Table 1.
Characteristics of included studies
| Study | Year | Type of study | Quality | Number of Patients | Mean age | Procedure | Primary | Outcome | Follow-up |
|---|---|---|---|---|---|---|---|---|---|
| Minimal | |||||||||
| Pizzoli et al. [20] | 2009 | Retrospective | Very low | 39 | NA | PVP with PMMA | Mixed | VAS, mobility, analgesic use | NA |
| Chen et al. [21] | 2009 | Retrospective | Very low | 31 | 67 | PVP with PMMA | Mixed | VAS, Karnofsky scale | 12 months |
| Qian et al. [22] | 2011 | Retrospective | Very low | 48 | 68.5 | Kyphoplasty | Mixed | VAS, ODI, SF-36, vertebral body height variation | 24 months |
| Farrokhi et al. [15] | 2012 | Prospective | Very low | 25 | 53.5 | PVP with PMMA | Mixed | VAS | NA |
| Tseng et al. [23] | 2008 | Retrospective | Very low | 57 | 65.18 | PVP with PMMA | Mixed | VAS, amounts of nonnarcotic and narcotic analgesic | 6 months |
| Yang et al. [16] | 2009 | Prospective | Very low | 40 | 57.63 | PVP with PMMA | Mixed | VAS, KPS | 1 year |
| Pflugmacher et al. [17] | 2008 | Prospective | Very low | 65 | 66 | Balloon kyphoplasty | Mixed | VAS, ODI | 24 months |
| Anselmetti et al. [18] | 2013 | Prospective | Very low | 40 | 66.8 | PVP with PEEK | Mixed | VAS, ODI | 10 months |
| Open | |||||||||
| Holman et al. [24] | 2005 | Retrospective | Very low | 139 | 55 | Posterior/anterior/combined tumor resection, decompression, instrumentation, fusion | Mixed | VAS, Frankel grades | 12 months |
| Chong et al. [25] | 2012 | Retrospective | Very low | 105 | 58.3 | Single-stage posterior decompression and stabilization | Mixed | VAS, Frankel grade, KPS | 48 months |
| Eid et al. [26] | 2011 | Retrospective | Very low | 45 | 53 | Circumferential decompression and fusion by means of PTA | Mixed | VAS, ASIA grades | 13 months |
| Liang et al. [27] | 2013 | Retrospective | Very low | 92 | NA | Posterior/anterior/combined tumor resection, decompression, instrumentation, fusion | Mixed | VAS, Frankel grades, Karnofsky score, Tokuhashi scores | 22 months |
| Wonik Cho et al. [28] | 2012 | Retrospective | Very low | 46 | 56.4 | ACF, ACF and PF, DLF, DL | Mixed | VAS, JOAS, Tomita score | 39 months |
| Walter et al. [29] | 2012 | Retrospective | Very low | 57 | 58.6 | Posterolateral approach for decompression combined with posterior instrumentation | Mixed | VAS, Frankel grades, ECOG grades, TPS | 46 months |
| Dae-Chul Cho et al. [30] | 2009 | Retrospective | Very low | 21 | 56.6 | Posterolateral transpedicular approach with posterior instrumentation | Mixed | VAS, Frankel grades, and ECOG grades | 13 months |
| Shehadi et al. [31] | 2007 | Retrospective | Very low | 87 | 53 | Posterior/anterior/combined tumor resection, decompression, instrumentation, fusion | Breast cancer | VAS, Frankel grades | 13 months |
| Street et al. [19] | 2007 | Prospective | Very low | 42 | 56.04 | Single-stage posterolateral vertebrectomy | Mixed | VAS, ECOG grading | NA |
PVP percutaneous vertebroplasty, PMMA polymethyl methacrylate, PEEK polyetheretherketone, VAS visual analog scale, ODI Oswestry Disability Index, JOAS Japanese Orthopaedic Association Score, KPS Karnofsky performance scores, ASIA American Spinal Injury Association, ECOG Eastern Cooperative Oncology Group, PTA posterolateral transpedicular approach, TPS Tomita’s prognostic score, ACF anterior corpectomy and fusion, ACF and PF ACF and posterior fixation, DLF decompressive laminectomy posterior fixation, DL decompressive laminectomy, NA not available, SF-36 Short Form 36 Physical Function.