In this circumstance, conventional TKA is technically challenging and may have greater risks of malposition of the components, improper joint line and unplanned conversion to a constrained prosthesis intraoperatively [ 14– 16].
A gas embolism is likely to be derived from electrosurgical vapors whereas air embolism seems to arise from improper purging of lines or reinsertion of hysteroscopic instruments.
Other risks are cliff strikes, improper equipment, twisted lines, and protruding objects.
Especially in the case of the gas line, improper installation could create a health and safety risk.
Then an improper parking job.
None of it is improper, of course.
The Lindsay-Woolsey bill (or "little Mann Act") would make it a federal offense to transport an athlete across a state line for improper profit.
Larry Gold, associate general counsel of the A.F.L.-C.I.O., said some of the recent employer letters, by hinting at the possible loss of employees' jobs, appeared to cross the line into improper coercion.
The panel's chairman, Patrick J. Leahy, a Vermont Democrat, said in a letter to Attorney General John Ashcroft that Mr. Ray, a Republican, "may have engaged in improper political activity" by lining up support and making other preparations for a Senate campaign, while continuing to serve as special counsel in the investigation of President Bill Clinton.
Issues that cause this could be due to lack of planning out proper fence-lines or improper positioning of water and/or mineral sources.
The problem lay in the source water contamination (cistern was open to animals) compounded by a recent improper repair to the water line.
