Effectiveness of a lateral-wedge insole on knee varus torque in patients with knee osteoarthritis

被引:282
作者
Kerrigan, DC
Lelas, JL
Goggins, J
Merriman, GJ
Kaplan, RJ
Felson, DT
机构
[1] Univ Virginia, Sch Med, Dept Phys Med & Rehabil, Charlottesville, VA 22903 USA
[2] Harvard Univ, Sch Med, Dept Phys Med & Rehabil, Boston, MA USA
[3] Spaulding Rehabil Hosp, Ctr Rehabil Sci, Boston, MA USA
[4] Boston Univ, Sch Med, Ctr Arthritis, Boston, MA 02118 USA
来源
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION | 2002年 / 83卷 / 07期
关键词
biomechanics; gait; kinetics; knee; rehabilitation; shoes;
D O I
10.1053/apmr.2002.33225
中图分类号
R49 [康复医学];
学科分类号
100215 [康复医学与理疗学];
摘要
Objectives: To test whether a lateral-wedged insole, inclined at 5degrees or 10degrees, significantly reduces knee varus torque during walking in patients with knee osteoarthritis compared with both using no insole and with wearing nonwedged control insoles of the same material and average thickness. Design: Patients with medial knee osteoarthritis were studied while they walked wearing their comfortable shoes (1) without an insole; (2) with a 5degrees lateral wedge compared with a nonwedged, 3.175-mm (1/8-in) even-thickness control insole; and (3) with a 100 lateral wedge compared with a nonwedged 6.35-mm (1/4-in) even-thickness control insole. Setting: A gait laboratory with 3-dimensional motion analysis and force platform equipment. Participants: Fifteen patients with clinical and radiographic osteoarthritis of the medial compartment of 1 knee. Interventions: Not applicable. Main Outcome Measures: Peak external knee varus torques during the stance period of gait. Data regarding lower-extremity joint torques and motions were collected, and knee joint torques using the different insoles and wedges were compared by analysis of variance. Results: Although responses varied among individuals, as a group, both the 5degrees and 10degrees lateral-wedge insoles significantly reduced the knee varus torque during walking compared with walking with no insole and walking with nonwedged 3.175-mm and 6.35-mm control insoles Compared with no insole, the 5degrees wedge reduced the peak knee varus torque values by about 6% and the 10degrees wedge reduced the peaks by about 8%. Although there were no significant differences in speed of walking between the conditions, the 10degrees wedge and 6.35-mm control insoles were associated with varying degrees of discomfort. Conclusion: Both wedge insoles are effective in reducing the varus torque during walking beyond what theoretically could be explained by a reduced walking speed or cushioning effect from the insole. These data imply that wedged insoles are biomechanically effective and should reduce loading of the medial compartment in persons with medial knee osteoarthritis. Although the effect of the 5degrees wedge was smaller, it may be more comfortable than the 10degrees wedge to wear inside one's own shoes.
引用
收藏
页码:889 / 893
页数:5
相关论文
共 28 条
[1]
Lower limb alignment and foot angle are related to stance phase knee adduction in normal subjects: A critical analysis of the reliability of gait analysis data [J].
Andrews, M ;
Noyes, FR ;
Hewett, TE ;
Andriacchi, TP .
JOURNAL OF ORTHOPAEDIC RESEARCH, 1996, 14 (02) :289-295
[2]
ANDRIACCHI TP, 1994, ORTHOP CLIN N AM, V25, P395
[3]
[Anonymous], ARTHRITIS SURG
[4]
BRESLER B, 1950, T AM SOC MECH ENG, V72, P27
[5]
BUCKLANDWRIGHT C, 1995, OSTEOARTHR CARTILAGE, V3, P71
[6]
Detecting radiographic knee osteoarthritis: what combination of views is optimal? [J].
Chaisson, CE ;
Gale, DR ;
Gale, E ;
Kazis, L ;
Skinner, K ;
Felson, DT .
RHEUMATOLOGY, 2000, 39 (11) :1218-1221
[7]
Effects of lateral-wedged insoles on kinetics at the knee [J].
Crenshaw, SJ ;
Pollo, FE ;
Calton, EF .
CLINICAL ORTHOPAEDICS AND RELATED RESEARCH, 2000, (375) :185-192
[8]
Meniscal subluxation: association with osteoarthritis and joint space narrowing [J].
Gale, DR ;
Chaisson, CE ;
Totterman, SMS ;
Schwartz, RK ;
Gale, ME ;
Felson, D .
OSTEOARTHRITIS AND CARTILAGE, 1999, 7 (06) :526-532
[9]
DEFINING ARTHRITIS AND MEASURING FUNCTIONAL STATUS IN ELDERS - METHODOLOGICAL ISSUES IN THE STUDY OF DISEASE AND PHYSICAL-DISABILITY [J].
GUCCIONE, AA ;
FELSON, DT ;
ANDERSON, JJ .
AMERICAN JOURNAL OF PUBLIC HEALTH, 1990, 80 (08) :945-949
[10]
Hurwitz D E, 1999, Curr Opin Rheumatol, V11, P422, DOI 10.1097/00002281-199909000-00017