Retrospective Evaluation of Guided Growth Plate System Plus's Safety and Clinical Performance for the Treatment of Lower Limbs Deformities.

Inclusion Criteria: * he/she has been diagnosed with an angular deformity or discrepancy in length of femur and/or tibia * at the time of treatment he/she had not yet reached the age of 18; * at the time of treatment the growth plates of the treated limbs was not already closed; * according to the Investigator's judgment, angular deformity and/or length discrepancy had a regular indication for surgical treatment with tensioning plates * deformity was treated with the 8 Plate Plus , according to the manufacturer's instructions * the treatment with 8 Plate Plus was completed and the patient had at least one post-removal control of the plate * clinical patient data for the evaluation of safety and benefit of the device are still available Exclusion Criteria: * Not treated with 8 Plate Plus to correct upper limb deformities only and not lower limb deformities * its clinical data are no longer accessible and /or do not allow the evaluation of the safety and benefit of the device under study * had a medical condition which constitutes a contraindication to treatment with 8 Plate Plus in accordance with the manufacturer's instructions for use; * at the same time was treated with an unauthorised device which could not be removed without putting the patient's safety at risk.