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orthopedic MRI

Kelechi R Okoroha, Nima Mehran, Jonathan Duncan, Travis Washington, Tyler Spiering, Michael J Bey, Marnix Van Holsbeeck, Vasilios Moutzouros
Ultrasound and magnetic resonance imaging (MRI) are both capable of diagnosing full-thickness rotator cuff tears. However, it is unknown which imaging modality is more accurate and precise in evaluating the characteristics of full-thickness rotator cuff tears in a surgical population. This study reviewed 114 patients who underwent arthroscopic repair of a full-thickness rotator cuff tear over a 1-year period. Of these patients, 61 had both preoperative MRI and ultrasound for review. Three musculoskeletal radiologists evaluated each ultrasound and MRI in a randomized and blinded fashion on 2 separate occasions...
October 18, 2016: Orthopedics
Kris Radcliff, William B Morrison, Christopher Kepler, Jeffrey Moore, Gursukhman S Sidhu, David Gendelberg, Luciano Miller, Marcos A Sonagli, Alexander R Vaccaro
STUDY DESIGN: Retrospective case series. OBJECTIVE: To identify specific magnetic resonance imaging (MRI) characteristics of epidural fluid collections associated with infection, hematoma, or cerebrospinal fluid (CSF). SUMMARY OF BACKGROUND DATA: Interpretation of postoperative MRI can be challenging after lumbar fusion. The purpose of this study was to identify specific MRI characteristics of epidural fluid collections associated with infection, hematoma, or CSF...
November 2016: Clinical Spine Surgery
K Rajkumar, P Mukhopadhyay, Ramen Sinha
PURPOSE: The study assessed the efficacy of orthopedic suture anchor as a modified suture anchor for disc repositioning in case of a closed lock of TMJ. PATIENT AND METHODS: Disc repositioning was undertaken via a mini preauricular approach. The disc was repositioned on the surface of the condyle and stabilized using an orthopedic suture anchor. Postoperatively functional outcomes were assessed in terms of reduction in pain, joint movement and absence of joint noise and clicking sounds...
September 2016: Journal of Maxillofacial and Oral Surgery
Xudong Miao, Yongping Wu, Huimin Tao, Disheng Yang, Lu Huang
BACKGROUND: Transfer of a flexor hallucis longus (FHL) tendon can not only reconstruct the Achilles tendon but also provide ischemic tendinous tissues with a rich blood supply to enhance wound healing. This retrospective study aims to investigate clinical outcomes in patients who underwent repair of Kuwada grade IV chronic Achilles tendon rupture with long hallucis longus tendons harvested using a minimally invasive technique. MATERIALS AND METHODS: 35 patients who were treated for Kuwada grade IV Achilles tendon injuries from July 2006 to June 2011 were included in this retrospective study...
September 2016: Indian Journal of Orthopaedics
A Schnabel, U Range, G Hahn, T Siepmann, R Berner, C M Hedrich
Historically, osteomyelitis was considered an infectious disorder. More recently, inflammatory mechanisms were recognized causing a significant proportion of pediatric osteomyelitis. This study was to compare characteristics of children with chronic non-bacterial (CNO) and bacterial osteomyelitis (BOM). A chart review of osteomyelitis patients from the departments of pediatrics, pediatric surgery, orthopedic surgery, and oral and maxillofacial surgery was conducted in a tertiary referral center, covering the years 2004-2014...
October 11, 2016: Rheumatology International
Shanshan Bao, Jonathan I Tamir, Jeffrey L Young, Umar Tariq, Martin Uecker, Peng Lai, Weitian Chen, Michael Lustig, Shreyas S Vasanawala
PURPOSE: To develop and clinically evaluate a pediatric knee magnetic resonance imaging (MRI) technique based on volumetric fast spin-echo (3DFSE) and compare its diagnostic performance, image quality, and imaging time to that of a conventional 2D protocol. MATERIALS AND METHODS: A 3DFSE sequence was modified and combined with a compressed sensing-based reconstruction resolving multiple image contrasts, a technique termed T2 Shuffling (T2 Sh). With Institutional Review Board (IRB) approval, 28 consecutive children referred for 3T knee MRI prospectively underwent a standard clinical knee protocol followed by T2 Sh...
October 11, 2016: Journal of Magnetic Resonance Imaging: JMRI
Ahmed Hamed Kassem Abdelaal, Norio Yamamoto, Katsuhiro Hayashi, Akihiko Takeuchii, Hiroyuki Tsuchiyai
INTRODUCTION: Leiomyoma is benign smooth-muscle tumor most commonly arising in the uterus, the gastrointestinal tract, and the skin. Leiomyomata are infrequently seen in the extremities and rarely seen in the bone. It is usually presented by a gradually increasing pain with nonspecific radiological findings, and could be a differential diagnosis for wide range of bone tumors. CASE PRESENTATION: We report a case of a 73-year-old Japanese female patient with a painful intraosseous leiomyoma involving the proximal tibia...
