So sánh phương pháp

	Thang đo Chức năng Chi dưới	Bảng đánh giá chủ quan về khớp gối của Ủy ban Tài liệu Khớp gối Quốc tế
Lĩnh vực	Y học thể thao	Y học thể thao
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1999	2001
Người khởi xướng	Jill M. Binkley, Paul W. Stratford, Sheila A. Lott, Duane L. Riddle	International Knee Documentation Committee (IKDC)
Loại	Patient self-report	Patient self-report
Công trình gốc	Binkley JM, Stratford PW, Lott SA, Riddle DL. The Lower Extremity Functional Scale (LEFS): scale development, measurement properties, and clinical application. Phys Ther. 1999;79(4):371-383.	Irrgang JJ, Anderson AF, Boyle JB, et al. Development and validation of the International Knee Documentation Committee Subjective Knee Form. Am J Sports Med. 2001;29(5):600-613.
Tên gọi khác	LEFS	IKDC, IKDC-SK
Liên quan	4	5
Tóm tắt	The Lower Extremity Functional Scale (LEFS) is a 20-item patient self-report instrument designed to assess functional limitations in individuals with lower extremity musculoskeletal disorders. Developed by Binkley, Stratford, Lott, and Riddle in 1999 and published in Physical Therapy, the LEFS provides a validated, general lower-extremity outcome measure applicable across diverse pathologies (knee, ankle, hip, foot injuries and conditions), making it particularly valuable in physical therapy and rehabilitation settings.	The IKDC Subjective Knee Form is an 18-item patient self-report instrument that measures knee function and symptoms in individuals with various knee conditions. Developed by the International Knee Documentation Committee in 2001 and published in the American Journal of Sports Medicine, it has become the gold standard for assessing knee-specific outcomes across diverse populations, from athletes returning to sport after anterior cruciate ligament injury to patients with osteoarthritis or meniscal pathology.