The purpose of this study was to derive normative values for range of motion and single-leg hop tests on athletes with no history of knee injury. Subjects measured for range of motion included 578 healthy males (mean age, 14.5 years) and 311 healthy females (mean age, 14.0 years). Subjects performing single-leg hop included 1,635 healthy males (mean age, 14.5 years) and 873 healthy females (mean age, 14.2 years). Measurements were taken during preseason athletic physicals. Mean range of motion was 5-0-140 for males and 6-0-143 for females. Mean single-leg hop for both legs was 155 cm for males and 121 cm for females. The paper discusses the importance of measuring terminal hyperextension as well as the importance of normal side-to-side variations in ROM and the single-leg hop test. The results of the single-leg hop test should not be used exclusively but rather in conjunction with other information gathered during the clinical visit.
Mark S. De Carlo and Kecia E. Sell
Mark S. De Carlo, Kecia E. Sell, K. Donald Shelbourne and Thomas E. Klootwyk
It is well established that intra-articular anterior cruciate ligament reconstruction with autogenous bone-patellar tendon-bone graft provides satisfactory long-term stability. However, the rehabilitation programs employed following this surgical procedure have been a topic of considerable debate. This paper describes an accelerated rehabilitation protocol that is divided into four phases. The first phase encompasses the preoperative period, during which the patient will work to decrease swelling and restore range of motion and strength. The second phase involves Weeks 1 and 2 following surgery, with the patient emphasizing immediate terminal knee extension and weight bearing. The final two phases involve improving lower extremity strength and full return to daily and athletic activities. This accelerated rehabilitation protocol has resulted in an earlier return of range of motion and strength without compromising ligamentous stability.