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A continuous femoral nerve block (cFNB) involves the percutaneous insertion of a catheter adjacent to the femoral nerve, followed by a local anesthetic infusion, improving analgesia following total knee arthroplasty (TKA). Portable infusion pumps allow infusion continuation following hospital discharge, raising the possibility of decreasing hospitalization(More)
BACKGROUND The main determinant of continuous peripheral nerve block effects--local anesthetic concentration and volume or simply total drug dose--remains unknown. METHODS We compared two different concentrations and basal rates of ropivacaine--but at equivalent total doses--for continuous posterior lumbar plexus blocks after hip arthroplasty.(More)
BACKGROUND Previously, we have demonstrated that extending a continuous femoral nerve block (cFNB) from overnight to 4 days after total knee arthroplasty (TKA) provides clear benefits during the infusion, but not subsequent to catheter removal. However, there were major limitations in generalizing the results of that investigation, and we subsequently(More)
Cerebral palsy (CP), caused by an injury to the developing brain, can lead to alterations in muscle function. Subsequently, increased muscle stiffness and decreased joint range of motion are often seen in patients with CP. We examined mechanical and biochemical properties of the gastrocnemius and soleus muscles, which are involved in equinus muscle(More)
PURPOSE Perineural catheter insertion using ultrasound guidance alone is a relatively new approach. Previous studies have shown that ultrasound-guided catheters take less time to place with high placement success rates, but the analgesic efficacy compared with the established stimulating catheter technique remains unknown. We tested the hypothesis that(More)
BACKGROUND Intra-articular fractures may hasten posttraumatic arthritis in patients who are typically too active and too young for joint replacement. Current orthopaedic treatment principles, including recreating anatomic alignment and establishing articular congruity, have not eliminated posttraumatic arthritis. Additional biomechanical and biological(More)
OBJECTIVE To examine injuries sustained in noncombat motor vehicle accidents (MVAs) during Operation Iraqi Freedom by injury type, site, and severity. METHODS Three hundred and forty-eight military personnel injured in noncombat MVAs from March 2004-June 2007 were identified from clinical records completed near the point of injury. RESULTS On average,(More)
BACKGROUND The treatment of ankle fractures often depends on the integrity of the deltoid ligament. Diagnosis of a deltoid ligament tear depends on the measurement of the medial clear space. We sought to evaluate the impact of ankle plantar flexion on the medial clear space. METHODS Mortise radiographs were made for twenty-five healthy volunteers, with(More)
Segmental tibial bone loss, specifically in the setting of high-energy trauma, presents a challenging problem to the treating orthopaedic surgeon. These injuries are often complicated by tissue loss, poor wound healing, and infection. Many techniques of reconstruction have been advocated from bone grafting to bone transport. Transport can accomplished using(More)