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Three-dimensional corrective osteotomy using a patient-specific osteotomy guide and bone plate based on a computer
Shinsuke Omori1, Tsuyoshi Murase, Toshiyuki Kataoka
1Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan.
Summary
Patient-specific guides and bone plates enable accurate three-dimensional (3-D) corrective osteotomies. This study confirms the system
Area of Science:
- Orthopedic surgery
- Biomedical engineering
- Medical imaging
Background:
- Investigating the accuracy of 3-D corrective osteotomy.
- Utilizing patient-specific guides and bone plates based on computer simulation.
Purpose of the Study:
- To evaluate the precision of patient-specific instrumentation in 3-D corrective osteotomy.
- To assess the accuracy of pre-operative simulations for limb deformity correction.
Main Methods:
- Used six fresh-frozen cadaver upper limbs.
- Evaluated guide setting errors on the distal humerus and radius.
- Assessed bone plate fixation accuracy against pre-operative simulations.
Main Results:
- Guide location errors were <1.5° and 1.0 mm (humerus) and <1.0° and 1.0 mm (radius).
- Plate fixation errors were <2.0° and 1.5 mm (humerus) and <1.0° and 1.0 mm (radius).
Conclusions:
- The patient-specific system demonstrates high feasibility for precise 3-D limb deformity correction.
- The technology offers accurate and reliable results in complex orthopedic procedures.
