Dislocation after reverse total shoulder arthroplasty using contemporary medialized modular systems. Can we still consider it such a frequent complication?

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dc.contributor.authorGarcia Fernandez, Carlos
dc.contributor.authorLópiz Morales, María Yaiza
dc.contributor.authorArvinius, Camilla
dc.contributor.authorPonz, Virginia
dc.contributor.authorAlcobía Diaz, Borja
dc.contributor.authorCheca, Pablo;
dc.contributor.authorGalán Olleros, Maria
dc.contributor.authorMarco Martínez, Fernando
dc.date.accessioned2024-08-09T09:02:45Z
dc.date.available2024-08-09T09:02:45Z
dc.date.issued2021-09-30
dc.description.abstractIntroduction: Improvement in reverse total shoulder arthroplasty (RTSA) prosthesis and technique has reduced the initially high complication and revision rates associated with this implant. However, instability continues to be a leading cause of reoperation after RTSA, being related in previous studies with medialized designs. The aim of this study was to determine the dislocation rate with the employment of two medialized modular systems of RTSA in our institution. Materials and methods: A retrospective review of two different modular systems of RTSA (SMR Modular Shoulder System and Delta XTEND Reverse Shoulder) was performed between 2009 and 2017 with a minimum 3-year follow-up. Baseline demographic, clinical (Constant, ASES and ROM), and radiographic data were collected. Characteristics of postoperative instability cases were also evaluated. Results: 237 primary RTSA (41% SMR/59% Delta) and 34 revision RTSA (44% SMR/56% Delta) with a mean follow-up of 75.6 ± 5.2 months (79.2 SMR/86.3 Delta, p = .586) were included in the present study. Indications for primary RTSA were osteoarthritis, rotator cuff tear arthropathy and massive irreparable rotator cuff tear (64%), acute fracture (32%), and fracture sequelae (4%). Subscapularis tendon was always repaired in degenerative pathology and tuberosities reattached in traumatic cases. The mean age of the global series was 76.5 ± 5.3 years (75.8 SMR/78.6 Delta, p = .104) with a mean Constant/ASES score at final follow-up of 68.5 ± 4.3/72.9 ± 20.3 (71/68 SMR and 69/74 Delta, p = .653 and .642). Only 2 patients (one acute fracture and one fracture sequelae) suffered an early postoperative anterior dislocation (before 3 months) which represents a rate of .84% in primary cases and .73% including revision surgery. Closed reduction manoeuvres were not successful, and both patients required revision surgery. At the end follow-up, both were stable and had no further dislocations. Conclusion: The dislocation rate after RTSA with the employment of two contemporary modular systems with a medialized centre of rotation is extremely low, especially when compared with the previously published series with the original Grammont design. Acute fracture and fracture sequelae were the main diagnoses associated with this instability. The reasons for the low dislocation rate are multifactorial, but the improvement in the baseplate position according to the more recent standards of "ideal position" and technical aspects such as subscapularis repair or tuberosity reattachment in fractures probably play an important role in this aspect.
dc.description.departmentDepto. de Cirugía
dc.description.facultyFac. de Medicina
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.citationGarcia-Fernandez C, Lopiz Y, Arvinius C, Ponz V, Alcobía-Diaz B, Checa P, Galán-Olleros M, Marco F. Dislocation after reverse total shoulder arthroplasty using contemporary medialized modular systems. Can we still consider it such a frequent complication? Eur J Orthop Surg Traumatol. 2022 Dec;32(8):1525-1534. doi: 10.1007/s00590-021-03131-9. Epub 2021 Sep 30. PMID: 34591167.
dc.identifier.doi10.1007/s00590-021-03131-9
dc.identifier.officialurlhttps://doi.org/10.1007/S00590-021-03131-9
dc.identifier.relatedurlhttps://link.springer.com/article/10.1007/s00590-021-03131-9
dc.identifier.urihttps://hdl.handle.net/20.500.14352/107458
dc.issue.number8
dc.journal.titleEuropean Journal of Orthopaedic Surgery and Traumatology
dc.language.isoeng
dc.page.final1534
dc.page.initial1525
dc.publisherSpringer
dc.rights.accessRightsrestricted access
dc.subject.cdu617.57
dc.subject.keywordDislocation arthroplasty
dc.subject.keywordReverse total shoulder arthroplasty
dc.subject.keywordReverse total shoulder arthroplasty complications
dc.subject.ucmSistema musculoesquelético
dc.subject.unesco3213.15 Traumatología
dc.titleDislocation after reverse total shoulder arthroplasty using contemporary medialized modular systems. Can we still consider it such a frequent complication?
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number32
dspace.entity.typePublication
relation.isAuthorOfPublicationac13f2b2-91f6-40be-8d94-1b716483e3b1
relation.isAuthorOfPublicatione160ced6-aec8-4bde-9f5f-5d5872dadf87
relation.isAuthorOfPublication.latestForDiscoveryac13f2b2-91f6-40be-8d94-1b716483e3b1
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