Effects of lateral-offset sole shoes on knee adduction moment in women with medial compartment knee osteoarthritis

Woo Young Jang, Hae Woon Jung, Gi Won Choi, Hyun Min Lee, Hae Soo Park, Soon Hyuck Lee

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    1 Citation (Scopus)

    Abstract

    This study aimed to determine the impact of wearing a lateral-offset sole shoe (LOSS) on knee adduction moment (KAM) in patients with medial knee osteoarthritis (OA). From December 2012 to November 2016, patients with medial knee OA were recruited. Ninety-three knees (50 left, 43 right) of 93 female patients were analyzed. The first peak KAMs were measured with patients (i) walking barefoot; (ii) walking in conventional shoes; and (iii) walking in LOSSs. The patients had grade 1 (n = 19), grade 2 (n = 49), grade 3 (n = 20), and grade 4 (n = 5) knee OA. First peak KAMs differed significantly in all three conditions (p = 0.031). In the post hoc analysis, first peak KAMs were significantly lower during LOSS walking than during conventional shoe walking (p = 0.001), but there were no differences in peak KAMs between barefoot and LOSS walking (p = 0.784). In the subgroup analysis, patients with grades 2 and 3 OA showed significantly lower first peak KAMs during LOSS walking than during conventional shoe walking (p = 0.029 and p = 0.011, respectively). Both the peak eversion ankle angle and moment of barefoot walking showed a significant increase compared with LOSS and conventional shoe walking, while there was no significant difference between LOSS and conventional shoe walking (p = 0.612 and p = 0.197, respectively). Our results suggest that LOSS wearing caused significant KAM reductions compared with conventional shoe wearing. Since LOSS wearing does not cause changes in the peak eversion ankle angle and moment during the load response, it may be an effective method to reduce the KAM in women with knee OA.

    Original languageEnglish
    Pages (from-to)1694-1700
    Number of pages7
    JournalJournal of Orthopaedic Research
    Volume36
    Issue number6
    DOIs
    Publication statusPublished - 2018 Jun

    Keywords

    • knee adduction moment
    • osteoarthritis
    • specialized shoes

    ASJC Scopus subject areas

    • Orthopedics and Sports Medicine

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