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Combined Subscapularis Tears in Massive Posterosuperior Rotator Cuff Tears: Do They Affect Postoperative Shoulder Function and Rotator Cuff Integrity?
Am J Sports Med. 2016 Jan; 44(1):183-90.AJ

Abstract

BACKGROUND

Previous studies on massive rotator cuff tears have not addressed the outcomes of tears extending to the subscapularis tendon.

HYPOTHESIS

The retear rate in patients with a massive posterosuperior rotator cuff tear combined with a subscapularis tear is higher than that in patients with a massive posterosuperior rotator cuff tear with an intact subscapularis tendon.

STUDY DESIGN

Cohort study; Level of evidence, 3.

METHODS

Data were collected and analyzed from 92 consecutive patients who underwent arthroscopic repair of a massive posterosuperior rotator cuff tear. Patients were divided into 3 groups according to the status of the subscapularis tendon: intact subscapularis tendon (I-massive tear; n = 42), tear involving half or less than half of the subscapularis tendon (S-massive tear; n = 22), and tear involving more than half of the subscapularis tendon (L-massive tear; n = 28). The integrity of the rotator cuff was determined by ultrasonography at 4.5 and 12 months or later after surgery. Clinical evaluations were performed using the visual analog scale (VAS) pain score, the American Shoulder and Elbow Surgeons (ASES) score, the Constant score, and active shoulder range of motion. Data were collected on the day before surgery and at final follow-up (at least 24 months postoperatively).

RESULTS

A total of 25 retears (27%) were identified based on an ultrasonographic evaluation. Although statistical significance was not found, there was a trend toward a higher retear rate in patients with an L-massive tear (43%) compared with those with an S-massive tear (18%; P = .050) or I-massive tear (21%; P = .059) at final follow-up. The subclassification of retears according to the involved tendons revealed that subsequent retears of the subscapularis tendon were noted only in patients with an L-massive tear. In patients with an L-massive tear, postoperative data comparison between patients with intact subscapularis tendons and those with failed subscapularis tendons revealed that a significant difference was noted in the VAS (1.1 vs 3.8, respectively) and ASES (90.6 vs 58.5, respectively) scores. The improvement in clinical scores after repair was statistically significant in all groups but not different between the groups.

CONCLUSION

The arthroscopic repair of massive tears results in substantial improvements in shoulder function, regardless of the presence of combined subscapularis tears. However, this study showed a trend toward a high failure rate for the repair of massive posterosuperior rotator cuff tears extending over half of the subscapularis tendon. Therefore, other treatment options should also be considered for this type of rotator cuff tear.

Authors+Show Affiliations

Neon Orthopaedic Surgery, Seoul, South Korea.Konkuk University School of Medicine, Seoul, South Korea.Konkuk University School of Medicine, Seoul, South Korea.Konkuk University School of Medicine, Seoul, South Korea.Neon Orthopaedic Surgery, Seoul, South Korea.Konkuk University School of Medicine, Seoul, South Korea.Konkuk University School of Medicine, Seoul, South Korea orthopaedics11@gmail.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26564791

