Restricted Kinematic Alignment in Total Knee Arthroplasty: Scientific Exploration Involving Detailed Planning, Precise execution, and Knowledge of When to Abort

Not long ago, we were all transfixed by 50th anniversary tributes to humankind’s most daring achievement to date, the Apollo 11 moon landing. At 2 hours 44 minutes and 19 seconds after launch, the crew performed another jaw-dropping procedure. Translunar injection, a 6-minute burst of Saturn V engines, thrust Apollo 11 out of a low, circular parking orbit around Earth and catapulted it at 25,000 mph toward its precise target: the Moon.