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Article: The effect of excision of the posterior arch of C1 on C1/C2 fusion using transarticular screws

TitleThe effect of excision of the posterior arch of C1 on C1/C2 fusion using transarticular screws
Authors
Issue Date2013
Citation
Bone and Joint Journal, 2013, v. 95-B n. 7, p. 972-976 How to Cite?
AbstractTransarticular screw fixation with autograft is an established procedure for the surgical treatment of atlantoaxial instability. Removal of the posterior arch of C1 may affect the rate of fusion. This study assessed the rate of atlantoaxial fusion using transarticular screws with or without removal of the posterior arch of C1. We reviewed 30 consecutive patients who underwent atlantoaxial fusion with a minimum follow-up of two years. In 25 patients (group A) the posterior arch of C1 was not excised (group A) and in five it was (group B). Fusion was assessed on static and dynamic radiographs. In selected patients CT imaging was also used to assess fusion and the position of the screws. There were 15 men and 15 women with a mean age of 51.2 years (23 to 77) and a mean follow-up of 7.7 years (2 to 11.6). Stable union with a solid fusion or a stable fibrous union was achieved in 29 patients (97%). In Group A, 20 patients (80%) achieved a solid fusion, four (16%) a stable fibrous union and one (4%) a nonunion. In Group B, stable union was achieved in all patients, three having a solid fusion and two a stable fibrous union. There was no statistically significant difference between the status of fusion in the two groups. Complications were noted in 12 patients (40%); these were mainly related to the screws, and included malpositioning and breakage. The presence of an intact or removed posterior arch of C1 did not affect the rate of fusion in patients with atlantoaxial instability undergoing C1/C2 fusion using transarticular screws and autograft.
Persistent Identifierhttp://hdl.handle.net/10722/203192
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChang, KCen_US
dc.contributor.authorSamartzis, Den_US
dc.contributor.authorFuego, SMen_US
dc.contributor.authorDhatt, SSen_US
dc.contributor.authorWong, YWen_US
dc.contributor.authorCheung, WYen_US
dc.contributor.authorLuk, KDKen_US
dc.contributor.authorCheung, KMCen_US
dc.date.accessioned2014-09-19T13:08:29Z-
dc.date.available2014-09-19T13:08:29Z-
dc.date.issued2013en_US
dc.identifier.citationBone and Joint Journal, 2013, v. 95-B n. 7, p. 972-976en_US
dc.identifier.urihttp://hdl.handle.net/10722/203192-
dc.description.abstractTransarticular screw fixation with autograft is an established procedure for the surgical treatment of atlantoaxial instability. Removal of the posterior arch of C1 may affect the rate of fusion. This study assessed the rate of atlantoaxial fusion using transarticular screws with or without removal of the posterior arch of C1. We reviewed 30 consecutive patients who underwent atlantoaxial fusion with a minimum follow-up of two years. In 25 patients (group A) the posterior arch of C1 was not excised (group A) and in five it was (group B). Fusion was assessed on static and dynamic radiographs. In selected patients CT imaging was also used to assess fusion and the position of the screws. There were 15 men and 15 women with a mean age of 51.2 years (23 to 77) and a mean follow-up of 7.7 years (2 to 11.6). Stable union with a solid fusion or a stable fibrous union was achieved in 29 patients (97%). In Group A, 20 patients (80%) achieved a solid fusion, four (16%) a stable fibrous union and one (4%) a nonunion. In Group B, stable union was achieved in all patients, three having a solid fusion and two a stable fibrous union. There was no statistically significant difference between the status of fusion in the two groups. Complications were noted in 12 patients (40%); these were mainly related to the screws, and included malpositioning and breakage. The presence of an intact or removed posterior arch of C1 did not affect the rate of fusion in patients with atlantoaxial instability undergoing C1/C2 fusion using transarticular screws and autograft.-
dc.languageengen_US
dc.relation.ispartofBone and Joint Journalen_US
dc.titleThe effect of excision of the posterior arch of C1 on C1/C2 fusion using transarticular screwsen_US
dc.typeArticleen_US
dc.identifier.emailSamartzis, D: dspine@hku.hken_US
dc.identifier.emailWong, YW: yatwa@hkucc.hku.hken_US
dc.identifier.emailCheung, WY: lcheung@hkucc.hku.hken_US
dc.identifier.emailLuk, KDK: hrmoldk@hkucc.hku.hken_US
dc.identifier.emailCheung, KMC: cheungmc@hku.hken_US
dc.identifier.authoritySamartzis, D=rp01430en_US
dc.identifier.authorityLuk, KDK=rp00333en_US
dc.identifier.authorityCheung, KMC=rp00387en_US
dc.identifier.doi10.1302/0301-620X.95B7.30598-
dc.identifier.pmid23814252-
dc.identifier.hkuros237101en_US
dc.identifier.hkuros238010-
dc.identifier.volume95-Ben_US
dc.identifier.spage972en_US
dc.identifier.epage976en_US
dc.identifier.isiWOS:000324619000021-

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