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Intermediate Knee Post-Fracture Rehabilitation

Published: July 26, 2026Updated: October 6, 2026

A 15-week intermediate program using balance boards, and cable machines to aid in the recovery process.

Quick summary

Professional rehabilitation program designed for effective recovery and pain management.

Medically reviewed by WellAlly Editorial TeamLast reviewed October 6, 2026Editorial policy

Key facts at a glance

Body part
lower-limb · knee
Injury type
post-fracture
Level
intermediate
Duration
15
Sessions/week
2
Minutes/session
20
Evidence level
moderate
ICD-10
S83
Cost tier
moderate

Program Overview This is a 15-week, intermediate-level rehabilitation guide for someone recovering from a knee fracture. It combines supervised strengthening, balance, and mobility work to help you rebuild function safely and steadily.

Who This Program Is For and Its Goal This program is for people past the early healing stage of a knee fracture who can bear weight and want to regain strength, balance, and confident movement. The goal is to progressively restore knee function through structured exercise while protecting the healing bone and joint. It works best when guided by your physical therapist, who can tailor each step to your body.

Before You Start Clear this program with your treating clinician first. If you have active inflammation—new swelling, heat, or sharp pain—pause and check in before continuing, since exercise during a flare can set you back. Make sure your equipment is set up safely and that someone can help you with balance work if needed.

Safety Notes Keep your spine in a neutral, comfortable position during all exercises, especially on the cable machine and balance board. Stop any activity if pain increases, and always finish with a cool-down. Never push through sharp pain, new swelling, locking, or a knee that gives way. Contact your clinician promptly if these occur, or if you notice warmth, redness, fever, or worsening symptoms.

Weekly Structure You'll do two sessions per week, about 20 minutes each, across 15 weeks. The plan moves through four phases—protection, early mobility, strengthening, and advanced function—with your clinician deciding when you're ready for the next phase based on how you're progressing.

How the 15-Week Plan Is Organized Each session is short and focused, so consistency matters more than volume. Early weeks emphasize gentle motion and muscle activation; middle weeks build strength with closed-chain and open-chain exercises plus cable-machine work; later weeks add balance-board and sport-specific challenges. Your therapist may include electrical stimulation, hands-on joint and soft-tissue work, or low-load strengthening with blood-flow restriction—all supervised—depending on your needs.

What a Typical Session Looks Like Expect a predictable rhythm: warm-up, main exercises, then cool-down. This helps your knee adapt safely and keeps each 20-minute session efficient.

Warm-Up, Main Work, Cool-Down Start with gentle motion and easy muscle-setting to wake up the knee. Main work may include squats, leg press, quad sets, and hamstring curls, plus cable-machine resistance, balance-board practice, and supervised modalities your therapist selects. Cool down with light movement and stretching to settle the knee. Your therapist adjusts specific exercises and effort to your phase and tolerance.

Tracking Progress Your therapist will record how you feel, your knee motion, swelling, and strength, along with balance and function. Standard questionnaires and strength tests help show change over time. Bring any home notes about pain or difficulty to each visit so your plan stays accurate.

How Progression Criteria Are Used You move to the next phase when you meet the goals your clinician sets—such as comfortable motion, controlled swelling, and adequate strength and balance—not simply because time has passed. Outcome measures like strength ratios, balance tests, and knee questionnaires track your trajectory and guide safe advancement.

Recovery and Self-Care Rest, elevation, and gentle movement between sessions support healing. Follow your clinician's guidance on activity and avoid adding new exercises on your own. Keep cool-downs consistent, stay hydrated, and pace yourself—steady progress beats pushing hard.

Pain Management Cautions and Red Flags Mild soreness that settles is common; sharp or rising pain is not. Avoid medications or supplements without asking your clinician. Seek prompt care for sudden severe pain, marked new swelling, inability to bear weight, fever, or a knee that locks or gives way.

Recovery phases

Week 1Phase I: Acute Protection

Pain level ≤3/10 at rest with verbal numerical rating scale,Knee joint effusion minimal to none (trace or 1+ on stroke test),Quadriceps activation present with quadriceps lag test <15 degrees,Knee ROM: passive flexion ≥60° with minimal discomfort,MCL/LCL medial-lateral knee stability within 5mm varus/valgus stress,Weight-bearing tolerance ≥25% body weight with assistive device

→ Advance to: Phase II

Week 4Phase II: Early Mobility

Knee ROM: passive flexion ≥90°, extension 0° (or within 5° of opposite knee),Patellar mobility adequate (superior-inferior glide 2/4, medial-lateral 2/4),Quadriceps strength ≥3/5 on manual muscle testing,Hamstring contraction present with resisted knee flexion,Weight-bearing progressed to full weight-bearing with normal gait pattern,Cartilage protection: low-impact activities only, no pivoting

→ Advance to: Phase III

Week 8Phase III: Strengthening

Knee ROM: full flexion ≥125°, full extension 0°,Quadriceps strength ≥4/5 with isokinetic testing at 60°/sec,Hamstring strength ≥80% of contralateral side,Meniscus status: no mechanical symptoms (locking, clicking) with squat activities,ACL/PCL graft maturation: progressing to controlled directional exercises,Knee proprioception: single-leg stance ≥30 seconds with eyes closed

→ Advance to: Phase IV

Week 12Phase IV: Advanced Functional

Quadriceps strength ≥90% contralateral side on isokinetic testing,Knee stability: Lachman test <3mm, pivot shift negative,Single-leg hop for distance ≥90% contralateral limb,Patellar tendon: no tenderness with resisted knee extension,Functional movement patterns without compensation (squat, step-down),Return to activity progression: running progression 0-100% speed

→ Advance to: Discharge/Maintenance

Return to activity milestones

Pain-free basic activities of daily living

Week 4

Weight-bearing tolerance increased by ≥ 25% from previous baseline

Light functional activities and conditioning

Week 6

Able to ascend and descend 4 stairs with reciprocal pattern, no rail

Moderate activity and sport-specific conditioning

Week 9

Pain ≤ 3/10 during and after weight-bearing functional activities

Full return to sport, occupation, and recreation

Week 15

Able to ascend and descend 4 stairs with reciprocal pattern, no rail

Precautions

  • maintain-neutral-spine
  • stop-if-pain-increases
  • cool-down-after

Contraindications

  • acute-inflammation

Pain management

Equipment & modalities

Therapeutic exercise: closed-chain (squats, leg press) and open-chain (quad sets, hamstring curls)Neuromuscular electrical stimulation (NMES) to quadriceps for activationManual therapy: patellar mobilization, soft tissue work to quadriceps/hamstringsBlood flow restriction training for quadriceps strengthening at low loadsBalance and proprioception training: BOSU, perturbation, sport-specific drillsbalance-boardcable-machine

Frequently asked questions

Can I exercise on days I feel swollen?
Mild swelling may be fine with your clinician's okay, but active inflammation means pausing and checking in. Let your therapist know so your session can be adjusted.
Why is my program only 20 minutes twice a week?
Short, frequent sessions protect the healing knee while building strength gradually. Quality and consistency matter more than long workouts at this stage.
When can I return to sports or running?
Return depends on meeting strength, balance, and stability goals your clinician assesses, not a calendar date. Your therapist will guide a gradual running and activity progression when you're ready.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed October 6, 2026. · Read our editorial policy

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