Reduced rate of proximal junctional fractures above long-segment instrumented constructs utilizing a tapered dose of bone cement for prophylactic vertebroplasty, a …
J Zavatsky, A Shah, R McGuire, H Serhan… - Global Spine …, 2016 - journals.sagepub.com
Introduction PJK is a well-described post-operative complication associated with long
instrumented fusion constructs. The surgical creation of a stiff upper segment along with
patient osteoporosis has been suggested as etiologies. Materials and Methods Fifteen fresh-
frozen ligamentous T6-pelvis specimens were divided equally into three Groups: Group 1-
Bilateral pedicle screw and rod instrumentation from T10 to S1, no cement; Group 2-
Instrumentation+ 4cc of cement injected into T10 (UIV) and 4cc into T9 (UIV+ 1), 2cc of …
instrumented fusion constructs. The surgical creation of a stiff upper segment along with
patient osteoporosis has been suggested as etiologies. Materials and Methods Fifteen fresh-
frozen ligamentous T6-pelvis specimens were divided equally into three Groups: Group 1-
Bilateral pedicle screw and rod instrumentation from T10 to S1, no cement; Group 2-
Instrumentation+ 4cc of cement injected into T10 (UIV) and 4cc into T9 (UIV+ 1), 2cc of …
Reduced Rate of Proximal Junctional Fractures above Long Instrumented Constructs Utilizing a Tapered Dose of Vertebral Cement: A Biomechanical Study
JM Zavatsky, DC Briski - The Spine Journal, 2016 - thespinejournalonline.com
BACKGROUND CONTEXT: PJK is not uncommon and can result in significant complication
after spinal deformity surgery. Increased mechanical stress at the proximal junction due to
the transition of a fixed to a mobile spine segment, along with osteoporosis are risk factors
for PJK. We utilized a tapered dose of cement in T10, T9, T8 to reduce the rate of proximal
junctional fractures. PURPOSE: To evaluate if a tapered dose of vertebral cement in T10, T9,
T8 will reduce the rate of fractures at the proximal junction in a cadaveric T10-pelvis …
after spinal deformity surgery. Increased mechanical stress at the proximal junction due to
the transition of a fixed to a mobile spine segment, along with osteoporosis are risk factors
for PJK. We utilized a tapered dose of cement in T10, T9, T8 to reduce the rate of proximal
junctional fractures. PURPOSE: To evaluate if a tapered dose of vertebral cement in T10, T9,
T8 will reduce the rate of fractures at the proximal junction in a cadaveric T10-pelvis …
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