Hello. Yes. First the extent of the knock knees needed to be assessed by an orthopaedic doctor and a physiotherapist who specialises in musculoskeletal issues. After which exercises and life style modification can be suggested and revised periodically.

Yes, by providing a modified footwear this can be achieved. adding some stretchings will yield in excellent result. Also orthosis can be given.Depending upon the severity of the condition what shall be given would be decided. All 3 will have results. Orthotist> Occupational Therapist > Occupational Therapist / physiotherapist ORTHOSIS > SHOE modification > stretching (Concerned Person ) (for Alternative(s)) Reducing Weight will also be helpful

Sir, if the knock knees are not causing much cosmetic problem to you then it is less likely to be a cause of pain at your age. Kindly consult an orthopedic surgeon to determine the true cause of your pain and its management.