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Subclavius posticus: an anomalous muscle in association with suprascapular nerve compression in an athlete

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HAND

Abstract

Subclavius posticus is a rare anomalous muscle that traverses from the costal cartilage of the first rib posterolaterally to the superior border of the scapula. We present an athlete who presented with incapacitating suprascapular nerve compression associated with a subclavius posticus diagnosed by MRI. Symptoms were relieved, and function was restored by decompression of the nerve and excision of the anomalous muscle. We present this case to bring awareness of the subclavius posticus as an anatomic variant and a potential additional source for compression in suprascapular neuropathy. We recommend high-resolution magnetic resonance imaging to evaluate cases of isolated suprascapular neuropathy.

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References

  1. Akita K, Ibukuro K, Yamaguchi K, Heima S, Sato T. The subclavius posticus muscle: a factor in arterial, venous or brachial plexus compression? Surg Radiol Anat. 2000;22(2):111–5.

    Article  CAS  PubMed  Google Scholar 

  2. Akita K, Tsuboi Y, Sakamoto H, Sato T. A case of muscle subclavius posticus with special reference to its innervation. Surg Radiol Anat. 1996;18(4):335–7.

    Article  CAS  PubMed  Google Scholar 

  3. Bodily KD, Spinner RJ, Sin AY, Bishop AT. Clinical significance of suprascapular nerve mobilization. Clin Anat. 2005;18(8):573–9.

    Article  PubMed  Google Scholar 

  4. Forcada P, Rodriguez-Niedenfuhr M, Liusa M, Carrera A. Subclavius posticus muscle: supernumerary muscle as a potential cause for thoracic outlet syndrome. Clin Anat. 2001;14(1):55–7.

    Article  CAS  PubMed  Google Scholar 

  5. Kutoglu T, Ulucam E, Gurbuz H. A case of the subclavius posticus muscle. Trakia J Sci. 2005;3(1):77–8.

    Google Scholar 

  6. Moen TC, Babatunde OM, Hsu SH, Ahmad CS, Levine WN. Suprascapular neuropathy: what does the literature show? J Shoulder Elbow Surg. 2012;21(6):835–46.

    Article  PubMed  Google Scholar 

  7. Niemann AJ, Juzeszyn LS, Kahanov L, Eberman LE. Suprascapular neuropathy in collegiate baseball player. Asian J Sports Med. 2013;4(1):76–81.

    Google Scholar 

  8. Ozcakar L, Guney MS, Ozdag F, Alay S, Kiralp MZ, Gorur R, et al. A sledgehammer on the brachial plexus: thoracic outlet syndrome, subclavius posticus muscle, and traction in aggregate. Arch Phys Med Rehabil. 2010;91:656–8.

    Article  PubMed  Google Scholar 

  9. Roos D. Congenital anomalies associated with thoracic outlet syndrome. Anatomy, symptoms, diagnosis and treatment. Am J Surg. 1976;132:771–8.

    Article  CAS  PubMed  Google Scholar 

  10. Sarikcioglu L, Sindel M. A case with subclavius posticus muscle. Folia Morphol. 2001;60(3):229–31.

    CAS  Google Scholar 

  11. Shetty YP, Pai MM, Prabhu LV, Vadgaonkar R, Nayak SR, Shivanandan R. The subclavius posticus muscle: its phylogenetic retention and clinical relevance. Int J Morphol. 2006;24(4):599–600.

    Article  Google Scholar 

  12. Sievert T, Maike HW, Wildmeister W. Paget-von Schroetter syndrome: case description in the light of the literature. Z Gesamte Inn Med. 1991;46:375–80.

    CAS  PubMed  Google Scholar 

  13. Singhal S, Rao V, Manjunath KY. Subclavius posticus muscle—a case report. Int J Morphol. 2008;26(4):813–5.

    Article  Google Scholar 

  14. Tanaka S, Zukeran C, Nakagawa S. A macroscopical study of the subclavius muscle of rat. Anat Anz. 1998;165(5):417–24.

    Google Scholar 

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Conflict of Interest

Ashley C. Cogar declares that she has no conflict of interest.

Parker H. Johnsen declares that he has no conflict of interest.

Hollis G. Potter declares that she has no conflict of interest.

Scott W. Wolfe declares that he has no conflict of interest.

Statement of Human and Animal Rights

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 [10].

Statement of Informed Consent

Informed consent was obtained from all patients for being included in the study.

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Authors and Affiliations

  1. The Hospital for Special Surgery, 535 E 70th Street, New York, NY, 10021, USA

    Ashley C. Cogar, Parker H. Johnsen, Hollis G. Potter & Scott W. Wolfe

Authors
  1. Ashley C. Cogar
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  2. Parker H. Johnsen
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  3. Hollis G. Potter
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  4. Scott W. Wolfe
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Corresponding author

Correspondence to Scott W. Wolfe.

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None of the authors has a financial interest in any of the products, devices, or drugs mentioned in this manuscript.

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Cogar, A.C., Johnsen, P.H., Potter, H.G. et al. Subclavius posticus: an anomalous muscle in association with suprascapular nerve compression in an athlete. HAND 10, 76–79 (2015). https://doi.org/10.1007/s11552-014-9652-8

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  • DOI: https://doi.org/10.1007/s11552-014-9652-8

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