Mechanical Failures of eight-PlateGuided Growth System for Temporary Hemiepiphysiodesis

Abstract

Level IV.

The Efficacy and Complications of 2-Hole 3.5 mm Reconstruction Plates and 4 mm Noncanulated Cancellous Screws for Temporary Hemiepiphysiodesis Around the Knee

“…In the evaluation of mechanical failure of 8-plate-guided growth, 15% of the surgeons using this method reported screw failure. 26 In the present study, there were no cases of Blount disease; however, we used 4 mm solid cancellous screws that have a core diameter of 1.9 mm. Core diameter is the principal factor that determines the fatigue strength of the screws.…”

“…Solid screws are 70% stronger than the samediameter cannulated screws. 26 In high-risk cases, using 2 parallel 8-plates or solid screws has been recomended. 26,29 No statistically significant difference in body weight and BMI could be found between patients with screw failure and those with no failure.…”

“…26 In high-risk cases, using 2 parallel 8-plates or solid screws has been recomended. 26,29 No statistically significant difference in body weight and BMI could be found between patients with screw failure and those with no failure. These findings are similar to those of Schroerlucke et al 6 Although most of the failures in the present study occurred in patients with genu varum (4 of the 6 failures), as is the same for Schroerlucke and colleagues series, there was no statistically significant difference.…”

Guided growth for the treatment of limb length discrepancy

“…It also offers more rapid correction, less linear inhibition, and fewer hardware failure problems compared with staples [10,11]. Despite the technical advantages of a tension band plate, complications do occur and include unpredictable rebound overgrowth after implant removal and mechanical failures [22,23]. The higher correction rate of angular deformities demonstrated in preliminary series has also been questioned recently [7,8,11].…”

The successful treatment of genu recurvatum as a complication following eight-Plate epiphysiodesis in a 10-year-old girl

“…Epiphysiodesis is a surgical technique in which the growth of specific growth plates is halted by fixation. The use of eight-Plates (Orthofix, McKinney, Texas, USA) as introduced by Stevens is a relatively new method for fixation, where staples and screws have been used for decades [6][7][8][9][10][11][12]. The advantages of eight-Plates are fewer hardware failures, except if used in Blount's disease [13], easy insertion technique with guided growth instead of compressive force, and they leave the epiphysis untouched if performed correctly [1,2].…”