1.1 Current evidence on the safety and efficacy of joint distraction for knee osteoarthritis without alignment correction is inadequate in quantity and quality. Therefore, this procedure should only be used in the context of research.
1.2 Further research into joint distraction for knee osteoarthritis without alignment correction should include comparative studies against existing forms of management. Studies should record patient selection, joint space measurements in the medium to long term, functional outcomes, quality of life and complications. They should also report the nature and timing of any further surgery on the knee. NICE may update the guidance on publication of further evidence.