Does timing matter in performing kyphoplasty? Acute versus chronic compression fractures

Area of Science:

• Orthopedics
• Spinal Surgery
• Osteoporosis Management

Background:

• Osteoporotic vertebral compression fractures (VCFs) cause significant pain and disability.
• Kyphoplasty is a common treatment for symptomatic VCFs.
• The optimal timing for kyphoplasty in acute versus chronic VCFs is not fully established.

Purpose of the Study:

• To compare clinical and radiographic outcomes of kyphoplasty for acute (<10 weeks) versus chronic (>16 weeks) osteoporotic VCFs.
• To evaluate complication rates associated with kyphoplasty in different fracture timing groups.
• To assess patient satisfaction and functional improvement after kyphoplasty.

Main Methods:

• Prospective consecutive cohort study design.
• Inclusion of 28 patients with 52 osteoporotic VCFs treated with kyphoplasty.
• Evaluation of clinical outcomes using Oswestry Disability Index (ODI), Visual Analog Scale (VAS), patient satisfaction, and medication usage.
• Radiographic assessment included vertebral height, local kyphosis, global sagittal alignment, and fracture mobility.

Main Results:

• Significant improvements in clinical outcomes (pain, disability, satisfaction) were observed in both acute and chronic VCF groups, with greater improvement in the acute group.
• Radiographic parameters (vertebral height, kyphosis, mobility) significantly improved in both groups, with superior results in the acute VCF group.
• While both acute and chronic VCFs responded satisfactorily to kyphoplasty, the timing of the procedure significantly influenced the degree of clinical and radiological improvement.

Conclusions:

• Kyphoplasty is an effective treatment for symptomatic osteoporotic VCFs, yielding significant clinical and radiographic improvements.
• Treatment of acute osteoporotic VCFs with kyphoplasty generally results in better outcomes compared to chronic VCFs.
• Further controlled studies comparing kyphoplasty to the natural history of VCFs are warranted to definitively establish the procedure's value.