April 2016: Journal of Orthopaedic Case Reports
Tae Hyun Kim, Yoon Ha, Jun Jae Shin, Yong Eun Cho, Ji Hae Lee, Woo Ho Cho
Patients with intramedullary signal intensity (SI) changes have a poor prognosis after surgical decompression in cervical compressive myelopathy (CCM); however, some patients show no clear relationship between the SI and postsurgical prognosis. This discrepancy may be because no comprehensive and proper quantitative evaluation exists to assess SI on magnetic resonance imaging (MRI). The purpose of this study was prospectively to evaluate the correlation between the clinical features, neurological outcome of patients with CCM, and the quantitative assessment of SI changes preoperatively and postoperatively, and the correlation with SI severity...
September 2016: Medicine (Baltimore)
Fabrice Michel, Arnaud Dupeyron, Jean Jacques Labat, Etienne Aleton, Bernard Parratte
OBJECTIVE: Among pelvitrochanteric muscles, the internal obturator muscle is implicated in some pain projected at the buttock or perineum. Even though the pathophysiology is not completely understood, its responsibility is often held in clinical practice and in the literature due to effectiveness of botulinum toxin injections, constituting a therapeutic test. The objective is to enhance the couple ultrasound/EMG in difficult injections. MATERIAL/PATIENTS AND METHODS: Eighteen patients were treated in the physical medicine department (Besançon) from September 2015 to February 2016 for gluteal or perineal pain suspected to be related to abnormal spasm of the internal obturator muscle...
September 2016: Annals of Physical and Rehabilitation Medicine
Nam Lee, Do Heum Yoon, Keung Nyun Kim, Hyun Chul Shin, Dong Ah Shin, Yoon Ha
OBJECTIVES: The correction of clinical and radiologic abnormalities in patients with symptomatic ossification of the posterior longitudinal ligament (OPLL) is the current mainstay of treatment. This study aimed to identify radiographic predictors of severity of myelopathy in patients with symptomatic OPLL. METHODS: Fifty patients with symptomatic cervical OPLL were enrolled. Based on Japanese Orthopedic Association (JOA) scores, patients were divided into either the mild myelopathy (n=31) or severe myelopathy (n=19) group...
September 2016: Journal of Korean Neurosurgical Society
Mikinori Ikeda, Mitsuhiro Okada, Masahiko Toyama, Takuya Uemura, Kiyohito Takamatsu, Hiroaki Nakamura
This study correlated morphologic abnormalities of idiopathic carpal tunnel syndrome (CTS) with the severity of CTS using 3-T magnetic resonance imaging (MRI). The relationship of the severity of CTS and the cross-sectional area of the median nerve (CSA) was assessed at several levels. Seventy wrists of 35 patients (27 women and 8 men) with unilateral idiopathic CTS underwent nerve conduction study and 3-T MRI of the wrist. The CSA at 4 levels (distal radioulnar joint, body of scaphoid, tubercule of scaphoid, and hook of hamate) and the thickness of the transverse carpal ligament at 3 levels in both affected and unaffected hands were measured using 3-T MRI and correlated with the severity of CTS assessed with distal motor latency...
September 19, 2016: Orthopedics
F Mauch, B Drews
BACKGROUND: Magnetic resonance imaging (MRI) and computed tomography (CT) are established complementary tools for cross-sectional imaging in addition to standard x‑rays in orthopedics and traumatology. OBJECTIVE: Illustration of possible applications of MRI and CT in acute and chronic joint diseases. MATERIAL AND METHODS: Summary of the relevant literature with focus on the validity of MRI and CT in depicting joint trauma and pathologies...
October 2016: Der Unfallchirurg
Federico Giuseppe Usuelli, Riccardo D'Ambrosi, Camilla Maccario, Michele Boga, Laura de Girolamo
PURPOSE: Autologous Matrix-Induced Chondrogenesis (AMIC(®)) is known to provide satisfactory clinical results for the treatment of knee, hip, and ankle cartilage lesions. The purpose of this study was to evaluate clinical and radiological outcomes of patients treated with a new all-arthroscopic AMIC(®) (AT-AMIC(®)) technique with autologous bone graft for talar osteochondral defects at a follow-up of 24 months. METHODS: Twenty patients underwent the AT-AMIC(®) procedure and autologous bone graft for type III and IV talar osteochondral lesions...
