The extensor mechanism of the knee is essential to ambulation and is subject to a number of traumatic, congenital, and inflammatory processes. In the pediatric population, the spectrum of pathologic conditions affecting the extensor mechanism is specific to skeletally immature patients. In addition, certain congenital and developmental disorders may further predispose the knee extensor mechanism to injury. The pathologic processes can be subdivided into categories: conditions of the attachments and insertions of the quadriceps and patellar tendons, conditions of the patella, conditions of the quadriceps muscle group, and avulsions of the superior attachments of the quadriceps. Cases of conditions affecting the extensor mechanism of the pediatric knee were collected at two large trauma centers, and the clinical and radiologic features were reviewed. Initial evaluation of these conditions is performed with radiography, but magnetic resonance imaging has evolved into a useful adjunct for assessing the soft tissues for a more precise evaluation of the true extent of an injury, thereby affecting decisions about surgical intervention and prognosis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1148/rg.293085163 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Revision quadriceps tendon repair: A case series and technique guide to a novel repair.
Trauma Case Rep
February 2025
Department of Orthopaedic Surgery and Sports Medicine, University at Buffalo, Jacobs School of Medicine and Biomedical Sciences, Buffalo, NY 14203, United States of America.
Introduction: Revision quadriceps tendon repair is a challenging problem. In this four-case series, novel quadriceps tendon revision resulted in improved range of motion and durable repair for patients with recurrent rupture.
Methods: Our technique includes a combination of a running locked #5 FiberWire or 2 mm SutureTape suture placed through parallel medial, lateral, and central drill holes in the patella with running Krackow-type quadriceps tendon repair medially and laterally resulting in four strands, delivering the vastus medialis and medial quadriceps tendon to an anatomic repair at the superior pole of the patella, with 2 sutures passed centrally and 1 each passed medially and laterally and then tied.
Effect of individual spinal muscle activities on upright posture using a human body finite element model.
Sci Rep
January 2025
Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, 4-3, Kozunomori, Narita, Chiba, 286-8686, Japan.
The occurrence of diseases characterized by irregular spinal alignment, such as kyphosis, lordosis, scoliosis, and dropped head syndrome (DHS) is increasing, particularly among older adults. DHS is characterized by an excessive forward tilt of the head and neck, causing the head to droop. Although it is believed that muscle activity plays a role in both the onset and treatment of DHS, the underlying mechanisms remain unclear.
View Article and Find Full Text PDFAcute Extensor Pollicis Longus Tendon Injury Associated with a Distal Radius Fracture: A Case Report.
Am J Case Rep
January 2025
Department of Orthopaedics, Juntendo University Faculty of Medicine, Tokyo, Japan.
BACKGROUND Extensor pollicis longus (EPL) tendon rupture is a potential complication following distal radius fracture, typically occurring several weeks after injury. Herein, we present a rare case of acute extensor pollicis longus tendon rupture associated with a distal radius fracture. CASE REPORT A 35-year-old woman visited our hospital with a distal radius fracture.
View Article and Find Full Text PDFBiomechanics Parameters of Gait Analysis to Characterize Parkinson's Disease: A Scoping Review.
Sensors (Basel)
January 2025
Department of Electrical Engineering and Information Technology, University of Naples Federico II, 80125 Naples, Italy.
Parkinson's disease (PD) is characterized by a slow, short-stepping, shuffling gait pattern caused by a combination of motor control limitations due to a reduction in dopaminergic neurons. Gait disorders are indicators of global health, cognitive status, and risk of falls and increase with disease progression. Therefore, the use of quantitative information on the gait mechanisms of PD patients is a promising approach, particularly for monitoring gait disorders and potentially informing therapeutic interventions, though it is not yet a well-established tool for early diagnosis or direct assessment of disease progression.
View Article and Find Full Text PDFOlder Fallers' Comprehensive Neuromuscular and Kinematic Alterations in Reactive Balance Control: Indicators of Balance Decline or Compensation? A Pilot Study.
Bioengineering (Basel)
January 2025
Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR 999077, China.
: Falls and fall consequences in older adults are global health issues. Previous studies have compared postural sways or stepping strategies between older adults with and without fall histories to identify factors associated with falls. However, more in-depth neuromuscular/kinematic mechanisms have remained unclear.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!