The ruler was not received for evaluation.Another radiographic ruler from different lot was tested.The scale and the length of the ruler was measured and found to be correct.In addition, the involved tibial nail was received and underwent an examination as following: the production records of the nail did not reveal deviation from specification.The nail had external marks of extraction.The thread in the distal part of the nail was stripped, however the inner part of the thread was still intact.It seems that excessive force was applied on the nail during its insertion and extraction from the bone.The ruler measurement technique was emphasize again to the surgeon as written in the surgical technique.It was also emphasize to the surgeon, the importance of screwing the removal adaptor all the way in during nail removal.
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