04/09/2025
Angular limb deformity (ALD) is when the bones grow in an abnormal direction or length. This can result from an injury to the growth plates (the section of the bone that produces new bone in a growing animal) or can be a developmental issue due to the natural conformation of the animal (for example Shih Tzus and bulldog types). In paired bones, such as the radius and ulna, if one bone stops growing prematurely then an ALD can result.
The result of ALD can be altered posture, abnormal joint congruity, lamenss and pain. Examination, radiographs and CT analysis are usually required to evaluate and characterise the deformity.
The treatment for ALD depends on the age of the patient and type of deformity. The aims of surgery include improving posture, alleviating pain and improving joint congruity. This is often achieved by cutting the abnormal bone and correcting its alignment. The accuracy of this surgery, and the outcome, is greatly enhanced using 3D CT planning and patient specific guide systems.
In young patients where there is still bone growth happening there are surgeries that can be carried out to influence, and correct, the remaining growth of the bone.
If you have a patient, or a pet, with an angular limb deformity please get in touch to see if we can help.
