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Article: Preliminary clinical outcomes of percutaneous kyphoplasty with Sky-bone expander

TitlePreliminary clinical outcomes of percutaneous kyphoplasty with Sky-bone expander
Authors
Issue Date2007
PublisherZhonghua Yixuehui. The Journal's web site is located at http://www.cmj.org/
Citation
Chinese Medical Journal, 2007, v. 120 n. 9, p. 761-766 How to Cite?
AbstractBackground: Percutaneous kyphoplasty (PKP) using balloon expander has been proved to be effective in the treatment of painful vertebral compression fractures. Recently, Sky-bone expander, an alternative bone expander for PKP has been developed. The purpose of this study was to show our preliminary clinical outcomes of PKP with Sky-bone expander. Methods: PKP with Sky-bone expander was performed in 25 patients (30 vertebrae). The operation time, bleeding volume, cement volume injected were recorded. The pain and functional activities of the patients before and after the operation were compared using Wilcoxon signed-rank test. The cement distribution in the vertebrae, vertebral height restoration, and kyphosis correction after the procedure were evaluated by radiography. The pre- and post-operative absolute values of the vertebral height and kyphotic angle were compared by paired-sample t test. All the patients were followed up by telephone or clinic consulting after being discharged from our hospital. Results: The procedure was performed successfully in all the patients. Bipedicular injection was used in 2 of the patients, and unipedicular injection was made in the others. The operation time ranged from 25 to 120 minutes (45 minutes per vertebra on average). The average bleeding volume was about 20 ml. Polymethylmethacrylate1.5-5.0 ml (mean, (3.15±0.78) ml) was injected through each pedicle into all the patients except one, who received calcium sulphate 3.5 ml instead. The patients were followed up for 12-15 months (13.5 months on average). The mean visual analogue scale (VAS) score, Oswestry Disability Index, anterior, midline, and posterior vertebral height, and kyphotic angle of the patients were improved significantly at the end of the follow-up compared with those before the operation, (2.5±1.3, 35.1%, (20.94±6.15) mm, (20.26±4.59) mm, (26.72±3.49) mm, and 8.2 degrees vs. 8.5±1.9, 61.2%, (19.11 ±6.72) mm, (15.88±5.73) mm, (25.78±3.67) mm, and 17.3 degrees; all P<0.05). The cement distribution with unipedicular injection was mostly limited within the injection site in the vertebral body. Cement extravasation was seen at ten levels (33.3%). Conclusions: PKP with Sky-bone expander is an effective and relatively safe alternative to the PKP using balloon expander. It can relieve pain, improve physical function, and restore the height of the collapsed vertebrae, but the cement extravasation is unsolved. © 2005-2008 Chinese Medical Journal, All Rights Reserved.
Persistent Identifierhttp://hdl.handle.net/10722/170104
ISSN
2015 Impact Factor: 0.957
2015 SCImago Journal Rankings: 0.428
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZheng, ZMen_US
dc.contributor.authorKuang, GMen_US
dc.contributor.authorDong, ZYen_US
dc.contributor.authorCheung, KMCen_US
dc.contributor.authorLu, WWen_US
dc.contributor.authorLi, FBen_US
dc.date.accessioned2012-10-30T06:05:20Z-
dc.date.available2012-10-30T06:05:20Z-
dc.date.issued2007en_US
dc.identifier.citationChinese Medical Journal, 2007, v. 120 n. 9, p. 761-766en_US
dc.identifier.issn0366-6999en_US
dc.identifier.urihttp://hdl.handle.net/10722/170104-
dc.description.abstractBackground: Percutaneous kyphoplasty (PKP) using balloon expander has been proved to be effective in the treatment of painful vertebral compression fractures. Recently, Sky-bone expander, an alternative bone expander for PKP has been developed. The purpose of this study was to show our preliminary clinical outcomes of PKP with Sky-bone expander. Methods: PKP with Sky-bone expander was performed in 25 patients (30 vertebrae). The operation time, bleeding volume, cement volume injected were recorded. The pain and functional activities of the patients before and after the operation were compared using Wilcoxon signed-rank test. The cement distribution in the vertebrae, vertebral height restoration, and kyphosis correction after the procedure were evaluated by radiography. The pre- and post-operative absolute values of the vertebral height and kyphotic angle were compared by paired-sample t test. All the patients were followed up by telephone or clinic consulting after being discharged from our hospital. Results: The procedure was performed successfully in all the patients. Bipedicular injection was used in 2 of the patients, and unipedicular injection was made in the others. The operation time ranged from 25 to 120 minutes (45 minutes per vertebra on average). The average bleeding volume was about 20 ml. Polymethylmethacrylate1.5-5.0 ml (mean, (3.15±0.78) ml) was injected through each pedicle into all the patients except one, who received calcium sulphate 3.5 ml instead. The patients were followed up for 12-15 months (13.5 months on average). The mean visual analogue scale (VAS) score, Oswestry Disability Index, anterior, midline, and posterior vertebral height, and kyphotic angle of the patients were improved significantly at the end of the follow-up compared with those before the operation, (2.5±1.3, 35.1%, (20.94±6.15) mm, (20.26±4.59) mm, (26.72±3.49) mm, and 8.2 degrees vs. 8.5±1.9, 61.2%, (19.11 ±6.72) mm, (15.88±5.73) mm, (25.78±3.67) mm, and 17.3 degrees; all P<0.05). The cement distribution with unipedicular injection was mostly limited within the injection site in the vertebral body. Cement extravasation was seen at ten levels (33.3%). Conclusions: PKP with Sky-bone expander is an effective and relatively safe alternative to the PKP using balloon expander. It can relieve pain, improve physical function, and restore the height of the collapsed vertebrae, but the cement extravasation is unsolved. © 2005-2008 Chinese Medical Journal, All Rights Reserved.en_US
dc.languageengen_US
dc.publisherZhonghua Yixuehui. The Journal's web site is located at http://www.cmj.org/en_US
dc.relation.ispartofChinese Medical Journalen_US
dc.subject.meshAdulten_US
dc.subject.meshAgeden_US
dc.subject.meshBone Cementsen_US
dc.subject.meshFemaleen_US
dc.subject.meshFractures, Compression - Surgeryen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshProspective Studiesen_US
dc.subject.meshSpinal Fractures - Surgeryen_US
dc.subject.meshSpine - Surgeryen_US
dc.subject.meshTissue Expansion Devicesen_US
dc.subject.meshTreatment Outcomeen_US
dc.titlePreliminary clinical outcomes of percutaneous kyphoplasty with Sky-bone expanderen_US
dc.typeArticleen_US
dc.identifier.emailCheung, KMC:cheungmc@hku.hken_US
dc.identifier.emailLu, WW:wwlu@hku.hken_US
dc.identifier.authorityCheung, KMC=rp00387en_US
dc.identifier.authorityLu, WW=rp00411en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid17531115-
dc.identifier.scopuseid_2-s2.0-34248658007en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34248658007&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume120en_US
dc.identifier.issue9en_US
dc.identifier.spage761en_US
dc.identifier.epage766en_US
dc.identifier.isiWOS:000246829300005-
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridZheng, ZM=7403007434en_US
dc.identifier.scopusauthoridKuang, GM=16024818800en_US
dc.identifier.scopusauthoridDong, ZY=9250909300en_US
dc.identifier.scopusauthoridCheung, KMC=7402406754en_US
dc.identifier.scopusauthoridLu, WW=7404215221en_US
dc.identifier.scopusauthoridLi, FB=8207335500en_US

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