Interstitial Tear of the Subscapularis Tendon, Arthroscopic Findings and Technique of Repair

Document Type : TECHNICAL NOTE


Hamadan University of Medical Sciences, Hamadan, Iran


Tears of the subscapularis tendon have been significantly recognized as a source of shoulder pain and dysfunction in the past decade, thanks to arthroscopic evaluation of the shoulder and biomechanical and anatomical studies of the tendon. Current classification of subscapularis tendon tear is based on insertion site of the tendon. Recently, a classification for non-insertional types of subscapularis tendon tear has been published. Interstitial tear of subscapularis tendon has not been described in classifications available in the literature. This report describes significant interstitial tear of the subscapularis tendon. This tear looks normal in superior, bursal and articular sides. Then its specific arthroscopic findings as "Air bag sign" and repair technique of the pathology is explained .


Main Subjects

  1. References

    1. Dierckman BD, Shah NR, Larose CR, Gerbrandt S, Getelman MH. Non-insertional tendinopathy of the subscapularis. Int J Shoulder Surg. 2013; 7(3):83-90.
    2. Lafosse L, Jost B, Reiland Y, Audebert S, Toussaint B, Gobezie R. Structural integrity and clinical outcomes after arthroscopic repair of isolated subscapularis tears. J Bone Joint Surg Am. 2007; 89(6):1184-93.
    3. Fox JA, Noerdlinger MA, Romeo AA. Arthroscopic subscapularis repair. Tech Shoulder Elbow Surg. 2003; 4(4):154-68.
    4. Toussaint B, Barth J, Charousset C, Godeneche A, Joudet T, Lefebvre Y, et al. New endoscopic classification for subscapularis lesions. Orthop Traumatol Surg Res. 2012; 98(8 Suppl):S186-92.
    5. Strauss EJ, Salata MJ, Kercher J, Barker JU, Bach BR Jr, McGill K, et al. Multimedia article. The arthroscopic management of partial-thickness rotator cuff tears: a systematic review of the literature. Arthroscopy. 2011; 27(4):568-80.
    6. Adams CR, Schoolfield JD, Burkhart SS. Accuracy of preoperative magnetic resonance imaging in predicting a subscapularis tendon tear based on arthroscopy. Arthroscopy. 2010; 26(11):1427-33.
    7. Brady PC, Denard PJ. The cowboy’s companion: a trail guide for the arthroscopic shoulder surgeon. Philadelphia, PA: Lippincott Williams & Wilkins; 2012. P. 120.
    8. Snyder SJ, Karzel RP, Getelman MH, Burns JP, Bahk MS, Auerbach DM. Shoulder arthroscopy. Philadelphia, PA: Lippincott Williams & Wilkins; 2015. P. 309.
    9. Yoo JC, Rhee YG, Shin SJ, Park YB, McGarry MH, Jun BJ, et al. Subscapularis tendon tear classification based on 3-dimensional anatomic footprint: a cadaveric and prospective clinical observational study. Arthroscopy. 2015; 31(1):19-28.