title: Late migration of threaded wire (schanz screw) from right distal clavicle to the cervical spine.
abstract: We report a 49-year-old man who had undergone osteosynthesis to treat right distal clavicular fracture with a threaded wire (Schanz screw). The wire could not be removed due to its firm fixation within the bone. Eight years later, migration of the broken wire to the right 7th cervical vertebra punctured the lamina, with no spinal cord injury noted. The threaded wire was extracted from the C7 lamina emergently. No complication occurred after pin removal or during the 1-year postoperative follow-up.
authors.affiliation: Department of Orthopedics, China Medical University Hospital, Taichung, Taiwan, R.O.C.
authors.forename: Chun-Hao
authors.initials: CH
authors.lastname: Tsai
authors.forename: Horng-Chaung
authors.initials: HC
authors.lastname: Hsu
authors.forename: Chun-Yin
authors.initials: CY
authors.lastname: Huan
authors.forename: Hsien-Te
authors.initials: HT
authors.lastname: Chen
authors.forename: Yi-Chin
authors.initials: YC
authors.lastname: Fong
mesh_terms: D001864:Bone Wires / Q000009:adverse effects*; D002574:Cervical Vertebrae / Q000293:injuries*; D002968:Clavicle / Q000293:injuries*; D005548:Foreign-Body Migration / Q000150:complications*; D005593:Fracture Fixation, Internal / Q000009:adverse effects*; D050723:Fractures, Bone / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged