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Extraarticular subtalar arthrodesis with internal fixation.

J A Barrasso, P B Wile, J R Gage

Journal of Pediatric Orthopedics

|September 1, 1984

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Extraarticular subtalar arthrodesis effectively corrected paralytic planovalgus deformity in cerebral palsy patients. This surgical technique demonstrated high success rates for improving gait and foot stability with durable outcomes.

Area of Science:

Orthopedic surgery
Pediatric orthopedics
Cerebral palsy management

Background:

Mobile, paralytic planovalgus deformity is a common complication in cerebral palsy.
This condition significantly impacts gait, foot stability, and overall mobility.
Effective surgical correction is crucial for improving functional outcomes.

Purpose of the Study:

To evaluate the efficacy and durability of extraarticular subtalar arthrodesis in patients with cerebral palsy.
To assess the correction of planovalgus deformity and its impact on clinical status and gait.
To determine the union rate and mechanical success of internal fixation.

Main Methods:

A retrospective review of 40 extraarticular subtalar arthrodeses in 26 patients with cerebral palsy.

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Internal fixation was used for all procedures.

Assessment included clinical evaluation, gait analysis, deformity correction, and foot stability measurements.

Main Results:

Surgical union was achieved in an average of 10 weeks.
No mechanical failures of the fixation screw were reported.
At a mean follow-up of 30 months, 95% of feet showed excellent or good outcomes.

Conclusions:

Extraarticular subtalar arthrodesis is a safe and effective procedure for correcting paralytic planovalgus deformity in cerebral palsy.
The technique provides durable correction, leading to improved gait and foot stability.
The advantages support the continued use of this surgical approach.