September 12, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
J Li, C Ma, Y M Li, Z H Wang, M Zhao, J Feng, W X Dai
OBJECTIVE: To compare the preliminary clinical outcomes of fenestration discectomy associated with annulus repair (FDAR) and fenestration discectomy (FD) for lumbar disc herniation in the adolescents. METHODS: The data of 26 adolescent patients with single segment lumbar disc herniation who were admitted to the Department of Orthopedics, Xuzhou Central Hospital from October 2012 to October 2014 were retrospectively studied. All patients were divided into 2 groups, including 12 patients undergoing FDAR and 14 patients undergoing FD respectively...
August 23, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Nirav H Shelat, Georges Y El-Khoury
More children are participating in organized and recreational athletics at a younger age. It has been well documented that increased athletic specialization and year-round activities have resulted in higher incidences of overuse injuries, including stress fractures and stress reactions. Initially, stress fractures can be radiographically occult. Continued stress on the injured bone or cartilage can lead to progressive radiographic changes. Because of the prevalence of these injuries, both orthopedic surgeons and radiologists should be aware of the radiographic and magnetic resonance imaging (MRI) features of common stress fractures in children...
2016: Iowa Orthopaedic Journal
Florian Wanivenhaus, Florian M Buck, Michael Betz, Nadja A Farshad-Amacker, Mazda Farshad
BACKGROUND: Magnetic resonance imaging (MRI) is the diagnostic modality of choice in defining soft tissue compromise of the spinal canal. PURPOSE: To evaluate the reliability of postoperative MRI in the determination of level and side of lumbar spinal decompression surgery, investigated by two reviewers, in different levels of training and specialization. MATERIAL AND METHODS: Postoperative MR images of 86 patients who underwent spinal decompression (single level, n = 70; multilevel, n = 16; revision decompression, n = 9) were reviewed independently by an experienced musculoskeletal radiologist and a fourth-year orthopedic surgery resident...
August 11, 2016: Acta Radiologica
Sun Qizhi, Li Peijia, Sun Lei, Chen Junsheng, Li Jianmin
BACKGROUND: Noncontiguous cervical spondylotic myelopathy (CSM) is a special degenerative disease because of the intermediate normal level or levels between supra and infraabnormal levels. Some controversy exists over the optimal procedure for two noncontiguous levels of CSM. The study was to evaluate the outcomes of the anterior cervical discectomy and fusion (ACDF) with zero-profile devices for two noncontiguous levels of CSM. MATERIALS AND METHODS: 17 consecutive patients with two noncontiguous levels of CSM operated between December 2009 and August 2012 were included in the study...
July 2016: Indian Journal of Orthopaedics
Ahmed M Samy
BACKGROUND: Osteonecrosis of the femoral head (ONFH) is a debilitating disease in orthopedics, frequently progressing to femoral head collapse and osteoarthritis. It is thought to be a multifactorial disease. ONFH ultimately results in femoral head collapse in 75-85% of untreated patients. Total hip arthroplasty (THA) yields satisfactory results in the treatment of the end stage of the disease. However, disease typically affects males between the ages of 20 and 40 years and joint replacement is not the ideal option for younger patients...
July 2016: Indian Journal of Orthopaedics
Hernando Rafael
To demonstrate that amyotrophic lateral sclerosis (ALS) is not a neurodegenerative disease. The patient, a 33-year-old man began with symptoms of the bulbar form of ALS, characterized by burning pain in both feet during two months and then, he presented right crural monoparesis, fasciculations, slight dysarthria and he walked with help of orthopedic devices. A preoperative MRI scans showed atherosclerosis at the V4 segment of the left vertebral artery. On May 2012, he received an omental transplantation on the anterior, left lateral and posterior surface of the medulla oblongata...
2016: American Journal of Neurodegenerative Disease
Brittany J Carr, Sherman O Canapp, Debra A Canapp, Lauri-Jo Gamble, David L Dycus
OBJECTIVE: To describe clinical and diagnostic findings as well as management of adhesive capsulitis in dogs. BACKGROUND: Adhesive capsulitis, also known as frozen shoulder, is a syndrome defined by loss of range of motion of the shoulder and may be the end-stage manifestation of several primary conditions. EVIDENTIARY VALUE: This is a case series report of eight dogs with chronic forelimb lameness diagnosed with adhesive capsulitis. METHODS: Medical records (June 1, 2010-September 1, 2015) including, physical examination findings, radiographic findings, magnetic resonance imaging (MRI) findings, arthroscopy findings, and treatment plans were reviewed...
2016: Frontiers in Veterinary Science
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