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Intermediate Knee Tendon Repair Rehabilitation

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

A 18-week intermediate program using resistance bands, dip stations, hand exercisers, and wrist splints 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
tendon-repair
Level
intermediate
Duration
18
Sessions/week
3
Minutes/session
45
Evidence level
moderate
ICD-10
S83
Cost tier
moderate

Program Overview This is an 18-week, intermediate-level rehabilitation guide for people recovering from knee tendon repair surgery. It combines supervised strengthening, water-based exercise, balance work, blood flow restriction training, and sport-specific movement drills. The plan is built around three sessions per week, each lasting about 45 minutes.

Who This Program Is For and Its Goal This program suits patients past the earliest healing stage who are ready to rebuild knee strength, motion, and confidence under clinician guidance. The goal is to gradually restore full range of motion, strong quadriceps and hamstring function, safe walking, and balance, then progress toward sport-specific agility. It is not a substitute for individualized medical care.

Before You Start Confirm with your surgeon and physical therapist that you are ready for this level. Have your equipment ready: resistance bands, a dip station, a hand exerciser, and a wrist splint as directed. Review your home setup for safe space to move, and arrange transport for aquatic sessions if needed.

Safety Notes, Contraindications, and When to Stop Tell your clinician if you have or develop compartment syndrome—severe, worsening leg pain, tightness, or numbness—or wound dehiscence, where your surgical incision reopens or separates. Avoid overloading the knee, keep a neutral spine during exercise, and stop if pain increases. Seek prompt care for new swelling, fever, wound drainage, or calf pain.

Weekly Structure Plan on three sessions per week for 18 weeks, roughly 45 minutes each. Sessions blend strengthening with resistance bands and weights, aquatic therapy early on, balance drills, blood flow restriction work, and later agility and plyometric training. Rest days between sessions support recovery and healing.

How the 18-Week Plan Is Organized The plan moves through phases in plain language: a protection phase focused on healing, swelling control, and gentle motion; an early motion phase rebuilding range, walking, and muscle activation; then progressive strength and balance phases; and finally sport-specific agility and jumping work. Your therapist decides when you advance based on criteria, not the calendar alone.

What a Typical Session Looks Like Each session follows a warm-up, main work, and cool-down pattern. Warm-up may include easy walking, gentle range-of-motion drills, and light band work. Main work uses the dip station, bands, weights, or aquatic exercise plus balance drills. Cool-down includes gentle stretching and quiet breathing to settle the knee.

Warm-Up, Main Work, and Cool-Down Warm-up with easy movement and light resistance-band activation. Main work targets quadriceps and hamstring strength, balance on unstable surfaces, and graded blood flow restriction as directed by your clinician, using the dip station for supported movements and the hand exerciser and wrist splint only as your therapist prescribes. Cool-down with gentle stretching.

Tracking Progress Keep a simple log of sessions, pain levels, swelling, and what you accomplished. Bring it to visits. Your therapist will also use formal outcome measures such as the IKDC, Lysholm, KOOS, single leg hop test, strength testing, and Tegner scale to track recovery over time.

How Progression Criteria and Outcome Measures Are Used Your therapist uses specific criteria—such as controlled swelling, improved knee flexion, good quadriceps activation, and safe walking—to decide when you move between phases. Outcome measures add a broader picture of function and confidence. Progression is individual; never rush ahead based on the week number alone.

Recovery and Self-Care Prioritize sleep, balanced nutrition, and hydration. Use ice or elevation as your clinician advises for swelling. Follow any bracing or weight-bearing instructions. Build rest into your week, and avoid comparing your timeline to others—healing varies.

Pain Management Cautions and Red Flags Mild, settling soreness may be normal, but stop if pain increases during or after exercise. Do not push through sharp pain, new swelling, or a feeling of instability. Contact your clinician promptly for fever, wound changes, severe or worsening leg pain, numbness, or calf swelling.

