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Knee Post-Fracture Intermediate Rehab

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

This 12-week intermediate program focuses on post-fracture rehabilitation for the knee, using resistance bands, BOSU balls, and pull-up bars to target ACL, PCL, MCL, and LCL injuries.

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
12
Sessions/week
4
Minutes/session
20
Evidence level
moderate
ICD-10
S83
Cost tier
moderate

Knee Post-Fracture Intermediate Rehabilitation Program — 12-Week Guide

This program is for people recovering from a knee fracture who have completed early rehabilitation and are ready to build strength, motion, and confidence. Over 12 weeks, with four short sessions per week, the goal is to restore comfortable knee movement, rebuild leg strength, improve balance and walking, and prepare you for everyday activities and higher-level function. It uses resistance bands, a BOSU ball, and a pull-up bar, and is designed to be done under the guidance of your physical therapist or clinician.

Before You Start

Only begin this program after your clinician has assessed your knee and cleared you to progress. Do not start if you have active compartment syndrome symptoms (severe, escalating pain, tightness, or numbness), limited range of motion that has not been assessed, a wound that has reopened or is not healing, or severe muscle wasting that needs medical review. Warm up before every session and avoid overloading the knee. Stop and contact your clinician if you notice sharp or increasing pain, new swelling, warmth, redness, numbness, or a feeling that the knee is giving way.

Weekly Structure

The plan runs 12 weeks with four sessions per week, each about 20 minutes, using your resistance band, BOSU ball, and pull-up bar. It moves through gentle phases: early protection and motion, then controlled movement and weight-bearing, then strengthening, and finally more advanced loading. Your therapist decides when you move to the next phase based on how your knee responds, not just the calendar. Sessions are short on purpose, so quality of movement matters more than quantity.

What a Typical Session Looks Like

Each session follows a simple pattern: a short warm-up to loosen the knee and get blood flowing, the main strengthening and movement work, then a cool-down. Warm-up might include gentle range-of-motion and easy band work. Main work uses the resistance band for controlled strengthening, the BOSU ball for balance and controlled loading, and the pull-up bar only as cleared for supported or upper-body work. Cool-down includes gentle stretching and quiet breathing. Keep effort comfortable and stop short of sharp pain.

Tracking Progress

Your therapist uses specific checkpoints, such as comfortable knee bending, full straightening, controlled swelling, and pain-free stability tests, to decide when you advance phases. These checkpoints replace guesswork, so you progress only when your knee is ready. Outcome measures like the IKDC, Lysholm, and KOOS questionnaires, single-leg hop distance, quadriceps strength testing, and goniometer range-of-motion measurements are repeated over time to show real change and guide your plan.

Recovery and Self-Care

Expect some soreness after activity, but it should settle with rest. Use ice or elevation as advised, keep the knee moving gently, and avoid overloading it on sore days. Do not push through sharp pain or increasing swelling. Seek urgent care for severe or worsening pain, marked swelling, fever, wound changes, or new numbness or weakness. Follow your clinician's advice on pain relief and activity rather than adjusting any medication yourself.

Recovery phases

Week 1Protection and Pain Control

Quadriceps activation with quadriceps setting exercises achieving full terminal extension,Patellar mobility maintained with superior-inferior and medial-lateral glides,Swelling controlled with effusion less than 10cc via stroke volume,MCL/LCL stress testing pain-free at 0-15 degrees flexion,Meniscus compression test negative for joint line pain,Cartilage load tolerance at minimal angles (0-15°) without pain

→ Advance to: Early Motion Phase

Week 2Early Motion Phase

Range of motion 0-45° flexion without patellofemoral pain,Quadriceps contraction achieving full quadriceps lag elimination,Hamstring activation with prone knee flexion to 45°,ACL/PCL graft protection with limited range at 0-60° flexion,Weight-bearing tolerance at 50% body weight with assistive device,Meniscus healing phase - avoid deep flexion loading

→ Advance to: Intermediate Motion Phase

Week 3Intermediate Motion Phase

Range of motion 0-75° flexion with normal patellar tracking,Quadriceps strength >40% of contralateral side via handheld dynamometry,MCL/LCL medial-lateral stability at 0 and 30 degrees,Full weight-bearing tolerance without assistive device in controlled environment,Cartilage loading progression to 0-90° with low-impact activities,Hamstring and quadriceps co-contraction at 15° of knee flexion

→ Advance to: Strengthening Phase

Week 4Strengthening Phase - Early

Range of motion 0-90° flexion with quadriceps control throughout,Quadriceps strength >50% of contralateral side,Patellar tendon loading tolerance without anterior knee pain,MCL/LCL valgus-varus stress test stable at 30 degrees,Meniscus loading progression with controlled squat to 45°,Cartilage tolerance for low-impact closed chain activities

