After the updates of 25 March, 2009, the appearance of equipped dragon platelegs slightly changed with the addition of spikes to the knees.
When worn, each knee features a single, grey metallic spike, but not when they are in the inventory or on the floor.
There used to be a glitch when a player was wearing dragon platelegs with the orb of oculus, the legs would stretch and touch the orb. This glitch has been fixed however.
As of 4 August2010, you can obtain ornament kits for the platelegs by completing clue scrolls or buying them. These make them more decorative.
Upon getting Dragon platelegs, in the Adventurer's Log, it will say "After I killed a [Bronze/Iron/Steel dragon], it dropped dragon platelegs."
When standing, the spikes are affixed to the knees; however, when resting, the spikes seem to stretch, causing a graphical glitch that makes the spikes appear on the thighs.
Dragon platelegs have experienced a dramatic drop in price from around 1,000,000 coins to around 200,000. This could be due to a number of reasons, such as rising supply, less demand, or more use of other popular types of leg armour such as Bandos tassets, Barrows, etc.