RT Journal Article
SR Electronic
T1 Myovascular Preserving Open-Door Laminoplasty for Cervical Spondylotic Myelopathy With Miniplate Fixation
JF International Journal of Spine Surgery
JO Int J Spine Surg
FD International Society for the Advancement of Spine Surgery
SP 476
OP 482
DO 10.14444/7062
VO 14
IS 4
A1 EGUCHI, YAWARA
A1 SUZUKI, MUNETAKA
A1 YAMANAKA, HAJIME
A1 TAMAI, HIROSHI
A1 KOBAYASHI, TATSUYA
A1 ORITA, SUMIHISA
A1 NARITA, MIYAKO
A1 INAGE, KAZUHIDE
A1 KANAMOTO, HIROHITO
A1 ABE, KOKI
A1 INOUE, MASAHIRO
A1 NORIMOTO, MASAKI
A1 UMIMURA, TOMOTAKA
A1 SATO, TAKASHI
A1 AOKI, YASUCHIKA
A1 WATANABE, ATSUYA
A1 KODA, MASAO
A1 FURUYA, TAKEO
A1 NAKAMURA, JUNICHI
A1 TOYONE, TOMOAKI
A1 OZAWA, TOMOYUKI
A1 AKAZAWA, TSUTOMU
A1 TAKAHASHI, KAZUHISA
A1 OHTORI, SEIJI
YR 2020
UL https://www.ijssurgery.com/content/14/4/476.abstract
AB Objective Laminoplasty is an effective procedure for treating cervical spondylotic myelopathy. We conduct myovascular preserving open-door laminoplasty (MPLP) in combination with a laminoplasty plate to improve the stability of the enlarged lamina. We compare the details of the MPLP technique with conventional open-door laminoplasty.Methods We compared 25 cases of MPLP (mean age = 70.5, mean follow-up period = 19 months) with 15 controls who received conventional open-door laminoplasty using hydroxyapatite spacers (mean age = 74, mean follow-up period = 53 months). Regarding surgical outcomes, blood loss, operative time, Japanese Orthopaedic Association score, and postoperative visual analog score for neck pain were measured. Regarding image analysis, preoperative and postoperative range of motion (ROM), C2-7 angle, implant back out, hinge bone fusion time, presence or absence of hinge bone union failure, and posterior neck fat infiltration rate were evaluated.Results Operative time was significantly shorter for MPLP, and postoperative neck pain was significantly decreased. In image evaluation, %ROM was significantly increased in MPLP, but no difference in C2-7 angle existed between the 2 groups. Implant back out was not recognized in either group. In MPLP, the hinge union period was significantly shortened, and the postoperative fat infiltration rate was significantly decreased.Conclusions We were able to reduce neck pain after surgery by an approach entailing longitudinal splitting of the spinous processes. We were able to ensure shorter operation times due to cervical plates and better hinge bone fusion times due to initial stability.Level of Evidence 4.