Hip Replacement Dislocation Prevention: From Home Setup to Getting In and Out of a Car

In the first weeks after total hip arthroplasty, using safe movement patterns and a well-prepared environment markedly reduces dislocation risk. This guide summarizes high-risk positions and safe alternatives for daily life, with notes for both posterior and anterior surgical approaches.

Movements and positions to avoid

Home setup: make it safe from day one

• Seat height: Keep knees below hip level; avoid very low chairs. Target seat height ≥45–50 cm.
• Toilet riser: Lowers dislocation risk and eases standing in the early weeks.
• Rugs & mats: Use non-slip backing; remove edge-curling mats that cause tripping.
• Bed: Avoid very low/soft beds; when side-lying for the first 6 weeks, place a pillow between the knees.
• Socks & shoes: Use a long-handled sock aid and shoehorn; don’t bend forward deeply.
• Turning indoors: Use small steps to turn the whole body; don’t twist the trunk over a fixed hip/foot.

Sitting and standing

Getting in and out of a car (step by step)

1. Raise and slide the seat back if possible.
2. Approach the seat with your back to the opening; sit first, then bring both legs together into the car.
3. For posterior approach, keep the knee from rising above the hip; use small steps to readjust position in tight spaces.
4. To exit: reverse the steps—legs out first, then turn your body and stand.

Stairs, picking objects up, common scenarios

• Stairs: Up: “good leg first”; Down: “operated leg first” (use the handrail).
• Picking from the floor: After posterior approach, use the “golfer’s reach” (operate leg extended back) or a reacher.
• Sleep: Supine or on the non-operated side with a pillow between knees.
• Sexual activity: For 6–8 weeks, avoid positions requiring deep flexion or combined risky rotations; choose pain-free, controlled positions.

Sport & exercise: when and what?

• Weeks 0–6: Walking progression, isometrics (abductors, quads); no deep flexion/twisting.
• Weeks 6–12: Low-impact cardio (walking, stationary bike, pool work as advised).
• >12 weeks: With surgeon approval, progressive resistance; high-impact contact sports are generally discouraged.

Implant & surgical variables

Dual mobility cups, larger heads, and accurate component positioning may reduce dislocation risk, but safe movement patterns remain essential. Neuromuscular control, cognition, and spinopelvic alignment also influence risk. Follow your surgeon’s individualized protocol.

Red flags (call your surgeon urgently)

• Sudden “giving way” sensation, sharp pain, visible deformity
• Inability to move the leg, new length discrepancy, marked external rotation
• High fever, intense redness, drainage from the wound