Mechanical Properties of the Lateral Collateral Ligament: Effect of Cruciate Instability in the Rabbit

1988 ◽  
Vol 110 (3) ◽  
pp. 208-212 ◽  
Author(s):  
P. A. Tozilli ◽  
S. P. Arnoczky

Concomitant soft tissue injury resulting from knee instability following cruciate rupture is a serious clinical problem. To study this injury mechanism, the biomechanical properties of the lateral collateral ligament were measured at 0, 4, 8, 12, and 16 weeks post-operatively in rabbits having the anterior and posterior cruciate ligaments sectioned. No significant changes were found in the ligament’s cross-sectional area, tensile mechanical response, or in its hexosamine content. The predominant mode of ligament failure was by bone avulsion at the insertion sites (78 percent) with 86 percent of paired limbs failing in a similar manner.

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Mahmoud Mustafa Mohamed Kamal Eldin ◽  
Hana HamdyNasef ◽  
Mennatallah Hatem Shalaby

Abstract Background Knee pain incidence is increasing among the community which has different multiple pathologies. Magnetic Resonance Imaging (MRI) is considered the gold standard imaging modality in diagnosing knee soft tissue injury. Ultrasound (US) is another modality which can be used in diagnosing soft tissue injury. Aim of the Work is to detect the reliability of US in diagnosing cases with knee pain as compared to MRI. Patients and Methods A prospective study was conducted on 20 patients with knee pain. They were referred from the Orthopedic and/or Rheumatology Department to Radiology department at Ain Shams University hospitals for MRI and US examination of the knee.The age group were from 19 to 59 years. Results In this study, 20 patients were examined with majority being males (75%). US was tested against MRI for different soft tissue pathologies.including knee effusion, meniscal pathology (tear, degeneration and extrusion), medial collateral ligament sprain, lateral collateral ligament sprain and Baker’s cyst. There was good agreement between US and MRI in most of these pathologies. US showed an overall sensitivity of 61.7% and specificity of 92.7% with accuracy of 86.9%. The overall PPV and NPV were 66.1% and 91.3% respectively. Conclusion Ultrasound can be considered a reliable screening imaging modality in cases of knee pain.


1992 ◽  
Vol 05 (04) ◽  
pp. 158-162 ◽  
Author(s):  
D. Blackketter ◽  
J Harari ◽  
J. Dupuis

Bone/lateral collateral ligament/bone preparations were tested and structural mechanical properties compared to properties of cranial cruciate ligament in 15 dogs. The lateral collateral ligament has sufficient stiffness to provide stifle joint stability and strength to resist acute overload following fibular head transposition.


2017 ◽  
Vol 33 (3) ◽  
pp. 200-207 ◽  
Author(s):  
Crystal C. Wang ◽  
Kadine L. Linden ◽  
Hansel J. Otero

Fractures and suspected fractures are common causes for pediatric visits to the emergency department. Initial evaluation routinely includes imaging in the form of radiographs. Additional imaging modalities including sonography and magnetic resonance are used as problem-solving tools. Sonography has been reported to perform well when compared with radiography in multiple anatomies from the skull and nasal bones to the upper and lower extremities. In addition, sonography presents unique advantages including lack of ionizing radiation, cross-sectional coverage, evaluation of soft tissue injury, and the possibility of imaging the contralateral side. This article reviews the applications, advantages, disadvantages, technique, and performance of sonography in the imaging of fractures in children.


2016 ◽  
Vol 11 (1) ◽  
pp. 21-24
Author(s):  
Shafiul Alam ◽  
Rabiul Alam ◽  
Manirul Islam ◽  
Amin Salek

AbstractBackgroundRana Plaza building collapse is the worst industrial disaster of Bangladesh so far. The 9-storied structure collapsed suddenly on April 24, 2013, with more than 4000 people inside. Bangladesh Armed Forces played a key role in the massive rescue operations.MethodsWe conducted a cross-sectional study with 423 victims who were treated at a Combined Military Hospital to review the pattern of injuries and management provided.ResultsMiddle-aged (35±12.75 years) females (68.32%) were the majority of the victims. Among the injured, 42.35% had soft tissue injury, 22.55% had abrasions, 18.79% had fractures, 3.75% had facial injuries, and 2.5% each had head and abdominal injuries. We treated the injured with various surgical approaches, such as soft tissue debridement (38.84%), fasciotomy (18.79%), amputation (3.75%), and other procedures. We had to refer 8.27% of the patients to different advanced centers. The mortality rate was 5.91%, including 1 volunteer rescuer.ConclusionPattern of injuries and modalities of management needed in an industrial disaster is a valuable experience which can be utilized in preparing to face disasters in the future and beyond. Death of a voluntary rescuer once again warrants the necessity of using a helmet and safety gear during any rescue operation. (Disaster Med Public Health Preparedness. 2017;11:21–24)


2017 ◽  
Vol 13 (1) ◽  
pp. 77-85
Author(s):  
Bijendra Kumar Rai ◽  
R Chaudhari ◽  
A Yadav ◽  
B Rai

