Total Joint Replacement — Total Knee Arthroplasty (TKA)

Massachusetts General Hospital · MGH Sports Medicine

Weight-Bearing

Per surgeon's instructions; commonly WBAT

Key Restrictions

Avoid deep squats, pivoting, impact activity; limit ambulation to 700 steps/day initially; no pillow/towel roll under knee; avoid twisting/pivoting; limit prolonged sitting/standing

Timeline & Phases

5 phases: Phase I (0-7 days), Phase II (1-4 wks), Phase III (4-8 wks), Phase IV (8-12 wks), Phase V (3-6 months)

Notes

ROM goals: >70 deg flex Phase I, >90 Phase II, >110 Phase III, >120 Phase IV; NMES parameters specified; criterion-based with strength LSI targets (>=80%); includes references. [Archived copy — original Massachusetts General Hospital URL retired in the Mass General Brigham site migration; Wayback snapshot 2026-08-01.]

Surgeon / Author

MGH Sports Medicine