Anneliese Heiner

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Trabecular bone (TB) is a complex quasi-random network of interconnected plates and rods. TB constantly remodels to adapt to the stresses to which it is subjected (Wolff's Law). In osteoporosis, this dynamic equilibrium between bone formation and resorption is perturbed, leading to bone loss and structural deterioration. Both bone loss and structural(More)
STUDY DESIGN Prospective trial. OBJECTIVES To test an intraoperative diagnostic tool to determine if it provided the surgeon with a safe, reproducible, accurate, quantitative measure of lumbar spine motion segment stability. SUMMARY OF BACKGROUND DATA Several devices have been developed to measure motion segment stiffness, however, few have been tested(More)
Leuprolide acetate, a gonadotropin-releasing hormone (GnRH) analogue, is currently being proposed to control debilitating symptoms in women with functional bowel disease. Whether leuprolide alters gastrointestinal motility as part of its actions is unknown. This study was designed to assess, using myoelectric techniques in an animal model, the effects of(More)
STUDY DESIGN Determination of clinical results at least 2 years after lumbar spine surgery during which spinal stiffness measurements were made. OBJECTIVES To determine whether spine stiffness is predictive of clinical results after lumbar spine surgery for spinal stenosis, disc herniation, or degenerative spondylolisthesis. SUMMARY OF BACKGROUND DATA(More)
BACKGROUND The initial goals of the treatment of slipped capital femoral epiphysis (SCFE) are to stabilize the epiphysis, prevent slip progression, and avoid complications. In situ fixation with a single screw is the most accepted procedure to provide an optimal fixation, but fixation failure and slip progression suggest that the procedure might be(More)
Capsular attenuation has been seen after thermal capsulorrhaphy surgery. The purpose of this study was to evaluate the mechanical, histologic, and morphologic effects on capsular tissue after cumulative applications of radiofrequency energy. Ovine patellofemoral capsular tissue was treated with 1, 2, 4, or 8 applications of bipolar radiofrequency energy and(More)
STUDY DESIGN Prospective. OBJECTIVES To measure lumbar spine motion segment stiffness and relate it to the degree of disc degeneration. SUMMARY OF BACKGROUND DATA The association between the instability of the lumbar spine motion segment and disc degeneration remains unclear. The traditional method for determining motion segment instability at the time(More)
PURPOSE The purpose of this in vitro investigation was to measure the forces generated during the continuous seating and unseating of prefabricated attachment systems used to retain implant overdentures. MATERIALS AND METHODS An experimental design consisting of interchangeable fixture mounts, a radially indexable fixture holder, and a materials testing(More)
BACKGROUND The purpose of this study was to determine the influence of preoperative glycemic control in diabetic patients undergoing a primary total hip or knee arthroplasty. We wanted to study patient-perceived outcomes in the medium term, the length of stay, hospital costs, and rate of short-term postoperative complications. METHODS One hundred twenty(More)
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