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Revision Surgery Following Primary Reconstruction for Hand Syndactyly
Zoe E Belardo1, Emily M Graham2, Meagan Pehnke1
1Division of Orthopaedics, The Children's Hospital of Philadelphia, Philadelphia, PA.
Purpose:
Web creep and scar contracture are established complications of syndactyly reconstruction; however, few reports characterize risk factors for revision surgery. The purpose of this investigation was to examine the rate and risk factors of reoperation for congenital hand syndactyly.
Methods:
Patients undergoing syndactyly reconstruction from 2007 to 2021 at a single children's hospital were reviewed. Cases with less than 1 year of follow-up were excluded. Demographic, surgical, and outcomes data were recorded by each web space to account for mixed treatments.
Results:
In total, 514 web spaces in 231 children were reviewed with a mean follow-up of 6.0 years after primary reconstruction; 66 (12.8%) web spaces in 51 (22.1%) children underwent revision. The most common procedures were web space deepening due to web creep (57.9% of cases) and digital scar contracture release (45.6%); these were augmented in a minority (17.5%) of cases by other aesthetic/functional procedures. Revisions occurred at a median of 1.7 years after primary reconstruction. First web spaces (thumb-index finger) were most frequently reoperated (33.3%). On multivariable analysis, first web space involvement, complete syndactyly, and complications after the primary reconstruction significantly increased odds of revision. Age at primary reconstruction was not a significant predictor. Following revision, 10.5% of cases had recurrent web creep, and 14.0% had recurrent scar contracture. Eight (1.6%) web spaces in seven (3.0%) children required multiple revisions.
Conclusions:
Approximately 13% of syndactyly reconstructions (22% of patients) require reoperation. Most revisions occur within 4 years of primary reconstruction. Complete syndactyly, complications after the primary reconstruction, and first web space involvement increase the risk of revision; age at primary reconstruction is not a risk factor. Revision outcomes mirror the index procedure, with 10% to 14% of revised web spaces experiencing recurrent web creep or contracture.
Type Of Study/Level Of Evidence:
Therapeutic IV.
