TY - JOUR AU - Ries, M.D. DO - doi:10.1302/1358-992X.98BSUPP_17.CCJR2016-064 UR - https://doi.org/10.1302/1358-992X.98BSUPP_17.CCJR2016-064 TI - THE STIFF KNEE: CAUSES AND CURES T2 - Orthopaedic Proceedings VL - 98-B IS - SUPP_17 PY - 2016 SP - 64 EP - 64 ER -