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PMMA-augmented CICPS
significantly reduces the risk of fractures and provides symptomatic improvement
in patients with thoracolumbar fractures.
The novel polymethylmethacrylate (PMMA)-augmented bone cement-injectable cannulated pedicle screw (CICPS) proves to be very efficient and a safe approach to manage osteoarthritis associated thoracolumbar vertebral compression fractures (AO type A), research published in the Journal, World Neurosurgery.
CICPS is a most extensively used approach to posterior fixation of patients' vertebrae. Although, due to low BMD the internal fixation strength of used pedicle screws got reduced during the osteoporotic spine treatment. This results in loosening and pulling out of the screw. The screw fixation strength then enhanced by using various methods and one of them is polymethylmethacrylate cannulated pedicle screw.
A retrospective cohort review was conducted with 28 patients who
got treatment for osteoporosis-linked thoracolumbar vertebral body compression
fracture with posterior lumbar fusion or thoracolumbar fusion using CICPSs from 2011 to 2015. The degree of
fracture reduction, Oswestry Disability Index (ODI), Visual Analogue Scale
(VAS) scores and correction of kyphosis were used to evaluate treatment's
efficacy. Intra- and postoperative
complications used to assess CICPS safety. Computed tomography (CT), magnetic
resonance imaging (MRI) and radiography were also evaluated.
The ODI (6.83%±15)and VAS (0.50±0.69) scores reduced significantly after the
surgery (p<0.001; <0.001, respectively). Radiological analysis of Cobb
angle and vertebral height exhibited satisfactory correction of kyphosis and
significant fracture reduction (p < 0.001). Furthermore, no cases of screw
loosening or symptomatic complications were noticed, except for a few instances
of cement leakage from the CICPS. These results reflect PMMA-augmented bone
CICPS is a reliable and efficient way for osteoporosis-associated vertebral
fractures (AO type A) treatment with reduced complications.
World Neurosurgery
Application of cement-injectable cannulated pedicle screw in treatment of osteoporotic thoracolumbar vertebral compression fracture (AO type A): A retrospective study of 28 cases.
Zhigang Rong et al.
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