Abstract: An orthopaedic appliance which enables paralytics to stand erect has a pllity of separate pieces of clothing to be fitted around body parts located between joints, the pieces having an inflatable support structure in the form of vertical tubes, and including belts formed of two strips of cloth fastened to opposite sides of the support structure, and devices inter-connecting pieces of clothing located on opposite sides of a body joint in the form of two rows of pins attached to the inflatable structures of the pieces of clothing and a mechanical articulation interconnecting the rows of pins. The inflatable tubes have generally rectangular cross-sections and the widths of the tubes of each support structure decrease symmetrically from the center to the side edges of the structure. The supporting devices connecting pieces of clothing on opposite sides of the hip joint have one row of pins detachably connected to the mechanical articulation.