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Related Concept Videos

Ankle Joint01:10

Ankle Joint

The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
Pulse Assessment Sites01:11

Pulse Assessment Sites

Pulse assessment sites are crucial in evaluating a patient's cardiovascular health. By assessing the pulsations of arteries at specific anatomical locations, healthcare professionals can gather valuable information about blood flow, heart rate, and peripheral circulation. Understanding these pulse assessment sites is essential for conducting comprehensive cardiovascular evaluations and monitoring patients' overall health. These sites are strategically chosen due to the accessibility and...
Sites for measuring blood pressure01:21

Sites for measuring blood pressure

Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
Assessing Blood pressure in the Leg01:11

Assessing Blood pressure in the Leg

Proper measurement of leg blood pressure is a critical skill for healthcare providers, ensuring precise and reliable readings. When performed correctly, this procedure informs patient care and enhances the efficacy of interventions. The following text outlines step-by-step guidelines to measure blood pressure in the leg, providing clarity and ease of understanding for practitioners.
Preparation:
Arteries of Lower Limbs01:20

Arteries of Lower Limbs

The external iliac artery transitions out of the body cavity, entering the femoral region of the lower leg, and is renamed the femoral artery at the point where it traverses the body wall. This artery is responsible for the distribution of blood to the thigh's deep muscles and the skin's ventral and lateral regions, achieved through several minor branches and the lateral deep femoral artery, which also spawns a lateral circumflex artery. The knee area receives blood from the genicular artery,...
Concept of Pressure at a Point01:15

Concept of Pressure at a Point

The concept of pressure at a point in a fluid establishes that pressure within a fluid is uniform in all directions at a specific location. This uniformity occurs because fluid molecules exert force evenly across any point due to their random motion and continuous collisions within the fluid. Pressure at a point is determined by the surrounding fluid molecules and is influenced by factors like depth and density, rather than by shape or orientation.
In a fluid at rest, pressure acts equally in...

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Related Experiment Video

Updated: May 9, 2026

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
14:52

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Published on: December 11, 2013

Pressure distribution at the ankle joint.

J Bruns1, B Rosenbach

  • 1Department of Orthopaedic Surgery, University of Hamburg, Hamburg, FRG.

Clinical Biomechanics (Bristol, Avon)
|August 7, 2013
PubMed
Summary
This summary is machine-generated.

Ankle joint loading and pressure distribution are affected by ligament damage, influencing osteochondral lesion risk. Trauma and overweight can alter joint mechanics, impacting pressure patterns and potentially leading to injury.

Related Experiment Videos

Last Updated: May 9, 2026

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
14:52

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Published on: December 11, 2013

Area of Science:

  • Orthopedics
  • Biomechanics
  • Sports Medicine

Background:

  • Osteochondral lesions are linked to biomechanical factors like trauma and overweight.
  • These factors may influence joint loading patterns and pressure distribution in the ankle.

Purpose of the Study:

  • To investigate ankle joint pressure distribution in a cadaveric model under various loading conditions.
  • To simulate ligamentous trauma (supination/pronation) and assess its effect on ankle joint contact areas and pressure.

Main Methods:

  • Utilized a cadaveric biostatic ankle model.
  • Employed pressure-sensitive film to map pressure distribution.
  • Simulated ligamentous injury through lateral or medial ligament dissection.
  • Evaluated contact area, size, and pressure in different joint positions.

Main Results:

  • Contact area location varied with joint position, with minimum contact in varus/supination.
  • Lateral ligament dissection increased contact area (except varus/supination) and pressure (dorsal extension, varus, supination).
  • Medial ligament dissection showed opposite effects, shifting pressure maxima to the lateral talar border in valgus/pronation.

Conclusions:

  • Ligament integrity significantly impacts ankle joint pressure distribution.
  • Altered pressure patterns following ligamentous injury may contribute to osteochondral lesion development.
  • Understanding these biomechanical changes is crucial for managing ankle injuries and related conditions.