Background: The Senior or elderly population is rapidly growing in Nepal. They sustain injuries fall frequently which is mostly unintentional and occurs either inside or outside of house. The cost of treatment is high. The most effective fall prevention strategies are multifactorial interventions targeting identified risk factors, exercises for muscle strengthening combined with balance training and withdrawal of psychotropic medication.  Objective: To study the pattern and associated rule factors of fall injuries among elderly patients from frequenting in the emergency.Method: It is an observational cross sectional study of fall in senior people presenting in emergency ward using a semi-structured questionnaire.Result: Male and female subjects were 76 (54.3%) and 64 (45.7%) respectively. Among 140 patients, 115 (82.1%) were living with families and 25 (17.9%) were living alone. Fifty six (40%) patients sustained injuries in early morning, fifty-two (37.1%) in late evening and thirty two (22.9%) in the afternoon. Seventy-three percent subjects fell outside and 26.40% fell inside house. Sixty-five (53.6%) patients were suffering from chronic diseases. Fifty-seven (40.7%) patients were suffering from visual impairment. Fourty-seven (33.6%) patients had multiple joints problem, 20% subjects were anaemic. Hypoglyceaemia was present in fifteen (10.7%) subject. Eighteen (12.9%) subjects had a history of fall in past. Eighteen (12.9%) subject had head injury. Twelve (8.6%) subjects had chest injury. Three (2.1%) subjects had abdominal injury and 24 (17.1%) spinal injury. Seventy-three (52.1%) subjects had fracture, 30 (21.4%) had soft tissue injury, 48 (34.3%) external injury and 11 (7.9%) eye most common injury found in elderly patients in this set up. Mosy of the fall injury injuries. Of all 82 (30.7%) patients were admitted in hospital.Conclusion: Fracture of bone was the occurred outside home. Most of the patients required admission in the hospital for treatment.Health Renaissance 2015;13 (1): 


2018 ◽  
Vol 23 (4) ◽  
Author(s):  
Anna Szufnara ◽  
Małgorzata Lipczyńska-Lewandowska ◽  
Sylwia Majewska-Beśka ◽  
Joanna Szczepańska

Introduction. Tooth injuries constitute a serious clinical problem in contemporary paediatric dentistry. Immediately delivered and correct first aid is particularly important in the case of dental trauma. Aim. The aim of the study was to assess the general knowledge of teachers and medical professionals on providing first aid to children in the case of dental trauma. Taking part in a first aid training course was also analysed. Material and methods. An anonymous, voluntary questionnaire was administered to 727 people. It was conducted in January and February 2017 in three Polish provinces. The respondents were divided into groups depending on their age, sex, educational level, number of children and profession related to medicine or school education. Behavioural patterns were analysed in the event of a complete tooth dislocation or crown fracture. Results. According to the study, 577 respondents (79.4%) have participated in a first aid training course at least once. Every third person: 223 (32%) has been a witness of a tooth injury. The most frequent type of encountered trauma was soft tissue injury and tooth crown fracture: 114 (35%) and 96 (29%) cases, respectively. The professionals who tried to provide first aid in dental trauma at a similar percentage were teachers: 56% of cases and people associated with medicine: 53%; the remaining professionals did so in 36% of cases. Conclusions. The issue of first aid in dental trauma is rarely raised during first aid training courses. Despite this, every second person participating in the study has tried to provide first aid. However, their actions were incorrect in most cases.


HAND ◽  
1980 ◽  
Vol os-12 (3) ◽  
pp. 225-230 ◽  
Author(s):  
M. A. Smith

Acute ulnar instability of the metacarpophalangeal joint of the thumb is divided into two distinct groups, according to the history, clinical, radiological and operative findings. In the first group it is a soft tissue injury, as a result of an unresisted abduction force to the thumb. In the second group, following a resisted abduction force, there is avulsion of a bony fragment from the base of the proximal phalanx, which is the site of common insertion of both the ulnar collateral ligament and the adductor pollicis. This is confirmed by post-mortem studies.


2019 ◽  
Author(s):  
Stephanie G. Cone ◽  
Hope E. Piercy ◽  
Emily P. Lambeth ◽  
Hongyu Ru ◽  
Jorge A. Piedrahita ◽  
...  

AbstractPrior studies have analyzed growth of musculoskeletal tissues between species or across body segments; however, little research has assessed the differences in similar tissues within a single joint. Here we studied changes in the length and cross-sectional area of four ligaments and tendons, (anterior cruciate ligament, patellar tendon, medial collateral ligament, lateral collateral ligament) in the tibiofemoral joint of female Yorkshire pigs through high-field magnetic resonance imaging throughout growth. Tissue lengths increased by 4-to 5-fold from birth to late adolescence across the tissues while tissue cross-sectional area increased by 10-20-fold. The anterior cruciate ligament and lateral collateral ligament showed allometric growth favoring change in length over change in cross-sectional area while the patellar tendon and medial collateral ligament grow in an isometric manner. Additionally, changes in the length and cross-sectional area of the anterior cruciate ligament did not increase as much as in the other ligaments and tendon of interest. Overall, these findings suggest that musculoskeletal soft tissue morphometry can vary within tissues of similar structure and within a single joint during post-natal growth.


1987 ◽  
Vol 148 (2) ◽  
pp. 458-458 ◽  
Author(s):  
DR Pennes ◽  
WA Phillips

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