T-junction injuries of the biceps femoris: bridging the gap between expert opinion and evidence-based practice

Hamstring injuries involving the distal musculotendinous junction of the biceps femoris, often termed ‘T-junction’ injuries, have drawn attention and discourse due to proposed high recurrence rates and the clinical challenges they present. These injuries occur at the anatomical confluence, or zipper, of the long and short heads of the biceps femoris muscle—an area subject to considerable mechanical stress owing to dual innervation, varying fibre orientation and variable local connective tissue architecture ( figure 1).1