Abstract
Purpose
The purpose of this study was to clinically validate the Hill–Sachs interval to glenoid track width ratio (H/G ratio) compared with the instability severity index (ISI) score for predicting an increased risk of recurrent instability after arthroscopic Bankart repair.
Methods
A retrospective evaluation was performed using data from patients with anteroinferior shoulder instability who underwent arthroscopic Bankart repair with a follow-up period of at least 24 months. A receiver operating characteristic (ROC) curve was used to determine the optimal cut-off values for the H/G ratio and the ISI score to predict an increased risk of recurrent instability. The area under the ROC curve (AUC) of the two methods and the sensitivity and specificity of their optimal cut-off values were compared.
Results
A total of 222 patients were included, among whom 31 (14.0%) experienced recurrent instability during the follow-up period. The optimal cut-off values for predicting an increased risk of recurrent instability were an H/G ratio of ≥ 0.7 and ISI score of ≥ 4. There were no significant differences between the AUC of the two methods (H/G ratio AUC = 0.821, standard error = 0.035 and ISI score AUC = 0.792, standard error = 0.04; n.s.) nor between the sensitivity and specificity of the optimal cut-off values (n.s. and n.s., respectively).
Conclusions
The H/G ratio is comparable to the ISI score for predicting an increased risk of recurrent instability after arthroscopic Bankart repair. Surgeons are recommended to consider other strategies to treat anterior shoulder instability if H/G ratio is ≥ 0.7.
Level of evidence
III.
Similar content being viewed by others
References
Ahmed I, Ashton F, Robinson CM (2012) Arthroscopic Bankart repair and capsular shift for recurrent anterior shoulder instability: functional outcomes and identification of risk factors for recurrence. J Bone Joint Surg Am 94:1308–1315
Balg F, Boileau P (2007) The instability severity index score. A simple pre-operative score to select patients for arthroscopic or open shoulder stabilisation. J Bone Joint Surg Br 89:1470–1477
Boileau P, Villalba M, Hery JY, Balg F, Ahrens P, Neyton L (2006) Risk factors for recurrence of shoulder instability after arthroscopic Bankart repair. J Bone Joint Surg Am 88:1755–1763
Boughebri O, Maqdes A, Moraiti C, Dib C, Leclere FM, Valenti P (2015) Results of 45 arthroscopic Bankart procedures: Does the ISIS remain a reliable prognostic assessment after 5 years? Eur J Orthop Surg Traumatol 25:709–716
Burkhart SS, De Beer JF (2000) Traumatic glenohumeral bone defects and their relationship to failure of arthroscopic Bankart repairs: significance of the inverted-pear glenoid and the humeral engaging Hill-Sachs lesion. Arthroscopy 16:677–694
Chung SW, Han SS, Lee JW, Oh KS, Kim NR, Yoon JP et al (2018) Automated detection and classification of the proximal humerus fracture by using deep learning algorithm. Acta Orthop 89:468–473
Di Giacomo G, Peebles LA, Pugliese M, Dekker TJ, Golijanin P, Sanchez A et al (2020) Glenoid track instability management score: radiographic modification of the instability severity index score. Arthroscopy 36:56–67
Di Giacomo G, Piscitelli L, Pugliese M (2018) The role of bone in glenohumeral stability. EFORT Open Rev 3:632–640
Faul F, Erdfelder E, Lang AG, Buchner A (2007) G*Power 3: a flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behav Res Methods 39:175–191
Gagey OJ, Gagey N (2001) The hyperabduction test. J Bone Joint Surg Br 83:69–74
Gyftopoulos S, Beltran LS, Bookman J, Rokito A (2015) MRI evaluation of bipolar bone loss using the on-track off-track method: a feasibility study. AJR Am J Roentgenol 205:848–852
Hatta T, Yamamoto N, Shinagawa K, Kawakami J, Itoi E (2019) Surgical decision making based on the on-track/off-track concept for anterior shoulder instability: a case-control study. JSES Open Access 3:25–28
Lee SH, Lim KH, Kim JW (2018) Risk factors for recurrence of anterior-inferior instability of the shoulder after arthroscopic bankart repair in patients younger than 30 years. Arthroscopy 34:2530–2536
Locher J, Wilken F, Beitzel K, Buchmann S, Longo UG, Denaro V et al (2016) Hill-Sachs off-track lesions as risk factor for recurrence of instability after arthroscopic bankart repair. Arthroscopy 32:1993–1999
Loppini M, Delle Rose G, Borroni M, Morenghi E, Pitino D, Dominguez Zamora C et al (2019) Is the instability severity index score a valid tool for predicting failure after primary arthroscopic stabilization for anterior glenohumeral instability? Arthroscopy 35:361–366
Mandrekar JN (2010) Receiver operating characteristic curve in diagnostic test assessment. J Thorac Oncol 5:1315–1316
