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Updated: Jun 5, 2026

Reverse Total Shoulder Arthroplasty
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Published on: July 5, 2011

Gait Analysis After Reverse Total Shoulder Arthroplasty.

Takahiro Maeda1, Hiroyasu Ikegami1, Shu Yoshizawa1

  • 1Department of Orthopedic Surgery, Toho University Medical Center, Ohashi Hospital, Tokyo, Japan.

JB & JS Open Access
|June 4, 2026
PubMed
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Reverse total shoulder arthroplasty (RTSA) improves trunk stability and gait efficiency in older adults. Patients showed better gait control and reduced trunk acceleration variability by 1-3 months post-surgery.

Area of Science:

  • Orthopedics
  • Biomechanics
  • Geriatrics

Background:

  • Shoulder pain significantly impacts mobility and quality of life in older adults.
  • Reverse total shoulder arthroplasty (RTSA) is effective for shoulder pain and function but its whole-body effects are less understood.
  • Investigating RTSA's impact on gait and trunk stability is crucial for comprehensive patient care.

Purpose of the Study:

  • To evaluate longitudinal changes in gait performance and trunk stability after RTSA.
  • To utilize triaxial accelerometer-based gait analysis for objective measurement.
  • To understand the relationship between shoulder function restoration and whole-body movement.

Main Methods:

  • Retrospective observational case series of 32 patients (mean age 77.5 years) undergoing RTSA.

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Last Updated: Jun 5, 2026

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  • Gait analysis using a triaxial accelerometer at the lumbar spine (pre-op, 1 week, 1 month, 3 months).
  • Assessment of temporal-spatial gait parameters and trunk acceleration indices (RMS, RMS*, SI) during normal and maximum-speed walking.

    • Main Results:

    • Significant decrease in trunk acceleration variability (RMS, RMS*) by 1 month (normal walking) and 3 months (max-speed walking).
    • Improvements in gait efficiency (stride length, walking time) observed by 1 month.
    • Significant postoperative improvements in walking speed, stride length, and trunk stability indices confirmed by mixed-effects models.

    Conclusions:

    • RTSA is associated with reduced trunk acceleration variability and improved gait efficiency.
    • Changes in gait and trunk stability emerge by 1-3 months post-RTSA.
    • RTSA may enhance whole-body gait control beyond restoring shoulder function.