PURPOSE: To examine the correlation between bone mineral density (BMD) and radiographic changes in knee osteoarthritis (OA). MATERIALS AND METHODS: BMD of the lumbar spine and hip was measured, using dual x-ray energy absorptiometry, in 297 Korean women who visited our clinic with knee joint pain; anteroposterior weight bearing X-ray of the knees was also taken. Radiographic OA was defined as a Kellgren-Lawrence score of >or=2. The relationship between BMD and the radiographic changes of OA was examined using correlation and multiple regression analysis. RESULTS: Mean BMD was lower in subjects with knee OA (n=136) than in non OA subjects (n=161): Mean BMD in the lumbar spine, OA group was 0.863 +/-0.154 g/cm2 and in the non OA group 0.896 +/-0.131 g/cm2, and there was no significant correlation between the BMD of the spine and radiographic knee OA (r=-0.087, p=0.134). Mean BMD in the hip, OA group was 0.610 +/-0.135 g/cm2 and in the non OA group was 0.662+/-0.105 g/cm2, and the difference between the two groups was significant (r=-0.227, p<0.001). CONCLUSION: Hip BMD and radiographic knee OA were found to be negatively correlated, although the mechanism remains unclear. This result differs from that of a western study and further study is needed.
Bone Density* ; Female ; Hip ; Humans ; Knee Joint ; Knee* ; Osteoarthritis ; Osteoarthritis, Knee* ; Spine ; Weight-Bearing

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.
Bone Density ; Female ; Fractures, Compression ; Hip ; Humans ; Knee ; Osteoarthritis ; Osteoarthritis, Knee ; Osteoporosis ; Prevalence ; Spinal Stenosis ; Spine

OBJECTIVE: To investigate the kinematic and kinetic characteristics of stair ascent in patients with knee osteoarthritis. METHOD: Twenty patients with knee osteoarthritis and twenty healthy controls were recruited. The kinematic and kinetic data were obtained through a three dimensional motion analyzer. The kinematic and kinetic data during stair ascent were compared between two groups. RESULTS: The total required time of stair ascent was significantly longer in the osteoarthritis group than that of the control group (p<0.05). In comparison with the control group, the angle of maximal pelvis anterior tilting, minimal and maximal hip flexion and minimal knee flexion were significantly increased (p<0.05). However, the angle of knee flexion and ankle dorsiflexion at initial contact were significantly decreased in the osteoarthritis group (p<0.05). The maximal moment and power of knee extension and ankle plantarflexion were significantly decreased in the osteoarthritis group (p<0.05). Sixteen patients (80.0%) in the osteoarthritis group showed flexion arc after initial contact. "W" sign was shown in 16 patients (80.0%). CONCLUSION: We found the unique kinematic and kinetic patterns during stair ascent in patients with knee osteoarthritis, and that knee osteoarthritis influence not only kinematic and kinetic patterns of knee but also those of hip and ankle.
Ankle ; Hip ; Humans ; Knee* ; Osteoarthritis ; Osteoarthritis, Knee* ; Pelvis

No abstract available.
Acetaminophen ; Naproxen* ; Osteoarthritis* ; Osteoarthritis, Knee*

This paper evaluates the current state of work-related musculoskeletal disorders of Korean farmers. Korean farmers are exposed to a multitude of ergonomic risk factors, and have high rates of musculoskeletal disorders such as backpain and knee osteoarthritis, while hip osteoarthritis is relatively low. As of 2010, the average age of Korean farmers is 62.3, and the average period of their work in agriculture is 33.3 years. Therefore, it is difficult to distinguish the influence of natural aging and farm work on the development of musculoskeletal disorders. It is necessary to conduct research on a correlation between specific diagnosis such as rotator cuff syndrome, and farm work in general because farmers complain of a great deal of pain.
Aging ; Agriculture ; Back Pain ; Osteoarthritis, Hip ; Osteoarthritis, Knee ; Risk Factors ; Rotator Cuff

