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Validation of Patient Specific Surgical Guide for Curved Periacetabular Osteotomy

3 pagesPublished: October 27, 2019

Abstract

In order to elucidate the accuracy of pelvis osteotomy patient specific surgical guide (PSG) setting comparing between the preoperative planning and intraoperative computed tomography (CT), and to determine the usefulness of PSG comparing between the preoperative planning and postoperative CT in curved periacetabular osteotomy (CPO), we performed experimental study using fresh cadaver samples. A total of 18 hips from 9 fresh cadaveric samples used. All hips were imaged from the whole pelvis to the femoral condyles using helical CT to design the preoperative planning and to produce PSG. PSG consisted of osteotomy guide part and rotation guide part of the bone fragments. CPO with PSG was performed in 9 hips (PSG group) while CPO without surgical guide was performed in other 9 hips (manual group). The absolute errors between the preoperative planning and PSG setting for CPO were acceptable. The absolute errors in PSG group between the preoperative planning and the surgery was significantly smaller in the flexion angle, the anteroposterior direction, and the osteotomy lines of the ilium than in manual group. The PSG for CPO is useful for the osteotomy of the pelvis and for the rotation of the acetabular bony fragment.

Keyphrases: absolute error, curved periacetabular osteotomy, patient specific surgical guide

In: Patrick Meere and Ferdinando Rodriguez Y Baena (editors). CAOS 2019. The 19th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, vol 3, pages 319--321

Links:
BibTeX entry
@inproceedings{CAOS2019:Validation_of_Patient_Specific,
  author    = {Takashi Sakai and Hidetoshi Hamada and Masaki Takao and Nobuhiko Sugano},
  title     = {Validation of Patient Specific Surgical Guide for Curved Periacetabular Osteotomy},
  booktitle = {CAOS 2019. The 19th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery},
  editor    = {Patrick Meere and Ferdinando Rodriguez Y Baena},
  series    = {EPiC Series in Health Sciences},
  volume    = {3},
  pages     = {319--321},
  year      = {2019},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-5305},
  url       = {https://easychair.org/publications/paper/6cTJ},
  doi       = {10.29007/3shj}}
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