INTRODUCTION: Urinary retention is a widely recognised postoperative complication. Although anecdotally lower limb arthroplasty is linked with high rates of urinary retention. there are no current accepted standards for determining which patients are at higher risk and should therefore be offered intra operative catheterisation. MATERIALS AND METHODS: One hundred patients. https://halohealthcarers.shop/product-category/heavy-duty-bariatric-chairs/