H10 h3, h6: the customer reported that the tka large distal cutting guide screw was stuck, looked stripped, and could not be used.The device, used in treatment, was returned investigation.Dhr review found that no conditions that could contribute to the reported event were found.The reported product met manufacturing specifications prior to being released for distribution.A complaint history review found similar reports, this issue will continue to be monitored.Visual and functional inspection of the returned cut guide found no problem.The female threads on the returned material fit with another stabilizer block screw as well as an m6.0 thread gauge.The cut guide was found to be in good working order and was able to be threaded and unthreaded easily.We cannot confirm that there was a relationship established between the reported event and the device because there was no problem found.Factors that could have contributed to the reported issue include if the screw was not properly aligned with the threaded hole or if the screw on the stabilizer block was damaged.Neither can be confirmed or refuted by this investigation.
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