Accuracy of measuring methods on the femoral head

Meuru Athapattu, Amir Hossein Saveh, Jamaluddin Mahmud, Mohammad Alrashidi, Bin Wang, Mahmoud Chizari

Research output: Contribution to journalConference articlepeer-review


In the process of a hip total or hemi-arthroplasty, patients have their femur measured and analysed in order to obtain a suitable hip implant for the operation. This study investigates the existing methods to measure the femoral head before a total or hemiarthroplasty. In the experimental evaluation of the current study, the size of 15 femur head sample has been measured using four different methods: Vernier caliper, ring gauge, X-ray images and CT scan data. The results from various methods were compared and discussed. The objective of this study is to analyse the most effective mode of measurement for hemi-arthoplastic surgery. The accuracy and reliability of each method was analysed by taking measurements of the femoral head. Statistical analysis shows that the callipers and ring gauge are the most accurate next to CT and X-ray models. It was also observed that an under sizing by ±1 mm of the femoral head shows no definitive harm to a patient.

Original languageEnglish
Pages (from-to)83-87
Number of pages5
JournalProcedia Engineering
Publication statusPublished - 1 Jan 2013
Event2013 1st Malaysian International Tribology Conference, MITC 2013 - Kota Kinabalu, Sabah, Malaysia
Duration: 18 Nov 201320 Nov 2013


  • CT scan
  • Femoral head
  • Hip arthroplasty
  • Ring gauge
  • Vernier caliper
  • X-ray


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