Related Experiment Video
Updated: Aug 12, 2026
10:08
Pseudofracture: An Acute Peripheral Tissue Trauma Model
Published on: April 18, 2011
[Stress fractures in athletes]
I E Steingruber1, C Wolf, H Gruber
1Universitätsklinik für Radiodiagnostik I, Innsbruck, Germany. iris.steingruber@uibk.ac.at
Der Radiologe
|October 29, 2002
Summary
Stress fractures, often seen in athletes, can be challenging to diagnose with initial X-rays. Advanced imaging like MRI and bone scans are crucial for accurate diagnosis of these bone injuries.
Area of Science:
- Radiology
- Orthopedics
- Sports Medicine
Background:
- Stress fractures present diagnostic challenges for radiologists, sometimes mimicking tumors and being difficult to visualize on plain films.
- Historically observed in military personnel and athletes, stress fractures are increasingly prevalent in the general population due to rising sports participation.
Purpose of the Study:
- To highlight the diagnostic difficulties associated with stress fractures.
- To outline the common locations and sport-specific patterns of stress fractures.
- To review the radiological modalities for diagnosing stress fractures.
Main Methods:
- Review of clinical and radiological findings in stress fracture cases.
- Discussion of imaging techniques including plain radiography, computed tomography (CT), magnetic resonance imaging (MRI), and bone scanning.
Main Results:
- Plain radiography can be normal in initial presentations of stress fractures.
- Stress fractures commonly affect the lower extremities (tibia, tarsals, metatarsals, femur, fibula) and upper extremities (humerus, radius, ulna).
- Specific fracture locations are often associated with particular sports (e.g., tibial fractures in runners).
Conclusions:
- Accurate diagnosis of stress fractures necessitates thorough clinical evaluation.
- Advanced imaging techniques, particularly MRI and bone scanning, are highly effective for early and accurate diagnosis when initial radiography is inconclusive.
Related Concept Videos
01:27Fractures: Bone Repair
Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
01:29Bone Disorders
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
01:15Stress: General Loading Conditions
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
01:24Stress Concentrations
Stress concentration is when stress intensifies near discontinuities such as holes or abrupt cross-sectional changes in a structural member. This localized stress can often surpass the average stress within the member. The stress distribution in flat bars, either with a circular hole or varying widths connected by fillets, can be determined experimentally using a photoelastic method. The results are based on ratios of geometric parameters like the ratio of the hole's radius to the smaller width...
01:26Exercise Stress Test
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes