What does the surgery change?
It changes where a functioning tendon attaches so its muscle can perform a different job.
The goal is to replace a specific missing movement, not to restore every aspect of hand or arm function.
Hand, Wrist & Upper Extremity
Tendon Transfer – Upper Extremity
Upper-extremity tendon transfer surgery redirects a working muscle’s tendon to help restore a lost movement in the arm, wrist, or hand.
Who might be considered?
Someone with a lasting movement deficit and a suitable working muscle and tendon.
Joint flexibility, nerve recovery potential, tissue health, and ability to participate in therapy all affect suitability.
Is therapy part of treatment?
Yes. Protection and guided retraining are central to recovery.
You learn to use the transferred muscle for its new task while protecting the healing attachment.
01 · Overview
Restoring movement with a working tendon
A tendon connects muscle to bone. During a tendon transfer, the surgeon reroutes a tendon powered by a functioning muscle and attaches it in a new location. That muscle can then help perform a movement that has been lost.
Transfers may be considered for selected movement problems after nerve injury or certain neurological conditions. Depending on the deficit, the aim might be to improve wrist positioning, finger opening, thumb opposition, or grasp. A hand surgeon must assess whether the available donor muscle can safely take on that role.
This differs from tendon repair, which reconnects a damaged tendon, and from nerve surgery, which aims to restore nerve signals. A transfer changes the mechanics of movement; it does not by itself restore lost sensation. Hand reconstruction often includes a structured rehabilitation plan. [1]
- Main purpose
- Replace a specific lost movement
- Area treated
- Arm, wrist, hand, or thumb
- Anesthesia
- Regional or general, depending on the plan
- Recovery focus
- Protection, movement retraining, and strength
Why does joint flexibility matter?
A transferred tendon needs a joint that can move through the intended range. If stiffness prevents that motion, therapy or another procedure may be needed before or alongside the transfer.
Does moving a tendon sacrifice another function?
It changes the donor muscle’s original role. Surgeons choose a donor whose original task can usually be supported by other muscles, but reduced strength or a change in movement remains a tradeoff to discuss.
02 · Concerns & Goals
What brings people to a consultation
Losing a movement can change how you manage everyday tasks. A consultation explores what is limiting you and which functions matter most.
Difficulty lifting the wrist or fingers
Weak wrist or finger extension can make positioning the hand and releasing objects difficult. Selected transfers may help replace these movements.
Trouble using the thumb
Limited thumb opposition can interfere with buttons, keys, and holding small items. The surgeon will assess the thumb’s movement, sensation, and available donor muscles.
Weak grasp or pinch
A transfer may improve a particular part of grasp or pinch, but the benefit depends on the underlying condition and the function of the rest of the hand.
Uncertainty after nerve injury
Some nerves may still recover or be candidates for nerve surgery. Timing requires an assessment of the injury, recovery so far, and any testing needed.
03 · Options
How the approaches differ
The transfer is planned around the missing movement, not chosen from a standard menu. These are examples of functional goals your surgeon may evaluate.
Wrist extension transfer
Redirects a functioning tendon to help lift or stabilize the wrist.
How it worksA suitable donor tendon is attached to a wrist-extending tendon and adjusted for tension.
May suitSelected patients who cannot actively extend the wrist but have an appropriate donor and flexible joints.
Main tradeoffThe donor’s original action changes, and wrist control must be relearned.
Finger and thumb extension transfer
Aims to improve opening the hand or straightening the thumb.
How it worksOne or more functioning tendons are redirected to the tendons that produce the missing extension.
May suitSelected patients with persistent loss of finger or thumb extension.
Main tradeoffOpening may improve without restoring normal independent movement of every finger.
Thumb opposition transfer
Aims to help the thumb move across the palm toward the fingers.
How it worksA donor tendon is routed to create a more useful direction of pull on the thumb.
May suitSelected patients with loss of opposition, a mobile thumb, and an appropriate donor.
Main tradeoffThe new movement needs training, and pinch can remain limited by sensation or other muscle weakness.
Grasp or pinch reconstruction
Uses available muscle power to support a specific holding function.
How it worksA functioning tendon is redirected to help flex selected fingers or the thumb.
