Andrew H. Schmidt

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OBJECTIVES To determine if there are differences in healing, complications, or number of procedures required to obtain union among open and closed tibia fractures treated with intramedullary (IM) nails inserted with and without reaming. DESIGN Prospective, surgeon-randomized comparative study. SETTING Level One trauma center. PATIENTS Ninety-four(More)
Fractures of the distal femur, proximal tibia, and patella that occur adjacent to a total knee replacement may be very difficult to treat. Fixation options are compromised because of the short articular segment, frequent comminution, pre-existing osteoporosis, previous surgical incisions, and the presence of the knee implant itself. This review article(More)
We studied the effect of varying impaction force, repeated impactions, and fluid contamination on the disassembly strength of Morse-type tapers in 4 commercially available, modular femoral total hip components. The effect of varying techniques of taper assembly on the distraction force was studied. Our results show a reproducible and linear relationship(More)
Closed tibial shaft fractures are common injuries that remain challenging to treat because of the wide spectrum of fracture patterns and soft-tissue injuries. Understanding the indications for surgical and nonsurgical treatment of these fractures is essential for good outcomes. Although cast treatment of stable tibial shaft fractures has traditionally been(More)
The aim of this study was to characterize a new model of chronic osteomyelitis with clinically relevant features. A segmental defect of critical size was surgically created in the rat femur, stabilized with a polyacetyl plate and Kirschner wires, and contaminated with bacteria. The animals were allowed to recover while the contamination progressed to a(More)
The placement of iliosacral screws for the stabilization of pelvic ring lesions is technically demanding. The postoperative computed tomography scans of 31 patients who had 57 iliosacral screws placed for various indications were studied to determine the proximity of these screws to neurovascular structures. The closest distance of the screws from the S1(More)
Periprosthetic fractures of the femur represent a heterogeneous and challenging problem for the orthopedic surgeon. The incidence of these fractures is dramatically increasing, as there are more and more patients with aging total joint replacements. The fractures may occur as the result of a traumatic event, but more often are the result of minor trauma(More)
Forty-nine acute displaced tibial fractures (31 closed, 18 open: 5 Grade I, 7 Grade II, 4 Grade IIIA, and 2 Grade IIIB) were treated in 1 community with a standard operative protocol using a distractor without a fracture table, and an unreamed interlocked tibial nail. Forty-six fractures healed (94%). Complications included 3 nonunions (6%), 2 deep(More)
BACKGROUND Intramedullary nailing is the standard of care for the definitive management of lower extremity long bone fractures. Occasionally, temporary external fixation is used in fractures with severe open wounds or vascular injury before definitive intramedullary nailing. Secondary intramedullary nailing following external fixation is somewhat(More)