Foot & Ankle
LapiFIX™ 4D Bunion Correction System
Bunion CorrectionThe LapiFIX™ (LapiLock) 4D Bunion Correction System delivers precision in every plane and safety in every motion. Its Floating-Frame Geometry neutralises mechanical stress and eliminates the 'clamping' effect of traditional 3D systems, significantly reducing the risk of iatrogenic 2nd-metatarsal fractures while enabling controlled frontal-plane de-rotation, intermetatarsal angle correction, and axial compression for accelerated bone fusion.
Technical Specifications
| Primary Material | Ti-6Al-4V ELI / SS |
| Degrees of Control | 4D (XYZ + Rotation) |
| Cycles Until Failure | 76,602 (vs 29,338 comparator) |
| Max Ultimate Load | 351.3 N |
Key Clinical Features
- 4D Correction (XYZ + Rotation) — complete anatomical control across all three planes plus frontal-plane de-rotation.
- Floating-Frame Geometry — zero-tension correction neutralises stress and reduces iatrogenic 2nd-metatarsal fracture risk.
- Frontal Plane De-Rotation — proprietary arch design restores the sesamoids to their correct anatomical position under the crista.
- Controlled Axial Compression — uniform axial loading (yellow nut) accelerates bone fusion at the TMT joint.
- Superior Fixation Performance — independent testing showed 76,602 cycles to failure vs 29,338 for a leading comparator (261% greater endurance).
System Components
| LapiLock PolyLock U-Plate | TMT fusion construct |
| Floating-Frame Correction Guide | 4D adjustable (XYZ + rotation) |
| Blue Dial — Lateral Translation | Millimetric IM angle closure |
| Yellow Nut — Controlled Compression | Uniform axial loading |
| Purple Arm — Frontal Rotation | Sesamoid restoration |
| Micro-Threaded Adjustment Knobs | Zero back-lash control |