Recovery phases

Week 1Protection Phase

Wound healing intact without signs of infection at surgical incisions,Passive knee flexion limited to 90 degrees with no pain at patellofemoral joint,Quadriceps activation visible with quadriceps setting exercise, no lag with straight leg raise,Non-weight bearing status with axillary crutches, weight bearing as tolerated on unaffected limb,No signs of ACL/PCL graft irritation with controlled passive motion,Swelling (effusion) controlled with grade 1 or less on stroke test

→ Advance to: Phase II - Early Motion

Week 2Protection Phase

Knee flexion improved to 100 degrees with minimal pain at tibial plateau,Extension lag less than 5 degrees with quadriceps contraction,MCL/LCL medial-lateral stability maintained with valgus/varus stress testing,Patellar mobility adequate with superior-inferior glide within normal limits,Hamstring contraction palpable at popliteal fossa without pain,Single crutch ambulation achieved with decreased weight bearing on affected side

→ Advance to: Phase II - Early Motion

Week 3Early Motion Phase

Active knee flexion 110 degrees with quadriceps control through range,Full knee extension achieved (0 degrees) with heel prop tolerance,Weight bearing progressed to weight bearing as tolerated with crutches,Patellar tendon tension acceptable with resisted knee extension,Meniscus repair protection with limited knee flexion torque in weight bearing,Quadriceps strength grade 3/5 with isometrics

→ Advance to: Phase III - Strengthening

Week 4Early Motion Phase

Passive knee flexion 120 degrees with comfortable soft tissue end feel,Gait pattern normalized with progression to single cane when quadriceps control adequate,No pivot shift evidence with ACL/PCL protection during ambulation,Cartilage stress minimized with low-impact activities only,Hamstring strength improved to grade 3/5 with resisted flexion,Single leg stance balance maintained for 10 seconds with minimal assistance

→ Advance to: Phase III - Strengthening

Week 5Strengthening Phase

Knee flexion 125 degrees with quadriceps power through mid-range,Active knee extension to 0 degrees without extension lag,Weight bearing full without assistive device, normal gait pattern,MCL/LCL stability confirmed with functional movements, no giving way,Quadriceps strength grade 4/5 with isokinetic testing at 60 deg/sec,Closed kinetic chain exercises initiated at 0-45 degrees knee flexion

→ Advance to: Phase IV - Advanced Strengthening

Week 6Strengthening Phase

Full knee range of motion achieved (0-135 degrees),Quadriceps strength 70% of contralateral side with isokinetic assessment,Patellofemoral tracking asymptomatic with functional movements,Hamstring strength 75% of contralateral side, co-contraction with quadriceps adequate,Meniscus loading tolerated with closed chain activities,Single leg squat to 45 degrees knee flexion without compensation

→ Advance to: Phase IV - Advanced Strengthening

Week 7Advanced Strengthening Phase

Quadriceps strength 80% of contralateral side with peak torque measurement,Hop testing initiated with double leg hop for distance,Patellar tendon loading progressed with resisted knee extension,ACL/PCL graft maturation phase with controlled rotational movements,Proprioception training completed with eyes closed balance tasks,Iliotibial band flexibility maintained with stretching protocol

→ Advance to: Phase V - Return to Activity

Week 8Advanced Strengthening Phase

Single leg hop for distance greater than 85% of contralateral side,Knee flexion strength symmetrical with 85% limb symmetry index,Hamstring curl strength equal to contralateral side at all velocities,Meniscus functional loading test passed without symptoms,Popliteal fossa and posterior knee pain-free with full range motion,Functional movement pattern normalized with cutting and pivoting avoidance

→ Advance to: Phase V - Return to Activity

Week 9Return to Activity Phase

Quadriceps endurance testing within 90% of contralateral side,Agility training initiated with progressive complexity, no pivoting,Single leg vertical hop test greater than 85% limb symmetry,Patellofemoral joint loading tolerance with sport-specific movements,Gastrocnemius/soleus flexibility adequate for athletic movements,Return to jogging progressed to 50% speed with normal gait pattern

→ Advance to: Phase V - Return to Activity

Week 10Return to Activity Phase

Single leg hop for time within 90% of contralateral side,Cutting maneuvers introduced at 50% speed without instability,Quadriceps power output normalized with isokinetic testing at 180 deg/sec,LCL/PLC stability confirmed with reverse pivot shift test negative,Sport-specific skill progression without limitations,Subjective knee score (IKDC) within 85% of pre-injury baseline

→ Advance to: Phase VI - Return to Sport

Week 11Return to Sport Phase

Running progression to 75% maximum speed without pain,Agility drills with 90-degree cuts initiated without compensation,Patellar stability confirmed with apprehension test negative,Meniscus stress test negative with full squat activities,Lysholm knee score greater than 90 points,Proprioception 100% of contralateral side with balance testing

