• K Saita, Y Hoshino, T Higashi, and K Yamamuro.
• Department of Orthopaedic Surgery, Jichi Medical School Omiya Medical Center, Saitama, Japan. saita-k@jichi.ac.jp
• Spinal Cord. 2008 Jan 1;46(1):16-20.

Study DesignRetrospective case series.ObjectivesTo assess the efficacy of posterior spinal shortening for paraparetic patients following vertebral collapse owing to osteoporosis, especially on instrumentation loosening.SettingDepartment of orthopaedic surgery, Jichi Medical University Hospital and Omiya Medical Center in Japan.MethodsThe clinical records and radiographs of 13 patients with paraparesis following vertebral collapse owing to osteoporosis treated with posterior spinal shortening were retrospectively reviewed to evaluate the usefulness of this method. Assessment of the clinical course was done by direct examination in all cases. Ambulatory ability was divided into four categories.ResultsUpon final observation, nine cases were able to walk with a cane or crutch, one case remained in gait training, two cases remained unable to stand and one case with urinary incontinence improved in urinary function. In one case, paralysis deteriorated. Vertebral compression fracture of the end vertebrae that were fixed occurred in three cases complicated with rheumatoid arthritis.ConclusionThe posterior spinal shortening can be a choice for treating delayed paraparesis following vertebral collapse owing to osteoporosis.

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