[Percutaneous kyphoplasty with double or single balloon in treatment of osteoporotic vertebral body compressive fracture: a clinical controlled study].
OBJECTIVE
To evaluate the clinical efficacy of percutaneous bipediculary kyphoplasty with double or single balloon I treatment of osteoporosis vertebral compressive fractures.


METHODS
Fifty-one patients with painful osteoporotic vertebral compressive fracture involving 69 vertebrae. 19 males and 32 females, aged 72.5 (63 - 85), underwent percutaneous kyphoplasty with double inflatable balloon (29 cases, 38 vertebrae) or single inflatable balloon (22 cases, 31 vertebrae) under X-ray fluoroscopy monitoring. The fractured vertebral bodies were punctuated, balloon was put into the subsided areas and then distended, and bone cement was injected into the cavity. The vertebral height and Cobb angle, preoperative and postoperative, were measured by radiography. Follow-up was conducted for 6 - 12 months.


RESULTS
All patients tolerated the procedure well with dramatic pain relief within 96 hours after the procedure. No clinical complication was found. Visual analog scale score was improved from 7.8 preoperatively to 2.6 postoperatively (P < 0.01). Oswestry disability index was decreased from 73% preoperatively to 26% postoperatively. In the double balloon group, the heights loss of the anterior and middle portions of the vertebral body reduced from 14.7 mm and 10.5 mm to 10.1 mm and 5.5 mm respectively (both P < 0.01), and the Cobb angle was corrected from 22.4 degrees to 12.3 degrees (P < 0.01). In the single balloon group, the heights loss of the anterior and middle portions of the vertebral body reduced from 14.7 mm and 10.6 mm to 10.4 mm and 6.5 mm respectively (both P < 0.01), and the. Cobb angle was corrected averagely from 21.2 degrees to 11.6 degrees (P < 0.01). The mean vertebral height restoration rates were 72.8% and 70.1% in the double and single balloon groups respectively. The mean Cobb angle correct degrees were 10.1 degrees and 9.5 degrees in double and single balloon groups respectively. There were no significant differences in the average height restoration rate and Cobb angle correction between the double and single balloon groups (72.8% vs 70.1%, and 10.0 degrees vs 9.5 degrees both P > 0.05). The pain relief and functional recovery were substantial and maintained to the last follow up.


CONCLUSIONS
Percutaneous bipediculary kyphoplasty with double or single balloon for painful osteoporotic vertebral body compressive fractures is effective and safe.
Sun
Gang
G
Department of Medical Imaging, Jinan Military General Hospital of People's Liberation Army, Jinan 250031, China.
Jin
Peng
P
Hao
Run-Song
RS
Liu
Xun-Wei
XW
Xie
Zhi-Yong
ZY
Li
Fan-Dong
FD
Yi
Yu-Hai
YH
Zhang
Xu-Ping
XP
D000368:Aged; D000369:Aged, 80 and over; D001178:Arthroplasty / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D050815:Fractures, Compression / Q000000981:diagnostic imaging / Q000601:surgery*; D005598:Fractures, Spontaneous / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000150:complications; D011859:Radiography; D016103:Spinal Fractures / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D016896:Treatment Outcome