May suitSelected patients with major nerve-related weakness or paralysis and enough remaining muscle function.
Main tradeoffReconstruction may require staged procedures and may provide a targeted rather than fully natural grasp.
Hand reconstruction is individualized. Your plan may combine a tendon transfer with other procedures, and rehabilitation is part of the treatment. [1] [2].
Can several transfers be done together?
Sometimes. A surgeon may address more than one missing movement in one operation or use stages. Donor availability, tissue condition, and rehabilitation needs determine what is practical.
Is a tendon graft the same thing?
No. A graft supplies tendon tissue to bridge or reconstruct a gap; it does not supply a new working muscle. A transfer redirects the pull of an existing functioning muscle. A graft may occasionally be used as part of a transfer.
04 · Results
What may improve and what may remain
A targeted functional change
Success is usually measured by a useful movement or task.
- Set specific goals such as holding a cup, releasing an object, or managing fasteners.
- Normal strength, speed, and independent finger control may not be achievable.
Progress through retraining
The new tendon attachment does not automatically create a familiar movement.
- Therapy helps you activate the donor muscle for its new role.
- Improvement can continue over months as control and strength develop.
Benefits and remaining limits
A transfer may improve function without correcting the underlying condition.
- Numbness, joint disease, or weakness in other muscles can still limit use.
- Some people continue to need an orthosis, adaptations, or additional surgery.
Hand-surgery results depend on the condition treated and participation in rehabilitation. Further treatment may sometimes be needed. [2]
05 · Recovery
Planning your recovery
Recovery at a glance
- Stay after surgery
- Determined by Your Surgeon
- Initial recovery at home
- Varies by Individual
- Return to desk work
- Varies by Procedure and Work Activity
- Light daily activities
- Based on Individual Recovery
- Strenuous exercise
- Based on Surgeon Clearance
Returning to work does not mean fully healed. Follow your surgeon’s instructions; strenuous activity requires clearance.
Your recovery plan depends on the transfer, attachment strength, and any additional procedures. Follow your surgical team’s instructions; returning to work does not mean the tendon has fully healed.
Step 1 · Day of surgery
Treatment day
The hand or arm is usually protected in a splint or cast. Your team explains pain control, protection of a numb limb after a nerve block, and whether you can go home that day.
Step 2 · Early weeks
Protecting the attachment
Follow-up checks assess the wound and protective support. Your team specifies which joints may move and which must stay protected.
Step 3 · When cleared for guided motion
Learning the new movement
A hand therapist introduces the approved movements and helps retrain the donor muscle. Do not test the transfer’s strength before clearance.
Step 4 · Later weeks to months
Building useful function
Strengthening and task practice progress as healing allows. Heavy use may remain restricted after lighter activities become possible.
Planning everyday activities
ActivityGeneral planning contextWhat affects the plan
Desk workPlanning context: May be possible with one-handed tasks or workplace adjustments. [2]What affects it: Pain, protective splinting, typing demands, and whether the treated hand can be kept protected.
DrivingPlanning context: Wait for clearance and the ability to control the vehicle safely.What affects it: Splint restrictions, grip and reaction ability, and sedating pain medicine.
Lifting and manual workPlanning context: Usually require a later, individualized return. [2]What affects it: Attachment healing, load requirements, and progress with supervised strengthening.
Sports and exercisePlanning context: Choose only activities approved for your current recovery stage.What affects it: Risk of falling, gripping equipment, contact, or loading the operated arm.
Ask for activity limits in writing, including what your unaffected hand and arm may safely do.
Before your procedure
- Describe the daily tasks you most want to regain.
- Bring records of previous nerve or tendon surgery and relevant testing.
- Review all medicines and supplements; change them only as instructed.
- Discuss nicotine use and a plan to reduce healing risks.
- Arrange transportation and help with tasks that normally need both hands.
- Confirm access to hand therapy and understand the expected visit schedule.
Can I exercise the hand on my own?
Only within the program your surgeon and hand therapist prescribe. Too much force can damage the attachment, while too little approved movement can contribute to stiffness.
What can help with swelling?
Your team may recommend a particular elevation position or adjustments to activity. Ask your surgical team whether compresses are appropriate and exactly how to use them.
