Return to athletic activity after plate fixation of displaced midshaft clavicle fractures.

Background: Recent data support primary plate fixation of displaced midshaft clavicle fractures. The safety and efficacy of this practice have not been well documented in athletes.

Hypothesis: Plate fixation of clavicle fractures in athletes is a safe and effective procedure, resulting in a reliable and timely return to play.

Biomechanical comparison of bicortical versus unicortical screw placement of proximal tibia locking plates: a cadaveric model.

Objective: The purpose of this study was to compare the biomechanical properties of bicortical with unicortical screws in a proximal tibial fracture cadaveric model.

Setting: Biomechanics laboratory at a Level 1 trauma center.

Patients/participants: Eight pairs (4 male and 4 female) of elderly (average age, 79 years; range, 63 to 104 years) cadaveric tibiae.

Interbody fusion with allograft and rhBMP-2 leads to consistent fusion but early subsidence.

We carried out a prospective study to determine whether the addition of a recombinant human bone morphogenetic protein (rhBMP-2) to a machined allograft spacer would improve the rate of intervertebral body fusion in the spine. We studied 77 patients who were to undergo an interbody fusion with allograft and instrumentation. The first 36 patients received allograft with adjuvant rhBMP-2 (allograft/rhBMP-2 group), and the next 41, allograft and demineralised bone matrix (allograft/demineralised bone matrix group).