BACKGROUND: There are few reports on bone mineral density (BMD) changes of axial bones after total knee replacement (TKR) due to severe osteoarthritis (OA) of the knee joint and its results are controversial. The purpose of our study was to measure the BMD changes of hip and spine in patients receiving TKR due to severe OA and to identify clinical factors relating BMD changes. METHODS: Among 66 female patients above 65 years old who underwent TKR due to severe OA and checked preoperative BMD, 52 patients who checked 1 year follow up BMD were enrolled. We investigated the association of the BMD changes with bilaterality of operation, obesity, preoperative knee functional scores, bisphosphonate medication, and diagnosis of osteoporosis. RESULTS: We found no correlation between BMD changes and bilaterality of operation, obesity, preoperative knee functional scores and diagnosis of osteoporosis. Spine BMD increased in non-treatment and bisphosphonate treatment group but total hip BMD significantly increased in bisphosphonate treatment group. CONCLUSIONS: Bisphosphonate treatment for 1 year prevents early reduction of hip BMD just after TKR regardless osteoporosis diagnosis. We considered that the bisphosphonate medication would be beneficial to prevention of later hip fracture in elderly patient receiving TKR due to severe OA of knee joints.
Arthroplasty, Replacement, Knee* ; Bone Density* ; Diagnosis ; Female ; Follow-Up Studies ; Hip ; Humans ; Knee ; Knee Joint ; Obesity ; Osteoarthritis ; Osteoporosis ; Spine

No abstract available.
Knee Joint* ; Knee* ; Osteoarthritis*

No abstract available.
Knee ; Osteoarthritis, Knee ; Osteotomy

Objectives: 1) To translate and cross-culturally adapt the Knee Injury and Osteoarthritis Outcome Score (KOOS) into Filipino; 2) To validate the Filipino translation of KOOS using the Filipino Short-Form 36 Health Survey (SF-36) among patients with knee osteoarthritis (kOA) at a tertiary hospital. Methodology: A Filipino version of the KOOS was translated and cross-culturally adapted from the original English version and validated following standard guidelines. Adult Fiipino patients with knee osteoarthritis at the University of the Phiippines-Philippine General Hospital were asked to complete identical questionnaires containing the Filipino KOOS and Filipino SF-36, with re-test on the same patients after a median of 14 days. Reliability was assessed using Cronbach’s alpha and intraclass correlation coefficients (ICC); dimensionality using convergent and divergent construct validity. Results: The Filipino translation of the KOOS was administered to 30 patients with knee OA (kOA). Cronbach's α across the Filipino KOOS domains ranged from 0.71 to 0.89 suggesting good internal consistency. The reproducibility of measurements of all KOOS subscales by ICC ranged from 0.97 to 1.0. For convergent construct validity, there was moderate correlation between KOOS ADL (0.38, p =0.03) and knee-related QoL (0.42, p=0.02) by SF-36 Physical Functioning (PF). A strong correlation (0.51, p=0.003) was observed between KOOS sports and recreation domain with SF-36 PF. For divergent construct validity, there was weak correlation between KOOS pain (0.015, p=0.93) and symptoms (0.15, p=0.42) with SF 36 Social Functioning. Conclusion The Filipino version of the KOOS is a valid and reliable instrument to measure the different aspects of disability affecting quality of life of Filipino patients with kOA.
Osteoarthritis, Knee ; Knee Injuries

OBJECTIVE: To evaluate the association of ultrasonographic (US) findings of medial meniscus protrusion (MMP) with clinical and plain radiographic assessment in knee osteoarthritis (OA). METHOD: One hundred and twenty six knees of 63 patients were studied. The degree of protrusion for each knee of patients was measured during standing by US. Radiographs were examined in order to determine whether the participants had radiographic osteoarthritis, graded using the Kellgren-Lawrence (K-L) grade. Clinical assessment was performed by recording a visual analogue scale (VAS). Correlation was obtained between the difference of VAS and MMP in the same patient. Assessment of pain, stiffness, and disability were performed by comparison of K-WOMAC index and MMP in a patient. RESULTS: Mean protrusion (mean+/-S.D.) for knees with each K-L I, II, III, and IV grade were 0.27+/-0.52 cm, 0.38+/-0.60 cm, 0.55+/-0.76 cm, and 0.75+/-0.08 cm, respectively. The difference was significant (p<0.05). Significant correlation was observed between MMP and VAS in K-L grades II (p=0.002, r=0.500) and III (p=0.002, r=0.684), also between DeltaMMP and DeltaVAS (p=0.000, r=0.558). With the K-WOMAC index, MMP were correlated with pain and stiffness (p<0.01), but not with disability score. CONCLUSION: The degree of MMP measured by US is associated with K-L grade in knee OA patients. The degree of MMP can be a reliable indicator, like K-L grade, for radiological severity of knee OA. MMP has been correlated with VAS and with subscore of pain and stiffness, but not disability in the K-WOMAC index.
Humans ; Knee ; Menisci, Tibial ; Osteoarthritis ; Osteoarthritis, Knee