Percutaneous Pedicle Screw Fixation with Polymethylmethacrylate Augmentation for the Treatment of Thoracolumbar Intravertebral Pseudoarthrosis Associated with Kummell’s Osteonecrosis
Table 1
Characteristics of two groups.
Characteristics
PPF group
PVP group
Age (year)
69.5 ± 5.1
71.1 ± 3.9
Sex (M/F)
3/15
9/21
Bone mineral density (-score)
−3.55 ± 0.59
−3.61 ± 0.57
Mean follow-up period (months)
24.8 ± 1.3
26.8 ± 2.1
Location of compression fracture
5 (T12); 9 (L1); 3 (L2); and 1 (L3)
3 (T11); 7 (T12); 15 (L1); 3 (L2); and 3 (L3)
Mean operation time
64.7 ± 15.4 minutes
Volume of estimate blood loss
91.1 ± 15.4
Complications related to operation
Screw fracture: 1 case
Severe recollapse of augmented vertebral body: 2 cases
