A NEW AIMING DEVICE FOR THE DISTAL INTERL OCKING SCREWS OF THE UNREAMED TIBIAL NAIL (UTN)

Citation
C. Krettek et al., A NEW AIMING DEVICE FOR THE DISTAL INTERL OCKING SCREWS OF THE UNREAMED TIBIAL NAIL (UTN), Langenbecks Archiv fur Chirurgie, 1996, pp. 1179-1179
Citations number
NO
Categorie Soggetti
Surgery
ISSN journal
00238236
Year of publication
1996
Supplement
2
Pages
1179 - 1179
Database
ISI
SICI code
0023-8236(1996):<1179:ANADFT>2.0.ZU;2-P
Abstract
The complex 3D-problem of distal aiming is reduced to three easier 2D- steps: (1) Preadjustment of an aiming handle: This defines rotation an d distance of distal locking holes relative to the proximal nail end. During insertion, the nail usually bends. This is why a readjustment i s necessary. (2) Re-adjustment for transverse holes: At the level of t he distal nail end, a roughly placed ''contact hole'' is drilled. An a symmetric spacer is inserted, placed directly onto the nail and connec ted with the aiming arm. By this re-adjustment, direction and plane of both distal transverse holes are defined. (3) Re-adjust ment for ap h ole: The upper transverse hole is over-reamed (diameter 6.0 mm). A cen tering unit inserted into this channel locks the nail to the aiming ar m. After this readjustment in the frontal plane, the ap hole is define d. Advantages: Simple and reliable; drill holes more precise; radiatio n-free distal targetting.