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Temporary hemiepiphysiodesis with the eight-Plate for angular deformities: mid-term results
Rolf D Burghardt1, John E Herzenberg
1Department for Trauma Surgery, Technical University of Munich, Munich, Germany.
Summary
The eight-Plate Guided Growth System effectively corrects angular deformities in children, offering a safer alternative to Blount staples. This guided growth method shows good correction rates and reversibility without observed growth disturbances.
Area of Science:
- Pediatric Orthopedics
- Skeletal Growth Modulation
- Limb Deformity Correction
Background:
- Angular deformities in children can be treated with corrective osteotomies or guided growth (hemiepiphysiodesis).
- The eight-Plate Guided Growth System is a newer device for temporary hemiepiphysiodesis, an alternative to the Blount staple.
Purpose of the Study:
- To evaluate the efficacy and safety of the eight-Plate Guided Growth System for correcting angular deformities in pediatric patients.
- To assess the rate of correction and reversibility of the eight-Plate procedure.
Main Methods:
- A retrospective study of 43 patients (54 physes, 51 limbs) treated with the eight-Plate between August 2004 and December 2005.
- Average follow-up was 2 years 2 months; correction rates and reversibility were calculated.
Main Results:
- The eight-Plate effectively corrected mechanical lateral distal femoral angle (average 10.00 degrees) and medial proximal tibial angle (average 7.78 degrees).
- Mechanical axis deviation improved significantly (average 25.4 mm), with no observed growth disturbance or device extrusion.
- Reversibility was demonstrated, with an average rebound of 15.7 mm after plate removal in 10 patients.
Conclusions:
- The eight-Plate Guided Growth System is an effective and safe method for treating angular deformities in growing children.
- It is less prone to spontaneous extrusion than the Blount staple and does not appear to cause growth disturbances.