A Clinical Pilot Study Showing the Safety and Efficacy of Intramuscular Injection of Atelocollagen for Prevention of Paraspinal Muscle Atrophy after Spine Surgery

Hyun Jun Park, Jung Woo Hur, Jae Taek Hong, Sang Hyo Lee, Kang Bin Koo, Dong Hoon Kim

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Objective: The objective of this study was to assess the safety and efficacy of intramuscular injection of atelocollagen for the prevention of paraspinal muscle atrophy after spine surgery. Atelcollagen has been widely used as an intradermal filler to restore soft tissue defect. Many studies demonstrated that atelocollagen provides good therapeutic results by promoting cell proliferation and enhances the healing effect on injured connective tissues such as tendons and fasciae, while causing few complications. Methods: A total of 118 patients who underwent single level of posterior lumbar interbody fusion (PILF) between December 2017 and April 2019 were retrospectively reviewed. In the study group of 60 patients, 3 mL of gel-type 3% atelocollagen solution was prepared and injected into the multifidus muscle during wound closure. Clinical efficacy was evaluated by the improvement of back pain, elevation of a muscle enzyme, and inflammatory markers. Radiologic efficacy was evaluated with a comparison of density and cross-sectional area (CSA) of multifi-dus and erector spinae muscle in CT images. Results: Visual analogue scale (VAS) scores for back pain was not significantly lower in the study group postoperatively compared with the control group. The reduction of postoperative paraspinal muscle density and CSA was significantly lower in the study group. The serum level of muscle enzyme and inflammatory markers were significantly lower in the study group. No major procedure-related complications were observed during the follow-up period. Conclusion: Intramuscular injection of atelocollagen is safe and feasible for the prevention of paraspinal muscle atrophy after spine surgery. This novel method seems advantageous for ac-celerating wound healing without causing inflammation.

Original languageEnglish
Pages (from-to)251-258
Number of pages8
JournalJournal of Minimally Invasive Spine Surgery and Technique
Volume7
Issue number2
DOIs
StatePublished - Oct 2022

Bibliographical note

Publisher Copyright:
© 2022 Korean Minimally Invasive Spine Surgery Society.

Keywords

  • Atelocollagen
  • Intramuscular injection
  • Multifidus
  • Muscle atrophy
  • Paraspinal muscle

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