What professional planning software should actually do
Corrective osteotomy planning translates a deformity and a chosen correction target into a geometric surgical concept. The software should make the selected axis, hinge and wedge construction explicit so the plan can be understood and challenged before surgery.
The OrthoMetiQ osteotomy workflow is built to keep every geometric assumption visible rather than hiding the correction behind a single automatic number.
Questions the workflow must answer
- Where is the deformity and which correction strategy is intended?
- What is the preoperative load axis?
- Which target point or target ratio is selected and why?
- Where are osteotomy level and hinge defined?
- What correction angle and wedge height result from the chosen geometry?
A traceable planning workflow
- 01
Baseline axis
Measure the mechanical axis on a complete, standardized weight-bearing long-leg image.
- 02
Target definition
Set the target according to diagnosis, compartment status and surgical strategy; do not use an automatic universal target.
- 03
Osteotomy geometry
Define cut level, hinge point and opening or closing direction.
- 04
Correction calculation
Calculate angle and wedge height from the selected construction.
- 05
Plausibility review
Check joint-line context, bone dimensions, hinge safety and whether additional sagittal or rotational information is required.
- 06
Documentation
Export baseline, target, geometry and correction values in a reviewable report.
Useful planning outputs
- Preoperative mechanical axis
- Correction target
- Osteotomy and hinge geometry
- Correction angle and wedge height
- HTO/DFO planning report
Typical quality limits
- Incomplete or non-weight-bearing long-leg imaging
- A target selected without clinical context
- Ignoring sagittal slope or rotational deformity
- Geometric plan without implant/fixation context
- Transferring calculated values without surgical verification
Frequently asked questions
What is planned in HTO and DFO?
Planning defines baseline alignment, correction target, osteotomy level, hinge point, opening or closing wedge, and the resulting angle and wedge height.
Which imaging is required?
A standardized weight-bearing long-leg radiograph is typically required. Additional lateral or joint-specific views may be needed depending on the question.
Is the correction target the same for every patient?
No. The target depends on diagnosis, cartilage and joint status, anatomy, surgical technique and the individual operative strategy.
What does the planning report document?
It records baseline alignment, landmarks, target, correction angle, wedge height and the selected planning geometry.