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Characteristics of pullout failure in conical and cylindrical pedicle screws after full insertion and back-out.
BACKGROUND CONTEXT Biomechanical studies show that bone-mineral density, pedicle morphology, and screw thread area affect pedicle screw pullout failure. The current literature is based on studies ofExpand
A Biomechanical Comparison of Posterior Cruciate Ligament Reconstruction Techniques *
Most posterior cruciate ligament reconstruction techniques use both tibial and femoral bone tunnels for graft placement. Because of the acute angle the graft must make to gain entrance into theExpand
Spine Fusion Using Cell Matrix Composites Enriched in Bone Marrow-Derived Cells
Bone marrow-derived cells including osteoblastic progenitors can be concentrated rapidly from bone marrow aspirates using the surface of selected implantable matrices for selective cell attachment.Expand
A Biomechanical Comparison of Posterior Cruciate Ligament Reconstructions Using Single- and Double-Bundle Tibial Inlay Techniques
Background The efficacy of using a double-bundle versus single-bundle graft for posterior cruciate ligament reconstruction has not been demonstrated. Hypothesis A double-bundle graft restores kneeExpand
Selective Retention of Bone Marrow-Derived Cells to Enhance Spinal Fusion
Connective tissue progenitors can be concentrated rapidly from fresh bone marrow aspirates using some porous matrices as a surface for cell attachment and selective retention, and for creating aExpand
Articular Cartilage Contact Pressure after Tibial Tuberosity Transfer
Medial transfer of the tibial tuberosity has been commonly used for treatment of recurrent dislocation of the patella and patellofemoral malalignment. In this study, six fresh human cadaveric kneesExpand
Biomechanical Comparison of Antegrade and Retrograde Nailing of Humeral Shaft Fracture
A pair controlled study was conducted to compare biomechanical properties of antegrade and retrograde nailing of humeral fractures. First, six paired fresh anatomic specimen humeri were used toExpand
Predicting Operative Blood Loss During Spinal Fusion for Adolescent Idiopathic Scoliosis
Background: Patient and surgical factors are known to influence operative blood loss in spinal fusion for adolescent idiopathic scoliosis (AIS), but have only been loosely identified. To date, thereExpand
The effect of humeral component anteversion on shoulder stability with glenoid component retroversion.
BACKGROUND Posterior glenoid bone loss is often seen in association with glenohumeral osteoarthritis. This posterior asymmetric wear can lead to retroversion of the glenoid component and posteriorExpand
Biomechanical evaluation of dual-energy X-ray absorptiometry for predicting fracture loads of the infant femur for injury investigation: an in vitro porcine model.
OBJECTIVE The purpose of this study was to determine the ability of bone mineral density (BMD) measured by dual-energy x-ray absorptiometry (DXA) and geometry measured by biplanar x-ray to predictExpand
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