Does correction of reverse shoulder arthroplasty angle improve clinical outcomes in cuff tear arthropathy?
Does correction of reverse shoulder arthroplasty angle improve clinical outcomes in cuff tear arthropathy?
Objective: The aim of this study was to investigate the impact of correction of the reverse shoulder arthroplasty (RSA) angle on clinical outcomes in patients with cuff tear arthropathy (CTA). Methods: This single-center retrospective study was conducted in patients with CTA treated with RSA between 2013 and 2018. A structured questionnaire collecting demographic data, postoperative follow-up time, pre- and postoperative range of motion (ROM), American Shoulder and Elbow Surgeons (ASES) and Constant functional scores as well as scapular notching according to the Sirveaux Classification and RSA angle were evaluated by independent observers. The association between functional outcomes and RSA angle was analyzed using a curve estimation approach. Results: Seventy-four patients with a mean age of 69.4 ± 8 years and mean follow-up period of 38.2 ± 10.8 months were included the study. The medialized inlay component was implanted in 35 patients, and the lateralized onlay component was used in 39 patients. The mean preoperative ASES and Constant scores improved from 28.4 ± 5.1 and 31.1 ± 5.9 to 73.4 ± 23.3 and 70.5 ± 16, respectively, at the last follow-up (both P < 0.001). The mean pre- and postoperative RSA angles were measured to be 21.3 ± 9.3° and 5.5 ± 10.1°, respectively, on X-ray. The postoperative RSA angle was 10.4 ± 10.3° in computerized tomography (CT) scans. There was an excellent correlation between X-ray and CT measurements (rs: 0.971, P < 0.001). It was found that patients with good postoperative functional scores tended to have an RSA angle of 0-10° postoperatively. The delta internal rotation of the medialized design group was greater than that of the lateralized design group (P = 0.029). Conclusion: In patients undergoing RSA for CTA, satisfactory clinical outcomes can be obtained by achieving a postoperative RSA angle of 0-10° with an asymmetrical inferior reaming technique.
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- 1. Grammont PTP, Laffay JP, Deries X. Concept study and realization of a new total shoulder prosthesis. Rhumatologie. 1987;39 (1) :407-418.
- 2. Familiari F, Rojas J, Nedim Doral M, Huri G, McFarland EG. Reverse total shoulder arthroplasty. EFORT Open Rev. 2018;3(2):58-69. 10.1302/2058-5241. 3.170044
- 3. Rugg CM, Coughlan MJ, Lansdown DA. Reverse total shoulder arthroplasty: Biomechanics and indications. Curr Rev Musculoskelet Med. 2019;12(4):542- 553. 10.1007/s12178-019-09586-y
- 4. Boileau P, Moineau G, Roussanne Y, O’Shea K. Bony increased-offset reversed shoulder arthroplasty: Minimizing scapular impingement while maximizing glenoid fixation. Clin Orthop Relat Res. 2011;469(9):2558-2567. 10.1007/ s11999-011-1775-4
- 5. Dilisio MF, Warner JJ, Walch G. Accuracy of the subchondral smile and surface referencing techniques in reverse shoulder arthroplasty. Orthopedics. 2016;39 (4):e615-620. 10.3928/01477447-20160610-04
- 6. Edwards TB, Trappey GJ, Riley C, O’Connor DP, Elkousy HA, Gartsman GM. Inferior tilt of the glenoid component does not decrease scapular notching in reverse shoulder arthroplasty: Results of a prospective randomized study. J Shoulder Elbow Surg. 2012;21(5):641-646. 10.1016/j.jse.2011.08.057
- 7. Laver L, Garrigues GE. Avoiding superior tilt in reverse shoulder arthroplasty: A review of the literature and technical recommendations. J Shoulder Elbow Surg. 2014;23(10):1582-1590. 10.1016/j.jse.2014.06.029
- 8. Nyffeler RW, Werner CM, Gerber C. Biomechanical relevance of glenoid component positioning in the reverse delta iii total shoulder prosthesis. J Shoulder Elbow Surg. 2005;14(5):524-528. 10.1016/j.jse.2004.09.010
- 9. Boileau P, Gauci MO, Wagner ER, et al. The reverse shoulder arthroplasty angle: A new measurement of glenoid inclination for reverse shoulder arthroplasty. J Shoulder Elbow Surg. 2019;28(7):1281-1290. 10.1016/j.jse.2018.11.074
- 10. Constant CR MA.. A clinical method of functional assessment of the shoulder. Clin Orthop Relat Res 1. 1987;(214):160-164.
