title: Response to: Comparison of Posterior Lumbar Interbody Fusion and Posterolateral Lumbar Fusion in Monosegmental Vacuum Phenomenon within an Intervertebral Disc.
authors: Department of Orthopaedic Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors: Ki-Chan
authors: KC
authors: An
authors: Department of Orthopaedic Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors: Gyu-Min
authors: GM
authors: Kong
authors: Department of Orthopaedic Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors: Dae-Hyun
authors: DH
authors: Park
authors: Department of Orthopaedic Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors: Jong-Min
authors: JM
authors: Baik
authors: Department of Orthopaedic Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors: Ji-Hong
authors: JH
authors: Youn
authors: Department of Orthopaedic Surgery, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors: Woon-Seong
authors: WS
authors: Lee