Waterproof cast liners in paediatric forearm fractures: a randomized trial.

Purpose: Waterproof casts have been shown to provide adequate support and immobilization in fractures. This study evaluated two waterproof cast liners, namely, Wet or Dry(®) and Delta Dry(®), in terms of ease of application/removal, durability, longevity, and patient satisfaction using patient- and technician-reported outcome measures.

Methods: A total of 105 children were enrolled in a randomized trial and received a below-elbow synthetic cast with either of the two cast liners.

Results: The two groups were comparable with regards to age, gender, side of cast, and hand dominance. Assessment was carried out at application and removal. In the patient-reported outcomes, the Wet or Dry(®) group was rated significantly better in the odor and water resistance categories. In the technician-reported application and removal outcome measures, the Delta Dry(®) group was rated significantly higher.

Conclusions: The use of waterproof cast liners appears to be safe in children with forearm fractures, with some differences in outcome between the two products trialed.