If the Patient-Reported Outcome Measures After Total Knee Arthroplasty Are Good, Do Any Other Measurements Really Matter?: Commentary on an article by Thies J.N. van der Lelij, MD, et al.: "Tibial Baseplate Migration Is Not Associated with Change in Patient-Reported Outcome Measures and Clinical Scores After Total Knee Arthroplasty. A Secondary Analysis of 5 Radiostereometric Analysis Studies with 10-Year Follow-up".