Is Tip Apex Distance As Important As We Think? A Biomechanical Study Examining Optimal Lag Screw Placement

What Is the Relevance of the Tip-Apex Distance as a Predictor of Lag Screw Cut-Out?

Using a simple mathematical formulation, the relationship between the position of the lag screw tip (relevant to both intramedullary and extramedullary devices) and the concept of tip-apex distance (TAD) was derived. TAD is widely used in operating theaters as a surgical guideline in relation to the fixation of trochanteric fractures, and in clinical studies as a predictor of lag screw cut-out....

Is science as global as we think?

A cornerstone of scientific practice is the perceived freedom with which knowledge is disseminated. But does the scientific community make good use of all that is available? Researchers have, on occasion, been accused of preferentially citing the work of colleagues close to home while ignoring those from other parts of the world [1,2]. Such practices, if true, raise serious concerns about the f...

As We May Think

Are we as depressed as we think we are?

MEDICAL attitudes to psychotropic drugs in general and antidepressants in particular tend to be casual, and their effects seen as innocuous. Indeed if used as recommended by their manufacturers tricyclic antidepressants are not very effective drugs, although some of their side effects and interactions can be very serious. It has been stated that tricyclics generally have a margin of superiority...

Humeral Tip-apex-distance as a Prognostic Marker for Proximal Humeral Fractures in 203 Patients

BACKGROUND Humeral head fractures and their postoperative outcome remain a challenging problem in surgical daily routine. Predictive factors for loss of fixation are rare. OBJECTIVE Determination of predictive factors for the failure of osteosynthesis with the loss of fixation or migration of screws in humeral head fractures. METHOD From 1995 to 2011, 408 patients with proximal humeral frac...