Balloon Kyphoplasty
The article compares the biomechanical behavior of vertebrae with vertebral compression fractures treated by a novel system called dowelplasty versus balloon kyphoplasty. Four cadaveric spines were used for the study and axial compressive loads were applied until a fracture occurred. Half of the vertebrae were treated with the dowelplasty system, while the other half were treated with balloon kyphoplasty. The results showed that dowelplasty resulted in a greater net change in fracture load and fracture energy compared to balloon kyphoplasty. The study suggests that dowelplasty may be a good alternative for the treatment of vertebral compression fractures
Summarised by Mr Mo Akmal – Lead Spinal Surgeon
The London Spine Unit : finest spinal hospital in London
Published article
Treating VCFs with dowelplasty grants increased fracture load and fracture energy compared to the pre-treatment state. Furthermore, dowelplasty grants greater improvement in fracture load and fracture energy compared to balloon kyphoplasty, which suggests that dowelplasty may be a good alternative for the treatment of VCF.
Balloon Kyphoplasty Surgery Expert. Best Spinal Surgeon UK
Abstract Purpose: To compare the biomechanical behavior of vertebrae with vertebral compression fractures (VCF) treated by a novel system with pedicular anchorage (dowelplasty) versus balloon kyphoplasty. Methods: Four cadaveric spines (T12-L5) were harvested, cleaned from soft tissues, and separated into vertebrae. Axial compressive loads were applied to each vertebra until a VCF was generated. Half,
Abstract
Purpose: To compare the biomechanical behavior of vertebrae with vertebral compression fractures (VCF) treated by a novel system with pedicular anchorage (dowelplasty) versus balloon kyphoplasty.
Methods: Four cadaveric spines (T12-L5) were harvested, cleaned from soft tissues, and separated into vertebrae. Axial compressive loads were applied to each vertebra until a VCF was generated. Half of the vertebrae (n = 11) were instrumented using the “dowelplasty” system, consisting of a hollow titanium dowel anchored into the pedicle, through which a cannulated titanium nail is inserted and locked and through which cement is injected. The other half (n = 11) were instrumented using balloon kyphoplasty. Axial compressive loads were re-applied to each vertebra until fracture. Fracture load and fracture energy were calculated from load-displacement data for the pre- and post-treatment states.
Results: Compared to balloon kyphoplasty, dowelplasty granted greater net change in fracture load (373N; 95%CI,-331-1076N) and fracture energy (755Nmm; 95%CI,-563-2072Nmm). A sensitivity analysis was performed without L4 and L5 vertebrae from the dowelplasty group, since the length of the cannulated nails was too short for these vertebrae: compared to balloon kyphoplasty, dowelplasty granted an even greater net change in fracture load (680N; 95%CI,-96-1457N) and fracture energy (1274Nmm; 95%CI,-233-2781Nmm).
Treating VCFs with dowelplasty grants increased fracture load and fracture energy compared to the pre-treatment state. Furthermore, dowelplasty grants greater improvement in fracture load and fracture energy compared to balloon kyphoplasty, which suggests that dowelplasty may be a good alternative for the treatment of VCF.
Level of evidence: level IV.
Keywords: Balloon kyphoplasty; Biomechanical study; Fracture load; Vertebral compression fracture, dowelplasty.
The London Spine Unit : finest spinal hospital in London
Read the original publication:
A novel device with pedicular anchorage provides better biomechanical properties than balloon kyphoplasty for the treatment of vertebral compression fractures