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Related Concept Videos

Ankle Joint01:10

Ankle Joint

3.3K
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...
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Bones of the Lower Limb: Tibia and Fibula01:10

Bones of the Lower Limb: Tibia and Fibula

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The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
14.0K

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Related Experiment Video

Updated: Mar 11, 2026

Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus
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Morphomics of the Talus.

David Gorman1, Ebram Handy1, Sikui Wang2

  • 1General Motors LLC and International Center for Automotive Medicine Fellows.

Stapp Car Crash Journal
|November 22, 2016
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Summary

This study analyzed car crash data to identify factors predicting talus fractures, finding occupant weight, impact speed, and gender are significant predictors. It also characterized talus anatomy, revealing gender, BMI, weight, and stature influence its size and strength.

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Area of Science:

  • Biomechanics
  • Orthopedic Surgery
  • Automotive Safety

Background:

  • Ankle fractures are common lower extremity injuries in frontal car crashes.
  • Laboratory studies link dorsiflexion to tibia/fibula fractures, but talus fractures require more complex loading.
  • Talus fractures are debilitating and their specific injury mechanisms in crashes are not fully understood.

Purpose of the Study:

  • To investigate foot-ankle injury rates in frontal car crashes using the NASS-CDS database.
  • To identify predictors of talus fractures in occupants involved in frontal impacts.
  • To characterize talar dome morphomics (size, geometry, strength) and their correlation with demographic factors.

Main Methods:

  • Analysis of the National Automotive Sampling System - Crashworthiness Data System (NASS-CDS) from 2004-2013 for frontal impact occupant injuries.
  • Logistic regression to identify predictors of talus fracture (occupant weight, impact delta velocity, gender).
  • Morphometric analysis of talar dome CT scans from a trauma-free control population (n=207) using multi-variable linear regression.

Main Results:

  • Occupant weight, impact delta velocity, and gender significantly predict talus fracture risk in frontal crashes (p<0.05).
  • Gender, Body Mass Index (BMI), weight, and stature were significant predictors of talus size and strength.
  • Age was significant for talus radius and density.

Conclusions:

  • Automotive crash factors like impact severity and occupant characteristics influence talus fracture risk.
  • Demographic factors significantly correlate with talar bone morphomics, suggesting variations in susceptibility.
  • Understanding these factors can inform injury prevention strategies and improve occupant safety in vehicle design.