Three cases of prolapsed disc presenting as 'twisted ankles'.

We have recorded three cases of patients who initially were referred to the orthopaedic department with ankle problems. One of these was actually being managed with a full below-knee walking plaster. All of these patients proved to have prolapsed intervertebral discs with appropriate symptoms, and signs at examination and on computerized tomography (CT). Incorrect management protocols resulted in possible morbidity or at least in a delay in correct diagnosis. In summary, it is recommended to remember nerve root compression as a cause for ankle pain and for lack of abductor control of the ankle joint. This emphasizes the need for an adequate history and examination.