ArticleInternational orthopaedics2026
Early retrospective experience reporting short-term outcomes of a cementless modular diaphyseal stem in complex revision reverse total shoulder arthroplasty.
Article in International orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundCementless modular diaphyseal press-fi t stems (MDS) development has provided an alternative to traditional cemented fixation in extensive humeral bone loss, achieving stability and reducing cement-related complications in early follow-up.
objectiveTo evaluate clinical and radiographic outcomes of revision rTSA using the cementless press-fit MDS. Assess early postoperative survival and the effectiveness of this fixation strategy in complex revision cases.
methodsRetrospective study (January2023-May2024), including 14 shoulders undergoing revision rTSA using MDS and a minimum 24-month follow-up. Functional outcomes were assessed using Constant, ASES, ADLEIR, VAS, and SST scores, and range of movement (ROM). Radiographic assessments determined fixation stability and loosening.
resultsMean follow-up was 30.1 months. Indications for surgery included infection (n=8), periprosthetic fracture (n=5), and failed hemiarthroplasty (n=1). Postoperative ROM improved, with mean forward elevation of 114.6°, abduction of 95.7°, and external rotation of 25.4°. Functional scores also increased (Constant: 36.6→55.9; ASES: 31.4→61; VAS: 7.9→2.8). No implant loosening, instability, or postoperative fractures were recorded. Two acute infections, successfully treated without revision and one asymptomatic non-traumatic humeral stem disengagement.
conclusionCementless modular diaphyseal press-fi t stems demonstrated satisfactory early clinical and radiographic outcomes in complex revision rTSA and may represent a valuable option when proximal metaphyseal fixation cannot be achieved. Further studies with larger cohorts and longer follow-up are required to confirm their long-term durability and performance.
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