title: Neurological deterioration induced by sitting in patients after cervicothoracic posterior decompression with instrumented fusion surgery for ossification of the longitudinal ligament: two cases reports.
abstract: BACKGROUND
  We report on Japanese patients who showed neurological deterioration induced by sitting after cervicothoracic posterior decompression with instrumented fusion, but showed immediate neurological recovery after bed rest.
  
  
  METHODS
  Patients showed incomplete paraparesis caused by the ossification of the posterior longitudinal ligament at uppermost thoracic spine. Cervicothoracic posterior decompression with instrumented fusion was performed. Postoperatively, the patients showed partial paraparesis when they were sitting. They showed rapid recovery from lower extremity paralysis upon lying down. After strict bed rest for one month, those patients showed no apparent development of paralysis during sitting.
  
  
  CONCLUSIONS
  In patients with postoperative residual anterior spinal cord compression, micromotion might exacerbate neurological symptoms.
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. masaokod@gmail.com.
authors.forename: Masao
authors.initials: M
authors.lastname: Koda
authors.affiliation: Chiba Aoba Municipal Hospital, Chiba, Japan. chikato@fj8.so-net.ne.jp.
authors.forename: Chikato
authors.initials: C
authors.lastname: Mannoji
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. hyper_inago@hotmail.com.
authors.forename: Taigo
authors.initials: T
authors.lastname: Inada
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. koushi_k2005@yahoo.co.jp.
authors.forename: Koshiro
authors.initials: K
authors.lastname: Kamiya
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. ootacoid2000@yahoo.co.jp.
authors.forename: Mitsutoshi
authors.initials: M
authors.lastname: Ota
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. makisatoshi@hotmail.com.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Maki
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. 19501114@faculty.chiba-u.jp.
authors.forename: Kazuhisa
authors.initials: K
authors.lastname: Takahashi
authors.affiliation: University of Tsukuba, Tsukuba, Japan. masashiy@md.tsukuba.ac.jp.
authors.forename: Masashi
authors.initials: M
authors.lastname: Yamazaki
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. m-aramomi@sanmu-mc.jp.
authors.forename: Masaaki
authors.initials: M
authors.lastname: Aramomi
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. osamu_ik@zd5.so-net.ne.jp.
authors.forename: Osamu
authors.initials: O
authors.lastname: Ikeda
authors.affiliation: Departments of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-K, Chiba, 260-8670, Japan. takeo251274@yahoo.co.jp.
authors.forename: Takeo
authors.initials: T
authors.lastname: Furuya
mesh_terms: D000328:Adult; D000368:Aged; D001510:Bed Rest; D019299:Decompression, Surgical / Q000379:methods; D005260:Female; D006801:Humans; D017846:Longitudinal Ligaments / Q000294:innervation / Q000473:pathology / Q000601:surgery*; D008297:Male; D017887:Ossification of Posterior Longitudinal Ligament / Q000150:complications* / Q000473:pathology / Q000601:surgery; D020335:Paraparesis / Q000209:etiology / Q000473:pathology / Q000628:therapy*; D011183:Postoperative Complications; D011184:Postoperative Period; D020127:Recovery of Function; D013117:Spinal Cord Compression / Q000150:complications* / Q000473:pathology / Q000601:surgery; D013123:Spinal Fusion