MRI Safety Information for PediLoc Locking Plate System and PediLoc Locking Extension Osteotomy System. In non-clinical testing, the Orthopediatrics PediLoc Locking Plate System and PediLoc Locking Extension Osteotomy System implants were determined to be MR-Conditional. A patient with this device can be safely scanned immediately after device placement under the following conditions: