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Hyperextensibility

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https://www.readbyqxmd.com/read/28734943/deficits-in-col5a2-expression-result-in-novel-skin-and-adipose-abnormalities-and-predisposition-to-aortic-aneurysms-and-dissections
#1
Arick C Park, Noel Phan, Dawiyat Massoudi, Zhenjie Liu, John F Kernien, Sheila M Adams, Jeffrey M Davidson, David E Birk, Bo Liu, Daniel S Greenspan
Classic Ehlers-Danlos syndrome (cEDS) is characterized by fragile, hyperextensible skin and hypermobile joints. cEDS can be caused by heterozygosity for missense mutations in genes COL5A2 and COL5A1, which encode the α2(V) and α1(V) chains, respectively, of collagen V, and is most often caused by COL5A1 null alleles. However, COL5A2 null alleles have yet to be associated with cEDS or other human pathologies. We previously showed that mice homozygous null for the α2(V) gene Col5a2 are early embryonic lethal, whereas haploinsufficiency caused aberrancies of adult skin, but not a frank cEDS-like phenotype, as skin hyperextensibility at low strain and dermal "cauliflower"-contoured collagen fibril aggregates, two cEDS hallmarks, were absent...
July 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28725982/analysis-of-risk-factors-influencing-the-outcome-of-the-epley-maneuver
#2
E Domínguez-Durán, E Domènech-Vadillo, M G Álvarez-Morujo de Sande, R González-Aguado, G Guerra-Jiménez, Á Ramos-Macías, C Morales-Angulo, A J Martín-Mateos, E Figuerola-Massana, H Galera-Ruiz
Benign paroxysmal positional vertigo (BPPV) is the most frequent type of vertigo. The treatment of canalithiasis of the posterior semicircular canal consists in performing a particle-repositioning maneuver, such as the Epley maneuver (EM). However, the EM is not effective in all cases. The objective of this study is to identify risk factors, which predict the EM failure, among the clinical variables recorded in anamnesis and patient examination. This is an observational prospective multicentric study. All patients presenting with BPPV were recruited and applied the EM and appointed for a follow-up visit 7 days later...
July 19, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28725499/the-effect-of-metacarpophalangeal-joint-hyperextension-on-outcomes-in-the-surgical-treatment-of-carpometacarpal-joint-arthritis
#3
David M Brogan, Rose M van Hogezand, Nikola Babovic, Brian Carlsen, Sanjeev Kakar
Purpose  In the surgical treatment of thumb carpometacarpal (CMC) joint arthritis, the effect of mild preoperative metacarpophalangeal (MCP) hyperextension on postoperative functional outcomes is unknown. We sought to examine outcomes after surgical treatment of CMC arthritis in patients with and without mild preexisting MCP deformity. Methods  A retrospective review was conducted to analyze the functional outcomes of patients treated for CMC arthritis at a single institution from March 1998 to May 2009...
August 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28723758/total-knee-arthroplasty-conversion-after-a-failed-lateral-closing-wedge-high-tibial-osteotomy-with-knee-hyperextension-and-secondary-ankle-degeneration-a-case-report
#4
Chen Yao, Xingquan Xu, Sheng Zhou, Xiaoxiao Song, Dongquan Shi, Qing Jiang
RATIONALE: High tibial osteotomy (HTO) has been used widely for medial compartment knee osteoarthritis to correct the deformity and relieve symptoms, especially in young patients who are willing to maintain the high activity level. However, the change of bone morphology, ligament imbalance, limb malalignment, and other complications may influence the short-term outcomes of HTO. Some cases may even require conversion to TKA shortly after HTO because of the loss of correction or pain due to accelerated osteoarthritis...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28720007/extensor-pollicis-brevis-spiral-tenodesis-for-combined-metacarpophalangeal-instability-and-trapeziometacarpal-arthritis
#5
Mark Henry
BACKGROUND: In more advanced stages of trapeziometacarpal arthritis, the thumb metacarpal may develop an adduction contracture, leading to secondary hyperextension instability of the metacarpophalangeal joint. Following trapeziometacarpal arthroplasty, uncorrected substantial metacarpophalangeal hyperextension may contribute to ongoing Z-collapse deformity, weakness of pinch and grip, and patient perception of diminished function. METHODS: We prospectively analyzed a consecutive case series of 55 trapeziometacarpal arthroplasty patients (mean age, 60 years; 7 males) who received simultaneous extensor pollicis brevis spiral tenodesis for thumb metacarpophalangeal hyperextension of at least 50°...
