A comparison of radiographic anatomic axis knee alignment measurements and cross-sectional associations with knee osteoarthritis.

ABSTRACT:

Objective

Malalignment is associated with knee osteoarthritis (KOA), however, the optimal anatomic axis (AA) knee alignment measurement on a standard limb radiograph (SLR) is unknown. This study compares one-point (1P) and two-point (2P) AA methods using three knee joint centre locations and examines cross-sectional associations with symptomatic radiographic knee osteoarthritis (SRKOA), radiographic knee osteoarthritis (RKOA) and knee pain.

Methods

AA alignment was measured six different ways using the KneeMorf software on 1058 SLRs from 584 women in the Chingford Study. Cross-sectional associations with principal outcome SRKOA combined with greatest reproducibility determined the optimal 1P and 2P AA method. Appropriate varus/neutral/valgus alignment categories were establi

SUBMITTER: Goulston LM 

PROVIDER: S-EPMC4819520 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature