Femoral Lengthening Might Impair Physical Function and Lead to Structural Changes in Adjacent Joints

Femoral Lengthening Might Impair Physical Function and Lead to Structural Changes in Adjacent Joints; 10 Patients With 27 to 34 Years Follow-up.

This study evaluates function, quality of life and development of hip- and knee osteoarthritis minimum 15 years after unilateral femoral lengthening on people with idiopathic or post-traumatic anisomelia.

This study has a cross-sectional design, where patients that completed femoral lengthening more than 15 years ago and fulfills the inclusion criteria's are invited to participate. Patients will undergo radiographic imaging to evaluate hip- and knee arthritis, axis deviaton and leg length discrepancy. To evaluate quality of life, function and pain, the participants will complete the forms EQ-5D-5L, Knee osteoarthritis outcome score (KOOS) and International physical activity questionnaire (IPAQ). Bilateral active hip and knee range of motion will be measured with hand held goniometer, and the functional tests 30 seconds sit to stand, hop tests and stair test will be conducted.

Inclusion Criteria:

• Patients with idiopathic or post traumatic leg length discrepancy who are lengthened with the callutasis method minimum 15 years ago

Exclusion Criteria:

• Patients that are lenghtened with innate pathology resulting in shortening of the limb, angle deviation and less musculature, for example congenital femoral deficiency or fibula hemimelia.
• Patients with acquired leg length discrepancy who have had infection in knee or hip joint