→ Advance to: Phase VI - Return to Sport

Week 12Return to Sport Phase

Full-speed running achieved without mechanical symptoms,Cutting and pivoting at full speed without giving way,Quadriceps strength 95% of contralateral side with isokinetic testing,Functional movement screening completed with scores indicating return to sport,Patient subjective readiness for progressive return to sport activities,No effusion with high-intensity activities

→ Advance to: Phase VI - Return to Sport

Week 13Return to Sport Phase

Sport-specific training initiated with controlled contact drills,Hop test battery with limb symmetry index greater than 90%,Hamstring to quadriceps ratio normalized at 60-70% for knee stability,Patellofemoral symptoms absent with jumping and landing activities,ACL/PCL stability confirmed with Lachman and pivot shift grades 0-1+,Return to training with non-contact sports permitted

→ Advance to: Phase VI - Return to Sport

Week 14Return to Sport Phase

Full practice participation with non-contact drills completed,Knee outcome survey (KOOS) sport/recreation subscale greater than 90%,Single leg landing control without valgus collapse at knee,Quadriceps fatigue resistance adequate for sport duration,Meniscus functional test passed with cutting and decelerating activities,Psychological readiness confirmed with ACL-RSI score within normal limits

→ Advance to: Phase VI - Return to Sport

Week 15Return to Sport Phase

Full-contact practice participation achieved,LCL/PLC stability confirmed with dial test less than 10 degrees difference,Patellar tracking optimized with closed chain loading activities,Gastrocnemius power adequate for sprinting and jumping,Return to competition clearance for non-contact sports,No activity-related swelling (effusion) 24 hours post-activity

→ Advance to: Phase VI - Return to Sport

Week 16Return to Sport Phase

Progressive return to sport with competitive play initiated,Functional knee brace consideration evaluated for high-risk activities,Quadriceps peak torque symmetry greater than 95% at all velocities,Hamstring endurance sufficient for repeated sprint activities,IKDC subjective knee form score greater than 90 points,Maintenance program established for long-term knee health

→ Advance to: Phase VI - Return to Sport

Week 17Return to Sport Phase

Full return to sport competition without restrictions,Landing mechanics optimized with less than 15 degrees knee valgus,Patellofemoral joint load tolerance with high-impact activities,Proprioceptive training transitioned to maintenance phase,Strength training progressed to sport-specific resistance exercises,Follow-up examination confirming knee stability and function

→ Advance to: Phase VI - Return to Sport

Week 18Return to Sport Phase

Final functional testing passed with all parameters within normal limits,Patient discharged to independent maintenance program,Quadriceps and hamstring strength symmetry greater than 95%,Return to sport guidelines provided with gradual progression,Long-term bracing decision individualized based on sport and stability,Six-month follow-up scheduled for outcome assessment and progression review

→ Advance to: Discharge to Maintenance

Return to activity milestones

Pain-free basic activities of daily living

Week 5

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

Light functional activities and conditioning

Week 8

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

Moderate activity and sport-specific conditioning

Week 10

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

Full return to sport, occupation, and recreation

Week 18

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

Precautions

  • avoid-overloading
  • maintain-neutral-spine
  • stop-if-pain-increases

Contraindications

  • compartment-syndrome
  • wound dehiscence

Pain management

Equipment & modalities

Progressive resistance exercise with weight machines and free weightsAquatic therapy for early weight bearing and range of motionBalance and proprioception training on unstable surfacesBlood flow restriction training for quadriceps strengtheningSport-specific agility and plyometric trainingresistance-banddip-stationhand-exerciserwrist-splint

Frequently asked questions

How much soreness is normal after sessions?
Mild soreness that settles within a day or so can be expected, but increasing or sharp pain means you should ease off and check with your therapist. Never push through pain to finish a session.
Can I skip the aquatic sessions?
Aquatic therapy helps early weight bearing and motion, so follow your therapist's guidance on whether it is essential for you. If access is difficult, ask about safe alternatives.
When can I return to sport?
Return to sport depends on meeting strength, balance, hop-test, and agility criteria, not just finishing 18 weeks. Your clinician will clear you when your knee is 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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