Purpose: The main purpose of this study was to examine the functional characteristics of the anterior and posterior bands of the anterior bundle of the ulnar collateral ligament (UCL).
Methods: Six cadaveric elbows were tested using a digital tracking system to measure the strain in the anterior band and posterior band of the anterior bundle of the UCL throughout a flexion/extension arc. The specimens were then placed in an Instron materials testing machine and loaded to failure to determine yield load and ultimate load of the UCL.
Results: The posterior band showed a linear increase in strain with increasing degrees of elbow flexion while the anterior band showed minimal change in strain throughout. The bands showed similar strain at yield load and ultimate load, demonstrating similar intrinsic properties.
Conclusion: The anterior band of the anterior bundle of the UCL shows an isometric strain pattern through elbow range of motion, while the posterior band shows an increasing strain pattern in higher degrees of elbow flexion. Both bands show similar strain in a load to failure model, indicating insertion point, not intrinsic differences, of the bands determine the function of the anterior bundle of the UCL. This demonstrates a biomechanical rationale for UCL reconstructions using single point anatomical insertion points.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00167-014-3482-7 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Masquerading details behind a murmur and chest pain.
Turk J Emerg Med
January 2025
University of Antioquia, Hospital Universitario San Vicente Fundacion, Medellin, Colombia.
Masquerading bundle branch block (MBBB) is a rare presentation of bifascicular blocks. It is the result of a right bundle branch block associated with an advanced left anterior fascicular block due to extensive damage to the conduction system. We present the case of a 75-year-old male with late onset presentation anterior wall myocardial infarction (MI) with ongoing ischemia (which evolved into a ventricular septal defect [VSD]).
View Article and Find Full Text PDFHigh-risk electrocardiogram presentations in the acute coronary syndrome patient - Beyond ST-segment elevation myocardial infarction.
Turk J Emerg Med
January 2025
Department of Emergency Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA.
This review considers high-risk electrocardiographic patterns in the acute coronary syndrome (ACS) patient; we review 7 electrocardiogram presentations lacking diagnostic criteria for ST-segment elevation myocardial infarction (STEMI) yet likely representing either STEMI equivalent syndromes or ACS presentations with significant short-and long-term risk. The STEMI equivalent presentations include acute posterior wall myocardial infarction, the hyperacute T-wave of early STEMI, de Winter syndrome, first diagonal of the left anterior descending artery occlusion, and left bundle branch block modified Sgarbossa positive findings. High-risk presentation, not felt to be STEMI equivalent entities yet still possessing significant risk of short-and long-term adverse outcome, include lead aVR ST-segment elevation and Wellens syndrome.
View Article and Find Full Text PDFOlder cerebral small vessel disease and sleep disturbance: A diffusion tensor imaging study.
Sleep Med
January 2025
Department of Neurology, Second Hospital of Tianjin Medical University, Tianjin, 300211, China. Electronic address:
Objective: This study examined the relationship between diffusion tensor imaging indicators and brain network characteristics in patients with cerebral small vessel disease (CSVD) with (CSVD + S) and without (CSVD-S) sleep disturbance. We explored the feasibility of using these imaging biomarkers to investigate the pathophysiological mechanisms underlying sleep disturbance in patients with CSVD.
Methods: A total of 146 patients with CSVD and 84 healthy controls were included.
Use of Preoperative Spinal Angiography in Severe Spinal Deformity Patients Who Require Thoracic 3 Column Osteotomy: A Case Series and Review of the Literature.
Oper Neurosurg (Hagerstown)
January 2025
Department of Neurosurgery, NYU Langone Health, New York, New York, USA.
Background And Objectives: Three-column osteotomy (3CO) offers substantial spinal deformity correction. Thoracic neurovascular bundle sacrifice is often required, and anterior spinal artery (ASA) perfusion can be compromised. Spinal angiography allows localization of variable ASA vascular contribution.
View Article and Find Full Text PDFRadiological safety atlas of minimally invasive midfoot fusion: A cadaver study.
Foot Ankle Surg
January 2025
Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA, United States.
Purpose: The popularity of minimally invasive (MIS) foot surgery continues to grow. However, it comes with certain limitations that present notable challenges. One significant hurdle is the absence of direct visualization of neurovascular structures and tendons.
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!