Visual, dimensional, functional and material analysis could not be performed as the device was not returned.A review of the complaint and device history records could not be performed as a valid lot number was not provided and could not be obtained.Per es2 surgical technique: the surgeon must warn the patient of the surgical risks and made aware of possible adverse effects.The surgeon must warn the patient that the device cannot and does not replicate the flexibility, strength, reliability or durability of normal healthy bone, that the implant can break or become damaged as a result of strenuous activity or trauma, and that the device may need to be replaced in the future.If the patient is involved in an occupation or activity which applies inordinate stress upon the implant (e.G., substantial walking, running, lifting, or muscle strain) the surgeon must advise the patient that resultant forces can cause failure of the device.Patients who smoke have been shown to have an increased incidence of non-unions.Notes from initial surgery were not provided.It is unknown how screw holes were prepared during initial surgery and how final tightening was performed.It is unknown if the screws were over angulated or blocker was over tightened.Patient's bone quality and activity levels are unknown.Due to lack of information and product not returned, exact cause could not be determined.Potential causes include: incorrect device placement, excessive patient post-op activities, insufficient final locking/tightening, surgeon applying too much torque to tighten the blockers, poor fixation construct, etc.
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