Compression or AKBK Shrinkers are used to control edema and shape the limb. Compression is used in all post-operative devices but is also used alone in some cases. This is the minimal amount of post-operative management you may receive. Shrinkers may be in the form of an open-ended tube which is rolled onto your limb and then reflected at the bottom of your limb for a second layer or a single layer sock that is stitched at the bottom. Either way it is important that you pull the sock snug to the bottom of your limb to reduce the chance of swelling.