AU - Lamberg, Tommi AU - Remes, Ville AU - Helenius, Ilkka AU - Schlenzka, Dietrich AU - Seitsalo, Seppo AU - Poussa, Mikko TI - Uninstrumented In Situ Fusion for High-Grade Childhood and Adolescent Isthmic Spondylolisthesis: Long-Term Outcome PT - JOUR DP - 2007 TA - The Journal of Bone & Joint Surgery PG - 512-518 VI - 89 IP - 3 AID - 10.2106/JBJS.E.00545 [doi] 4100 - http://dx.doi.org/10.2106/JBJS.E.00545 SO - The Journal of Bone & Joint Surgery March 1, 2007 89(3):512