Magnetic Resonance Imaging in the Diagnosis of Disruption of the Posterior Tibial Tendon

Foot & Ankle ◽  
1987 ◽  
Vol 8 (3) ◽  
pp. 144-147 ◽  
Author(s):  
Ian J. Alexander ◽  
Kenneth A. Johnson ◽  
Thomas H. Berquist
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissues ◽  
Diagnostic Technique ◽  
Clinical Findings ◽  
The Body ◽  
Posterior Tibial Tendon ◽  
Resonance Imaging ◽  
Posterior Tibial ◽  
Magnetic Resonance Imaging Mri

Magnetic resonance imaging (MRI), a useful technique of studying soft tissues of the body, can be very effective in assessing the integrity of tendons. Usually a patient with a complete tear of the posterior tibial tendon has characteristic physical findings. In the patient presented, MRI demonstrated a complete disruption of the posterior tibial tendon, despite the absence of the commonly associated clinical findings. In view of the difficulties encountered with attempted tenography of the completely torn posterior tibial tendon, MRI provides a sensitive alternative diagnostic technique.

Clinical Significance of Magnetic Resonance Imaging in Preoperative Planning for Reconstruction of Posterior Tibial Tendon Ruptures

Foot & Ankle ◽  
1992 ◽  
Vol 13 (4) ◽  
pp. 208-214 ◽  
Author(s):  
Stephen Conti ◽  
James Michelson ◽  
Melvin Jahss
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Success ◽  
Magnetic Resonance Images ◽  
Posterior Tibial Tendon ◽  
Resonance Imaging ◽  
Posterior Tibial ◽  
Surgical Evaluation ◽  
Tendon Ruptures ◽  
Magnetic Resonance Imaging Mri

A retrospective study of attenuated/ruptured posterior tibial tendons was conducted of all patients who underwent tendon reconstruction over a 4-year period. The study comprised 20 feet in 19 patients having an average age of 53.3 years, with an average follow-up of 2 years. Preoperative magnetic resonance images were taken and graded for assignment to one of three magnetic resonance imaging (MRI)-based groups. The surgical grade was determined intraoperatively based on a previously described classification scheme. No medical or rheumatologic conditions predisposing to failure could be identified. Failure was defined as postoperative progression of pain and deformity which required subsequent triple arthrodesis. There were six failures at an average of 14.7 months. Surgical evaluation was not correlated to outcome following reconstruction. MRI grading, however, was predictive of outcome. The superior sensitivity of MRI for detecting intramural degeneration in the posterior tibial tendon that was not obvious at surgery may explain why MRI is better than intraoperative tendon inspection for predicting the outcome of reconstructive surgery. Therefore, it may be helpful to obtain preoperative MRI when this particular reconstruction of the posterior tibial tendon is contemplated, since this provides the best measure of tendon integrity and appears to be the best predictor of clinical success after such surgery.

Foot and ankle functions and deformities focus on posterior tibial tendon dysfunction using magnetic resonance imaging in patients with rheumatoid arthritis

2021 ◽  
Author(s):  
Takeshi Mochizuki ◽  
Yuki Nasu ◽  
Koichiro Yano ◽  
Katsunori Ikari ◽  
Ryo Hiroshima ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pitch Angle ◽  
Posterior Tibial Tendon ◽  
Foot And Ankle ◽  
Resonance Imaging ◽  
Posterior Tibial Tendon Dysfunction ◽  
First Metatarsal ◽  
Posterior Tibial ◽  
Metatarsal Angle

ABSTRACT Objectives Posterior tibial tendon dysfunction (PTTD) affects the support of the medial longitudinal arch and stability of the hindfoot. The purpose of this study was to assess the relationships of PTTD with foot and ankle functions and foot deformities in patients with rheumatoid arthritis (RA). Methods A total of 129 patients (258 feet) who underwent magnetic plain and contrast-enhanced magnetic resonance imaging were enrolled in this study. Positive magnetic resonance imaging findings were defined as tenosynovitis and incomplete and complete rupture of the posterior tibial tendon. Foot and ankle functions were assessed using the Japanese Society for Surgery of the Foot standard rating system for the RA foot and ankle scale (JSSF-RA) and self-administered foot evaluation questionnaire. Plain radiographs were examined for the hallux valgus angle, first metatarsal and second metatarsal angle, lateral talo-first metatarsal angle, and calcaneal pitch angle. Results PTTD was associated with motion in the JSSF-RA (p = .024), activities of daily living in JSSF-RA (p = .017), and pain and pain-related factors in the self-administered foot evaluation questionnaire (p = .001). The calcaneal pitch angle was significantly lower in the feet with PTTD than in those without PTTD (median: 16.2° vs. 18.0°; p = .007). Conclusions The present study shows that PTTD was associated with foot and ankle functions and flatfoot deformity. Thus, a better understanding of PTTD in patients with RA is important for the management of foot and ankle disorders in clinical practice.

