Recovering from a lower leg injury—whether a broken ankle, foot surgery, or Achilles tendon repair—can feel like a major hurdle in daily life. For decades, crutches were the only answer, leading to armpit pain, fatigue, and a constant fear of slipping. The modern solution, the knee walker (or knee scooter), has revolutionized non-weight-bearing mobility. However, not all knee walkers are created equal.