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Subluxation

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https://www.readbyqxmd.com/read/27900701/elbow-instability-are-we-able-to-classify-it-review-of-the-literature-and-proposal-of-an-all-inclusive-classification-system
#1
REVIEW
A Marinelli, E Guerra, R Rotini
BACKGROUND: In the recent years, considerable improvements have come in biomechanical knowledge about the role of elbow stabilizers. In particular, the complex interactions among the different stabilizers when injured at the same time have been better understood. Anyway, uncertainties about both nomenclature and classification still exist in the definition of the different patterns of instability. MATERIAL AND METHODS: The authors examine the literature of the last 130 years about elbow instability classification, analyzing the intuitions and the value of each of them...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27900195/knee-osteoarthritis-in-traumatic-knee-symptoms-in-general-practice-6-year-cohort-study
#2
Marlous Kastelein, Pim A J Luijsterburg, Ingrid M Koster, Jan A N Verhaar, Bart W Koes, Dammis Vroegindeweij, Sita M A Bierma-Zeinstra, Edwin H G Oei
AIM: To identify degenerative knee abnormalities using MRI and radiography 6 years after knee trauma, their relation with persistent knee symptoms and baseline prognostic factors. METHODS: Adults (18-65 years) with incident traumatic knee symptoms visiting their general practitioner were followed up for 6 years and underwent baseline MRI and 6-year follow-up MRI and radiography. Logistic regression was used to analyse associations between various degenerative abnormalities on 6-year MRI and radiography, persistent knee symptoms and baseline prognostic factors for knee osteoarthritis (OA) on 6-year MRI...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27887871/radiographic-results-of-augmented-all-polyethylene-glenoids-in-the-presence-of-posterior-glenoid-bone-loss-during-total-shoulder-arthroplasty
#3
Scott P Stephens, Edwin E Spencer, Michael A Wirth
BACKGROUND: Chronic osteoarthritis can result in glenohumeral subluxation and loss of posterior glenoid bone. This can alter normal glenohumeral biomechanics and affect the stress placed on the glenoid implant after total shoulder arthroplasty. This study evaluated the clinical and radiographic results of an augmented all-polyethylene glenoid for the treatment of glenoid osteoarthritis in the presence of posterior glenoid bone loss and determined whether any failures or complications occurred with short-term follow-up...
November 22, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27885850/detour-sign-in-the-diagnosis-of-subluxation-of-the-long-head-of-the-biceps-tendon-with-arthroscopic-correlation
#4
Eun Kyung Khil, Jang Gyu Cha, Ji Sook Yi, Hyun-Joo Kim, Kyung Dae Min, Young Cheol Yoon, Chan Hong Jeon
OBJECTIVES: To determine whether detection of the detour sign via magnetic resonance imaging (MRI) indicates of subluxation of the long head of the biceps tendon (SLBT) in the shoulder joint and to investigate the association of SLBT with the degeneration of the long head of the biceps tendon (LBT) and rotator cuff tears. METHODS: This retrospective study included 65 patients with shoulder pain who underwent shoulder MRI and arthroscopic surgery. When axial images revealed that the LBT was displaced over the inner rim of the bicipital groove with some remaining contact with the groove (criterion 1), or demonstrated a "detour sign" of the biceps tendon (criterion 2), the lesion was diagnosed an SLBT...
November 25, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27868431/tracking-changes-in-glenohumeral-joint-position-in-acute-post-stroke-hemiparetic-patients-an-observational-study
#5
Praline Choolun, Suzanne Kuys, Leanne Bisset
AIMS: The majority of people develop hemiparetic shoulder inferior subluxation following stroke, but the timing of onset is unknown. This study aimed to assess changes in glenohumeral joint centre of rotation (GHJC) during the first six weeks following stroke. METHODS: Thirty patients with confirmed diagnosis of stroke (age 65 ± 19 years, 60% female, 40% right side affected) were assessed within 14 days of admission and at six weeks along with matched controls...
November 20, 2016: Disability and Rehabilitation
https://www.readbyqxmd.com/read/27866971/snapping-knee-caused-by-the-thickening-of-the-medial-hamstrings
#6
B de la Hera Cremades, L Escribano Rueda, A Lara Rubio
We report a case of symptomatic subluxation of the semitendinosus and gracilis over the medial condyle of the tibia caused by the thickening of its tendons. Snapping was reproduced on active extension. Clinical examination and, above all, dynamic ultrasound were the key for the diagnosis because other imaging tests were normal. Due to failure of conservative treatment with physiotherapy and infiltrations, surgery was undertaken, involving desinsertion and excision of distal 8cm segment of the semitendinosus and gracilis tendons...
November 17, 2016: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/27861209/comparison-of-percutaneous-reduction-and-pin-fixation-in-acute-and-chronic-pediatric-mallet-fractures
#7
Manoj Reddy, Christine A Ho
BACKGROUND: Although pediatric mallet fractures are more common than adult fractures, no techniques have focused on surgical fixation of pediatric mallet fractures. This study aims to describe the technique and results of percutaneous reduction and fixation in acute and chronic pediatric mallet fractures. METHODS: This is a retrospective review of 51 pediatric mallet fractures treated with percutaneous wire fixation from 2007 to 2014; 38 were acute fractures and 13 were chronic (>4 wk from injury)...
