Biomechanical comparison of bone staple techniques for stabilizing tibial tuberosity fractures

This study compared the biomechanical properties of bone-stapling techniques with those other fixation methods used for stabilizing tibial tuberosity fractures using 3-dimensionally (3D)-printed canine bone models. Twenty-eight 3D-printed models made from computed tomography scan files were used. Tibial simulated osteotomy. All samples divided into 4 groups. Group 1 was stabilized a pin and tension-band wire; group 2, an 8 mm-wide staple; 3, 2 horizontally aligned pins 10 staple. Tensile force applied vertical distraction until failure occurred. The load displacement recorded during tests. groups based on required to cause displacements 1, 3 mm. maximum loads modes recorded. at all in greater than 3. mm similar There no significant difference between Groups provided Failure occurred because tearing nylon rope, fracture, wire breakage, bending, fracture around staple insertion. In conclusion, these results demonstrate that technique is acceptable alternative stabilization