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Von Misses stresses developed on the soft tissues which are inserted on the 1st metatarsal bone.
| Tissue | Developed stress (A) preoperatively (MPa) | Developed stress (B) postoperatively (MPa) | Difference (B-A)/B x 100% |
|---|---|---|---|
| Dorsal 1st metatarsal ligament | 16.5 | 16.8 | 2% |
| Dorsal ligament with 2nd metatarsal bone | 1.6 | 5 | 68% |
| Deep transverse ligament with 2nd metatarsal bone | 0.6 | 2.2 | 73% |
| Metatarsophalangeal joint capsule | 1.8 | 4.2 | 57% |
| Adductor hallucis muscle | 1.7 | 1.7 | - |
| Plantar aponeurosis | 0.7 | 0.7 | - |
