Postoperative lumbar spinal stenosis after intertransverse fusion with granules of hydroxyapatite: a case report. - Gen Inoue; Seiji Ohtori; Tomoyuki Ozawa; Toshinori Ito; Morihiro Higashi; Kazuyo Yamauchi; Sumihisa Orita; Junichi Nakamura; Tomoaki Toyone; Masashi Takaso; Kazuhisa Takahashi (Diagnostic Pathology, 2012)