Three-dimensional geometric constraint evaluation and analysis for determining commercial knee prosthesis

Ming Dar Tsai, Shyan Bin Jou, Ming Shium Hsieh

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This paper describes a method of automatically determining a knee prosthesis by evaluating geometric constraints that include avoiding abnormal bone tissue in sections and interfaces between prostheses and bones, and achieving maximum contact but avoiding incomplete contact. Our algorithms manipulate volume data of patient's knee to complete the above evaluations. These include using interfaces of prosthetic femur and tibia to intersect with the volume-representation femur and tibia and then detect abnormal bone tissue inside the interface, defects and incomplete contacts on interface boundary, and using tangent plane on curve-shaped prosthetic femur to obtain the patella platform for inserting the prosthetic patella and thus compute the size of the prosthetic patella.

Original languageEnglish
Pages (from-to)139-145
Number of pages7
JournalJournal of Medical and Biological Engineering
Issue number3
Publication statusPublished - Sept 2002


  • 3D reconstruction
  • Knee arthroplasty
  • Prosthetic determination algorithm
  • Volume visualization

ASJC Scopus subject areas

  • Biophysics


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