Unicompartmental knee arthroplasty (UKA) has been successfully
performed in the United States healthcare system on outpatients.
Despite differences in healthcare structure and financial environment,
we hypothesised that it would be feasible to replicate this success
and perform UKA with safe day of surgery discharge within the NHS,
in the United Kingdom. This has not been reported in any other United
Kingdom centres. We report our experience of implementing a pathway to allow safe
day of surgery discharge following UKA. Data were prospectively
collected on 72 patients who underwent UKA as a day case between
December 2011 and September 2015. Aims
Patients and Methods
Unicompartmental knee replacements offer improved function with more rapid recovery compared to TKR. There is no published experience with introducing this procedure as a day case in the UK. We report on our experience with a new protocol allowing the patient to be discharged on the day of surgery. A new combination of anaesthetic and surgical techniques are employed. Paracetamol, ibuprofen and pregabalin are given pre-operatively. Patients receive a GA and a subsartorial saphenous nerve block is administered under ultrasound control. The surgery is performed using a routine minimally invasive technique. The joint and surrounding tissues are infiltrated with a combination of LA and adrenaline. Wound closure is with subcutaeneous suture and tissue glue. Patients are mobilised on the day of surgery and if comfortable discharged on paracetamol, codeine, ibuprofen, tramadol P.R.N and buprenorphine patch. Length of stay, pain scores, presence of nausea/vomiting, dizziness, drowsiness, post-operative bleeding and patient satisfaction are all recorded. 18 out of 19 patients have been discharged on the day of surgery. All record high satisfaction. Patients can be safely discharged on the day of surgery after UKR with high levels of satisfaction. We believe we are the first unit in the UK to achieve this.