scholarly journals Models of injury and osteoarthritis: the role of impact severity and joint instability

2016 ◽  
Vol 24 ◽  
pp. S410 ◽  
Author(s):  
C. Blaker ◽  
C.B. Little ◽  
S.M. Smith ◽  
E.C. Clarke
Keyword(s):  
Joint Instability ◽  
Models Of Injury

scholarly journals Role of Magnetic Resonance Imaging in Study of the Patellofemoral Joint Morphological Abnormalities Predisposing to Patellar Instability

2021 ◽  
Vol 6 (2) ◽  
pp. 208-215
Author(s):  
H.P Parekh ◽  
S Aravind Prasad Naik
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Patellofemoral Joint ◽  
Joint Instability ◽  
Medial Patellofemoral Ligament ◽  
Age Distribution ◽  
Patellofemoral Instability ◽  
Resonance Imaging

Objectives: The Patellofemoral joint (PFJ) is a complex joint structure with high functional and biomechanical requirements. The purpose of this study is to evaluate cause of patella-femoral joint instability with in-depth evaluation of influence of anatomical risk factors (AF), measurements and anatomical relationships of the patellofemoral joint and various pathologies causing medial patellofemoral ligament (MPFL) injury that contributes to the patellar maltracking using 1.5 Tesla magnetic resonance imaging. Materials and Methods: The present prospective study is carried out at department of radiology, shri M P Shah Medical College, Jamnagar. This is study of total 50 patients carried out in 12-month duration from July 2019 to June 2020, in which 50 patients aged between 8 - 68 years selected as study group presented with complaint symptoms of patellofemoral instability, knee pain and maltracking were examined and identified by an orthopaedic surgeon. Patients with the clinical suspicion of a PFJ maltracking were selected for subsequent MRI examination. Results: The age distribution in our study was in range of 8 years to 68 years with maximum population within 31 to 40 years range, 66 % were male and 34 % female. Their trochlear depth, sulcal angle, trochlear facet asymmetry, lateral inclination angle was found abnormal in 18 cases (36%), 8 (16%) showed patellar alta and 7 (14%) patella baja. Lateralization of patella (> 6 mm) was noted in 18 patients (36%), Medial patellofemoral ligament injuries were seen in 16 (32%) patients on MRI and kissing contusion 10 (20%) patients. A detailed understanding of the anatomy and pathology of the anterior knee compartment is essential for proper imaging interpretation and treatment management. Conclusion: Magnetic resonance (MR) imaging has been established as the method of choice, showing high accuracy in patellofemoral joint abnormalities. The present study aims to explore the role of MR imaging in diagnosing the various disorders located in anterior compartment of knee. Keywords: Joint instability, Patellofemoral joint, MPFL, MR imaging/diagnosis.

Down but Not Out: Athlete Responses to Season-Ending Injuries

1997 ◽  
Vol 19 (3) ◽  
pp. 229-248 ◽  
Author(s):  
Eileen Udry ◽  
Daniel Gould ◽  
Dana Bridges ◽  
Laurie Beck
Keyword(s):  
Personal Growth ◽  
Relevant Information ◽  
Athletic Injury ◽  
Raw Data ◽  
Injury Rehabilitation ◽  
Models Of Injury ◽  
Injury Recovery ◽  
Positive Outlook

This investigation sought to extend the existing scientific literature regarding the role of psychological processes in athletic injury rehabilitation. Specifically, the study examined (a) psychological responses of injured athletes to season-ending injuries, and (b) long-term benefits athletes perceived they obtained from their injuries. In-depth interviews were conducted with US Ski Team athletes (N = 21) who experienced injuries during racing seasons from 1990 to 1994. The data were analyzed using the content analysis procedures described by Scanlan, Stein, and Ravizza (1989). Relative to athletes’ reactions to being injured, 136 raw data themes were extracted which coalesced into 4 general dimensions: (a) injury-relevant information processing/awareness, (b) emotional upheaval/reactive behavior, (c) positive outlook/coping attempts, and (d) other. With respect to injury benefits, 81 raw data themes emerged and formed 4 dimensions: (a) personal growth, (b) psychologically- based performance enhancements, (c) physical-technical development, and (d) none. The results are discussed in relation to existing models of injury recovery and stress.

MORFOLOGIChESKAYa KhARAKTERISTIKA PEREDNEY KRESTOOBRAZNOY SVYaZKI KOLENNOGO SUSTAVA PRI EE POVREZhDENII (EKSPERIMENTAL'NOE ISSLEDOVANIE)

2003 ◽  
Vol 10 (1) ◽  
pp. 54-59
Author(s):  
M M Taylashev ◽  
V V Benemanskiy
Keyword(s):  
Joint Instability ◽  
Critical Role ◽  
Rabbit Model ◽  
Chronic Phase ◽  
Collagen Fibers ◽  
Knee Stability ◽  
Post Injury ◽  
Acl Injuries ◽  
Acute Period

The changes in ACL after its detachment from the external femur condylar were studied in a rabbit model. It was shown that changes were of phase nature, ligament stumps with wound contraction gradually retracted and atrophied by 45 post-injury day. In isolated ACL injuries with developed joint instability menisci are easily damaged. That confirmed the critical role of ACL in provision of knee stability and testified the necessity of early ligament suturing. Posttraumatic hemosynovitis spontaneously stopped during the first 2 weeks (acute period). Morphologically that period showed marked fibroplastic process that signified the transition of acute period to subacute one (within 2 following weeks). Four weeks after injury the process got into chronic phase with morphologic picture of marked destruction and degeneration of collagen fibers of ACL stump.

scholarly journals Role of MRI Arthrography Compared to Conventional MRI in Assessment of Shoulder Joint Disorders

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
M A Nassef ◽  
S A A Abdulrahim ◽  
D A A M Eldesouki
Keyword(s):  
Joint Instability ◽  
Glenohumeral Joint ◽  
Imaging Technique ◽  
Mr Arthrography ◽  
Contrast Injection ◽  
Ct Guided ◽  
Ct Arthrography ◽  
Glenoid Labrum ◽  
Conventional Mri

Abstract Glenohumeral joint instability is extremely common. With regard to primary anterior shoulder dislocations, the incidence is between 8.2 and 23.9 per 100 000 person-years, with an estimated prevalence of 1.7%. Many imaging methods, including arthrography, CT arthrography, MR arthrography, have been used to image the glenoid labrum and the associated structures of the capsular mechanism. The aim of the study is to prove MR arthrography is the preferred imaging technique for the investigation of patients with shoulder instability. MR arthrography reliably shows subtle lesions of the labroligamentous complex, providing information essential to the surgeon concerning the surgery or arthroscopic repair .Thirty Patients with clinically evident or suspected shoulder impingemint or glenohumeral instability.of both sexes were included , conventional MRI was performed for all patients followed by CT guided intraarticular contrast injection then MRI Arthrography images taken within thirty minutes. Data were collected, revised, coded and entered to the Statistical Package for Social Science (IBM SPSS) version 20.

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor
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