Results 111 to 120 of about 57,792 (166)

An alternative to screws for plating osteoporotic bone

Journal of Biomedical Engineering, 1993
There are several problems with existing techniques used to plate broken bones. One of the most serious is that of screws pulling out during insertion or healing in patients suffering from osteoporosis. This paper investigates the mechanism of this pulling out, and proposes an alternative device to attach plates to weak bones.
T S, King, D, Cebon
openaire   +2 more sources

Slippage Between Screwdriver and Bone Screw

Clinical Orthopaedics and Related Research, 2002
Cortical 3.5-mm stainless steel screws with hexagonal heads and corresponding screwdrivers from two manufacturers were investigated. Measurement of dimensions and torsional testing were done to study slippage between the screw and the driver bit. There were only small differences in dimensions between the manufacturers.
Jon K, Behring, Nils R, Gjerdet, Anders, Mølster   +2 more
openaire   +2 more sources

Pedicle Screws and Bone Mineral Density

Spine, 1994
Thirty-five consecutive patients who underwent surgeries for decompression, and one-level fusions with Cotrel-Dubousset pedicle screws for spinal canal stenosis were included in this study. The relationship between bone mineral density of the lumbar spine and the rate of successful fusion and screw problems was studied.Bone mineral density of the third
K, Kumano, S, Hirabayashi, Y, Ogawa, Y, Aota   +3 more
openaire   +2 more sources

Fracture Fixation with Screws and Bone Plates

Veterinary Clinics of North America: Small Animal Practice, 1999
The treatment goal of fracture fixation is to restore the patient to normal function as quickly as possible. Fracture fixation can be accomplished by various means; fixation with screws and bone plates is not only a popular but a successful technique. In this article, the authors provide concepts that a surgeon must understand for successful screw and ...
M, Conzemius, S, Swainson
openaire   +2 more sources

Remodeling along the Bone-screw Interface

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie, 2008
The stability of cortical miniscrews depends on the contact between bone and implant. The aim of this study was to compare bone remodeling along the contact surface between the screw and bone with and without pre-drilling.Twenty-four FAMI miniscrews (length 10 mm, diameter 2 mm) were inserted into the mandibular alveolar process apical to the premolars
Thomas Michael, Präger, Robert, Mischkowski, Nico, Laube, Paul-Georg, Jost-Brinkmann, Ralf, Müller-Hartwich   +4 more
openaire   +2 more sources

Strength comparison of allogenic bone screws, bioabsorbable screws, and stainless steel screw fixation

The Journal of Foot and Ankle Surgery, 2002
Allogenic bone screws are new to the fixation market and have yet to be tested against current fixation materials. An in vitro comparison of the same sizes of stainless steel, bioabsorbable, and allogenic bone screws was undertaken to assess screw resistance to the forces of bending, pullout, and shear.
James A, Rano, Ruth T, Savoy-Moore, Lawrence M, Fallat   +2 more
openaire   +2 more sources

AN INSTRUMENT FOR THE EXTRACTION OF BONE SCREWS

The Journal of Bone & Joint Surgery, 1952
C H, BRAMLITT, W L, BURKHARDT
openaire   +2 more sources

BONE-SCREW AND BONE-SCREW SCREW-DRIVER

JAMA: The Journal of the American Medical Association, 1920
openaire   +1 more source

Stripping Torque Model for Bone Screws

IFAC-PapersOnLine, 2021
Paul Docherty, Knut Möller
exaly  

Orthodontic bone screws: A quick update and its promising future

Orthodontics and Craniofacial Research, 2021
Wilbur Roberts, Lexie Y Lin
exaly