Treatment of middle-third clavicle fractures using anterior plating with a dynamic compression plate (DCP).

Significantly displaced midshaft clavicle fractures can be managed operatively to restore anatomy and allow early mobilization. Several techniques have described using precontoured anatomically designed plates placed on the superior surface of the bone or reconstruction plates contoured by the surgeon placed either superiorly or anteriorly. We describe the use of the dynamic compression plate placed anteriorly on the clavicle in treating these fractures and discuss the relative advantages of this technique.

MR safety and compatibility of a noninvasively expandable total-joint endoprosthesis.

A noninvasively expandable total-joint endoprosthesis is now available for pediatric patients; the prosthesis can be lengthened by external application of a magnetic field. We investigated the risks of unintentional heating or lengthening of the prosthesis during MR imaging and evaluated the effect of the device on the diagnostic efficacy of MR imaging of surrounding tissues. We performed MR imaging at 1.

Collagen gel systems for sustained delivery and tissue engineering.

Collagen gels are flowable, suggesting the possibility of an easily injectable, biocompatible drug delivery matrix. Sustained release of therapeutic molecules from collagen matrices, however, is beset with difficulties. Fibrillar collagen gels have an effective pore size of several tens of nanometers, too large to control release by hindered diffusion.

A case-control study of female-to-female nonintimate violence in an urban area.

Objectives: The aims of this study were to describe the characteristics surrounding female-to-female nonpartner violence and to identify independent factors associated with risk of female-to-female intentional injuries.

Methods: A case-control investigation was conducted among women who resided in an urban, low-income community and presented for emergency department care for injuries inflicted by female nonpartners.

Results: Women were typically victimized by women they knew (88%), in outdoor locations (60%), and in the presence of others (91%).

Characterization of the low-pH responses of Helicobacter pylori using genomic DNA arrays.

Helicobacter pylori is unique among bacterial pathogens in its ability to persist in the acidic environment of the human stomach. To identify H. pylori genes responsive to low pH, the authors assembled a high-density array of PCR-amplified random genomic DNA.