Comparison between anterior cervical discectomy with fusion and anterior cervical corpectomy with fusion for the treatment of cervical spondylotic myelopathy: a meta-analysis

Figures & data

Figure 1 Eligibility of studies for inclusion in meta-analysis.

Abbreviations: SinoMed, Chinese BioMedical Literature Service System; CNKI, China National Knowledge Infrastructure.

Table 1 Baseline characteristics of patients in the trials included in the meta-analysis

Study	Country	Surgeries	Case number	Age (years)	Follow-up (months)	NOS score
Oh et al^Citation7	South Korea	ACDF	14	52.64	24.9	8
		ACCF	17	55.12	27.33
Song et al^Citation24	South Korea	ACDF	25	50.3±7.5	87.3±21.7	9
		ACCF	15	54.1±9.8	94.3±25.3
Li et al^Citation25	People’s Republic of China	ACDF	47	NR	79.6±20.5	7
		ACCF	42	NR	79.6±20.5
Guo et al^Citation26	People’s Republic of China	ACDF	43	52.7±9.4	37.7±7.2	8
		ACCF	24	55.2±10.1	37.3±7.3
Liu et al^Citation27	People’s Republic of China	ACDF	69	46.1±6.8	26.8	8
		ACCF	39	47.8±6.4	26.4
Uribe et al^Citation28	USA	ACDF	42	46.2	27.6	8
		ACCF	38	50	26.4
Yu et al^Citation29	People’s Republic of China	ACDF	20	52.75±7.81	6	7
		ACCF	20	53.10±8.98	6
Xu et al^Citation30	People’s Republic of China	ACDF	22	32–68	18±4.25	8
		ACCF	15	38–71	18±4.25
Huang et al^Citation31	People’s Republic of China	ACDF	18	45–68	12–15	7
		ACCF	15	49–70	12–15
Sun et al^Citation32	People’s Republic of China	ACDF	24	35–70	13–34	7
		ACCF	16	35–70	13–34
Zhang et al^Citation33	People’s Republic of China	ACDF	87	52.64±11.4	24.9±24	8
		ACCF	69	55.12±12.2	27.33±20
Chen^Citation34	People’s Republic of China	ACDF	23	58.3±7.3	18.4±5.3	8
		ACCF	21	58.6±7.4	18.4±5.3
Liu et al^Citation35	People’s Republic of China	ACDF	27	56.5±9.2	13.6±1.2	3 (Jadad score)
		ACCF	27	54.4±10.9	14.1±1.4
Hou et al^Citation36	People’s Republic of China	ACDF	27	50.43±6.50	13–34	7
		ACCF	38	50.43±6.50	13–34
Huang et al^Citation37	People’s Republic of China	ACDF	23	NR	13–36	7
		ACCF	21	NR	13–36
Zhang et al^Citation38	People’s Republic of China	ACDF	15	50–64	12	7
		ACCF	17	52–68	12
Qi et al^Citation39	People’s Republic of China	ACDF	124	53.8±8.5	18–60	8
		ACCF	94	54.36±7.82	18–60
Jia et al^Citation40	People’s Republic of China	ACDF	31	48.83±8.12	28.96±13.21	8
		ACCF	36	49.12±7.65	26.81±11.02

Note: Age and follow-up data are expressed as either mean ± SD or as a range.

Abbreviations: ACDF, anterior cervical discectomy with fusion; ACCF, anterior cervical corpectomy with fusion; NR, not reported; NOS, Newcastle–Ottawa Scale; SD, standard deviation.

Figure 2 Comparison of anterior cervical discectomy with fusion or anterior cervical corpectomy with fusion for patients with cervical spondylotic myelopathy in terms of preoperative JOA and VAS scores.

Abbreviations: WMD, weighted mean difference; JOA, Japanese Orthopaedic Association; VAS, visual analog scale; CI, confidence interval.

Figure 3 Comparison of anterior cervical discectomy with fusion or anterior cervical corpectomy with fusion for patients with cervical spondylotic myelopathy in terms of postoperative JOA and VAS scores.

Note: Weights are from random-effects analysis.
Abbreviations: WMD, weighted mean difference; JOA, Japanese Orthopaedic Association; VAS, visual analog scale; CI, confidence interval.

Figure 4 Comparison of anterior cervical discectomy with fusion or anterior cervical corpectomy with fusion for patients with cervical spondylotic myelopathy in terms of hospital stay.

Note: Weights are from random-effects analysis.
Abbreviations: WMD, weighted mean difference; CI, confidence interval.

Figure 5 Comparison of anterior cervical discectomy with fusion or anterior cervical corpectomy with fusion for patients with cervical spondylotic myelopathy in terms of operation time.

Note: Weights are from random-effects analysis.
Abbreviations: WMD, weighted mean difference; CI, confidence interval.

Figure 6 Comparison of anterior cervical discectomy with fusion or anterior cervical corpectomy with fusion for patients with cervical spondylotic myelopathy in terms of blood loss.

Note: Weights are from random-effects analysis.
Abbreviations: WMD, weighted mean difference; CI, confidence interval.

Figure 7 Comparison of anterior cervical discectomy with fusion or anterior cervical corpectomy with fusion for patients with cervical spondylotic myelopathy in terms of fusion rate and complication rate.

Note: Weights are from random-effects analysis.
Abbreviations: RR, risk ratio; CI, confidence interval.

Table 2 Summary of the RR of complications in patients with CSM

Complications	RR	95% CI	P-value
Donor site pain	0.21	0.06, 0.72	0.012
Graft dislodgment	0.25	0.09, 0.73	0.012
C5 palsy	0.31	0.10, 0.98	0.047
Titanium mesh subsidence	0.30	0.10, 0.89	0.030
Dysphagia	1.07	0.61, 1.87	0.810
Hoarseness	0.91	0.39, 2.14	0.835
Hematoma	0.66	0.20, 2.20	0.502
Pseudoarthrosis	1.08	0.28, 4.20	0.911
CSF leaks	1.75	0.48, 6.36	0.398
Infection	0.47	0.13, 1.78	0.266

Abbreviations: RR, risk ratio; CSM, cervical spondylotic myelopathy; CSF, cerebrospinal fluid; CI, confidence interval.

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