Title {1}	A prospective randomised controlled trial comparing Functional with Mechanical Axis Alignment in total knee arthroplasty: study protocol for an investigator initiated trial
Trial registration {2a and 2b}.	Australia and New Zealand Clinical Trials Registry (ANZCTR): U1111-1257-2291 www.clinicaltrials.gov: NCT04748510
Protocol version {3}	Version 1.6, 4th March 2021
Funding {4}	Stryker (Kalamazoo, MI, USA)- Are providing VERASENSE sensor devices (Orthosensor Inc, Florida, USA), and funding for the arthrometers and dynamometers used in this study. St John of God Healthcare (Perth, WA, Australia)- providing funding support for a research physiotherapist and also covering the cost of insurance for the study.
Author details {5a}	Dr Richard Steer 1,2,4 Ms Beth Tippett 3,4 Dr R Nazim Khan 4 Mr Dermot Collopy 3,4 Mr Gavin Clark 3,4,5 1 Gold Coast University Hospital- 1 Hospital Boulevard, Southport, Queensland, Australia 2 University of Queensland- St Lucia, Queensland, Australia 3 St John of God Hospital- Subiaco, Western Australia, Australia 4 Perth Hip and Knee Clinic- 1 Wexford St, Subiaco, Western Australia, Australia 5 University of Western Australia- 35 Stirling Hwy, Crawley, Western Australia, Australia
Name and contact information for the trial sponsor {5b}	St John of God Healthcare Level 1, 556 Wellington StreetPerth WA 6000Tel: + 61 8 6116 0000Fax: + 61 8 6116 0800Email: info@sjog.org.au
Role of sponsor {5c}	St John of God Healthcare has provided governance for this study including HREC oversight, insurance for the study along with financial support for a research physiotherapist