I have developed a patient specific model based on patient spine 3D imagery and cadaveric tests.
I'm looking for a partnership with a spine surgeon for a retrospective monocentric cohorte study for osteoporotic and osteopenic patients.
The aim is to build new surgery indications integrating patient specific anchorage predictions with deformations, instumented levels, vertebrae morphologies and postop follow up.
This model has been designed for a routine planification and does not involve any surgeon extra workload.
A general overview is on pedicleforce.com
Firsy presentation at ISTA2019 in Toronto, Canada.
Yes failure can be predicted if posterior fusion is done at one level alone, in osteoporotic vertebrae, and also length and the size of the screw used
Occurrences of a pedicle screw or cage subsidence after lumbar fusion surgery is frequently reported in osteoporotic patients. However, there is a dearth of research that examines clinical and radiological outcomes after these operations as a function of bone mineral density. To compare the clinical and radiological aspects of oblique lumbar interbody fusion (OLIF) perform with and without Teriparatide in patients with osteoporosis would be the right suggestive idea for future research.
- Prediction of implant failure in posterior lumbar fixation:
- Patient Factors - Medical conditions such as osteoporosis and cancer causing subsidence - Smoking leading pseudoarthrosis - Corticosteroid use - Irradiation history
- Biomechanical Factors - Coronal and sagittal imbalance - Increased thoracolumbar kyphosis
- Procedure Factors - Incorrect procedure for patient eg short segment or posterior instrumentation alone when anterior support is needed
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