Compression after surgery of the knee

INTERVENTION: Standard care (control) arm As soon as the operation is finished and a wound dressing has been applied, the standard bandaging is applied. One layer of soft synthetic bandage, stretching from proximal tibia to distal femur covered by a further layer of crepe bandage prior to or after tourniquet deflation, with 50% overlap of each layer (cryotherapy can be applied over this if standard of care). The bandaging will be removed approximately 48 hours post‐operatively whilst leaving the dressing in situ. The bandages can be removed sooner than 48 hours if the patients find them very uncomfortable or in the event of any adverse events that would require their removal. Andoflex TLC Calamine Lite compression bandaging (intervention) arm As with standard bandaging, the Andoflex TLC Calamine Lite compression bandage will be applied over the routine surgical wound dressing. A foam inner bandage (Andoflex TLC Calamine Lite 2, Milliken Healthcare) is applied from the toe to the groin on the affected leg with minimal overlap. The second layer, which is the actual compression bandage (Andoflex TLC Calamine Lite 2, Milliken Healthcare) is applied at full stretch and with a 50% overlap of bandage to ensure adequate compression in the application. The mode of action of this two‐layer compressive bandage kit is of particular practical use, since it is tolerable for patients overnight due to its low resting pressure. Furthermore, it produces high‐pressure compression with movement to stimulate the calf muscle pump. The bandage is applied from the toes upwards. The application of bandage from thigh to groin requires removal of the tourniquet first and so the leg is kept elevated until the bandaging is complete. There is a tra CONDITION: Knee surgery ; Surgery PRIMARY OUTCOME: Pain (at rest) measured using the visual analogue score (VAS) at baseline, 3 days, 5 days, 12 days and 6 weeks SECONDARY OUTCOME: ; 1. Pain (whilst walking) measured using the visual analogue score (VAS) at baseline, 3 days, 5 days, 12 days and 6 weeks; 2. McGill pain profile measured using the visual analogue score (VAS) at baseline, 3 days, 5 days, 12 days and 6 weeks; 3. Knee/limb range of motion measured using a goniometer at baseline and 6 weeks; 4. Knee‐specific pain profile measured using the KOOS score survey at baseline, 6 weeks and 12 weeks; 5. Patient satisfaction with the bandaging measured using a non‐validated survey at 12 days; INCLUSION CRITERIA: 1. Patient who is listed for: 1.1. Knee arthroplasty (replacement) surgery, either partial or total knee replacement (single or double) 1.2. Unilateral high tibial osteotomy (HTO) or distal femoral osteotomy (DFO) or a double osteotomy (HTO and DFO) at one of participating NHS Trusts 1.3, In case of double procedure patients, one leg will be classed as the index leg and all outcomes measures will focus on said leg 2. Clinical indication, in the opinion of the treating surgeon, that dual‐layer compression bandaging may be of benefit to the patient 3. Adult patients aged >18 years 4. Mental capacity to give written informed consent