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Systematic back muscle exercise after percutaneous vertebroplasty for spinal osteoporotic compression fracture patients: a randomized controlled trial [with consumer summary]
Chen B-L, Zhong Y, Huang Y-L, Zeng L-W, Li Y-Q, Yang X-X, Jiang Q, Wang C-H
Clinical Rehabilitation 2012 Jun;26(6):483-492
clinical trial
6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

OBJECTIVE: To analyze the clinical significance of postoperative back muscle exercises after percutaneous vertebroplasty for spinal osteoporotic compression fracture patients. DESIGN: Clinical randomized controlled trials of parallel group nonpharmacologic study. SETTING: Patients practised back muscle exercises in the spinal surgery department, rehabilitation department and at their residences. SUBJECTS: Osteoporotic compression fracture patients who had undergone percutaneous vertebroplasty and processed sufficient muscle strength to participate in the training were studied. INTERVENTIONS: Patients were randomized into two groups, which were titled A and B. General postoperation therapy, including antiosteoporotic medications and education, was offered to all patients. Group B patients received additional systematic back muscle exercise. MAIN MEASURES: Both Oswestry Disability Index (ODI) and visual analogue scale (VAS) were recorded preoperatively and postoperatively at three-day, one-month, six-month, one-year and two-year follow-up. RESULTS: From January 2006 to January 2009, a total of 82 patients were assessed for eligibility, 60 patients were enrolled and randomized into two groups. Forty-two (70%) patients (20 of 30 in group A and 22 of 30 in group B) were successfully followed-up for two years. Systematic back muscle exercises resulted in a significant advantage in both measurements. The ODI of group B was significantly better than group A at the six-month, one-year and two-year follow-ups (p < 0.05). The pain level of group B was significantly lower than in group A at the one- and two-year follow-ups (p < 0.05). At the end of our study, the mean (SD) of the ODI in groups A and B were 39.1 (9.14) and 23.4 (5.62); the mean (SD) of the VAS in groups A and B were 3.4 (1.15) and 2.1 (0.84), respectively. CONCLUSIONS: Our findings suggest that the benefit of the exercises required at least six months to be observed; however, the favourable effects could last for two years. Therefore, systematic back muscle exercise should be recommended as one of the treatment guidelines for postpercutaneous vertebroplasty patients.

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