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Identification of head control deficits following anterior cervical discectomy and fusion in patients with cervical spondylotic myelopathy

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Abstract

Purpose

To investigate the presence of head control deficits and its course of recovery after anterior cervical discectomy and fusion (ACDF) surgery in cervical spondylotic myelopathy (CSM) patients.

Methods

Thirty-seven CSM patients were assessed for their C2–C7 cervical lordosis, neck Range of Motion (ROM), repositioning accuracy, neck strength as well as surface electromyography of the neck muscle activities during slow head motions. Assessments were performed preoperatively and then at 3- and 6-month postoperatively.

Results

No significant difference was found for the C2–C7 cervical lordosis postoperatively at 6-month. ROM was restricted immediately after surgery but recovered over time, however, neck strength remained significantly reduced postoperatively. Reposition accuracy improved immediately after surgery but declined again at 6-month follow-up. In addition, muscle activities required to control head motions showed a continuous reduction postoperatively.

Conclusions

Adequate C2–C7 cervical lordosis was maintained in the current study with improvement of slow head motion control and ROM at 6-month. However, improvement in head position sense was not maintained and neck strength showed continuous declination overtime. Assessment and monitoring of head control deficits should be routinely considered in CSM patients.

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Acknowledgments

This study was supported by research grants from the Ministry of Science and Technology, Taiwan (101-2221-E-002-060-MY3), and the Healthy Aging Research Center, Chang Gung University, Taiwan (EMRPD1D0291 and CMRPD1B0332). None of the authors have any personal or institutional financial interest in drugs, materials, or devices described in this manuscript submission.

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Correspondence to Jaw-Lin Wang.

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Cheng, CH., Chien, A., Hsu, WL. et al. Identification of head control deficits following anterior cervical discectomy and fusion in patients with cervical spondylotic myelopathy. Eur Spine J 25, 1855–1860 (2016). https://doi.org/10.1007/s00586-015-4368-1

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  • DOI: https://doi.org/10.1007/s00586-015-4368-1

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