title: Percutaneous Kyphoplasty for Kummell Disease with Severe Spinal Canal Stenosis.
abstract: BACKGROUND
  Percutaneous kyphoplasty (PKP) has been proven as an effective, minimally invasive procedure for the treatment of Kummell's disease in the early stages. However, a risk of cement leakage and further neurological damage remains during and after PKP, especially in chronic osteoporotic stage III Kummell's disease with severe spinal canal stenosis.
  
  
  OBJECTIVE
  To evaluate the feasibility and efficacy of PKP for the treatment of chronic osteoporotic stage III Kummell's disease with severe spinal canal stenosis.
  
  
  METHODS
  A retrospective evaluation of postoperative radiographs.
  
  
  METHODS
  Pain management clinic.
  
  
  METHODS
  A retrospective study was performed on 9 patients with 11 levels managed with PKP for chronic osteoporotic stage III Kummell's disease with severe spinal canal stenosis. Clinical and radiological outcomes were assessed.
  
  
  RESULTS
  Substantial pain relief was attained in all the patients. Both visual analogue scale (VAS) and Oswestry Disability Index (ODI) scores improved significantly from pre- to post-operation (P < 0.05), and remained unchanged at every follow-up. No neurological deterioration was found. Postoperatively, the anterior and midline vertebral body heights were significantly corrected (P < 0.05), and were sustained at the final follow-up. Similar results were seen in the correction of kyphotic angle. Neither cement leakage into the spinal canal nor further dislodging of the posterior vertebral fragments occurred. Two cases experienced subsequent fractures with one having a second PKP and the other being treated conservatively.
  
  
  CONCLUSIONS
  Retrospective study of 9 cases with 11 levels due partly to the rarity of the disorder.
  
  
  CONCLUSIONS
  PKP is an effective, minimally invasive procedure for the treatment of chronic osteoporotic stage III Kummell's disease with severe spinal stenosis, leading to a significant relief of symptoms and improvement of functional status. INSTITUTIONAL REVIEW: This study was approved by the Institutional Review Board.
authors.affiliation: Department of Orthopedics of 1st Affiliated Hospital and Orthopedic Institute of Soochow University, Jiangsu Province, China.
authors.forename: Guang-Dong
authors.initials: GD
authors.lastname: Chen
authors.affiliation: National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Lu
authors.affiliation: Department of Orthopedics of 1st Affiliated Hospital and Orthopedic Institute of Soochow University, Jiangsu Province, China.
authors.forename: Gen-Lin
authors.initials: GL
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Zou
authors.affiliation: Department of Orthopaedic Surgery The First Affiliated Hospital of Soochow University.
authors.forename: Hui-Lin
authors.initials: HL
authors.lastname: Yang
authors.affiliation: Department of Orthopedics of 1st Affiliated Hospital and Orthopedic Institute of Soochow University, Jiangsu Province, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Orthopedics of 1st Affiliated Hospital and Orthopedic Institute of Soochow University, Jiangsu Province, China.
authors.forename: Zong-Ping
authors.initials: ZP
authors.lastname: Luo
mesh_terms: D000368:Aged; D001843:Bone Cements; D005260:Female; D006801:Humans; D058498:Kyphoplasty / Q000379:methods*; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000293:injuries / Q000601:surgery; D008297:Male; D008875:Middle Aged; D059408:Pain Management / Q000379:methods; D010147:Pain Measurement / Q000379:methods; D011859:Radiography; D012189:Retrospective Studies; D012720:Severity of Illness Index; D013115:Spinal Canal / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery*; D016103:Spinal Fractures / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000601:surgery*; D013130:Spinal Stenosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000601:surgery*; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging / Q000293:injuries / Q000601:surgery
chemical_list: D001843:Bone Cements