March 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28712024/knee-hyperextension-does-not-adversely-affect-dynamic-in-vivo-kinematics-after-anterior-cruciate-ligament-reconstruction
#6
Kanto Nagai, Tom Gale, Elmar Herbst, Yasutaka Tashiro, James J Irrgang, Scott Tashman, Freddie H Fu, William Anderst
PURPOSE: To evaluate the effect of knee hyperextension on dynamic in vivo kinematics after anterior cruciate ligament reconstruction (ACL-R). METHODS: Forty-two patients underwent unilateral ACL-R. Twenty-four months after surgery, subjects performed level walking and downhill running on a treadmill while dynamic stereo radiographs were acquired at 100 (walking) and 150 Hz (running). Tibiofemoral motion was determined using a validated model-based tracking process, and tibiofemoral translations/rotations were calculated...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28698964/iatrogenic-bilateral-hypoglossal-palsy-following-spinal-surgery
#7
Shrijit Panikkar, Govind Tol, Irfan Siddique
INTRODUCTION: Bilateral hypoglossal palsy is a rare complication during airway management in surgery. CASE PRESENTATION: Isolated bilateral hypoglossal palsy was noted post-operatively in a patient who underwent multiple spinal surgeries associated with prone anaesthesia. DISCUSSION: Risk factors include difficult, multiple intubations, prolonged surgical time, throat pack, and hyperextension of the neck during intubation. CONCLUSION: We aim to create awareness about this complication which has a significant morbidity and negative effect on patient outcomes...
July 11, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28684196/force-transmission-through-the-wrist-during-performance-of-push-ups-on-a-hyperextended-and-a-neutral-wrist
#8
Olga Polovinets, Alon Wolf, Ronit Wollstein
STUDY DESIGN: Cross-sectional cohort. INTRODUCTION: Push-ups are used ubiquitously to evaluate and strengthen the upper body. They are usually performed in 1 of 2 main ways: with the wrist in hyperextension and with the wrist in a neutral position. PURPOSE OF THE STUDY: The purpose of our study was to compare the dynamic forces in the wrist during the 2 push-up styles. METHODS: Fourteen volunteers performed push-ups in 2 different patterns: on a hyperextended wrist and a neutral wrist (NW)...
July 3, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28666040/internal-carotid-artery-dissection-after-indirect-blunt-cervical-trauma-in-an-ice-hockey-goaltender
#9
Ryan M Degen, Matthew E Fink, Lisa Callahan, Kenton Fibel, Jim Ramsay, Bryan T Kelly
Internal carotid artery dissections are rare injuries that can result from both direct cervical trauma and indirect trauma causing sudden cervical hyperextension. Depending on the magnitude of the dissection, clinical presentation ranges from neurologic symptoms, such as Horner syndrome, to relatively mild but persistent headache symptoms, as in the case reported in this article. High clinical suspicion with subsequent neuroimaging is recommended in similar clinical scenarios. Our patient, an ice hockey goaltender, was conservatively treated with rest and serial neuroimaging studies to ensure resolution of the dissection...
May 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28656166/the-effect-of-dynamic-hyperextension-brace-on-osteoporosis-and-hyperkyphosis-reduction-in-postmenopausal-osteoporotic-women
#10
Hooman Shariatzadeh, Bagher Saeed Modaghegh, Alireza Mirzaei
BACKGROUND: Osteoporosis and hyperkyphosis could impose a considerable financial and therapeutic burden on the affected society. Thus, new strategies to prevent or manage such complications are of significant importance. Here we evaluate the effect of 'Dynamic Hyperextension Brace' (DHB) on bone density, and hyperkyphosis correction. METHODS: Sixty postmenopausal women were randomly assigned to the case and control groups and followed for one year. DHB was applied in the case group according to the pre-designed protocol and the patients' clinical and paraclinical parameters, including bone mineral density (BMD), kyphosis angle, osteoporotic fracture, and serum alkaline phosphatase (ALP) were evaluated in two groups...
