Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Minimally Invasive Surgery - Spine
Abstract number: 23295
ENDOSCOPIC PERCUTANEOUS VERTEBROPLASTY AND KYPHOPLASTY
USING CALCIUM PHOSPHATE BONE CEMENT FOR OSTEOPOROTIC
VERTEBRAL COMPRESSION FRACTURES
Yasuhiro NANRI, Hiroshi HAYASHI, Michiaki KARITA, Tadashi TERASAKI, Seigo
SUGANUMA
Kouseiren Namerikawa Hospital, Namerikawa (JAPAN)
Endoscopic percutaneous vertebroplasty and kyphoplasty were performed for
osteoporotic vertebral compression fractures. Their clinical outcomes were
reviewed.Methods.Patients were placed in the prone position under general
anesthesia. A knee arthroscope was inserted percutaneously and transpedicularly
into the vertebral body. Fibrotic tissues were resected as much as possible under an
endoscope using a rongeur. Finally, highly viscous calcium phosphate cement was
injected in one bolus. 67 fresh vertebral fractures and 31 non-fresh fractures with
delayed union or non-union were examined.12 of non-union patients also had
spinal/neurological symptoms. We examined the timing of pain free with movement,
the timing of ambulation, and the rate of vertebral wedge deformity from radiographs.
Patients with neuropathy were examined using Japanese Orthopaedic Association
(JOA) scores, the criteria for treatment results of lower back pain.The mean follow-up
period was 1year and 6months.Results.The pain with movement was resolved in 2.1
days postoperatively in fresh cases, and 2.5 days in non-fresh cases. The ambulation
began 6.4 days postoperatively in fresh cases and 4.4 days in non-fresh cases. The
final deformity rate was 71.9% in fresh cases and 66.7% in non-fresh cases. The
mean correction loss was 8.3% in fresh cases and 5.8% in non-fresh cases. In
patients with neurological symptoms, there was an improvement indicated by the
JOA score from 12.5/29 preoperatively to 23.2/29 postoperatively. Conclusion.This
procedure is an effective treatment with low invasiveness for patients with
osteoporotic vertebral fractures.
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