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Spine

IS VERTEBROPLASTY A PLACEBO? A RETROSPECTIVE REVIEW OF OUTCOMES FOLLOWING VERTEBROPLASTY AND KYPHOPLASTY IN LIVERPOOL

Britspine, British Scoliosis Society (BSS), Society for Back Pain Research (SBPR), British Association of Spine Surgeons (BASS)



Abstract

Royal Liverpool University Hospital, Liverpool, UK

To retrospectively review outcomes in patients who underwent vertebroplasty in Liverpool in response to recent level 1 publications claiming vertebroplasty to be no better than sham procedure assessed using 2 criteria. We reviewed cases between 2006 and 2009 looking at 5 criteria for procedure.

Visual Analogue Score (VAS)

Oswestry disability index scores (ODI)

96 patients identified. 10 patients excluded (inadequate data recorded) (n=86). Operated levels n=134 (thoracic n=61, lumbar n=71, sacral n=2).

Presenting symptoms included back pain (86/86) and point tenderness was present in 90% (77/86). Average length of symptoms was 11.50 months with 28% reporting greater than 12 months. 72% recalled definite onset of symptoms with 90% being associated with a low velocity injury. Radiological findings showed an average of 54% height collapse and 91% showing high signal on STIR MRI sequences. Number of levels operated – 3 or more (n=9 VAS 5.3 ODI 10.6); 1 to 2 levels (n= 77 VAS 3.7 ODI 13.9)

Average improvement in VAS score was 3.8.and ODI 13.6

47% (40/86) of patients met all 5 current criteria recommended for operation (VAS 3.7, ODI 14). 53% (46/86) of patients met 2-5 criteria (VAS 3.8, ODI 13.4).

There was improvement in pain scores in 91% of patients with an average pre-op VAS 7.8 and post-op VAS 4.0. There was no significant difference in patients meeting all 5 criteria compared to those meeting 2-5 criteria.