Spine
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Eight healthy volunteers participated in this observational study. ⋯ N/A.
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Animal experimental study. ⋯ N/A.
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Randomized Controlled Trial Comparative Study
A comparison between unilateral transverse process-pedicle and bilateral puncture techniques in percutaneous kyphoplasty.
A prospective comparative study. ⋯ Both bilateral and unilateral PKP are relatively safe and provide effective treatment for patients with painful osteoporotic vertebral compression fracture. However, unilateral PKP received less radiation dose and operation time, it also offered a higher degree of deformity correction and resulted in less complication than bilateral PKP.
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Prospective single-cohort observational study. ⋯ 3.
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Comparative Study
Krag versus Caudad trajectory technique for pedicle screw insertion in osteoporotic vertebrae: biomechanical comparison and analysis.
To compare in detail the effects of pedicle screw insertion in osteoporotic vertebrae via Krag and Caudad trajectory techniques. ⋯ Pedicle screws inserted in osteoporotic lumbar vertebrae using the Caudad trajectory displayed significantly higher biomechanical strength than those inserted using the Krag trajectory, especially during early fixation. Stability of pedicle screw fixation using the Caudad trajectory technique can be estimated by QCT.