It was reported a patient underwent revision surgery due to the device breaking.The reporting surgeon was contacted by another surgeon for a referral of a failed panta nail case with 2 broken calcaneal screws.The reporting surgeon requested assistance from integra to remove the nail for which a panta nail removal set and normal panta nail set was needed and sent to the hospital.The revision surgery took place on (b)(6) 2015.X-rays confirmed breakage and showed positioning of the nails.The surgery was expectedly very difficult due to the middle segments of the screws remaining in the calcaneus, anchored into position.Due to difficulties, the surgeon reverted to his 3rd choice method of removal, which was to cut a medial window in the tibial (bone) and use a hammer to slowly push the nail out through the calcaneus.This was successful and the nail and middle segments of the calcaneal screws were removed.
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Integra has completed their internal investigation on 8jan2016.The additional investigation activities included: methods: review of device history records.Review of complaint history.Results: a review of the device history cannot be performed as no lot number was provided to newdeal.A review of the complaint system was performed.This is the third incident reported to newdeal about breakage of a panta® nail fully threaded screw diameter 5mm for the past two years (5 screws are involved).During the same time period, about 5811 panta® nail fully threaded screws diameter 5mm were sold.(b)(4).Conclusion: given the description of the event, the observations made during the investigation and the lack of important information such as manufacturing lot or product return, the root cause of the incident cannot be determined even if an improper initial positioning of the nail can be suspected due to revision surgery observations done by surgeon.
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