Finite element analysis of sagittal balance in different morphotype: Forces and resulting strain in pelvis and spine.

In humans, vertical posture acquisition caused several changes in bones and muscles which can be assumed as verticalization. Pelvis, femur, and vertebral column gain an extension position which decreases muscular work by paravertebral muscles in the latter. It's widely known that six different morphological categories exist; each category differs from the others by pelvic parameters and vertebral column curvatures.

[Traumatic lesions of the hand extensor system: epidemiology and surgical considerations].

Aims: To investigate demographics, modalities and type of injuries among a population of isolated traumatic injuries of extensor tendons in order to evaluate the consequences on health service and on prevention.

Methods: Retrospective study of injuries treated at the divisions of Plastic Surgery and Orthopedics in a third level referral center among the years 1993-1999.

Main Results: Data from 173 patients were analyzed, a prevalence of males (81%) and injuries at home (55%) has been observed.