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Fig. 4 | Journal of Orthopaedic Surgery and Research

Fig. 4

From: Risk factors for adjacent segment degeneration after posterior lumbar fusion surgery in treatment for degenerative lumbar disorders: a meta-analysis

Fig. 4

a The standardized mean difference (SMD) estimate for bone mineral density in 2 groups. b The standardized mean difference (SMD) estimate for preoperative ODI score in 2 groups. c The standardized mean difference (SMD) estimate for preoperative JOA score in 2 groups. df = degrees of freedom, ODI = Oswestry disability index. JOA = Japanese Orthopedic Association, M-H = Mantel–Haenszel

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X