May 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28650946/the-hyperextension-tibial-plateau-fracture-pattern-a-predictor-of-poor-outcome
#11
Leah J Gonzalez, Ariana Lott, Sanjit Konda, Kenneth A Egol
OBJECTIVES: To assess the outcome of patients with hyperextension bicondylar tibial plateau fractures (HEBTP) to those with other complex tibial plateau fractures DESIGN:: Retrospective cohort design SETTING:: Academic Medical Center PATIENTS:: A total of 84 patients were included in the study. There were 69 patients with 69 knees (82%) that had sustained non-hyperextension bicondylar tibial plateau fractures and 15 patients with 15 knees (18%) that had hyperextension bicondylar tibial plateau fractures (HEBTP) INTERVENTION:: Surgical repair of bicondylar tibial plateau fracture MAIN OUTCOME MEASURES:: Clinical and functional outcomes included knee range of motion, post-operative alignment, NRS pain scores and Short Musculoskeletal Functional Assessment (SMFA) scores at long-term follow-up...
June 15, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28642694/ehlers-danlos-syndrome-hypermobility-type-impact-of-somatosensory-orthoses-on-postural-control-a-pilot-study
#12
Emma G Dupuy, Pascale Leconte, Elodie Vlamynck, Audrey Sultan, Christophe Chesneau, Pierre Denise, Stéphane Besnard, Boris Bienvenu, Leslie M Decker
Elhers-Danlos syndrome (EDS) is the clinical manifestation of connective tissue disorders, and comprises several clinical forms with no specific symptoms and selective medical examinations which result in a delay in diagnosis of about 10 years. The EDS hypermobility type (hEDS) is characterized by generalized joint hypermobility, variable skin hyperextensibility and impaired proprioception. Since somatosensory processing and multisensory integration are crucial for both perception and action, we put forth the hypothesis that somatosensory deficits in hEDS patients may lead, among other clinical symptoms, to misperception of verticality and postural instability...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28620499/intrauterine-death-following-intraamniotic-triiodothyronine-and-thyroxine-therapy-for-fetal-goitrous-hypothyroidism-associated-with-polyhydramnios-and-caused-by-a-thyroglobulin-mutation
#13
Pradeep Vasudevan, Corrina Powell, Adeline K Nicholas, Ian Scudamore, James Greening, Soo-Mi Park, Nadia Schoenmakers
In the absence of maternal thyroid disease or iodine deficiency, fetal goitre is rare and usually attributable to dyshormonogenesis, for which genetic ascertainment is not always undertaken in the UK. Mechanical complications include tracheal and oesophageal compression with resultant polyhydramnios, malpresentation at delivery and neonatal respiratory distress. We report an Indian kindred in which the proband (first-born son) had congenital hypothyroidism (CH) without obvious neonatal goitre. His mother's second pregnancy was complicated by fetal hypothyroid goitre and polyhydramnios, prompting amniotic fluid drainage and intraamniotic therapy (with liothyronine, T3 and levothyroxine, T4)...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28599980/generalized-hypermobility-knee-hyperextension-and-outcomes-after-anterior-cruciate-ligament-reconstruction-prospective-case-control-study-with-mean-6%C3%A2-years-follow-up
#14
Christopher M Larson, Asheesh Bedi, Mark E Dietrich, Jennifer C Swaringen, Corey A Wulf, David M Rowley, M Russell Giveans
PURPOSE: To determine whether generalized hypermobility and contralateral knee hyperextension affect failure rates and patient-related outcomes after anterior cruciate ligament reconstruction (ACLR). METHODS: A total of 226 consecutive patients presenting with acute ACL tears were prospectively evaluated for generalized hypermobility by a modified Beighton criteria. Minimum 2-year follow-up was achieved for 183 knees (81%). Patients underwent ACLR with either bone-patellar-tendon (BPTB) autograft (n = 46), quadrupled hamstring (HT) autograft (n = 85), or allograft tissue (n = 52)...
