Reliability of cincinnati knee rating system and 3 different functional tests long term outcome of the following anterior cruciate ligament reconstruction

Purpose: Examine the intratester reliability of the Cincinnati Knee Rating System and single leg hop for distance, triple hop test, crossover hop tests in subjects following anterior cruciate (ACL) reconstruction on two testing occasions, performed one week apart. Materials and Methods: Sixteen patients, who had undergone ACL reconstruction six months before the tests and followed orthopedics rehabilitation participated in this study. Examine the test-retests reliability of the a single leg hop test, triple hop test, crossover hop test and CKRS, Cincinnati Sports Activity Scale ( CSAS ) performed one week apart. Results: Intraclass correlation coefficients ( ICCs ) were 0.88 for CKRS, 1.00 for CSAS, 0.95 for single leg hop test, 0.96 for triple hop tests, 0.97 for crossover hop test. The limb symmetry scores for the single leg hop tests were found as 97.4% for the first measurement and 91.2% for the second measurement; for triple hop test; 94.3% for the first measurement, 91.5% for the second measurement; for crossover hop test 93.3% for the first measurement and 93.1% for the second measurement. Conclusion: The results showed that CKRS, CSAS and a single leg hop tests, triple hop tests, crossover hop tests provide higher reliability for patients undergoing rehabilitation following ACL reconstruction. Future research should be determine the validity of these tests and, if isokinetic tests can not do, we think about these tests may use in orthopedic rehabilitation after ACL reconstruction based on evidence based data.