Letter to the editor regarding the article "Bone metabolism in the healing process of lumbar interbody fusion-temporal changes of bone turnover markers". By Hyakkan R et al. Spine (Phila Pa 1976). 2021 Apr 19. doi: 10.1097/BRS.0000000000004075
Spine (Phila Pa 1976). 2021 Sep 1;46(17):E955.
doi: 10.1097/BRS.0000000000004151.