The invention to which this application relates is to the provision of medical devices such as implants for use in hips, knees or the like and also tools which may be used in surgery or for medical treatment. At least a portion of the external surface of the device is provided with a particular external surface texture which in accordance with the invention is formed by exposing said portions to at least one power beam. The exposure and relative movement between the device and the beam cause specific controlled configurations of the surface to be created without the need to add additional material and therefore allow the formation of the surfaces to the required configuration while maintaining the integrity of the device.

 
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