Entwicklung und Validierung eines Neuen Biomechanischen Frakturmodells der Extraatrikulären Distalen Radiusfraktur Loco Typico (AO 23-A3)

No consensus currently exists on the facture location of dorsally
displaced distal radius fractures (DRFs). We present a systematic
evaluation of the distal fracture line (DFL) location of DRFs and
possible influencing factors. Determining the average location of
DRFs provides a basis for developing more sensitive tests to
determine bone strength using a variety of imaging techniques and
for developing improved biomechanical models to test fracture
characteristics and surgical implants. Initial radiographs of 157
DRFs dorsally displaced DRFs in patients aged 40-74 years were
identified, patient and trauma specific data were collected, and
standard radiographic measurements and (AO) fracture classification
were performed. The dorsal and palmar DFL locations relative to the
corresponding apex of the lunate facet were measured. The DFL was
located dorsally 7.9 ± 2.7 mm and palmarly 11.7 ± 3.9 mm proximal
to the corresponding lunate fossa apex. The dorsal DFL was
significantly distal to the palmar one (p