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Displaced Open Physeal Fractures of the Distal Phalanx (Seymour Fracture): Does Delay in Diagnosis and Treatment Result in Worse Outcomes?
Alfred Lee, BA1,2, Jason Wink, MD3, Benjamin Chang, MD4 and Ines C Lin, MD, FACS1, (1)University of Pennsylvania, Philadelphia, PA, (2)University of California, Riverside, Riverside, CA, (3)Plastic Surgery, University of Pennsylvania, Philadelphia, PA, (4)Division of Plastic Surgery, University of Pennsylvania, Philadelphia, PA

Introduction

Seymour fractures can present in an immediate or delayed fashion to both the clinic and emergency room. We present our experience with the treatment of Seymour fractures at a large urban pediatric tertiary care center.

Materials and Methods

A retrospective review (2007-2018) of patients who received definitive treatment of Seymour fractures at our institution was performed. Demographic, injury- and treatment-related, and outcome data were collected. Complications included pin or surgical site infection (SSI), physeal disruption, malunion, secondary fracture displacement, and nail deformity. Statistical analysis (t-test, Fisher's exact) was performed to identify significant differences (p<0.05) in outcomes between location and timing of initial presentation.

Results

65 patients (49 M/16 F) were included. Mean age was 11.6 ± 3.2 years (range, 3-17). Mean time from injury to initial presentation to any provider was 2.6 ± 5.2 days (range, 0-25). 75.4% (n=49) presented to an emergency room, 10.8% (n=7) to an outpatient office, and 12.3% (n=8) to urgent care. Of the 46 patients presenting initially to an outside institution, 14 (30.4%) were transferred to our institution. There was no significant difference from mean time injury to initial presentation for patients presenting initially to our institution, transferred from outside hospitals, and treated at outside hospitals (p=0.186). Sports and crush were the most common mechanisms. The most commonly injured fingers were middle (n=20), ring (n=18) and small (n=13). Patients treated initially at an outside institution (n=32) most commonly received splinting (65.6%) and/or antibiotics (25%). Definitive management at our institution consisted of open reduction (72%), closed reduction (9.2%), and trial of conservative management requiring subsequent surgery (18.4%). 93.9% (n=62) underwent percutaneous pinning. All patients had radiographic evidence of healing. Post-operatively, 7.6% (n=5) had SSI and 18% (n=12) had physeal disruption. 7 patients had documented nail deformity. No instances of pin infection, malunion, or secondary fracture displacement were reported. Delayed presentation >24 hours after injury was associated with clinical signs of infection prior to surgery (p<.001) and longer mean post-operative antibiotic duration (17.2 days vs 8.8 days, p=0.025). Timing and place of initial presentation were not significantly associated with SSI, physeal disruption, or nail deformity.

Conclusions

Delayed presentation is associated with greater risk of infection at time of surgery and a longer course of post-operative antibiotics. In our experience, surgically managed Seymour fractures have high rates of fracture healing and low rates of post-operative infection, physeal disruption, and nail deformity, even in cases of delayed care.


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