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Knee Tendon Repair for Beginners

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

A 17-week program for beginners focusing on tendon repair in the knee, including ACL, PCL, MCL, and LCL injuries, utilizing a rower and wrist splint.

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
beginner
Duration
17
Sessions/week
2
Minutes/session
45
Evidence level
moderate
ICD-10
S83
Cost tier
moderate

Program Overview — Knee Tendon Repair, Beginner Level This 17-week guided rehabilitation program is designed for people recovering from knee tendon repair surgery who are new to structured exercise. It combines progressive strengthening, water-based therapy, electrical muscle stimulation, balance work, and gradual sport-style movement to help you rebuild strength and confidence in your knee.

Who This Program Is For and Its Goal This program suits beginners recovering from knee tendon repair who have been cleared by their surgeon or physical therapist to begin supervised rehabilitation. The goal is to protect the healing tendon early on, restore knee motion and quadriceps and hamstring strength, then build balance, coordination, and agility so you can return to everyday activities and, eventually, sport with less risk of re-injury.

Before You Start Please review this plan with your surgeon and physical therapist before beginning, and only start once you have their approval. Your care team will check your knee and confirm you are ready for each phase.

Safety Notes and When to Stop This program is not appropriate if you have been told you have compartment syndrome or a recent fracture, as these need separate medical management. Stop and call your clinician if pain keeps increasing, swelling worsens, you feel clicking or giving way, or you develop fever, redness, or wound problems. Keep a neutral spine during exercises, and never push through sharp or rising pain.

Weekly Structure You will do two sessions per week, about 45 minutes each, for 17 weeks. Expect a mix of land-based strengthening, pool sessions, and balance work.

How the 17-Week Plan Is Organized The plan moves through phases in plain steps: first protection and gentle motion, then early motion and gradual weight-bearing, then progressive strengthening, balance, and finally agility and jumping-style drills. Early weeks lean on water therapy and electrical stimulation to wake up the thigh muscle safely. Later weeks add rowing and controlled sport-style movements. Equipment includes a rower and wrist splint as directed by your clinician.

What a Typical Session Looks Like Each session follows a simple pattern: warm-up, main work, then cool-down. Your therapist will adjust the details to your knee.

Warm-Up, Main Work, and Cool-Down Begin with gentle movement and easy pool walking or light range-of-motion work to warm the knee. The main work includes progressive quadriceps and hamstring strengthening, electrical stimulation of the thigh muscle if prescribed, balance on unstable surfaces, and later rowing and agility drills. Finish with slow stretching and easy motion to cool down. Your wrist splint is used as your clinician advises during supported activities.

Tracking Progress Your clinician will use clear checkpoints to decide when you are ready to move to the next phase, such as improved knee bend, straighter leg raises, less swelling, and steadier walking. Outcome measures like the Lysholm and IKDC forms, hop tests, strength testing, and activity-level scales help track how you are doing over time. These guide decisions—they are not targets you must hit alone.

How Progression Criteria and Outcome Measures Work You advance to the next phase only when your clinician confirms you meet that phase's checkpoints, such as tolerated knee motion, minimal swelling, and good muscle activation. Outcome measures are used alongside these checkpoints to show your overall recovery and to catch problems early. Progress is individual, so do not rush ahead on your own.

Recovery and Self-Care Rest, good sleep, and steady nutrition support healing. Follow your clinician's guidance on icing, elevating, and activity pacing. Keep movements controlled and your spine neutral.

Pain Management Cautions and Red Flags Mild soreness that settles with rest is common, but stop if pain increases during or after exercise. Do not mask worsening pain with activity. Seek urgent care for sudden severe pain, marked swelling, calf pain, numbness, chest symptoms, or signs of infection such as fever or wound drainage. Ask your clinician before using any pain medication.

