Unacceptable Variation in the Core Diameters of Some ao Type Cancellous Screws | Zendy

W. J. P. Radford | Zendy; JL Pozo | Zendy; W MuirheadAllwood | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Unacceptable Variation in the Core Diameters of Some ao Type Cancellous Screws

Author(s) -

W. J. P. Radford,

JL Pozo,

W MuirheadAllwood

Publication year - 1988

Publication title -

journal of the royal society of medicine

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.38

H-Index - 81

eISSN - 1758-1095

pISSN - 0141-0768

DOI - 10.1177/014107688808100707

Subject(s) - core (optical fiber) , radius , cube (algebra) , materials science , reduction (mathematics) , cancellous bone , orthodontics , composite material , medicine , mathematics , surgery , computer science , geometry , computer security

This study assesses the variability in core diameter of a series of cancellous screws and its effect on torque strength. Analysis of a series of 107 cancellous screws revealed a wide variation of the core diameters in our sample. Tests to evaluate the effect of this variation showed that torsional strength is directly proportional to the cube of the radius of the core; a 30% reduction in radius resulting in a 70% loss in torsional strength. Conclusions drawn from this experimental data indicate that variability in core dimensions below the recommended specifications is unacceptable in clinical practice.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research