Risks that are associated with this treatment method are similar to the risks associated with an ACDF. Serious complications are rare, but most people have some difficulty swallowing and hoarseness temporarily. Malfunctions of the devices are rare but have been reported.  Despite these types of risks and potential side effects, most patients have reported experiencing complete or dramatic pain relief as well as enhanced mobility, mood, and quality of life, and an increased ability to engage in physical activity. In addition, the need for prescription strength or over the counter pain relievers is also greatly reduced for most patients who have undergone a cervical disc replacement.