Ultrasound in the Diagnosis of Posterior Tibial Tendon Pathology

1996 ◽  
Vol 17 (9) ◽  
pp. 555-558 ◽  
Author(s):  
Stuart D. Miller ◽  
Marnix Van Holsbeeck ◽  
Peter M. Boruta ◽  
Kent K. Wu ◽  
David A. Katcherian
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Diagnostic Tool ◽  
Surgical Planning ◽  
Posterior Tibial Tendon ◽  
Resonance Imaging ◽  
Posterior Tibial ◽  
Partial Tears ◽  
Tendon Pathology

We retrospectively evaluated the effectiveness of ultrasonography as a diagnostic tool for investigating pathology in the posterior tibial tendon by comparing the preoperative ultrasonograms for 17 patients with their recorded surgical findings. In all cases, the surgical findings confirmed the ultrasonographic diagnoses: 3 inflammations, 4 partial tears, and 10 ruptures. Interestingly, two ruptures had been undiagnosed by magnetic resonance imaging. Ultrasonography, which seems to be a reliable means of visualizing the extent of pathology of the symptomatic posterior tibial tendon, may be a valuable tool in surgical planning.

Posterior tibial tendon dysfunction: Clinical and magnetic resonance imaging findings having histological features of PTTD

2017 ◽  
Vol 23 ◽  
pp. 87-88
Author(s):  
N. Martinelli ◽  
D. Albano ◽  
C. Bonifacino ◽  
E. Sartorelli ◽  
G. Romeo ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Posterior Tibial Tendon ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Posterior Tibial Tendon Dysfunction ◽  
Histological Features ◽  
Posterior Tibial

scholarly journals Incidental Findings in Magnetic Resonance Imaging (MRI) Brain Research

2008 ◽  
Vol 36 (2) ◽  
pp. 315-319 ◽  
Author(s):  
Charles A. Nelson
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Incidental Findings ◽  
Brain Research ◽  
The Body ◽  
7 Tesla ◽  
X Rays ◽  
Resonance Imaging ◽  
Imaging Tool ◽  
Magnetic Resonance Imaging Mri

Magnetic resonance imaging (MRI) is a noninvasive imaging tool that utilizes a strong magnetic field and radio frequency waves to visualize in great detail organs, soft tissue, and bone. Unlike conventional x-rays (including computed tomography [CT]), there is no exposure to ionizing radiation and at most field strengths (generally below 7 Tesla) the procedure is considered safe for nearly every age group. Because it is non-invasive (i.e., does not break the skin or harm the body) and possesses excellent spatial resolution (down to millimeters), the use of MRI as a research tool has increased exponentially over the past decade. Uses have ranged from add-ons to a clinical study (e.g., after scanning a child who has fallen from a bicycle, the radiologist might do an extra sequence to explore ways of obtaining higher resolution images) to studies of brain development in typically developing children. In addition, a major effort has been made in recent years to use MRI to study brain function (so-called “functional MRI” [fMRI]). Because the clinical utility of fMRI has not yet been realized, fMRI is still considered highly exploratory, and we cannot yet identify incidental findings of a functional (as opposed to structural) nature.

Boron-gadolinium binary system as a magnetic resonance imaging boron carrier

2003 ◽  
Vol 75 (9) ◽  
pp. 1343-1348 ◽  
Author(s):  
Yoshinori Yamamoto
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Binary System ◽  
The Body ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

The evaluation of the Gd-carborane DTPA complex as a magnetic resonance imaging (MRI) and boron carrier agent was carried out in vivo. The MRI revealed that the Gd-carborane DTPA was metabolized slower in the body in comparison with Gd-DTPA.

scholarly journals Comparison of radiography and magnetic resonance imaging in the diagnosis of hand osteoarthritis

2019 ◽  
Vol 57 (1) ◽  
pp. 91-99 ◽  
Author(s):  
D. M. Kudinsky ◽  
A. V. Smirnov ◽  
L. I. Alekseeva
Keyword(s):  
Magnetic Resonance Imaging ◽  
Articular Cartilage ◽  
Magnetic Resonance ◽  
Bone Marrow Edema ◽  
Soft Tissues ◽  
Joint Space ◽  
Hand Osteoarthritis ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

The article discusses the possibilities and search for the optimal concept of diagnosis of hand osteoarthritis (OA). The data of numerous studies with focus on the comparison of sensitivity and specificity of the main techniques in this type of pathology – standard radiography and magnetic resonance imaging (MRI) are presented. Determination of the earliest symptoms of OA allows to predict the development of the disease and begin its therapy. The joint space narrowing due to the loss of articular cartilage is the earliest radiological symptom of OA, which is observed in the advanced stage of the disease. MRI, unlike radiography, makes it possible to visualize the articular cartilage, fluid in the joint cavity, bone marrow edema and soft tissues, but it is more expensive and time-consuming method. At present the main difficulty lies in the absence of a standardized system for assessing the MRI hand OA manifestations, as well as insufficient number of investigations in this area.

