The Telegraph nail for proximal humeral fractures: a prospective four-year study.

Proximal humeral fractures in 67 patients older than 50 years treated with the Telegraph nail (FH Orthopedics, Heimsbrunn, France) were monitored for 4 years to assess the fracture pattern (weighted Constant score), ranges of motion, and patient satisfaction. The outcome was best in patients with extraarticular surgical neck fractures (mean weighted Constant score, 93.5%); scores were 85% and 77.

Age-dependent response of energy metabolism of human skin to UVA exposure: an in vivo study by 31P nuclear magnetic resonance spectroscopy.

Purpose: The aim of our study was to evaluate the in vivo energy metabolism of human skin as a function of age, in conditions of rest and after a mild stress caused by a suberythemal UVA irradiation.

Methods: The kinetics of UVA-induced modifications in high-energy phosphorylated metabolites of young and old skins were non-invasively monitored over a period of 24 h using 31P nuclear magnetic resonance spectroscopy. In vivo 31P spectra were obtained on the ventral aspect of the wrist, using a NMR Imaging Spectrometer equipped with a double-tuned surface coil.