/the-role-of-dynamic-ultrasound-in-the-immediate-conservative-treatment-of-volar-plate-injuries-of-the-pip-joint-a-series-of-78-patients
#17
Franck Marie Leclère, Lukas Mathys, Bettina Juon, Esther Vögelin
INTRODUCTION: The management of volar plate avulsion fractures in the context of a stable joint and a bony fragment of less than 30% has traditionally been conservative. This study was performed to assess volar plate healing with high-resolution ultrasound in order to provide early full mobilization. MATERIAL AND METHODS: Between January 2012 and December 2013, 78 patients with volar plate injuries of the proximal interphalangeal (PIP) joints (42 distortions and 36 dislocations) were treated conservatively in our department for volar plate avulsion fracture associated with stable joint and bony fragment inferior to 30% of the intra-articular surface assessed both by radiography and ultrasound...
August 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29024828/a-classical-ehlers-danlos-syndrome-family-with-incomplete-presentation-diagnosed-by-molecular-testing
#18
Marina Colombi, Chiara Dordoni, Valeria Cinquina, Marina Venturini, Marco Ritelli
The 2017 EDS revised nosology indicates that minimal criteria suggestive for classical Ehlers-Danlos syndrome (cEDS) are skin hyperextensibility plus atrophic scarring together with either generalized joint hypermobility (gJHM) and/or at least three minor criteria that include cutaneous features and gJHM complications. Confirmatory molecular testing is obligatory to reach a final diagnosis. Although the large majority of the patients presents with these clinical features, some do not and might remain undiagnosed or misdiagnosed...
October 9, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29021675/surgical-treatment-of-bilateral-nondisplaced-isthmic-lysis-by-interlaminar-fixation-device
#19
Keyvan Mostofi, Reza Karimi Khouzani
STUDY DESIGN: Spondylolysis is a defect in the portion of pars interarticularis. The latter affects approximately 6% of the population. It is caused by repetitive trauma in hyperextension. Low back pain is the most common symptom. METHODS: We implanted interspinous process devices in 12 patients with isthmic lysis without spondylolisthesis for low back pain. The purpose of the surgery was to conduct a minimally invasive procedure. RESULTS: In eight cases, patients became asymptomatic...
July 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29018143/knee-upside-down
#20
Steven G J van der Aart, Remko J A Sonnega, Dirk-Jan Hofstee
We present a case of a 19-year-old woman with a forced hyperextension trauma of the knee causing a posteromedial fracture, a medial meniscus root tear and rupture of the posterior cruciate ligament. The posteromedial fracture of the tibial plateau was treated operatively with open reduction and internal fixation. Anatomical reconstruction was achieved. Postoperative treatment included unlimited flexion and minimal weight bearing. After 3 months, the patient had minimal pain after weight bearing and returned to preoperative range of motion...
October 9, 2017: BMJ Case Reports
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