scholarly journals Upper Airway Changes following Functional Treatment with the Headgear Herbst or Headgear Twin Block Appliance Assessed on Lateral Cephalograms and Magnetic Resonance Imaging

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Min Gu ◽  
Fabio Savoldi ◽  
Urban Hägg ◽  
Colman P. J. McGrath ◽  
Ricky W. K. Wong ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissues ◽  
Upper Airway ◽  
Functional Treatment ◽  
Resonance Imaging ◽  
Twin Block ◽  
Lateral Cephalograms ◽  
Magnetic Resonance Imaging Mri ◽  
Airway Dimensions

Objective. The present study compared the changes in the upper airway dimensions and sleep-related breathing disorder (SRBD) condition between functional treatment with the headgear Herbst (HG-Herbst) and headgear Twin Block (HG-TB) appliance. Soft tissues were assessed on lateral cephalometric X-ray and magnetic resonance imaging (MRI). Materials and Methods. Consecutive patients who sought orthodontic treatment at the Faculty of Dentistry of The University of Hong Kong were screened. Adolescents (12-17 year sold for boys and 10-15 years old for girls), with class II molar relationship and overjet >5 mm, with no severe transverse maxillary deficiency, were recruited. Patients were assigned either to the HG-Herbst or to the HG-TB treatment by stratified block randomisation, with sex as the stratification factor. Lateral cephalograms, magnetic resonance imaging (MRI), and the Paediatric Sleep Questionnaire (PSQ) were obtained at baseline and after treatment. Results. 28 patients were enrolled, and 26 patients (13 in each group) completed the treatment. Following 1 year of functional appliance treatment, a significantly lower increase of the lower anterior facial height was observed in the HG-Herbst group compared to the HG-TB group (p = 0.024). However, no significant differences were observed in the upper airway structures or SRBD between the two groups. Conclusion. The changes in upper airway dimensions and SRBD condition were not significantly different between the HG-Herbst and the HG-TB appliance treatment. Additional studies with larger sample size are warranted.

How is magnetic resonance imaging used in Iran?

2008 ◽  
Vol 24 (04) ◽  
pp. 452-458 ◽  
Author(s):  
Mohammad Palesh ◽  
Sten Fredrikson ◽  
Hamidreza Jamshidi ◽  
Goran Tomson ◽  
Max Petzold
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Low Income ◽  
Spinal Column ◽  
The Body ◽  
Low Income Countries ◽  
Resonance Imaging ◽  
Utilization Patterns ◽  
Magnetic Resonance Imaging Mri ◽  
Almost All

Objectives:Analysis of and understanding the utilization patterns of diagnostic imaging technologies is important for planning health systems especially in middle- and low-income countries. Almost all published studies have been focused on utilization trends or utilization rates of magnetic resonance imaging (MRI) over time and little has been published about utilization patterns of MRI. This study aims to identify and describe the utilization pattern of MRI in Iran.Methods:Data was collected from referrals and MRI reports of the population covered by one of the largest insurance organizations (Social Security Organization [SSO]) with more than 27 million beneficiaries in the Country. We focused on patients who had undergone an MRI examination during 1 month (October 13 to November 12), 2005. The data collected consisted of 1,656 referrals for MR imaging and 1,547 MRI reports.Results:No clear association was found between the number of referrals per 100,000 population and the number of MRI machines per 100,000 population (r = 0.30;p= .13). Neurosurgeons, orthopedists, and neurologists contributed to more than 88 percent of MRI utilization. The Spinal column (55 percent), brain (25.5 percent), and knee (11.0 percent) were the most common parts of the body scanned by MRI.Conclusions:Having identified some of the most frequent users of MRI technology, any plan for modifying or improving MRI use should focus mainly on these specialties. International evidence on using the technology for examining brain and spine indicate that MRI is mainly used in diagnosing the central nervous system (CNS) diseases.

Magnetic resonance imaging in gynecological practice

1997 ◽  
Vol 78 (6) ◽  
pp. 439-441
Author(s):  
A. T. Valiullina ◽  
L. M. Tukhvatullina ◽  
R. F. Bakhtiozin ◽  
I. R. Chuvashaev
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissues ◽  
Dynamic Control ◽  
Anatomical Structure ◽  
Resonance Imaging ◽  
Noninvasive Diagnostics ◽  
Tissue Contrast ◽  
Magnetic Resonance Imaging Mri ◽  
Natural Tissue

Magnetic resonance imaging (MRI) has become one of the leading methods of noninvasive diagnostics in the last 10 years. Interest in this type of examination is due to its great potential possibilities: absence of radiation exposure, high natural tissue contrast, obtaining sections of any orientation, possibility of multiple examination and dynamic control, determining not only the anatomical structure of soft tissues, but also their chemical composition.

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