What does surgery address?
Fingers joined from birth by skin, and sometimes by bone or other deeper structures.
The plan depends on which fingers are joined and whether their joints, tendons, nerves, and blood vessels are shared or different.
Hand, Wrist & Upper Extremity
Syndactyly Release / Reconstruction
Syndactyly release separates fingers joined by skin or deeper tissues, reconstructing the space between them to support hand growth and function.
When is surgery considered?
Often during early childhood, with timing tailored to the hand.
Joined fingers of different lengths may need earlier attention because they can affect each other's growth. Not every child needs the same schedule.
Is more than one operation possible?
Yes. Separation may be staged, and later revision is sometimes needed.
When several fingers are joined, separating both sides of one finger at once may put its blood supply at risk.
01 · Overview
Understanding syndactyly reconstruction
Syndactyly means that two or more fingers are joined. In simple syndactyly, the connection is mainly skin and soft tissue. Complex syndactyly includes joined bones; some hands also have additional differences in tendons, joints, nerves, or blood vessels. [1]
Release is more than cutting between the fingers. The surgeon creates a new web space and covers the separated surfaces with carefully arranged skin flaps. A skin graft may be needed when there is not enough local skin for safe coverage. [1]
This operation differs from trigger-finger release, which treats a tendon that catches, and from treatment of webbing caused by burns or injury. Your surgeon will assess the specific anatomy and discuss what separation could realistically achieve.
- Procedure type
- Reconstructive hand surgery
- Anesthesia
- Usually general anesthesia in children
- Skin coverage
- Local skin flaps, sometimes with a skin graft
- Follow-up
- Wound checks and monitoring as the hand grows
What do complete and incomplete syndactyly mean?
Complete syndactyly extends to the fingertips and may include a shared nail. Incomplete syndactyly joins only part of the fingers. These terms describe the extent of joining, not whether bones are connected.
Will imaging or genetic evaluation be needed?
X-rays can help show bone connections. If there are other physical differences or a relevant family history, the care team may recommend an evaluation for an associated condition.
02 · Concerns & Goals
What brings families to a consultation
You may be thinking about how your child's fingers will grow, move, or look. Adults with joined fingers or changes after earlier surgery may also seek advice.
Limited independent movement
Joined fingers may make grasping or using each finger separately harder, depending on the anatomy.
Uneven growth
Fingers of different lengths can pull on one another as they grow, sometimes contributing to bending or rotation.
Web-space appearance
Families may want to discuss finger separation, shared nails, and the appearance of the hand alongside functional goals.
Changes after earlier surgery
Scars can tighten, or the reconstructed web can extend forward as a child grows. These changes may warrant reassessment.
03 · Options
How the approaches differ
The surgeon chooses a reconstruction based on the skin available, deeper connections, circulation, and growth needs. These approaches may be combined rather than offered as interchangeable choices.
Local-flap release
Nearby skin is rearranged to separate the fingers and form the web.
How it worksPlanned incisions create skin flaps that cover the new web space and finger surfaces.
May suitSelected cases with enough local tissue for coverage without excessive tension.
Main tradeoffScars remain, and a graft may still be needed if skin coverage is insufficient.
Release with a skin graft
Skin from another site covers areas left open after separation.
How it worksLocal flaps form the web, while a graft supplies additional coverage along the fingers.
May suitCases where separation creates a skin shortage.
Main tradeoffThere is a donor-site scar, and grafted skin can differ in color, texture, or hair growth.
Complex reconstruction
Separation addresses joined bones or other deeper differences.
How it worksThe surgeon plans skin coverage together with any safe correction of bone or other structures.
May suitSelected complex cases after detailed examination and imaging.
Main tradeoffFull separation or independent movement may not be achievable without risking important structures.
Staged or revision reconstruction
Treatment is divided into operations or revisits a previous release.
How it worksDifferent web spaces are treated separately, or scar tightening and recurrent webbing are addressed later.
May suitMultiple joined fingers or a hand with growth-related changes after surgery.
Main tradeoffMore procedures mean additional anesthesia, recovery periods, and follow-up.
Protecting finger circulation and achieving durable skin coverage guide the surgical plan. The safest approach may differ between hands or even between web spaces in the same hand. [1].
Can surgery always avoid a skin graft?
No. Some releases can use local skin alone, but avoiding a graft should not come at the expense of tight closure or unsafe coverage. Ask why a graft is or is not recommended.
Can all joined fingers be separated at once?
Not always. When both sides of a finger are involved, the surgeon may stage separation to protect its blood supply. Complex anatomy can also limit how much separation is safe.
04 · Results
What may improve and what may remain
Function
Separation may allow more independent use of the fingers.
- The benefit depends on the joints, tendons, bones, and nerves present before surgery.
- Complex reconstruction may leave limits in motion, strength, or alignment.
Appearance
The fingers can look more separate, but scars and differences may remain.
- A reconstructed web space may not match an unaffected hand.
- Graft color, finger shape, and nail appearance can remain different.
Growth and durability
Results need to be assessed as the hand grows.
- Scars may tighten or the web may gradually extend toward the fingertips, called web creep.
- Some children need later revision; this does not automatically mean the original release failed.
Simple and complex syndactyly can have different outcomes. Ask your surgeon which goals are realistic for the specific fingers involved. [1]
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.
Recovery depends on the reconstruction, any graft, and the patient's age. A bulky dressing, splint, or cast often protects the hand initially. The surgical team's plan takes priority over general timelines.
Step 1 · Day of surgery
Treatment day
The team monitors comfort and finger circulation after anesthesia. Before discharge, caregivers receive instructions for protection, medicines, and urgent concerns.
