title: Postoperative degenerative changes of the metatarsal head following use of the Swanson implant: four case reports.
mesh_terms: D000328:Adult; D001847:Bone Diseases / Q000175:diagnosis; D006215:Hallux Valgus / Q000601:surgery*; D006801:Humans; D008297:Male; D008684:Metatarsus; D011183:Postoperative Complications / Q000175:diagnosis*; D019736:Prostheses and Implants; D014034:Toes / Q000601:surgery