Subjects will be recruited to the study if they have VAS score ≥ 6 and has given informed consent to participate in the Melody Study will be randomised to Arm 1 Sham Procedure and Conservative treatment or Arm 2 Balloon Kyphoplasty and Conservative treatment. Subjects recruited to Arm 1 (Sham Procedure and Conservative treatment) can cross over into Arm 2 (Balloon Kyphoplasty and Conservative Treatment) if they have a VAS score ≥ 6 between 8-12 weeks.