Improved biomechanics of two alternative kyphoplasty cementation methods limit vertebral recollapse.

摘要: The clinical efficacy of vertebral cement augmentation for compression fractures (VCFs) remains undetermined. Recent studies have shown that refracture and progression deformity may occur after with significant consequences. Vertebral body height loss following kyphoplasty has also been observed cyclic loading. We hypothesized is partly due to lack fill past the margin cancellous bone created by balloon expansion subsequent failure under load. biomechanical characteristics two alternative cementation techniques were compared standard in cyclically loaded cadaveric VCF constructs. Sectioned osteoporotic thoracolumbar spines compressed 75% anterior height. Specimens then allocated kyphoplasty, pressurization (BP), reinflation 50% injection, or endplate post (EP), perforation cavity rim using an articulating curette prior injection. Following cementation, each specimen was preconditioned over 100,000 cycles. All improved (p's < 0.005). EP BP provided greater than technique (p's ≤ 0.01). Normalized cycles reduced versus (p < 0.04). Height inversely correlated (p < 0.03). No recollapse occurred blinded radiographic analysis. Statement significance: demonstrated constructs decreased cementation. This increased cases when more substantially improves © 2018 Orthopaedic Research Society. Published Wiley Periodicals, Inc. J Orthop Res 36:3225-3230, 2018.