Document Detail


Execution accuracy of bone resection and implant fixation in computer assisted minimally invasive total knee arthroplasty.
MedLine Citation:
PMID:  19581096     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
While computer assisted total knee arthroplasty (TKA) has been documented to increase the surgical accuracy in the planning process, there is little information about the accuracy in execution processes. We aimed to determine the accuracy of execution processes for bone resections and implant fixation in TKAs performed with the techniques of computer assisted navigation and minimally invasive surgery. Execution deviations, defined as the differences between planned targets and executed results, were evaluated for bone resections and implant fixation in 107 TKAs. In tibia resection, the mean resection thickness, coronal alignment, and sagittal alignment were 0.2mm smaller, 0.3 degrees more valgus, 0.3 degrees less posterior slope than the planned, respectively. In femur resection, the mean resection thicknesses in the medial and lateral femoral condyles, coronal alignment, and sagittal alignment were 0.6mm smaller, 0.8mm smaller, 0.1 degrees more varus, and 0.7 degrees less posterior slope than the planned, respectively. In implant fixation, the mean coronal alignment and degree of extension was 0.7 degrees more valgus and 1.6 degrees decrease than the planned, respectively. Only the occurrence of unacceptable executions in implant fixation had significant effects on the final coronal alignment. The density of a bone and the quality of saw blade had significant effect on the accuracy of bone resections. Execution deviations from planned alignment commonly occur in computer-assisted minimally invasive TKA, resulting typically from the techniques of bone resections and implant fixation, and this information should be considered to improve the surgical accuracy of navigated TKAs.
Authors:
Tae Kyun Kim; Chong Bum Chang; Yeon Gwi Kang; Byung June Chung; Hyung Joon Cho; Sang Cheol Seong
Related Documents :
9308526 - Experience of total wrist arthroplasty with silastic implants plus grommets.
10149606 - Flexible implant arthroplasty of the radiocarpal joint.
9768906 - In vitro measurement of patellofemoral force after three types of knee replacement.
23568266 - Effect of chlorhexidine on the bond strength of a self-etch adhesive system to sound an...
19007466 - Determining the lifetime of detectable amounts of gunshot residue on the hands of a sho...
17898926 - Exacerbation of electrical storm subsequent to implantation of a right vagal stimulator.
Publication Detail:
Type:  Journal Article     Date:  2009-07-05
Journal Detail:
Title:  The Knee     Volume:  17     ISSN:  1873-5800     ISO Abbreviation:  Knee     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2009-11-25     Completed Date:  2010-01-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9430798     Medline TA:  Knee     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  23-8     Citation Subset:  IM    
Affiliation:
Joint Reconstruction Center, Seoul National University Bundang Hospital, Seongnamsi, Gyunggido 463-707, South Korea.osktk@snubh.org
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Arthroplasty, Replacement, Knee / instrumentation,  methods*
Bone Cements
Cementation
Female
Femur Head / surgery
Humans
Knee Prosthesis*
Male
Middle Aged
Reproducibility of Results
Surgery, Computer-Assisted / methods*
Surgical Procedures, Minimally Invasive*
Tibia / surgery
Chemical
Reg. No./Substance:
0/Bone Cements

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


Previous Document:  Changes in cerebrospinal fluid nerve growth factor levels during chick embryonic development.
Next Document:  Synthesis, antiviral activity and molecular modeling of oxoquinoline derivatives.