November 17, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/27857933/retro-odontoid-pseudotumor-without-atlantoaxial-subluxation-or-rheumatic-arthritis
#8
Seung Han Yu, Hyuk Jin Choi, Won Ho Cho, Seung Heon Cha, In Ho Han
We present a case of retro-odontoid pseudotumor (ROP) without rheumatoid arthritis (RA) or atlantoaxial subluxation (AAS). A 76-year-old woman presented with paresthesia and weakness of both lower and upper extremities. She had no laboratory or physical findings of RA. Dynamic X-ray showed no AAS and magnetic resonance imaging (MRI) showed a retro-odontoid mass compressing the spinal cord. Transdural mass debulking and biopsy were performed via minimal left suboccipital craniectomy and C1 hemilaminectomy. Two months after surgery, her symptoms were aggravated...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27856099/a-reconstructive-stabilization-technique-for-nontraumatic-or-chronic-traumatic-extensor-tendon-subluxation
#9
REVIEW
Jae Hoon Lee, Jong Hun Baek, Jung Seok Lee
Subluxation of the extensor tendon results from a disruption to the sagittal band at the metacarpophalangeal joint. When conservative treatment fails to correct the subluxation, surgical treatment may be necessary. Surgical techniques for chronic cases vary in graft source and graft pathway. We present a surgical technique to recentralize and stabilize the extensor tendon using a residual ruptured sagittal band. This technique is simple and effective without donor site morbidity and seems to provide potential biomechanical advantages by restoring nearly normal anatomy...
November 14, 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/27847572/risk-factors-for-the-development-and-progression-of-atlantoaxial-subluxation-in-surgically-treated-rheumatoid-arthritis-patients-considering-the-time-interval-between-rheumatoid-arthritis-diagnosis-and-surgery
#10
Min-Kyun Na, Hyoung-Joon Chun, Koang-Hum Bak, Hyeong-Joong Yi, Je Il Ryu, Myung-Hoon Han
OBJECTIVE: Rheumatoid arthritis (RA) is a systemic disease that can affect the cervical spine, especially the atlantoaxial region. The present study evaluated the risk factors for atlantoaxial subluxation (AAS) development and progression in patients who have undergone surgical treatment. METHODS: We retrospectively analyzed the data of 62 patients with RA and surgically treated AAS between 2002 and 2015. Additionally, we identified 62 patients as controls using propensity score matching of sex and age among 12667 RA patients from a rheumatology registry between 2007 and 2015...
November 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27843898/nonteratoid-medulloepithelioma-presenting-in-a-78-year-old-male
#11
Christopher K H Burris, Vasilios P Papastefanou, Caroline Thaung, Gordon Hay, Marianne Grantham, Victoria M L Cohen
BACKGROUND: Medulloepithelioma is a rare congenital neoplasm derived from precursors of the nonpigmented ciliary epithelium of the ciliary body. The average patient age at clinical presentation is 3.8 years. CASE PRESENTATION: We present the case of a 78-year-old male with progressive lens subluxation and ocular hypertension who was found to have a ciliary body mass. After enucleation for presumed ciliary body melanoma, histopathology showed a nonteratoid medulloepithelioma...
October 2016: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/27832347/fracture-line-distribution-of-olecranon-fractures
#12
Bart Lubberts, Jos J Mellema, Stein J Janssen, David Ring
PURPOSE: The association between specific olecranon fracture characteristics (e.g., displacement, fragmentation, subluxation) and fracture line distribution might help surgeons predict intra-articular fracture location based on fracture characteristics that can be determined on radiographs. We hypothesized that fracture mapping techniques would reveal different fracture patterns for minimally displaced fractures, displaced fractures, and fracture-dislocations of the olecranon. METHODS: A consecutive series of 78 patients with olecranon fractures were evaluated using initial radiographs and computed tomography scans and characterized according to the Mayo classification...
November 10, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27830965/incidence-and-risk-factors-for-cervical-lesions-in-patients-with-rheumatoid-arthritis-under-the-current-pharmacologic-treatment-paradigm
#13
Takashi Kaito, Shirou Ohshima, Hiroyasu Fujiwara, Takahiro Makino, Kazuo Yonenobu, Hideki Yoshikawa
OBJECTIVE: To elucidate the incidence and risk factors for cervical lesions in patients with rheumatic arthritis (RA) under the current pharmacologic treatment paradigm. METHODS: Of patients with RA onset after 2000, 151 who introduced biologic agents (BAs) because of high disease activity and underwent cervical radiography more than 5 years after onset were included. Incidence of those with cervical lesions and predictors of cervical lesions were analyzed. Mean disease duration was 8...
