Document Detail

Survivorship analysis of DKS instrumentation in the treatment of spondylolisthesis.
MedLine Citation:
PMID:  9186209     Owner:  NLM     Status:  MEDLINE    
This retrospective study analyzed the survivorship of DKS instrumentation and the clinical outcomes in 185 patients with spondylolisthesis. These patients were treated with Zielke DKS instrumentation for a mean followup period of 3.5 years. Eight (4.3%) patients had late removal of implants, 25 (14%) had rod breakage, three (1.7%) had screw breakage, and 16 (8.7%) had nut loosening. The survivor rate of DKS instrumentation was 96% within 3 months after operation, 80% at 2 years, and 61% at 5 years after surgery. One hundred sixty-three (88%) patients had solid posterolateral fusion, and 167 (90%) patients had good to excellent results. Adjacent instability developed in 18 (9.7%) patients. Although Zielke DKS instrumentation has a smaller rod and relatively insecure locking system between the rod and screw, it is an effective implant for the treatment of spondylolisthesis.
W J Chen; C C Niu; L H Chen; C H Shih
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  -     ISSN:  0009-921X     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  1997 Jun 
Date Detail:
Created Date:  1997-07-07     Completed Date:  1997-07-07     Revised Date:  2005-03-03    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  113-20     Citation Subset:  AIM; IM    
Department of Orthopaedics, Chang Gung Memorial Hospital, Taiwan, China.
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MeSH Terms
Bone Screws / adverse effects,  standards*
Equipment Failure
Joint Instability / etiology
Middle Aged
Retrospective Studies
Spinal Fusion / instrumentation*,  methods
Spondylolisthesis / radiography,  surgery*
Survival Analysis
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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