→ Advance to: Advanced Strengthening

Week 5Advanced Strengthening

Range of motion 0-110° flexion equal to contralateral knee,Quadriceps strength >60% of contralateral side,Hamstring strength >65% of contralateral side,ACL/PCL functional stability during single-leg stance,Patellofemoral joint loading without crepitus or pain,Meniscus loading progression to 70° flexion during functional tasks

→ Advance to: Power Development

Week 6Power Development

Range of motion 0-120° with full extension equal to contralateral,Quadriceps power index >55% via isokinetic testing at 180°/sec,Hamstring power index >60% for hamstring-ACL co-contraction,MCL/LCL stability confirmed with functional movement patterns,Cartilage loading tolerance for moderate-impact activities,Patellar loading progression with resisted knee extension at multiple angles

→ Advance to: Sport Specific Phase

Week 7Sport Specific Phase - Early

Range of motion 0-125° with no quadriceps lag,Quadriceps strength >70% of contralateral side,Single leg squat to 45° without valgus collapse,Patellar tendon loading with plyometric progression initiation,ACL/PCL stability during direction change activities,Meniscus loading tolerance with pivoting movements at reduced speed

→ Advance to: Advanced Sport Specific

Week 8Advanced Sport Specific

Range of motion 0-130° equal to contralateral knee,Quadriceps strength >75% with isokinetic testing at 300°/sec,Hamstring to quadriceps ratio >60% for ACL protection,Single leg hop for distance >80% of contralateral side,Patellofemoral loading during high-impact plyometrics,Full meniscus loading during cutting and pivoting activities

→ Advance to: Return to Activity Preparation

Week 9Return to Activity Preparation

Quadriceps strength >80% of contralateral side,Single leg hop test >85% limb symmetry index,Patellar loading tolerance with sport-specific movements,ACL/PCL stability during reactive agility drills,Cartilage loading with high-impact sport simulation,MCL/LCL stability with sport-specific valgus-varus stresses

→ Advance to: Conditioning Phase

Week 10Conditioning Phase

Full range of motion 0-135° equal to contralateral knee,Quadriceps power >75% of contralateral side,Patellofemoral joint stability during repetitive loading,Hamstring endurance for prolonged activity,Meniscus loading with high-volume athletic tasks,Functional movement patterns without compensation

→ Advance to: Return to Sport Testing

Week 11Return to Sport Testing

Quadriceps strength >85% limb symmetry index,Hop battery test >90% limb symmetry index,ACL/PCL/MCL/LCL stability confirmed via functional tests,Patellar tracking normal during dynamic movements,Meniscus stress testing without symptoms,Sport-specific skill execution without pain or instability

→ Advance to: Full Return to Activity

Week 12Full Return to Activity

Quadriceps strength ≥90% of contralateral side,Full sport-specific range of motion without restrictions,Patellofemoral joint asymptomatic during all activities,All ligaments stable via Lachman, varus-valgus stress tests,Meniscus functional without mechanical symptoms,Cartilage tolerance for full athletic workload

→ Advance to: Maintenance Program

Return to activity milestones

Pain-free basic activities of daily living

Week 3

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

Light functional activities and conditioning

Week 5

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

Moderate activity and sport-specific conditioning

Week 7

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

Full return to sport, occupation, and recreation

Week 12

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

Precautions

  • avoid-overloading
  • warm-up-before

Contraindications

  • compartment-syndrome
  • limited-range-before-assessment
  • wound dehiscence
  • severe-muscle-atrophy

Pain management

Equipment & modalities

Aquatic therapy for early weight-bearing and range of motionElectrical stimulation for quadriceps neuromuscular activationManual therapy for patellar mobility and soft tissue restrictionGait training with progressive weight-bearing protocolProgressive resistance exercise with leg press and squat variationsresistance-bandbosu-ballpull-up-bar

Frequently asked questions

How hard should I push during sessions?
Keep effort at a level where you can move smoothly and talk comfortably, stopping before sharp pain. Mild tiredness is fine, but increasing pain or swelling means back off and check with your therapist.
What if my knee swells after exercise?
Some temporary swelling can happen, so use rest, ice, and elevation as advised and ease your next session. If swelling keeps returning or worsens, tell your clinician before continuing.
Can I skip ahead if I feel strong?
Progression depends on meeting your therapist's checkpoints, not just feeling good. Moving too fast can overload the healing bone and joint, so let your clinician confirm when you are ready for the next phase.

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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