Anatomic correlates of reduced hip extension during walking in individuals with mild-moderate radiographic hip osteoarthritis

Deepak Kumar, Cory Wyatt, Ko Chiba, Sonia Lee, Lorenzo Nardo, Thomas M. Link, Sharmila Majumdar, Richard B. Souza

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

To identify radiographic and MR features of hip osteoarthritis (OA) related to reduced hip extension during walking. Sixty six subjects, were stratified into those with (n = 36, KL = 2, 3) and without (n = 30, KL = 0, 1) radiographic hip OA. Cartilage and labrum lesions were graded semi-quantitatively on hip MRI. Alpha angle and lateral center edge (LCE) angle were measured. Sagittal kinematics and kinetics were calculated during walking at speed of 1.35 m/s using 3-D motion capture. All subjects completed Hip disability and Osteoarthritis Outcome Score (HOOS), timed up and go, and 6 min walk tests. Variables were compared between the two groups using one-way ANOVA (adjusting for age). Correlations of radiographic and MR parameters with peak hip extension were calculated. The OA group was older, had greater pain, and limitation of function. They also had lower peak hip extension and higher peak hip flexion; and worse acetabular and femoral cartilage lesions. Peak hip extension and flexion correlated with KL grade, cartilage lesions in the inferior and posterior femur. Reduced hip extension and greater hip flexion during walking are present in high functioning (HOOS > 85%) individuals with mild-moderate hip OA, and are associated with cartilage lesions.

Original languageEnglish (US)
Pages (from-to)527-534
Number of pages8
JournalJournal of Orthopaedic Research
Volume33
Issue number4
DOIs
StatePublished - Jan 1 2015
Externally publishedYes

Keywords

  • 6 minute walk test
  • cartilage
  • gait
  • HOOS
  • Labrum

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Fingerprint Dive into the research topics of 'Anatomic correlates of reduced hip extension during walking in individuals with mild-moderate radiographic hip osteoarthritis'. Together they form a unique fingerprint.

  • Cite this