AxisAlign: Precision Surgical Planning Suite 🦵

AxisAlign is a "Human-in-the-Loop" (HITL) computer vision application designed for orthopedic surgeons to perform pre-operative planning for osteotomies (HTO/DFO).

🚀 Key Features

• Spatial Calibration: Corrects for radiographic magnification using fiducial markers.
• Dynamic Simulation: Uses affine transformation matrices to rotate anatomical segments and predict Post-Op HKA (Hip-Knee-Ankle) alignment.
• Precision UX: Integrated ROI (Region of Interest) Loupe to ensure sub-millimeter landmarking accuracy.
• Patient-Specific Morphometrics: Calculates required opening wedge height based on real-time Euclidean distance measurements of the bone.

🛠️ Technical Stack

• Frontend: Streamlit (Reactive State Management)
• Geometry: NumPy & Python Math (Trigonometric Identities & Vector Analysis)
• Computer Vision UI: Streamlit-Drawable-Canvas
• Imaging: Pillow (ROI Extraction)
• Visualization: Matplotlib (Vector Overlays)

📐 The Math Behind the Medicine

The application calculates the Opening Wedge Height ($H$) using the Tangent Identity: $$H = W \times \tan(\theta)$$ Where $W$ is the measured bone width and $\theta$ is the planned correction angle.

👨‍💻 AI Engineer Perspective

This tool serves as a high-fidelity data labeling interface. The manual landmarks acquired provide the Ground Truth dataset required to train future Deep Learning models (CNNs) for automated anatomical landmark detection and automated surgical planning.