Results 271 to 280 of about 96,595 (313)
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Cancellous Screws Are Biomechanically Superior to Cortical Screws in Metaphyseal Bone
Orthopedics, 2016Cancellous screws are designed to optimize fixation in metaphyseal bone environments; however, certain clinical situations may require the substitution of cortical screws for use in cancellous bone, such as anatomic constraints, fragment size, or available instrumentation.
Christopher R Boone +4 more
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Injury, 2020
To biomechanically compare plated constructs using nonlocking bone-screw-fasteners with interlocking threads versus locking screws with traditional buttress threads in geriatric female bone.Eleven matched pairs of proximal and distal segments of geriatric female cadaveric tibias were used to create a diaphyseal fracture model.
Malcolm R. DeBaun +7 more
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To biomechanically compare plated constructs using nonlocking bone-screw-fasteners with interlocking threads versus locking screws with traditional buttress threads in geriatric female bone.Eleven matched pairs of proximal and distal segments of geriatric female cadaveric tibias were used to create a diaphyseal fracture model.
Malcolm R. DeBaun +7 more
openaire +3 more sources
Bone screws and plates in orthognathic surgery
International Journal of Oral Surgery, 1982The almost universal use of bone plates and screws in orthognathic surgical procedures is surveyed. Based upon considerable personal experience, it is advocated that this technique should be used for better stabilization of the fragments, leading to faster bone healing and therefore to less relapse.
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The Journal of Bone & Joint Surgery, 1972
1. In dogs, redrilling a screw hole after removal of the screw did not improve final repair as judged by both histological examination and biomechanical testing.2. The screw holes, despite the radiolucency apparent on roentgenograms were rapidly filled with dense woven bone, and then were slowly ...
Victor H. Frankel +5 more
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1. In dogs, redrilling a screw hole after removal of the screw did not improve final repair as judged by both histological examination and biomechanical testing.2. The screw holes, despite the radiolucency apparent on roentgenograms were rapidly filled with dense woven bone, and then were slowly ...
Victor H. Frankel +5 more
openaire +3 more sources
Alendronate Improves Screw Fixation in Osteoporotic Bone
The Journal of Bone & Joint Surgery, 2007Animal studies have demonstrated the efficacy of the use of bisphosphonates to enhance screw fixation in bone. In this prospective, randomized study of pertrochanteric fractures treated with external fixation, we tested whether systemic administration of bisphosphonates would improve the fixation of hydroxyapatite-coated screws implanted in ...
MORONI, ANTONIO +4 more
openaire +5 more sources
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 +2 more
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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 +2 more
openaire +2 more sources
The Effect of Screw Pullout Rate on Screw Purchase in Synthetic Cancellous Bone
Journal of Biomechanical Engineering, 2008Clinically, orthopaedic fracture fixation constructs are mounted using screws inserted into cancellous bone, while biomechanical studies are increasingly using commercially available synthetic bones. The goal of this study was to examine the effect of screw pullout rate on cancellous bone screw purchase strength in synthetic cancellous bone.
Radovan Zdero, Emil H. Schemitsch
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Resorbable screws for fixation of autologous bone grafts
Clinical Oral Implants Research, 2006Abstract: The aim of this study was to evaluate the suitability of resorbable screws made of poly (d.l‐lactide) acid (PDLLA) for fixation of autologous bone grafts related to graft regeneration and osseointegration of dental implants. In eight edentulous patients suffering from insufficient retention of their upper denture related to a severely ...
Gerry M. Raghoebar +4 more
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An injectable cementing screw for fixation in osteoporotic bone
Journal of Biomedical Materials Research, 2000With the aging population, osteoporosis and osteoporotic fractures are becoming more prevalent. Adequate screw fixation in this type of bone is difficult. Screws are often cemented in bone to help obtain purchase. However, current cementing techniques do not ensure implant stability.
Yuehuei H. An, Brodie E. McKoy
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The Influence of Screw Positions of Bone Fixation Screws on a TMJ Implant
2010There are several diseases that can affect the human temporomandibular joint (TMJ), among which we highlight cancer, trauma or fracture, congenital malformation and osteochondritis.
Pedro Talaia +5 more
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