Korean J Bone Metab > Volume 18(1); 2011 > Article
Korean Journal of Bone Metabolism 2011;18(1):33-38.
The Prevalence of Osteoporosis or Degenerative Osteoarthritis of Knee in Female Patients with Lumbar Spinal Stenosis Over 50 Years
요추부 척추관 협착증을 가진 50세 이상 여자 환자의 골다공증 또는 슬관절 퇴행성 관절염의 유병율
이병호1,박 훈1,김승현1,김호중1,문은수1,김학선1,박시영2,김남현1,이환모1,문성환1*
연세대학교 의과대학 정형외과학교실1, 고려대학교 의과대학 정형외과학교실2
Abstract
Objective
To evaluate the prevalence of osteoporosis and degenerative knee osteoarthritis (OA) in female patients over 50 years, who were surgically indicated for lumbar spinal stenosis (LSS).
Methods
The study subjects were 76 female patients who underwent spinal surgery for LSS between January and December 2006. Radiographs of thoracolumbar spine, hip and knee were taken. Osteoporotic profiles including lumbar and hip bone mineral density (BMD) measurements and proper treatment of osteoporosis were investigated.
Results
The mean age was 65.1 (50~86) years old. Seven-teen patients (22.4%) and nine-teen patients (25.0%) had spine and hip BMD below a T score of -2.5. Thirty-two patients (48.0%) and four patients (5.2%) had knee and hip OA of K-L grade III and IV each. Old thoracolumbar osteoporotic compression fractures were confirmed in 6 patients (7.8%). Forty-eight percent (48.0%) of enrolled patients had hypovitaminosis D. According to osteoporosis guidelines from the Korean Society of Bone Metabolism, 31 patients (40.7%) qualified to be candidates of intensive osteoporosis treatments.
Conclusion
The prevalence of osteoporosis and knee OA in LSS patients was 25.0% and 42.1%. Based on checking up BMD and knee OA in female patient with LSS, proper treatments of osteoporosis and degenerative knee OA should be considered.
Key Words: Knee osteoarthritis, Lumbar, Osteoporosis, Spinal stenosis
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