Foot pressure algorithms to predict clubfoot reoccurrence

The purpose of this study was to use foot pressure data, at the age of 2 years, to predict reoccurrence of deformity for children with unilateral clubfoot. Algorithms predicting overall presence of reoccurrence, repeat casting, repeat tenotomy, Achilles lengthening and tibialis anterior tendon transfer were developed utilizing parameters related to peak pressure, contact area, contact time and force. The algorithms for overall reoccurrence and tibialis anterior tendon transfer were robust (R2 0.55 and 0.59) and should be utilized in the clinical setting. The algorithms for repeat casting, repeat tenotomy and Achilles lengthening should be used with caution (R2< 0.50).