Is there a stable vertebral height restoration with the new radiofrequency kyphoplasty? A clinical and radiological study.
← Research streamIn a prospective study of 25 patients (30 vertebrae) treated with radiofrequency kyphoplasty, pain index scores decreased significantly postoperatively and at 3 months. Vertebral body height measures and kyphosis angle showed significant postoperative improve…
Study snapshot
Abstract
PURPOSE: The aim of this study is to evaluate whether radiofrequency kyphoplasty can restore vertebral body height in osteoporotic vertebral fractures and whether restoration of vertebral height correlates with decreased pain. METHODS: In a prospective study from December 2010 to October 2011, 25 patients underwent RF kyphoplasty for 30 fresh osteoporotic vertebral fractures. The parameter demographics, pain relief, restoration of vertebral body height (mean vertebral body height, kyphosis angle, anterior/posterior edge height) and all complications were recorded. RESULTS: Mean age of patients was 73.8 ± 9.6 (range, 55-83); time from initial painful fracture to treatment was 3.0 weeks ± 1.2; average operative time was 23.5 min (range, 15-41). Average pain index score decreased significantly from 69 ± 8.5 preoperatively to 34.4 ± 5.9 postoperatively (p < 0.001), and to 30 ± 6.3 (p < 0.001) after 3 months. Mean vertebral body height, anterior edge height and kyphosis angle showed significant increases postoperatively and at 3-month follow-up (p < 0.05). In two vertebrae (6.6 %), minimal, asymptomatic cement leakage occurred in the upper disc. After 2 months, one new fracture (3.3 %) was identified in the directly adjacent segment that was also successfully treated with radiofrequency kyphoplasty. There was a preliminary correlation between mean vertebral body height elevation and cement volume (r = 0.533). CONCLUSION: Radiofrequency kyphoplasty achieves rapid and lasting improvement in clinical symptoms. There was stable restoration of vertebral body height with a mean cement volume of 3.0 ml ± 0.6. There was no correlation between restoration of vertebral body height and pain relief.
AI evidence extraction
Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.
Main findings
In a prospective study of 25 patients (30 vertebrae) treated with radiofrequency kyphoplasty, pain index scores decreased significantly postoperatively and at 3 months. Vertebral body height measures and kyphosis angle showed significant postoperative improvements maintained at 3 months. The authors report no correlation between vertebral height restoration and pain relief, and a preliminary correlation between height elevation and cement volume (r=0.533).
Outcomes measured
- Pain relief (pain index score)
- Vertebral body height restoration (mean vertebral body height, anterior/posterior edge height)
- Kyphosis angle
- Complications (cement leakage, new adjacent fracture)
- Correlation between vertebral height elevation and cement volume
- Correlation between vertebral height restoration and pain relief
Limitations
- No control/comparator group described in abstract
- Small sample size (25 patients; 30 fractures)
- Short follow-up (3 months)
- Correlation analyses described as preliminary
View raw extracted JSON
{
"study_type": "cohort",
"exposure": {
"band": null,
"source": "radiofrequency kyphoplasty (medical procedure)",
"frequency_mhz": null,
"sar_wkg": null,
"duration": null
},
"population": "Patients with fresh osteoporotic vertebral fractures",
"sample_size": 25,
"outcomes": [
"Pain relief (pain index score)",
"Vertebral body height restoration (mean vertebral body height, anterior/posterior edge height)",
"Kyphosis angle",
"Complications (cement leakage, new adjacent fracture)",
"Correlation between vertebral height elevation and cement volume",
"Correlation between vertebral height restoration and pain relief"
],
"main_findings": "In a prospective study of 25 patients (30 vertebrae) treated with radiofrequency kyphoplasty, pain index scores decreased significantly postoperatively and at 3 months. Vertebral body height measures and kyphosis angle showed significant postoperative improvements maintained at 3 months. The authors report no correlation between vertebral height restoration and pain relief, and a preliminary correlation between height elevation and cement volume (r=0.533).",
"effect_direction": "unclear",
"limitations": [
"No control/comparator group described in abstract",
"Small sample size (25 patients; 30 fractures)",
"Short follow-up (3 months)",
"Correlation analyses described as preliminary"
],
"evidence_strength": "low",
"confidence": 0.74,
"peer_reviewed_likely": "yes",
"keywords": [
"radiofrequency kyphoplasty",
"osteoporotic vertebral fracture",
"vertebral body height restoration",
"pain relief",
"kyphosis angle",
"cement leakage",
"cement volume"
],
"suggested_hubs": []
}AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.
Identifiers and source
DOI: 10.1007/s00590-012-1026-8
PubMed: 23412159