Complications Resulting In Instrument Damage

Posted by on Jan 31, 2014 | Comments Off on Complications Resulting In Instrument Damage

Complications resulting in instrument damage:

  • striking the cutting edges of instruments such as reamers, step drills and drill bits. These nicks cause the cutting edges to heat up during use and become dull. All of us have felt a hot drillbit after we remove it.
  • Allowing the drillbit to spin rapidly without advancing in the bone. The drillbit will heat up and become dull
  • not removing the bone from the flutes of the drill bit will also result in slow cutting progress, heating up of the drill with subsequent dulling
  • using an electric drill or a drill with improper drilling speeds. Technique of drilling is on the SIGN webpage
  • Allowing the cutting edges of instruments to be hit by other instruments during cleaning and sterilizing
  • rotating a cutting instrument in a reversed direction as the cutting-edge. Reamers, drill bits and step drills should be used clockwise both in insertion and withdraw
  • hitting the L-Handle will damage it which will affect the distal interlock.
  • Bending the cannulated slot finder which is not as strong as the solid slot finder. Once this is bent, it will not enter the slot in the nail nor will the depth gauge go through the slot Finder
  • bending the depth gauge during use may create a permanent curve. This curve may prevent the depth gauge from passing completely through the cannulated slot finder.
  • Using heavy mallet blows during insertion of the nail will bend the nail. The distal interlock must then be found using the curved slot Finder after removing the target arm
  • forcing the cap screws and shoulder bolt into the recipient threads ruins the threads. If the shoulder bolt does not progressed easily, look at the junction between shoulder bolt and target arm. If the second cap screw does not enter the proximal and distal target arms easily, perhaps the first screw is too tight
  • bending the target arm if the cannula does not rest on femur bone. The Screws may be loosened to allow the target arm to be in a position so the cannula will enter the bone

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