rotular

from The Century Dictionary.

• Of or pertaining to a rotula; resembling a rotula; rotuliform; nodular; patellar: as, a rotular groove; the rotular bone of a limb.
• Specifically, noting that aspect or surface of the hind limb on which the rotula is situated: as, the rotular aspect of the foot, the dorsum of the foot, as opposed to the sole or plantar surface: opposed to popliteal, and corresponding to anconal in the fore limb, and to epaxial in either limb, when the limb is in its morphological position, extended at right angles with the axis of the body.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Anat.) Of or pertaining to the rotula, or kneepan.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective anatomy Of or relating to the rotula, or kneepan.