Abstract:
:Unbalanced contact force on the tibial component has been considered a factor leading to loosening of the implant and increased wear of the bearing surface in total knee arthroplasty. Because it has been reported that good alignment cannot guarantee successful clinical outcomes, the soft tissue balance should be checked together with the alignment. Finite element models of patients' lower extremities were developed to analyse the medial and lateral contact force distribution on the tibial insert. The distributions for four out of five patients were not balanced equally, even though the alignment angles were within a clinically acceptable range. Moreover, the distribution was improved by changing soft tissue release and ligament tightening for the specific case. Integration of the biomechanical modelling, image matching and finite element analysis techniques with the patient-specific properties and various dynamic loading would suggest a clinically relevant pre-operative planning for soft tissue balancing.
journal_name
Comput Methods Biomech Biomed Enginauthors
Oh KJ,Park WM,Kim K,Kim YHdoi
10.1080/10255842.2013.765409subject
Has Abstractpub_date
2014-01-01 00:00:00pages
1630-4issue
14eissn
1025-5842issn
1476-8259journal_volume
17pub_type
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journal_title:Computer methods in biomechanics and biomedical engineering
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