Knee Osteoarthritis Grade Does Not Correlate with Quadriceps Muscle Strength or Bone Properties of the Calcaneus in Men Aged 80 Years or More Who Can Walk Independently

被引：1

作者：

Ishii, Yoshinori ^{[1
]}

Noguchi, Hideo ^{[1
]}

Sato, Junko ^{[1
]}

Ishii, Hana ^{[2
]}

Ishii, Ryo ^{[3
]}

Toyabe, Shin-ichi ^{[4
]}

机构：

[1] Ishii Orthopaed & Rehabil Clin, 1089 Shimo Oshi, Saitama 3610037, Japan

[2] Kanazawa Med Univ, Sch Plast Surg, 1-1 Daigaku, Uchinada, Ishikawa 9200253, Japan

[3] Sado Gen Hosp, 161 Chikusa Sado, Niigata 9521209, Japan

[4] Niigata Univ, Grad Sch Med & Dent Sci, Crisis Management Off, Niigata Univ Hosp, 1 Asahimachi Dori Niigata, Niigata 9518520, Japan

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH | 2020年 / 17卷 / 05期

关键词：

bone properties of calcaneus; broadband ultrasound attenuation; Kellgren-Lawrence; knee osteoarthritis; quadriceps strength; MINERAL DENSITY; WEIGHT-BEARING; HIP FRACTURE; ULTRASOUND; QUALITY; RISK; ARTHROPLASTY; WEAKNESS; WOMEN; SEX;

D O I：

10.3390/ijerph17051709

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Purpose: Muscle weakness and bone deterioration in the elderly are related to falls and fractures, resulting in decreased mobility. Knee osteoarthritis also may contribute to falls and fractures and thereby affect mortality rates. The Kellgren-Lawrence (KL) classification is widely used in the radiographic evaluation of knee osteoarthritis. Aims: This study aimed to evaluate the quadriceps strength and bone properties of the calcaneus for each KL grade, and to clarify the impact of knee osteoarthritis grade on quadriceps strength and bone properties. Methods: This prospective cross-sectional study included data on 108 male patients (213 knees), aged >= 80 years, who could walk independently. A handheld dynamometer was used to measure quadriceps strength. Bone properties were evaluated using broadband ultrasound attenuation with a portable bone densitometer. Weight-bearing standing knee radiographs were evaluated using KL classification. Quadriceps strength and bone properties were evaluated for each KL grade and the correlations between the grade and quadriceps strength and bone properties were assessed simultaneously. Results: The numbers of participants in KL grades I-IV were 46, 102, 45, and 20, respectively. There were no differences among grades for either quadriceps strength or bone properties. Conclusions: Participants exhibited good quadriceps strength and bone properties regardless of their KL grade. Relatively high mechanical loading of muscle and bone incurred while walking independently, likely explaining this result. Clinically, this study demonstrated the absence of correlations between KL grade and quadriceps strength and bone properties, as was previously reported in studies showing the absence of a correlation between KL grade and pain.

引用

页数：8