In applying dressings, especially of plaster of Paris, in the region of the hip joint, a rest is needed which will add to the patient's comfort, allow sufficient working space, give a feeling of security during traction, permit easy removal and leave a well-fitting cast.
Patients not infrequently complain more of pain during and following the application of a cast than of the disease which required its application. Orthopedic surgeons find plaster a serviceable dressing because they have learned through experience to guard against the pitfalls attending its use. Sores due to pressure may be avoided by padding and smoothness of the areas of contact. The sacrum is one of the most common sites of such sores, mainly the result of flat, ill-fitting appliances which leave irregular irritating areas supporting the weight of the body.
In order to insure perfect contact and avoid pressure-pain, the support should conform to the