What is the appropriate rehabilitation protocol for a Lisfranc injury after six weeks of boot immobilization and surgeon clearance for partial weight‑bearing?

Rehabilitation Protocol for Lisfranc Injury After 6 Weeks Boot Immobilization

After surgeon clearance for partial weight-bearing at 6 weeks post-boot immobilization, begin progressive weight-bearing in an arch support with transition to full weight-bearing by 12 weeks, incorporating early range of motion exercises, progressive strengthening starting with closed kinetic chain exercises, and proprioceptive training to achieve return to full activity by 12-16 weeks from initial injury.

Weight-Bearing Progression

Start partial progressive weight-bearing immediately upon clearance (week 6), using an arch support or walker boot. The evidence from low-energy Lisfranc injuries treated with percutaneous fixation demonstrates that early weight-bearing at 3 weeks post-surgery is safe and effective 1. Since you're already at 6 weeks post-immobilization, you can progress more aggressively:

• Weeks 6-8: Partial weight-bearing (25-50%) with arch support
• Weeks 8-10: Progressive weight-bearing (50-75%)
• Weeks 10-12: Advance to full weight-bearing as tolerated
• Week 12+: Full weight-bearing without assistive devices

This timeline aligns with surgical protocols showing patients can safely bear weight as tolerated after initial protection 2, 3.

Range of Motion and Mobilization

Begin immediate mobilization exercises focusing on ankle and midfoot motion. Early mobilization improves range of motion without compromising stability, similar to principles demonstrated in other lower extremity injuries 4:

• Ankle pumps and circles: Start immediately, 3-4 sets of 20 repetitions daily
• Towel stretches: Gentle dorsiflexion/plantarflexion stretching
• Midfoot mobility: Gentle inversion/eversion within pain-free range
• Avoid forced dorsiflexion that loads the Lisfranc joint excessively in early phases

Strengthening Protocol

Initiate strengthening with closed kinetic chain exercises, progressing to open chain and sport-specific activities. Based on ACL rehabilitation principles that translate well to lower extremity injuries 4:

Weeks 6-8 (Early Phase):

• Isometric exercises: Quadriceps sets, hamstring sets, calf isometrics
• Straight leg raises: All four planes
• Seated heel raises: Non-weight-bearing initially

Weeks 8-10 (Intermediate Phase):

• Closed kinetic chain exercises: Mini-squats (0-45°), leg press (if available)
• Standing heel raises: Progress from bilateral to unilateral
• Balance exercises: Single-leg stance on stable surface
• Resistance band exercises: Ankle strengthening in all planes

Weeks 10-12 (Advanced Phase):

• Progressive resistance training: Increase load on leg press and squats
• Eccentric strengthening: Eccentric heel drops, eccentric squats
• Dynamic balance: Single-leg stance on unstable surfaces (foam pad, wobble board)

Proprioceptive and Neuromuscular Training

Incorporate proprioceptive training early to address functional instability. Ankle sprain rehabilitation demonstrates that proprioception disturbances originate centrally and require specific retraining 5:

• Weeks 6-8: Static balance exercises, weight shifts
• Weeks 8-12: Dynamic balance, perturbation training
• Weeks 12+: Sport-specific agility drills

Return to Activity Timeline

Based on surgical outcomes in elite athletes 6 and functional progression protocols 7:

• Return to work (sedentary): 6-8 weeks from injury (you're already there)
• Return to work (physical labor): 12-16 weeks
• Return to recreational activities: 12-16 weeks
• Return to training for sports: 16-20 weeks
• Return to competitive sports: 21-31 weeks (longer for rugby/contact sports vs. soccer)

Athletes with bony injuries require approximately 4 weeks longer than purely ligamentous injuries 6.

Critical Monitoring Points

Watch for these red flags that require immediate surgeon consultation:

• Increasing midfoot pain with weight-bearing progression
• Visible arch collapse or deformity
• Inability to progress weight-bearing on schedule
• Development of lateral column pain (4th/5th metatarsal area)
• Persistent swelling beyond expected timeline

Functional Progression Criteria

Progress through phases only when meeting these objective criteria 7:

• Pain-free weight-bearing at current level
• No increase in swelling with activity
• Adequate strength (>70% of contralateral limb for advancement)
• Proper gait mechanics without compensations
• Successful completion of previous phase exercises

Common Pitfalls to Avoid

Do not rush weight-bearing progression - residual displacement >2mm significantly reduces outcomes 8. Even with anatomic reduction, premature loading can compromise healing.

Prioritize closed kinetic chain over open kinetic chain exercises initially - this reduces joint stress while building functional strength 4.

Do not neglect the lateral column - 4th and 5th tarsometatarsal joints require attention even if primary injury was medial 8.

Supervised therapy is superior to home-based alone 5 - ensure regular physical therapy visits, especially in early phases.

Expected Outcomes

With appropriate rehabilitation following this protocol, expect:

• Return to low-impact sports: 12-16 weeks
• Return to full activities: 16-24 weeks
• Return to competitive athletics: 21-31 weeks

Note that even with successful treatment, athletes may not reach pre-injury performance levels 8, making realistic goal-setting essential.