Kyphoplasty superior to vertebroplasty for osteoporotic vertebral compression fractures .
OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2013;1(13):23 J Clin Neurosci. 2013 Jun;20(6):795-803. doi: 10.1016/j.jocn.2012.05.038. Epub 2013 Feb 18.10 trials (783 patients) were analyzed in this meta-analysis to compare the safety and efficacy between balloon kyphoplasty (KP) and percutaneous vertebroplasty (VP) in the treatment of osteoporotic vertebral compression fractures (OVCF). The meta-analysis found that balloon kyphoplasty had significantly better long term results (longer than 6 months) in terms of kyphosis angle, anterior height of the vertebral body, and cement leakage rates. No between-group differences were found in short and long term visual analog scale (VAS) pain and Oswestry-Disability Index scores, operative times, short term kyphosis angle, or adjacent-level fracture rates.
Were the search methods used to find evidence (original research) on the primary question or questions stated?
Was the search for evidence reasonably comprehensive?
Were the criteria used for deciding which studies to include in the overview reported?
Was the bias in the selection of studies avoided?
Were the criteria used for assessing the validity of the included studies reported?
Was the validity of all of the studies referred to in the text assessed with use of appropriate criteria (either in selecting the studies for inclusion or in analyzing the studies that were cited)?
Were the methods used to combine the findings of the relevant studies (to reach a conclusion) reported?
Were the findings of the relevant studies combined appropriately relative to the primary question that the overview addresses?
Were the conclusions made by the author or authors supported by the data and or analysis reported in the overview?
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Ja = 1
Ungewiss = 0.5
Nicht relevant = 0
Nein = 0
Die Bewertung der Berichtskriterien bewertet die Transparenz, mit der die Autoren die methodischen und studienspezifischen Merkmale der Studie in der Veröffentlichung angeben. Die Bewertung ist in fünf Kategorien unterteilt, die im Folgenden vorgestellt werden.
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Introduction
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Accessing Data
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Analysing Data
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Results
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Discussion
Detsky AS, Naylor CD, O'Rourke K, McGeer AJ, L'Abbé KA. J Clin Epidemiol. 1992;45:255-65
Der Fragilitätsindex ist ein Instrument, das bei der Interpretation signifikanter Ergebnisse hilft und ein Maß für die Stärke eines Ergebnisses liefert. Der Fragilitätsindex gibt die Anzahl der aufeinanderfolgenden Ereignisse an, die zu einem dichotomen Ergebnis hinzugefügt werden müssen, damit das Ergebnis nicht mehr signifikant ist. Eine kleine Zahl steht für ein schwächeres Ergebnis und eine große Zahl für ein stärkeres Ergebnis.
Warum wurde diese Studie jetzt benötigt?
Worldwide, osteoporotic vertebral compression fractures (OVCF) have detrimental effects on patients. They are responsible for decrease in anterior vertebral height, spinal deformity, reduced pulmonary function, abdominal and thoracic content restriction, impaired mobility, and depression. Two surgical procedures, vertebroplasty (VP) and kyphoplasty (KP), have demonstrated better pain relief, vertebral restoration, and mobility than conservative treatments. A previous study stated that kyphoplasty, however, had higher costs than vertebroplasty. Hence, a meta-analysis was needed to compare both surgical procedures with each other.
Was war die wichtigste Forschungsfrage?
What is the safety and efficacy of balloon kyphoplasty (KP) compared to percutaneous vertebroplasty (VP) in treatment of osteoporotic vertebral compression fractures (OVCF)?
- In 7 trials, reporting short term VAS no difference was found between KP and VP (MD= -0.57, 95% CI= -1.33 to 0.20; p=0.15). Similar results were seen in long term VAS scores in 9 studies (MD = -0.99, 95% CI = -2.29 to 0.31; p=0.14).
- In 5 studies, covering ODI scores, 2 showed no differences between the groups in short term results (MD= -6.54, 95% CI = -14.57 to 1.48; p=0.11) and 5 had no differences in long term results (MD= -2.01, 95% CI -11.75 to 7.73; p = 0.69).
- 2 trials indicated no differences in operative times between KP and VP (MD = 4.47, 95% CI = -0.22 to 9.17; p=0.06).
- 3 studies found no differences in short term kyphosis angle after operation (MD= -2.25, 95% CI= -5.14 to 0.65; p=0.13). However, in 4 trials, the long term kyphosis angle was better with KP (MD=-2.64, 95% CI = -4.66 to -0.61; p=0.01).
- 4 trials reported better anterior height restoration of the vertebral body in KP (MD= 3.67, 95% CI =1.40 to 5.94; p =0.002).
- 9 studies also suggested a lower cement leakage rate in KP (RR=0.70, 95% CI =0.52 to 0.95; p=0.02).
- In 7 trials, no differences were seen between two procedures in adjacent vertebral compression fractures (RR=1.52, 95% CI = 0.76 to 3.03; p = 0.24).
Was sollte ich mir besonders merken?
The analyzed data suggested that kyphoplasty and vertebroplasty had similar operative time, pain relief, and functional scores in the treatment of osteoporotic vertebral compression fractures. However, kyphoplasty resulted in better long term kyphosis angle, restoration of vertebral body height, and lower risk of cement leakage.
Wie wird sich dies auf die Behandlung meiner Patienten auswirken?
Although the study supports the use of kyphoplasty for better kyphosis angle, vertebral height restoration, and lower risk of cement leakages, the methodological quality and risk of bias of the studies was poor. Further trials still need to be conducted on this topic.
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