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Preliminary investigation of residual-limb fluid volume changes within one day

This study explores how daily activities and personal factors affect residual limb fluid volume in transtibial amputees, impacting prosthesis fit and skin health. Measurements were taken from 12 prosthesis users using bioimpedance analysis across various daily tasks. Results show fluid volume changes are influenced by activities, health complications, gender, time since amputation, and continuous prosthetic socket wear.

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Preliminary investigation of residual-limb fluid volume changes within one day

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  1. Preliminary investigation of residual-limb fluid volume changes within one day Joan E. Sanders, PhD; Katheryn J. Allyn, CPO; Daniel S. Harrison, BSEE; Timothy R. Myers, MME; Marcia A. Ciol, PhD; Elaine C. Tsai, MD, MPH

  2. Aim • Investigate rates of residual-limb fluid volume change within 1 d for people with transtibial limb loss. • Relevance • Large changes in residual-limb fluid volume may impact quality of prosthesis fit and prosthesis user’s skin health.

  3. Method • Using bioimpedance analysis, we measured residual limb volume on 12 regular prosthesis users: • 30 min test sessions of sitting, standing, and walking in both morning and afternoon. Electrode configuration for bioimpedance analysis.

  4. Results • Within sessions: • Rate of fluid volume change: –8.5 to 5.9 %/h. • Between sessions: • Rate of fluid volume change: –2.7 to 0.9 %/h. • Correlated highly with afternoon within-session rate. • Not well correlated with morning within-session rate. • Subjects with peripheral arterial complications: • Greater fluid volume loss rates within sessions than between.

  5. Conclusion • Rates of fluid volume change affected by: • Sitting, standing, and walking activities. • Presence of peripheral arterial complications. • Being female. • Time since amputation. • Wearing of prosthetic socket without doffing for extended periods.

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