PubMed · 15303620
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2004. Calling all experts.. https://pubmed.ncbi.nlm.nih.gov/15303620/
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Autogenous tibial cancellous bone has been used for reconstructive operations in oral and maxillofacial surgery for over 10 years, and has reduced many of the problems associated with conventional sites of autogenous grafts such as the iliac crest. The ease of access for harvesting, the speed of the operation, and the abundance of bone, are advantages of this donor site. We report a patient who had a graft taken from the proximal tibia and had a displaced fracture 2 weeks later after a fall. Five similar cases have been reported previously, of which none has required surgical intervention.
Falls are common at all ages and especially in the elderly; it is important to understand contributing causes. Over a 1-year period we studied blood alcohol (BAC) and benzodiazepine concentrations in patients attending an emergency department because of a fall. The 22% of 615 patients tested were positive for alcohol, 55% were positive for benzodiazepines (BZD) and 1.5% were positive for both substances. A significantly larger proportion of males tested positive for alcohol (40.2%) than females (7.6%). Both in males and females the percentage as well as the extent of blood alcohol levels decreased significantly with age. Benzodiazepines were also consumed more frequently in males (8.5%) than in females (3.2%, p=0.007). Concerning BAC there was no difference between males (1.75+/-0.81 g/l) and females (1.66+/-0.91 g/l). In patients older than 70 years the BAC (1.30+/-0.80 g/l) was lower in comparison to younger ones. All blood samples positive for benzodiazepines could be traced back to diazepam consumption. We found a high number of young and middle aged patients using alcohol (males=49.7%; females=18.9%) and a lower but still relevant number of benzodiazepine users (males=9.5%; females=2.4%). In addition, this study shows that alcohol plays a more important role in patients up to 70 years in fall-related accidents when compared to accidents of other causes.
A fall scenario is often given to explain the reason for a head injury to an infant. Mostly the examining doctor or forensic expert has to rely on his own experience and to appraise the situation to be consistent or not with his finds. An experiment carried out on an anatomical preparation showed that the skull of a newborn baby was able to repeatedly resist forces of up to 1000 N before breaking in. Even then the fracture lines followed the bony spikes (spiculae) from the ossification centers of the skull bones. If fractures are running across these spiculae there is reason to believe that high local force has been used, and a blow against a sharp edge must be considered.