06 · Safety
Risks and what your clinician assesses
Temporary pain, swelling, bruising, stiffness, and reduced hand use are common after surgery. A cast or splint may limit daily tasks, and the transferred movement will need practice.
Infection or wound problems
The incision may become infected or heal slowly, sometimes requiring medication or further treatment.
Bleeding or blood collection
Bleeding beneath the skin can increase swelling and occasionally require treatment.
Nerve or vessel injury
Nearby structures can be injured, causing numbness, weakness, or circulation problems.
Scarring and stiffness
Scar tissue may restrict tendon glide or joint motion. Persistent pain, including complex regional pain syndrome, can occur.
Transfer failure or limited function
The attachment may stretch or rupture, or the transfer may not provide the intended movement. Donor weakness or revision surgery is possible.
Anesthesia and general surgical risks
Anesthesia reactions and other medical complications are possible. Your health history affects your individual risk.
Discuss these risks and your individual health history with your surgeon. [3]
What your clinician assesses
- The cause of weakness and whether nerve recovery remains possible.
- Donor muscle strength and the function that may be lost or changed.
- Joint flexibility, sensation, skin condition, and existing scars.
- Overall health and ability to protect the transfer and attend therapy.
07 · Costs
What makes up the Total Procedure & Care Cost
Compare written estimates for the same planned scope, including the number of transfers, any additional procedures, and rehabilitation. Insurance coverage and out-of-pocket costs depend on your plan and authorization requirements.
Surgeon
Surgical care
Surgeon services and the planned reconstruction.
Ask your surgeonAsk whether additional procedures, staged surgery, and postoperative visits are included.
Facility
Anesthesia and facility
Anesthesia services and operating facility charges.
Ask your surgeonConfirm separate bills, network status, and any charges associated with an overnight stay.
Supplies
Supplies and follow-up
Splints, casts, custom orthoses, hand therapy, and related follow-up care.
Ask your surgeonAsk about therapy visit limits, replacement supports, and separate rehabilitation costs.
TRC
Patient Services
Any separately listed care-coordination or administrative services.
Ask TRCAsk which services apply, whether they are optional, and whether they carry a separate charge.
Your written estimate should explain the services included, any separate charges, and payment terms.
08 · Questions
Common questions
Will a tendon transfer bring back feeling?
Not by itself. It redirects muscle power rather than restoring sensory nerves. Sensation needs a separate assessment and may continue to affect safe hand use.
Will my hand work normally afterward?
A transfer aims to improve selected functions, not guarantee normal hand use. Strength, coordination, sensation, and joint health influence the result.
Can a transfer be considered years after an injury?
Sometimes. Unlike some nerve reconstruction options, a transfer may remain possible long after an injury if suitable muscles and mobile joints remain. A surgeon must assess the individual situation.
What if I cannot attend regular therapy?
Tell your team before surgery. Reliable access to rehabilitation is important, and the plan may need to change if therapy or protection of the repair would be difficult.
0 consultation questions in your plan
View in My TRC workspaceMy Aesthetic Plan
Prepare for your consultation
Bring these to help your consultation:
- Agree on a specific functional goal and understand the donor tradeoff.
- Confirm the protection, therapy, and home-support plan.
- Obtain written activity limits, contact instructions, and cost details.
View My Aesthetic Plan
Choices stay in this visit until saving to your account completes. Nothing is sent to a clinician.
Sources
- [1]American Society of Plastic Surgeons — Hand SurgeryGeneral purposes of reconstructive hand surgery, treatment of tendon and nerve conditions, and individualized surgical care.
- [2]American Society of Plastic Surgeons — Hand Surgery RecoveryIndividual recovery instructions, protective dressings and splints, hand therapy, gradual recovery, possible additional treatment, and urgent evaluation for cardiopulmonary symptoms.
- [3]American Society of Plastic Surgeons — Hand Surgery Risks and SafetyGeneral hand-surgery risks including infection, bleeding, impaired healing, sensation changes, damage to deeper structures, persistent pain, anesthesia risks, and further surgery.
Photographs are illustrative scenes, not patients, staff, facilities or outcomes. This information does not replace a personal assessment by your treating clinician.