- 11. Michener LA, McClure PW, Sennett BJ. American shoulder and elbow sur- geons standardized shoulder assessment form, patient self-report section: Re- liability, validity, and responsiveness. J Shoulder Elbow Surg. 2002;11(6):587- 594. 10.1067/mse.2002.127096
- 12. Sirveaux F, Favard L, Oudet D, Huquet D, Walch G, Mole D. Grammont inverted total shoulder arthroplasty in the treatment of glenohumeral osteoarthritis with massive rupture of the cuff. Results of a multicentre study of 80 shoulders. J Bone Joint Surg Br. 2004;86(3):388-395. 10.1302/0301-620X.86B3.14024
- 13. Kandemir U, Allaire RB, Jolly JT, Debski RE, McMahon PJ. The relationship between the orientation of the glenoid and tears of the rotator cuff. J Bone Joint Surg Br. 2006;88-B(8):1105-1109. 10.1302/0301-620X.88B8.17732
- 14. Konrad GG, Markmiller M, Jolly JT, et al. Decreasing glenoid inclination im- proves function in shoulders with simulated massive rotator cuff tears. Clin Biomech (Bristol, Avon). 2006;21(9):942-949. 10.1016/j.clinbiomech.2006.04. 013
- 15. Greiner S, Schmidt C, Herrmann S, Pauly S, Perka C. Clinical performance of lateralized versus non-lateralized reverse shoulder arthroplasty: A prospective randomized study. J Shoulder Elbow Surg. 2015;24(9):1397-1404. 10.1016/j.jse. 2015.05.041
- 16. Athwal GS, MacDermid JC, Reddy KM, Marsh JP, Faber KJ, Drosdowech D. Does bony increased-offset reverse shoulder arthroplasty decrease scapular notching? J Shoulder Elbow Surg. 2015;24(3):468-473. 10.1016/j.jse.2014.08.015
- 17. Collin P, Liu X, Denard PJ, Gain S, Nowak A, Ladermann A. Standard versus bony increased-offset reverse shoulder arthroplasty: A retrospective compara- tive cohort study. J Shoulder Elbow Surg. 2018;27(1):59-64. 10.1016/j.jse.2017. 07.020
- 18. Jones RBWT, Roche CP. Bone grafting the glenoid versus use of augmented glenoid baseplates with reverse shoulder arthroplasty. Bull Hosp Jt Dis(2013). 2015;73(Suppl 1):S129-S135.
- 19. Favard L, Berhouet J, Walch G, Chaoui J, Levigne C. Superior glenoid inclina- tion and glenoid bone loss: Definition, assessment, biomechanical conse- quences, and surgical options. Orthopade. 2017;46(12):1015-1021. 10.1007/ s00132-017-3496-1
- 20. Kelly JD2nd, Humphrey CS, Norris TR. Optimizing glenosphere position and fixation in reverse shoulder arthroplasty, part one: The twelve-mm rule. J Shoulder Elbow Surg. 2008;17(4):589-594. 10.1016/j.jse.2007.08.013
- 21. Randelli P, Randelli F, Arrigoni P, et al. Optimal glenoid component inclination in reverse shoulder arthroplasty. How to improve implant stability. Musculos- kelet Surg. 2014;98(Suppl 1):15-18. 10.1007/s12306-014-0324-1
- 22. Roche CPDP, Hamilton M, Crosby LA, et al. Impact of inferior glenoid tilt, humeral retroversion, bone grafting, and design parameters on muscle length and deltoid wrapping in reverse shoulder arthroplasty.. Bull Hosp Jt Dis (2013). 2013;71(4):284-293.
- 23. Tashjian RZ, Martin BI, Ricketts CA, Henninger HB, Granger EK, Chalmers PN. Superior baseplate inclination is associated with instability after reverse total shoulder arthroplasty. Clin Orthop Relat Res. 2018;476(8):1622-1629. 10.1097/ CORR.0000000000000340
- 24. Duethman NC, Aibinder WR, Nguyen NTV, Sanchez-Sotelo J. The influence of glenoid component position on scapular notching: A detailed radiographic analysis at midterm follow-up. JSES Int. 2020;4(1):144-150. 10.1016/j.jses. 2019.11.004
- 25. Beltrame A, Di Benedetto P, Cicuto C, Cainero V, Chisoni R, Causero A. Onlay versus inlay humeral steam in reverse shoulder arthroplasty (rsa): Clinical and biomechanical study. Acta Biomed. 2019;90(12-S):54-63.
- 26. Sheth U, Saltzman M. Reverse total shoulder arthroplasty: Implant design considerations. Curr Rev Musculoskelet Med. 2019;12(4):554-561. 10.1007/ s12178-019-09585-z
- 27. Werthel JD, Walch G, Vegehan E, Deransart P, Sanchez-Sotelo J, Valenti P. Lateralization in reverse shoulder arthroplasty: A descriptive analysis of different implants in current practice. Int Orthop. 2019;43(10):2349-2360. 10. 1007/s00264-019-04365-3
- 28. Helmkamp JK, Bullock GS, Amilo NR, et al. The clinical and radiographic impact of center of rotation lateralization in reverse shoulder arthroplasty: A systematic review. J Shoulder Elbow Surg. 2018;27(11):2099-2107. 10.1016/ j.jse.2018.07.007
- 29. Parry S, Stachler S, Mahylis J. Lateralization in reverse shoulder arthroplasty: A review. J Orthop. 2020;22:64-67. 10.1016/j.jor.2020.03.027