Correlation between weight-bearing asymmetry and bone mineral density in patients with bilateral knee osteoarthritis
| Autor: | Yutaro Morishige, Shu Kobayashi, Kohei Nishizawa, Takeo Nagura, Kengo Harato, Yasuo Niki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Male
musculoskeletal diseases medicine.medical_specialty lcsh:Diseases of the musculoskeletal system Knee Joint Radiography Extension deficit Osteoarthritis Weight-bearing asymmetry Weight-Bearing 03 medical and health sciences 0302 clinical medicine lcsh:Orthopedic surgery Bone Density medicine Bone mineral density Humans Orthopedics and Sports Medicine Gait analysis Standing Ground reaction force Gait Femoral neck Aged 030203 arthritis & rheumatology Orthodontics Bone mineral 030222 orthopedics business.industry Osteoarthritis Knee medicine.disease musculoskeletal system lcsh:RD701-811 medicine.anatomical_structure Orthopedic surgery Standing Position Surgery Female Knee osteoarthritis lcsh:RC925-935 business human activities Research Article |
| Zdroj: | Journal of Orthopaedic Surgery and Research, Vol 16, Iss 1, Pp 1-5 (2021) Journal of Orthopaedic Surgery and Research |
| Popis: | Background Although unloading of the joint is related to reduction of the local bone mineral density (BMD), little attention had been paid to the relationship between loading asymmetry and side-to-side difference of BMD in patients with bilateral knee osteoarthritis (OA). The aim of the present study was to evaluate and clarify the relationship between gait parameters and bone mineral density in those patients. Methods A total of 36 knees in eighteen patients (mean age = 73.7 ± 6.3 years, mean body mass index = 26.7 ± 3.8 kg/m2) with bilateral medial knee OA were enrolled in the present study. All subjects performed relaxed standing and level walking at our gait laboratory after informed consent was obtained. First, ground reaction force was calculated on bilateral knees during standing. The knees in each patient were divided into higher and lower force side for the definition of dominant side limb. Second, gait parameters in each subject were obtained. To analyze the factors that affect the weight-bearing distribution in both limbs, clinical data and biomechanical parameters were compared between knees. Clinical data included radiographic OA grade, femorotibial angle, and BMD at the bilateral femoral neck. Results Knees on higher force side were significantly more extended than on lower force side in standing (P = 0.012) and knee excursion during weight acceptance phase in gait was significantly larger in higher side than in lower side (P = 0.006), while the other parameters were not significantly different. As to the clinical data, higher force side had greater BMD, compared to lower force side. In terms of Kellgren–Lawrence scale and femorotibial angle on plain radiographs, there were no significant differences between higher and lower force side. Conclusions Based on loading asymmetry in the present study, lower BMD was observed on Lower force side in patients with knee OA. Therefore, it is helpful for orthopedic surgeons to examine side-to-side differences of bone mineral density or extension limitation during standing for evaluation of the loading condition in patients with bilateral knee OA. |
| Databáze: | OpenAIRE |
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