Plating displaced proximal humeral fractures is associated with a high rate of screw perforation. Dynamization of the proximal screws might prevent these complications. The aim of this study was to develop and evaluate a new gliding screw concept for plating proximal humeral fractures biomechanically. Eight pairs of three-part humeral fractures were randomly assigned for pairwise instrumentation using either a prototype gliding plate or a standard PHILOS plate, and four pairs were fixed using the gliding plate with bone cement augmentation of its proximal screws. The specimens were cyclically tested under progressively increasing loading until perforation of a screw. Telescoping of a screw, varus tilting and screw migration were recorded using optical motion tracking.Aims
Methods
To report the five-year results of a randomised controlled trial
examining the effectiveness of arthroscopic acromioplasty in the
treatment of stage II shoulder impingement syndrome. A total of 140 patients were randomly divided into two groups:
1) supervised exercise programme (n = 70, exercise group); and 2)
arthroscopic acromioplasty followed by a similar exercise programme
(n = 70, combined treatment group).Objectives
Methods
