Knee A to Z

A double-bundle graft in ACL surgery uses two bundles of graft material instead of one, to try to mimic the normal ligament.

A double-level osteotomy is a procedure where both tibia and femur bones are cut across and realigned in the same procedure. This surgery is relevant in patients who have marked lower limb alignment problems, and involves simultaneous high tibial osteotomy and distal femoral osteotomy. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)

Double varus is bow legs (varus deformity) are accompanied by demonstrable lateral collateral ligament damage laxity, with lateral joint opening.

The drive-through sign is when the arthroscopic surgeon during the arthroscopy sees an abnormally big space at the back of the knee joint on the lateral side.

A drop-out cast is an inexpensive splint for improving knee extension. Page updated March 2024 by Dr Sheila Strover (Clinical Editor)

DVT is an abbreviation for deep vein thrombosis.

Dysplasia means 'abnormal shape' so that a dysplastic body part is one that is abnormal in shape

Dysplastic means abnormal in shape, usually implying that one is born with this issue.