9. Waterproof cast versus "traditional" cast: participant and intervention characteristics.

Study ID	No. participantsAge	Fracture type	Waterproof cast	Traditional cast	Duration of use
Derksen 2011	68 Mean: 9.8 years; range 5 to 15 years (eligible)	Isolated greenstick or buckle fracture of the distal radius (56 (82%) were buckle fractures)	"Swim cast": air‐ventilating semi‐flexible polyester cast manufactured without the use of a synthetic wool liner and thus applied directly over the protective stocking	Traditional cast (made of polyurethane material, with a cotton liner). Participants receiving the traditional cast were advised to use a protective plastic bag when taking a shower or going for a swim	Both types of casts were worn for 2 to 3 weeks. Children younger than 8 years were immobilised for a total of 3 weeks and children 8 years and older were immobilised for a total of 4 weeks,
Silva 2016	27 Mean: 9.4 years; range 6 to 13 years	Nondisplaced or minimally angulated (< 15 °) fracture of the distal radius (23 (85%) were buckle fractures)	"Waterproof cast": below‐elbow cast made of the waterproof hybrid mesh material with a waterproof skin protector	Non‐waterproof cast: below‐elbow cast of traditional fibreglass material with a non‐waterproof lining material. Participants with the traditional cast were asked to keep it dry	Cross‐over trial. Casts were replaced by the alternative cast at 2 weeks post‐cast application