Clinical Research Directory

The Permissive Weight Bearing (PWB) protocol allows earlier post-operative permissive weight bearing, where progression of weight bearing is guided by the subjective experience (for example: pain, weight bearing tolerance) of the patient and the clinical expertise of the treating physician and therapist. Patients allocated to the PWB protocol start weight bearing after wound healing is achieved (approximately two weeks after the operation). Consequently, patients are stimulated to bear as much weight as tolerated by pain and comfort. Treatment will take place according to the PROMETHEUS protocol (treatment- and evaluation protocol). The protocol contains a number of weight bearing milestones (e.g. walking with two crutches, walking with two canes, walking with one cane and walking without any walking aids). The treating physiotherapist or physician records the dates that these milestones are reached in the study database.

The Restrictive Weight Bearing (RWB) protocol consists of 8 to 12 weeks of postoperative restricted weight (0-10%) bearing, following the current AO Guidelines (7). After 8 weeks of restricted weight bearing, the weight bearing will be increased with 25% per week for 4 weeks. Every time the patient and the treating physical therapist or physician have contact, the weight bearing advice given to the patient at that point in time is recorded (unloaded; partial weight bearing + clarification; full weight bearing). Also, any additional advice given to the patient is recorded.