Marshall T, Vega J, Siqueira M, Cagle R, Gelber JD, Saluan P (2017) Outcomes after arthroscopic bankart repair: patients with first-time versus recurrent dislocations. Am J Sports Med 45:1776–1782
Momaya AM, Tokish JM (2017) Applying the glenoid track concept in the management of patients with anterior shoulder instability. Curr Rev Musculoskelet Med 10:463–468
Ono Y, Davalos Herrera DA, Woodmass JM, Lemmex DB, Carroll MJ, Yamashita S et al (2019) Long-term outcomes following isolated arthroscopic Bankart repair: a 9- to 12-year follow-up. JSES Open Access 3:189–193
Phadnis J, Arnold C, Elmorsy A, Flannery M (2015) Utility of the instability severity index score in predicting failure after arthroscopic anterior stabilization of the shoulder. Am J Sports Med 43:1983–1988
Porcellini G, Campi F, Pegreffi F, Castagna A, Paladini P (2009) Predisposing factors for recurrent shoulder dislocation after arthroscopic treatment. J Bone Joint Surg Am 91:2537–2542
Rouleau DM, Hebert-Davies J, Djahangiri A, Godbout V, Pelet S, Balg F (2013) Validation of the instability shoulder index score in a multicenter reliability study in 114 consecutive cases. Am J Sports Med 41:278–282
Ruiz Iban MA, Asenjo Gismero CV, Moros Marco S, Ruiz Diaz R, Del Olmo HT, Del Monte BG et al (2019) Instability severity index score values below 7 do not predict recurrence after arthroscopic Bankart repair. Knee Surg Sports Traumatol Arthrosc 27:3905–3911
Shaha JS, Cook JB, Rowles DJ, Bottoni CR, Shaha SH, Tokish JM (2016) Clinical validation of the glenoid track concept in anterior glenohumeral instability. J Bone Joint Surg Am 98:1918–1923
Shanmugaraj A, Chai D, Sarraj M, Gohal C, Horner NS, Simunovic N et al (2020) Surgical stabilization of pediatric anterior shoulder instability yields high recurrence rates: a systematic review. Knee Surg Sports Traumatol Arthrosc. https://doi.org/10.1007/s00167-020-05913-w
Thomazeau H, Courage O, Barth J, Pelegri C, Charousset C, Lespagnol F et al (2010) Can we improve the indication for Bankart arthroscopic repair? A preliminary clinical study using the ISIS score. Orthop Traumatol Surg Res 96:S77–83
Thomazeau H, Langlais T, Hardy A, Curado J, Herisson O, Mouton J et al (2019) Long-term, prospective, multicenter study of isolated bankart repair for a patient selection method Based on the instability severity index score. Am J Sports Med 47:1057–1061
van der Linde JA, van Kampen DA, Terwee CB, Dijksman LM, Kleinjan G, Willems WJ (2011) Long-term results after arthroscopic shoulder stabilization using suture anchors: an 8- to 10-year follow-up. Am J Sports Med 39:2396–2403
van Gastel ML, Willigenburg NW, Dijksman LM, Lindeboom R, van den Bekerom MPJ, van der Hulst VPM et al (2019) Ten percent re-dislocation rate 13 years after the arthroscopic Bankart procedure. Knee Surg Sports Traumatol Arthrosc 27:3929–3936
Voos JE, Livermore RW, Feeley BT, Altchek DW, Williams RJ, Warren RF et al (2010) Prospective evaluation of arthroscopic bankart repairs for anterior instability. Am J Sports Med 38:302–307
Yamamoto N, Itoi E, Abe H, Minagawa H, Seki N, Shimada Y et al (2007) Contact between the glenoid and the humeral head in abduction, external rotation, and horizontal extension: a new concept of glenoid track. J Shoulder Elbow Surg 16:649–656
Yang TC, Chen KH, Chiang ER, Chang MC, Ma HL (2018) Using the "Hill–Sachs interval to glenoid track width ratio" for prediction of recurrent instability after arthroscopic Bankart repair. Orthop Traumatol Surg Res 104:797–801
Yian EH, Weathers M, Knott JR, Sodl JF, Spencer HT (2020) Predicting failure after primary arthroscopic Bankart repair: analysis of a statistical model using anatomic risk factors. Arthroscopy. https://doi.org/10.1016/j.arthro.2019.11.109
Acknowledgements
The author thanks the Biostatistics Task Force of Taipei Veterans General Hospital for their assistance with the statistical analysis.
Funding
No external funding was received.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors have no conflicts of interest regarding the issues presented in this article.
Ethical approval
The study was approved by the local Ethics committee (number: 2017-01-017AC).
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Chen, KH., Yang, TC., Chiang, ER. et al. The Hill–Sachs interval to glenoid track width ratio is comparable to the instability severity index score for predicting risk of recurrent instability after arthroscopic Bankart repair. Knee Surg Sports Traumatol Arthrosc 29, 250–256 (2021). https://doi.org/10.1007/s00167-020-05955-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00167-020-05955-0