Mr MacInnes has worked as a consultant in NHS Tayside since 2022. He has a particular interest in lower limb arthroplasty, including complex primary arthroplasty as well as revision arthroplasty. He also offers general orthopaedic trauma care, including management of pelvic and acetabular fractures.

Following completion of his medical degree, Mr MacInnes undertook his orthopaedic training in the East of Scotland. Following his FRCS Ed (T&O) he undertook an international fellowship in revision arthroplasty and trauma in New Zealand and a second fellowship in pelvic and acetabular trauma at the Queen Elizabeth University Hospital.

Mr MacInnes also fills his time working as the club doctor for St Johnstone FC.