Length of Hospital Stay for Osteoarthritic Primary Hip and Knee Replacement Surgeries in New Zealand

Chunhuan Lao, David Lees, Sandeep Patel, Douglas White and Ross Lawrenson
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Chunhuan Lao: Waikato Medical Research Centre, The University of Waikato, Hamilton 3240, New Zealand
David Lees: Orthopaedic Department, Tauranga Hospital, Tauranga 3143, New Zealand
Sandeep Patel: Orthopaedic Department, Waikato Hospital, Hamilton 3240, New Zealand
Douglas White: Rheumatology Department, Waikato Hospital, Hamilton 3240, New Zealand
Ross Lawrenson: Waikato Medical Research Centre, The University of Waikato, Hamilton 3240, New Zealand

IJERPH, 2019, vol. 16, issue 23, 1-11

Abstract: This study aims to explore the length of stay (LOS) of publicly funded osteoarthritic primary hip and knee replacement surgeries in New Zealand. Patients with osteoarthritis who underwent publicly funded primary hip and knee replacement surgery in 2005–2017 were included. We have identified 53,439 osteoarthritic primary hip replacements and 50,072 osteoarthritic primary knee replacements. LOS has been reduced by almost 40% over the last 13 years. Logistic regression showed that women, M?ori, Pacific and Asian patients, older patients, people with more comorbidities and those having opiates on discharge and patients in earlier years were more likely to have extended LOS following hip replacements and knee replacements. Regional differences were noted in LOS between the Waitemata District Health Board (DHB) compared to Tair?whiti DHB where patients were the most likely to have a LOS of more than 5 days after hip and knee replacements. LOS after hip and knee replacements has been reduced dramatically. Women, M?ori, Pacific and Asian patients, older patients and people with more comorbidities are more likely to have extended LOS. Patients dispensed opiates on discharge had a longer LOS. There are great geographical variations in LOS for primary hip and knee surgeries in New Zealand.

Keywords: hip replacement; knee replacement; osteoarthritis; length of stay (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
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