Recovery phases

Week 1Protection Phase

Pain at rest <3/10 on visual analog scale,Knee effusion minimal to moderate (circumference difference <2cm vs contralateral),Quadriceps activation with straight leg raise achieving full extension,Passive knee flexion 0-70 degrees tolerated,MCL/LCL medial-lateral stability maintained with varus/valgus stress test,Patella mobility 50% medial-lateral glide achieved

→ Advance to: Early Motion Phase

Week 3Protection Phase

Wound healing complete without signs of infection,Knee extension lag <5 degrees on active straight leg raise,Passive knee flexion 0-90 degrees achieved,Weight bearing as tolerated with assistive device tolerance,Hamstring contraction elicits palpable engagement,Cartilage protection with low-impact activities only

→ Advance to: Early Motion Phase

Week 5Early Motion Phase

Passive knee flexion 0-110 degrees achieved,Active knee extension within 5 degrees of neutral,Quadriceps strength grade 3/5 on manual muscle testing,No ACL/PCL graft laxity with Lachman test (compared to contralateral),Meniscus status stable with negative McMurray test,Patellar tendon healing on clinical assessment

→ Advance to: Strengthening Phase

Week 7Early Motion Phase

Full passive knee extension achieved,Passive knee flexion 0-125 degrees,Gait pattern normalized without assistive device in controlled environment,Quadriceps strength grade 3+/5,No joint line tenderness on meniscal examination,Cartilage loading tolerance with low-resistance cycling

→ Advance to: Strengthening Phase

Week 9Strengthening Phase

Full active knee range of motion 0-135 degrees,Quadriceps strength grade 4-/5 on isokinetic testing,Hamstring strength >70% of contralateral side,Single leg stance balance >30 seconds with eyes closed,MCL/LCL stability Grade 1+ on stress testing,Functional movement pattern restoration

→ Advance to: Advanced Strengthening

Week 11Strengthening Phase

Quadriceps strength >80% contralateral on isokinetic dynamometry,Hamstring strength >85% contralateral,Single leg hop for distance >80% contralateral,No ACL/PCL instability with pivot shift test negative,Meniscus functional with squat to 90 degrees pain-free,Patellofemoral tracking symmetrical

→ Advance to: Advanced Strengthening

Week 13Advanced Strengthening

Quadriceps strength >90% contralateral,Running progression initiated at 50% speed,Agility exercises without cutting or pivoting tolerated,Single leg vertical hop >80% contralateral,Proprioceptive balance score >85% contralateral,Cartilage loading progression to impact activities

→ Advance to: Return to Activity

Week 15Return to Activity

Full sport-specific movement patterns without compensation,Quadriceps index >95% contralateral on isokinetic testing,Functional hop battery >90% contralateral,No knee swelling with high-intensity activity,MCL/LCL stability maintained during dynamic movements,Patellofemoral symptoms absent with loading activities

→ Advance to: Return to Sport

Week 17Return to Sport

Passed return-to-sport functional battery testing,Quadriceps and hamstring symmetry >95%,No subjective knee instability reported,All previously listed structures (ACL, PCL, MCL, LCL, meniscus, cartilage, patella) clinically stable,Patient-reported outcome measures at pre-injury level,Sports-specific training completed without restrictions

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 7

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 17

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

Precautions

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

Contraindications

  • compartment-syndrome
  • recent-fracture

Pain management

Equipment & modalities

Progressive resistance exercise for quadriceps and hamstringsAquatic therapy for early weight-bearing and range of motionNeuromuscular electrical stimulation (NMES) for quadriceps recruitmentBalance and proprioceptive training on unstable surfacesSport-specific agility drills and plyometric progressionrowerwrist-splint

Frequently asked questions

Can I do extra sessions if I feel good?
Stick to the planned two sessions per week unless your clinician says otherwise, because recovery depends on rest as well as work. Adding sessions on your own can overload the healing tendon.
Why is water therapy used early on?
Pool work lets you move and bear weight with less strain on the knee while it heals. Your therapist will guide pool exercises to match your phase and comfort.
When can I return to sport?
Return to sport depends on meeting strength, balance, and hop-test checkpoints set by your clinician, not just on time passing. Your therapist will help decide when agility and jumping progressions are safe for you.

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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