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Fig. 3 | Journal of Orthopaedic Surgery and Research

Fig. 3

From: Evaluation of the learning curve and complications in unilateral biportal endoscopic transforaminal lumbar interbody fusion: cumulative sum analysis and risk-adjusted cumulative sum analysis

Fig. 3

Learning curve of CUSUM analysis CUSUM = 675.6-4.175 × n–0.03848 × n2–5.653e−4 × n3 + 1.149e−5 × n4 + 1.154e−7 × n5–1.892e−9 × n6

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X