November 10, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27830361/long-term-results-of-valgus-osteotomy-for-terminal-stage-osteoarthritis-of-the-hip
#14
Suguru Ohsawa
INTRODUCTION: Pauwels' femoral osteotomy is a classical and joint-preserving method for osteoarthritis of the hip caused by acetabular dysplasia and/or subluxation. However, its application for terminal-stage osteoarthritis of the hip, and the long-term results, have not yet been reported. We herein aim to investigate the long-term results of valgus osteotomy for terminal-stage osteoarthritis of the hip. METHODS: Eighty-two hips of 75 patients (74 women and 1 man, mean age: 48...
November 9, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27828848/lateral-shelf-acetabuloplasty-for-severe-legg-calv%C3%A3-perthes-disease-in-patients-older-than-8-years-a-mean-eleven-year-follow-up
#15
Wen-Chao Li, Rui-Jiang Xu
The natural history of Legg-Calvé-Perthes disease (LCPD) in children older than 8 years is usually poor without treatment. The treatment goal is to prevent deformity and incongruity of the hip by achieving a stable spherical femoral head in a deep, congruent, sharp-edged acetabulum, with a good range of hip movement at skeletal maturity. Lateral shelf acetabuloplasty in LCPD can increase the coverage of the femoral head, benefiting the remodeling of the femoral head and acetabulum. The aim of this study was to evaluate the efficacy of lateral shelf acetabuloplasty for severe LCPD in patients older than 8 years...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27826907/the-unstable-knee-in-congenital-limb-deficiency
#16
REVIEW
Gabriel T Mindler, Christof Radler, Rudolf Ganger
PURPOSE: Instability of the knee is a common finding in patients with congenital limb deficiency. The instability can be attributed to soft tissue abnormalities, frontal, sagittal or rotational deformity of the lower limb and bony dysplasia of the patella or of the femoral condyles. In most of the cases, these pathomorphologic changes stay asymptomatic in daily activity. However, instability can appear during deformity correction and bone-lengthening procedures, leading to flexion contracture or subluxation of the knee...
November 8, 2016: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/27824552/ehlers-danlos-syndrome-hypermobility-type-a-much-neglected-multisystemic-disorder
#17
REVIEW
Yael Gazit, Giris Jacob, Rodney Grahame
Ehlers-Danlos syndrome (EDS)-hypermobility type (HT) is considered to be the most common subtype of EDS and the least severe one; EDS-HT is considered to be identical to the joint hypermobility syndrome and manifests with musculoskeletal complaints, joint instability, and soft tissue overuse injury. Musculoskeletal complaints manifest with joint pain of non-inflammatory origin and/or spinal pain. Joint instability leads to dislocation or subluxation and involves peripheral joints as well as central joints, including the temporomandibular joints, sacroiliac joints, and hip joints...
October 31, 2016: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/27817139/three-dimensional-reconstruction-using-stereoradiography-for-evaluating-adult-spinal-deformity-a-reproducibility-study
#18
Emmanuelle Ferrero, Renaud Lafage, Shaleen Vira, Pierre-Yves Rohan, Jonathan Oren, Edward Delsole, Pierre Guigui, Frank Schwab, Virginie Lafage, Wafa Skalli
PURPOSE: In addition to the sagittal alignment, impact of transverse plane parameters (TPP) and rotatory subluxation on patients reported outcomes were highlighted. One of the hypotheses for genesis of degenerative scoliosis is disc degeneration with increased axial vertebral (AVR) and intervertebral rotation (AIR). Therefore, TPP analysis at early stage of the scoliosis seems of particular interest. This study aims at assessing reliability of tridimensional (3D) reconstructions of adult spinal deformity (ASD) patients...
November 5, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27815009/comparison-of-intra-articular-findings-and-clinical-features-between-patients-with-symptomatic-anterior-instability-after-recurrent-shoulder-subluxation-and-dislocation
#19
Sang-Jin Shin, Young-Won Ko, Yoon Sang Jeon, Juyeob Lee, Rag Gyu Kim, Hyungki Baek
PURPOSE: The purpose of this study was to compare the prevalence of concomitant intra-articular pathologies and clinical manifestations after arthroscopic stabilization between patients with symptomatic anterior instabilities following recurrent shoulder subluxations and dislocations. METHODS: Among patients who underwent arthroscopic stabilization, 28 patients who experienced shoulder subluxations (subluxation group, 26.7 ± 1.8 years) and 84 who had shoulder dislocations (dislocation group, 25...
November 1, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27811513/patellofemoral-pain-and-instability-in-adolescent-athletes
#20
Matthew Bessette, Paul Saluan
Injuries and disorders of the patellofemoral joint in the adolescent athlete can encompass a wide spectrum of symptomatology and pathology. Anterior knee pain is a common presenting symptom in sports medicine clinics, and can have numerous underlying etiologies. This activity-related pain may be the manifestation of enthesopathy, tendinopathy, fat pad impingement, or numerous other conditions, but is more commonly related to more subtle skeletal and muscular imbalances. Treatment is typically nonoperative in nature, and excellent results are reported with physical therapy...
December 2016: Sports Medicine and Arthroscopy Review
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