Step 2 · First few weeks
Protected healing
Dressings or a cast protect incisions and any graft. The team determines when they are checked or removed and how to keep them clean and dry.
Step 3 · After wound review and clearance
Gradual hand use
Movement and daily activities increase according to healing. Hand therapy or splinting may be recommended for selected patients.
Step 4 · Following months and during growth
Growth and scar follow-up
Follow-up assesses motion, finger alignment, scar tightening, and the web space. Scar care begins only when the team says the skin is ready.
Planning everyday activities
ActivityGeneral planning contextWhat affects the plan
School or daycarePlanning context: Once comfort and supervision are adequateWhat affects it: Staff may need a plan to protect the dressing and restrict rough play.
BathingPlanning context: While a dressing, cast, or graft needs protectionWhat affects it: Ask how to keep the hand and any donor site dry and when washing is allowed.
Sports and playground usePlanning context: After the surgeon clears impact and grippingWhat affects it: Falls, climbing, and contact can strain healing skin even when discomfort has improved.
Work and driving for adultsPlanning context: Based on hand demands, protection, and medication useWhat affects it: Return to desk work does not mean complete healing. Driving requires safe hand control and clearance.
Ask for activity guidance that fits age, school, work, and the exact reconstruction. A comfortable hand is not necessarily ready for unrestricted use.
Before your procedure
- Bring any previous hand-surgery records and imaging.
- Discuss the patient's medical history, allergies, medicines, and supplements.
- Ask the anesthesia team for age-appropriate fasting and medication instructions.
- Arrange transportation and a caregiver who can help protect the hand.
- Plan school, daycare, or work accommodations around the expected restrictions.
- Confirm follow-up appointments and who to call about dressing or circulation concerns.
Will hand therapy be needed?
Not everyone needs formal therapy. The surgeon may recommend it for stiffness, complex reconstruction, or difficulty returning to hand use. Do not start stretching or splint changes without guidance.
What if a child pulls at the dressing?
Ask the team how to protect it safely. Contact them if it becomes loose, wet, dirty, or displaced rather than removing or tightening it yourself.
06 · Safety
Risks and what your clinician assesses
Temporary swelling, soreness, and reduced hand use are common. The hand may look different after dressing removal, and scars change over time. Worsening pain or changes in finger color or warmth need prompt attention.
Bleeding or infection
Bleeding, fluid collection, or infection may require additional treatment and can delay healing.
Skin or graft healing problems
Wounds can separate, and a skin flap or graft may not fully survive. Further wound care or surgery may be necessary.
Circulation or nerve injury
Damage to blood vessels or nerves can affect finger survival, sensation, or function. Complex anatomy may increase these concerns.
Scar tightening or web creep
Scars can pull on the fingers, or the web can extend forward over time, sometimes requiring revision.
Residual stiffness or differences
Limited motion, bending, rotation, or nail differences may persist despite reconstruction.
Anesthesia complications
Anesthesia can cause reactions or breathing problems. The anesthesia team reviews individual risks before surgery.
Discuss these risks and your individual health history with your surgeon. [1]
What your clinician assesses
- Which fingers are joined and how far the connection extends
- Bone, joint, tendon, nerve, and blood-vessel anatomy
- Age, growth pattern, hand function, and associated conditions
- General health, prior surgery, and available skin for reconstruction
07 · Costs
What makes up the Total Procedure & Care Cost
Compare written estimates for the same planned scope, including which fingers will be treated, grafting, and whether surgery will be staged. Insurance coverage and authorization depend on the plan and medical need.
Surgeon
Surgical care
Surgeon services for release and reconstruction.
Ask your surgeonAsk which web spaces, graft procedures, and follow-up visits are included and how staged operations are billed.
Facility
Anesthesia and facility
Anesthesia services and use of the operating and recovery areas.
Ask your surgeonConfirm whether these are separate bills and whether each provider and facility is in network.
Supplies
Supplies and follow-up
Dressings, casts or splints, medicines, and any prescribed hand therapy.
Ask your surgeonAsk which items are included and what may be charged separately.
TRC
Patient Services
Any separately offered scheduling, education, or care-coordination services.
Ask TRCAsk whether there is a fee, what it covers, and whether the service is optional.
Your written estimate should explain the services included, any separate charges, and payment terms.
08 · Questions
Common questions
Is syndactyly the same as having an extra finger?
No. Syndactyly means joined fingers; polydactyly means an extra finger or digit. Some people have both, which can change the reconstruction plan.
Does every joined finger need surgery?
No. The decision depends on function, growth, anatomy, and goals. A hand surgeon can explain the benefits and drawbacks of release versus observation.
Can adults have syndactyly release?
Yes, selected adults may benefit. Long-standing joint or bone differences can limit what separation achieves, so the goals need careful assessment.
Will the fingers join together again?
The original connection does not simply regrow, but scar tightening or web creep can narrow the separation. Follow-up helps identify changes that may need treatment.
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Prepare for your consultation
Bring these to help your consultation:
- Understand the anatomy, goals, and reasons for the proposed timing.
- Confirm the protection, follow-up, and urgent-contact plan.
- Review a written estimate and any insurance authorization requirements.
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Sources
- [1]Cleveland Clinic: SyndactylyDefinition and types of syndactyly, evaluation, individualized surgical timing, separation with skin coverage, and potential complications and repeat surgery.
- [2]MedlinePlus: Webbing of the fingers or toes repairReconstructive separation, skin grafting, anesthesia and surgical risks, postoperative protection, and warning signs involving finger circulation, pain, fever, and drainage.
Photographs are illustrative scenes, not patients, staff, facilities or outcomes. This information does not replace a personal assessment by your treating clinician.