Skip to content

Unilateral Versus Bilateral Vertebroplasty in Local Anaesthesia

Unilateral Versus Bilateral Vertebroplasty in Local Anaesthesia: A Prospective Randomised Comparative Study With 6-Month Follow-Up

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07198776
Acronym
UNI-BI PVP
Enrollment
196
Registered
2025-09-30
Start date
2022-01-01
Completion date
2025-06-30
Last updated
2025-09-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoporotic Vertebral Compression Fracture

Brief summary

Osteoporotic vertebral compression fractures are a common cause of severe back pain and disability in elderly patients. Percutaneous vertebroplasty (PVP) with polymethylmethacrylate (PMMA) cement is widely used to relieve pain and stabilize the fractured vertebra. However, there is ongoing debate whether unilateral or bilateral vertebroplasty provides better clinical and radiological outcomes. This prospective randomized controlled trial was conducted at the University Medical Center Maribor to compare unilateral versus bilateral PVP performed under local anaesthesia. A total of 196 patients with acute osteoporotic vertebral compression fractures were enrolled and randomly assigned to one of the two groups. The primary outcome measure was pain reduction assessed by Visual Analogue Scale (VAS). Secondary outcomes included functional improvement measured by the Oswestry Disability Index (ODI), procedure duration, fluoroscopy time, injected cement volume, radiological changes (vertebral height, kyphotic angle), and perioperative complications. The results are expected to provide evidence to guide optimal surgical management of osteoporotic vertebral fractures.

Interventions

Injection of PMMA cement into fractured vertebra under fluoroscopic guidance.

Sponsors

Igor Movrin
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥65 years * Single-level painful osteoporotic vertebral compression fracture (OVCF) confirmed radiologically * Acute fracture (\<6 weeks) * Failure of conservative therapy * Ability to provide written informed consentlusion Criteria:

Exclusion criteria

* Active infection * Coagulopathy * Burst fracture with retropulsion * Neurological deficit * Malignancy-related fracture

Design outcomes

Primary

MeasureTime frameDescription
Change in pain intensity (VAS score)From baseline (preoperative) to 6 months post-procedurePain intensity measured on a Visual Analogue Scale (0-10; higher scores = worse pain).
Oswestry Disability Index (ODI)From baseline to 6 months post-procedureOswestry Disability Index score, range 0-100%, higher scores = greater disability.

Secondary

MeasureTime frameDescription
Injected cement volumeDuring procedureTotal volume of polymethylmethacrylate (PMMA) cement injected into the fractured vertebra, measured in milliliters.
Vertebral height restorationFrom baseline (preoperative) to hospital discharge (postoperative day 1)Percentage restoration of anterior vertebral body height on lateral radiographs.
Operative timeDuring procedureDuration of vertebroplasty procedure measured in minutes.
ComplicationsIntraoperative and 6 months post-procedureIncidence of perioperative and follow-up complications, including cement leakage, adjacent fractures, infection, or neurological events.
Kyphotic angle correctionFrom baseline (preoperative) to hospital discharge (postoperative day 1)Change in local kyphotic angle (°) on lateral radiographs.
Fluoroscopy timeDuring procedureDuration of fluoroscopic exposure during vertebroplasty, measured in seconds.

Countries

Slovenia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026