Patient activity after total hip arthroplasty declines with advancing age

Area of Science:

• Orthopedics and Sports Medicine
• Gerontology
• Rehabilitation Science

Background:

• Patient activity evaluation is critical for informed clinical decisions preceding total hip arthroplasty (THA).
• Understanding post-THA activity patterns in relation to age is essential for optimizing patient outcomes and rehabilitation strategies.

Purpose of the Study:

• To investigate the correlation between age progression and patient activity levels following THA.
• To quantify daily walking cycles in different age demographics after THA and identify influencing factors.

Main Methods:

• A cohort of 105 patients undergoing THA was analyzed across various age groups (by decade).
• Daily walking cycles were measured to assess patient activity levels.
• Statistical analysis explored relationships between activity, age, gender, body mass index (BMI), and intragroup variability.

Main Results:

• Patients averaged 6144 walking cycles per day post-THA, exceeding levels reported for individuals without arthroplasty.
• Activity peaked in the 50-59 age group, with a consistent decline observed in older age brackets.
• Female gender, advanced age, higher BMI, and obesity were associated with reduced step counts; significant intragroup variability (up to sixfold) was noted.

Conclusions:

• THA patients demonstrate high activity levels, suggesting significant functional benefits from the procedure.
• Activity levels decrease with advancing age and are negatively impacted by female gender, obesity, and higher BMI.
• Individualized preoperative assessment of patient activity, personal factors, and demands is recommended due to substantial variability in post-THA mobility.