5 December Case Updates One tray short of a baker’s dozen: injury on the production line Orthopaedics, 11. Report Writing, 15. Giving Oral Evidence, biomechanics This case concerns an important boundary matter that sometimes arises for orthopaedic experts in relation to biomechanics and ergonomics. These are areas of expertise for which the orthopaedic surgeon’s ‘working knowledge’ may be sufficient, thereby avoiding the time and expense of instructing a further expert just as in cases where knowledge and experience of orthopaedics in general is sufficient and it is not necessary to instruct an orthopaedic sub-specialist. Swierzko v Mathiesons Bakery Ltd [2024] SC EDIN 43