Knee Stability
Knee Stability - Related Videos
12:01
Knee Exam
0 Views •
2023
Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA The knee is a hinged joint that connects the femur with the tibia. It is the largest joint in the body, and due to its location in the middle of the lower leg, it is subjected to a variety of traumatic and degenerative forces. Examination of the knee can be quite complex, owing to the fact it is an inherently unstable joint held together by various ligaments and supported by menisci, which act as shock absorbers and...
03:18
Nuclear Stability
0 Views •
2020
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters. To hold positively charged protons together in the...
01:53
RNA Stability
0 Views •
2019
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
04:22
Assessment of Knee Hyperalgesia in Mice using Pressure Application Measurement
0 Views •
Cited by 2 •
2025
The protocol describes how to measure knee hyperalgesia in mice. We show examples in mouse models of acute knee pain as well as in models of osteoarthritis (OA).
11:09
Visualization of Knee Joint Degeneration after Non-invasive ACL Injury in Rats
0 Views •
2023
Source: Lindsey K. Lepley1,2, Steven M. Davi1, Timothy A. Butterfield3,4 and Sina Shahbazmohamadi5, 1Department of Kinesiology, University of Connecticut, Storrs, CT; 2Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, CT; 3Department of Rehabilitation Sciences, University of Kentucky, Lexington, KY; 4Center for Muscle Biology, Department of Physiology, University of Kentucky, Lexington, KY; 5Biomedical Engineering Department, University of Connecticut,...
FAQs
Each stabilizing structure contributes differently to control at the knee. The anterior and posterior cruciate ligaments, collateral ligaments, menisci, and joint geometry collectively limit unwanted translation and rotation, while surrounding muscles provide dynamic support. Because these elements work together, an abnormal finding in one component can alter overall mechanical behavior during loading or movement.
Surrounding muscles provide dynamic support that complements the restraint supplied by ligaments, menisci, and joint geometry. Their coordinated activity helps the joint respond during standing, walking, and loading rather than relying only on passive structures. This interaction explains why clinical evaluation considers movement and functional control alongside the condition of individual tissues.
Damage to a ligament or meniscus can affect how the knee limits translation and rotation during movement. The resulting mechanical change may become apparent through altered alignment, loading behavior, or movement patterns. Clinicians use these findings to connect a suspected structural problem with functional consequences and to determine whether additional evaluation or treatment planning is needed.
Clinicians combine physical examination, movement analysis, and imaging to evaluate knee stability. Physical examination provides direct clinical findings, movement analysis shows how the joint behaves during activity, and imaging helps identify structural abnormalities. Using these approaches together supports a more complete assessment than relying on a single source of information.
Assessment findings help guide diagnosis, rehabilitation, surgical planning, and decisions about returning to activity. The information can indicate whether management should emphasize functional recovery, operative planning, or continued evaluation. Linking clinical findings with movement behavior allows decisions to reflect both the suspected tissue problem and its effect on knee function.
Research on knee stability examines joint mechanics, osteoarthritis, and strategies for preserving long-term function. Studying how ligaments, menisci, joint geometry, and muscles contribute to controlled motion can clarify how altered mechanics relate to later problems. This context makes stability relevant not only to injury assessment, but also to prevention and maintenance of joint function.