Fig. 3

Posterior dissection and observation of specimen underwent MIPO. Accessory nutrient arteries were preserved unaffected by MIPO. Accessory nutrient arteries originated from the deep brachial artery (2–4 branches) and entered the mid-distal portion of the humeral shaft posteriorly, through the radial groove. P, the proximal end; D, the distal end; Apb, the arteria profunda brachii; RN, radial nerve; Acm, arteria collateralis media. The arrow heads denote the accessory nutrient arteries