Citation

Park, Jin-Young, et al. "Combined Subscapularis Tears in Massive Posterosuperior Rotator Cuff Tears: Do They Affect Postoperative Shoulder Function and Rotator Cuff Integrity?" The American Journal of Sports Medicine, vol. 44, no. 1, 2016, pp. 183-90.
Park JY, Chung SW, Lee SJ, et al. Combined Subscapularis Tears in Massive Posterosuperior Rotator Cuff Tears: Do They Affect Postoperative Shoulder Function and Rotator Cuff Integrity? Am J Sports Med. 2016;44(1):183-90.
Park, J. Y., Chung, S. W., Lee, S. J., Cho, H. W., Lee, J. H., Lee, J. H., & Oh, K. S. (2016). Combined Subscapularis Tears in Massive Posterosuperior Rotator Cuff Tears: Do They Affect Postoperative Shoulder Function and Rotator Cuff Integrity? The American Journal of Sports Medicine, 44(1), 183-90. https://doi.org/10.1177/0363546515610552
Park JY, et al. Combined Subscapularis Tears in Massive Posterosuperior Rotator Cuff Tears: Do They Affect Postoperative Shoulder Function and Rotator Cuff Integrity. Am J Sports Med. 2016;44(1):183-90. PubMed PMID: 26564791.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Combined Subscapularis Tears in Massive Posterosuperior Rotator Cuff Tears: Do They Affect Postoperative Shoulder Function and Rotator Cuff Integrity? AU - Park,Jin-Young, AU - Chung,Seok Won, AU - Lee,Seoung-Joon, AU - Cho,Hyoung-Weon, AU - Lee,Jae Hyung, AU - Lee,Jun-Hee, AU - Oh,Kyung-Soo, Y1 - 2015/11/12/ PY - 2015/11/14/entrez PY - 2015/11/14/pubmed PY - 2016/8/2/medline KW - integrity KW - massive tear KW - rotator cuff KW - subscapularis tear SP - 183 EP - 90 JF - The American journal of sports medicine JO - Am J Sports Med VL - 44 IS - 1 N2 - BACKGROUND: Previous studies on massive rotator cuff tears have not addressed the outcomes of tears extending to the subscapularis tendon. HYPOTHESIS: The retear rate in patients with a massive posterosuperior rotator cuff tear combined with a subscapularis tear is higher than that in patients with a massive posterosuperior rotator cuff tear with an intact subscapularis tendon. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were collected and analyzed from 92 consecutive patients who underwent arthroscopic repair of a massive posterosuperior rotator cuff tear. Patients were divided into 3 groups according to the status of the subscapularis tendon: intact subscapularis tendon (I-massive tear; n = 42), tear involving half or less than half of the subscapularis tendon (S-massive tear; n = 22), and tear involving more than half of the subscapularis tendon (L-massive tear; n = 28). The integrity of the rotator cuff was determined by ultrasonography at 4.5 and 12 months or later after surgery. Clinical evaluations were performed using the visual analog scale (VAS) pain score, the American Shoulder and Elbow Surgeons (ASES) score, the Constant score, and active shoulder range of motion. Data were collected on the day before surgery and at final follow-up (at least 24 months postoperatively). RESULTS: A total of 25 retears (27%) were identified based on an ultrasonographic evaluation. Although statistical significance was not found, there was a trend toward a higher retear rate in patients with an L-massive tear (43%) compared with those with an S-massive tear (18%; P = .050) or I-massive tear (21%; P = .059) at final follow-up. The subclassification of retears according to the involved tendons revealed that subsequent retears of the subscapularis tendon were noted only in patients with an L-massive tear. In patients with an L-massive tear, postoperative data comparison between patients with intact subscapularis tendons and those with failed subscapularis tendons revealed that a significant difference was noted in the VAS (1.1 vs 3.8, respectively) and ASES (90.6 vs 58.5, respectively) scores. The improvement in clinical scores after repair was statistically significant in all groups but not different between the groups. CONCLUSION: The arthroscopic repair of massive tears results in substantial improvements in shoulder function, regardless of the presence of combined subscapularis tears. However, this study showed a trend toward a high failure rate for the repair of massive posterosuperior rotator cuff tears extending over half of the subscapularis tendon. Therefore, other treatment options should also be considered for this type of rotator cuff tear. SN - 1552-3365 UR - https://www.unboundmedicine.com/medline/citation/26564791/Combined_Subscapularis_Tears_in_Massive_Posterosuperior_Rotator_Cuff_Tears:_Do_They_Affect_Postoperative_Shoulder_Function_and_Rotator_Cuff_Integrity L2 - http://journals.sagepub.com/doi/full/10.1177/0363546515610552?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -