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Orthopaedic Proceedings
Vol. 90-B, Issue SUPP_I | Pages 133 - 133
1 Mar 2008
Hadjipavlou A Gaitanis I Tzermiadianos M Katonis P Pasku D
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Purpose: The purpose of this study is to evaluate the safety of methylmethacrylate cement balloon kypho-plasty (BK) when applied to five or six levels in the same sitting and the incidence and location of cement leakage.

Methods: Eighty nine patients (215 vertebral bodies-VBs) with osteoporotic compressive fractures (OCF), and 24 with osteolytic tumors (OT) (72 VBs) were treated with BK. Of patients with OCF, 27 were treated at one level, 26 at two, 21 at three, 7 at four, 6 at five, 2 at six levels. Of OT patients, 3 were treated at one level, 5 at two, 9 at three, 3 at four, and 4 at five.

Results: A drop in blood pressure of more than 25mmHg during cement injection was observed in four patients, and was not associated with the number of VB treated. The procedure was aborted in two patients. Otherwise no significant drop in arterial O2 was noted. One patient treated for 5 levels developed fever and tachepnoea for 24 hours after surgery. Arterial O2 and chest x-rays were normal. Pain significantly improved in 95% of patients with OCF and 98% of patients with tumors. In the osteoporotic group, kyphosis correction was achieved in 91% with a mean correction of 7.89°. Cement leakage occurred in 21/215 VBs (9.7%); Epidural: two (0.9%), intraforaminal: 1 (0.5%), intradiscal: 7 (3.2%) while through the anterior or lateral vertebral wall: 11 (5.1%). In the OT group leakage occurred in 6 VBs (8.3%), including 9 (7.0%) through the anterior or lateral wall and one (1.3%) intradiscal. None of the patients had any clinical consequences associated with cement leakage.

Conclusions: BK is a safe and effective procedure, even when applied for 5 or 6 levels. End plate fracture or vertebral wall lytic destruction can effectively be managed by eggshell balloon cementoplasty, thus minimizing the incidence of cement leakage. The incidence of cement leakage with KP (9.8%) is far less than that reported with vertebroplasty, (65.5% shown on CT scans).