 In many cases, the surgical treatment options described above (temporary injection medialization, medialization thyroplasty, arytenoid adduction, and laryngeal reinnervation) have led to favourable outcomes as measured perceptually, acoustically, by laryngoscope, or via quality of life measures.However, none of these surgical interventions has been shown to be significantly better than the others.It is generally recommended that voice therapy start 1 to 2 months after surgery, when swelling has subsided.