Introduction 13 (‘cookbook’). To optimize recovery with a minimal complication rate, it is recommended to use a treatment that is near the upper boundary of the therapeutic bandwidth, yet safe enough to avoid overloading, and that such treatment is guided by the permissive weight bearing protocol. Permissive weight bearing is a patient-tailored protocol. The protocol might be eligible for implementation in the treatment of trauma patients with surgically treated articular or (peri)- or intra-articular fractures of the pelvis and lower extremities.