June 6, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28597058/-flexion-and-extension-osteotomy-of-the-knee
#15
T Diermeier, A B Imhoff, K Beitzel
OBJECTIVES: Flexion and extension osteotomy of the knee for symptomatic malalignment in the sagittal plane. INDICATIONS: Congenital/posttraumatic bony deficiencies in flexion/pathologic hyperextension in the knee. Additional treatment for ligament reconstruction. CONTRAINDICATIONS: Absolute: Infection, critical soft tissue situation, circulatory disorders. Relative: Osteoporosis, heavy smoker, obesity, reduced patient compliance. SURGICAL TECHNIQUE: Diagnostic arthroscopy of the knee...
June 9, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28594517/adolescent-spondylolysis-management-and-return-to-play
#16
William C Warner, Rodrigo Góes Medéa de Mendonça
The most common causes of low back pain in adolescents are spondylolysis and spondylolisthesis. Mechanical factors combined with rapid growth during adolescence place stress on the spine and can result in a stress fracture. Sports that require athletes to repeatedly place the spine in hyperextension may exacerbate both spondylolysis and spondylolisthesis. Many adolescent athletes with spondylolysis or low-grade spondylolisthesis have minimal symptoms and require no treatment or alteration in activity, including sports activity...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28593385/tailor-made-management-of-thoracic-scoliosis-with-cervical-hyperextension-in-muscular-dystrophy
#17
A Angelliaume, L Harper, A Lalioui, A Delgove, Y Lefèvre
PURPOSE: We report the case of a 13-year-old boy managed for fixed cervical hyperextension due to congenital muscular dystrophy with partial merosin deficiency. He presented a right decompensated thoracic scoliosis (T6-L1 Cobb angle 72°) associated with cervical and lumbar lordosis. The spinal extension was accompanied by major flexion of the hip resulting in the trunk being bent forward. This posture caused daily severe back pain responsible for significant loss of quality of life. This led to the decision to perform surgery...
June 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28583488/non-invasive-methods-to-maintain-cervical-spine-position-after-pediatric-tracheal-resections
#18
Kahren K Aydinyan, Jonathan D Day, Gina M Troiano, G Paul Digoy
OBJECTIVES: To present our experience with two methods of neck stabilization after pediatric tracheal resection with primary anastomosis as possible alternatives to the traditional chest-chin suture. METHODS: Children undergoing tracheal resection and/or cricotracheal resection with anastomosis under tension were placed in cervical spine flexion postoperatively with either a chest-chin (Grillo) suture, an Aspen cervical collar or Trulife Johnson cervical-thoracic orthosis (CTO)...
July 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28571040/videolaryngoscopy-during-conscious-sedation-in-patients-not-suitable-for-phonosurgery-by-microlaryngoscopy-a-pilot-study
#19
Vincenzo Saita, Eugenia Allegra, Nicolò Marino, Serena Trapasso, Maria Concetta Monea
BACKGROUND: Microlaryngoscopy is the preferred and most widely used technique in phonosurgery for the treatment of benign and early malignant glottic lesions. However, the procedure may be technically difficult or impossible due to alterations of the cervical spine that may not allow hyperextension of the head or may present general anesthesia contraindications. The aim of this study is to evaluate the efficacy and safety of our surgical approach for lesions of the vocal folds in patients who are not suitable for phonosurgery by microlaryngoscopy...
June 2, 2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28567106/antenatal-ultrasonography-findings-and-magnetic-resonance-imaging-in-a-case-of-pena-shokeir-phenotype
#20
Xuan-Hong Tomai, Thanh-Xuan Jasmine, Thanh-Hai Phan
Pena-Shokeir phenotype is a lethal anomaly characterized by neurogenic arthrogryposis, craniofacial anomalies, and pulmonary hypoplasia. This syndrome should be distinguished from trisomy 18 and arthrogryposis multiplex congenita for better counseling and establishing fetal prognosis. We present the case of a pregnant woman diagnosed with a Pena-Shokeir phenotype affected fetus at 24 weeks of gestation. Prenatal ultrasonography and fetal magnetic resonance imaging detected persistent hyperextension of the lumbar spine, micrognathia, absent septum pellucidum, and all characteristic features of Pena-Shokeir phenotype...
May 2017: Ultrasound: Journal of the British Medical Ultrasound Society
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