PMID- 37700436
OWN - NLM
STAT- Publisher
LR  - 20231221
IS  - 2192-5682 (Print)
IS  - 2192-5682 (Linking)
DP  - 2023 Sep 12
TI  - Atrophy of the Posterior Cricoarytenoid Muscle as an Indicator of a Recurrent 
      Laryngeal Nerve Injury History Before Revision Anterior Cervical Spine Surgery.
PG  - 21925682231200781
LID - 10.1177/21925682231200781 [doi]
AB  - STUDY DESIGN: Retrospective study. OBJECTIVES: In our recent study, we observed 
      some cases of symptomatic normal vocal cord motility instead of asymptomatic 
      vocal cord palsy (VCP) in preoperative laryngoscopy of a revision anterior 
      cervical spine surgery (ACSS) cohort. We assumed the intrinsic muscle atrophy 
      caused by recurrent laryngeal nerve injury could cause vocal cord-related 
      symptoms. Thus, radiological examinations were reviewed in relation to the 
      posterior cricoarytenoid (PCA) muscle, one of the intrinsic muscles. METHODS: We 
      retrospectively analyzed 64 patients who underwent a revision ACSS. Patients with 
      vocal cord-related symptoms were classified as symptomatic group (group S, n = 
      11), and those without symptoms as asymptomatic group (group AS, n = 53). The 
      bilateral size and signal intensity of the PCA muscles in these patients were 
      measured in the axial view with preoperative computed tomography (CT) and 
      magnetic resonance imaging (MRI) evaluations. Since the size and signal intensity 
      values were different on each image, the ratios of the contralateral and 
      ipsilateral muscle values were analyzed for each modality. RESULTS: There was no 
      VCP on laryngoscopy study. However, the mean ratio of the PCA muscle size on CT 
      was 1.40 +/- .37 in group S and 1.02 +/- .12 in group AS (P = .007). These values on 
      the MRI were 1.49 +/- .45 in group S and 1.02 +/- .14 in group AS, which was also a 
      significant difference (P = .008). CONCLUSIONS: Evaluating the size of the PCA 
      muscle before revision ACSS may predict a previous recurrent laryngeal nerve 
      injury. Careful planning for the appropriate approach should be undertaken if 
      vocal cord-related symptoms and atrophy of PCA muscle are evident.
FAU - Seok, Sang Yun
AU  - Seok SY
AD  - Department of Orthopedic Surgery, Daejeon Eulji Medical Center, Eulji University 
      School of Medicine, Daejeon, Korea.
FAU - Lee, Dong-Ho
AU  - Lee DH
AUID- ORCID: 0000-0003-3704-6355
AD  - Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan 
      College of Medicine, Seoul, Korea. RINGGOLD: 65526
FAU - Lee, Hyung Rae
AU  - Lee HR
AD  - Department of Orthopedic Surgery, Uijeongbu Eulji Medical Center, Eulji 
      University School of Medicine, Uijeongbu, Korea.
FAU - Cho, Jae Hwan
AU  - Cho JH
AUID- ORCID: 0000-0002-1178-9778
AD  - Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan 
      College of Medicine, Seoul, Korea. RINGGOLD: 65526
FAU - Hwang, Chang Ju
AU  - Hwang CJ
AUID- ORCID: 0000-0001-5666-3135
AD  - Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan 
      College of Medicine, Seoul, Korea. RINGGOLD: 65526
FAU - Park, Sehan
AU  - Park S
AUID- ORCID: 0000-0001-8959-8579
AD  - Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan 
      College of Medicine, Seoul, Korea. RINGGOLD: 65526
LA  - eng
PT  - Journal Article
DEP - 20230912
PL  - England
TA  - Global Spine J
JT  - Global spine journal
JID - 101596156
OTO - NOTNLM
OT  - anterior cervical spine surgery
OT  - laryngoscopy
OT  - posterior cricoarytenoid muscle
OT  - recurrent laryngeal nerve
OT  - revision anterior surgery
OT  - vocal cord palsy
COIS- Declaration of Conflicting InterestsThe author(s) declared no potential conflicts 
      of interest with respect to the research, authorship, and/or publication of this 
      article.
EDAT- 2023/09/13 06:41
MHDA- 2023/09/13 06:41
CRDT- 2023/09/13 00:12
PHST- 2023/09/13 06:41 [pubmed]
PHST- 2023/09/13 06:41 [medline]
PHST- 2023/09/13 00:12 [entrez]
AID - 10.1177/21925682231200781 [doi]
PST - aheadofprint
SO  - Global Spine J. 2023 Sep 12:21925682231200781. doi: 10.1177/21925682231200781.