Optimized prosthetic design, surgical technique, and cosmetic outcome in shoulder reconstruction with double-constrained implant following extra-articular shoulder resection: a proof-of-concept
Jazyk angličtina Země Velká Británie, Anglie Médium electronic
Typ dokumentu časopisecké články, kazuistiky
PubMed
40380345
PubMed Central
PMC12083034
DOI
10.1186/s12957-025-03844-9
PII: 10.1186/s12957-025-03844-9
Knihovny.cz E-zdroje
- Klíčová slova
- Double-constrained implant, Extra-articular resection, Malawer type V resection, Osteosarcoma, Shoulder reconstruction,
- MeSH
- artroplastika ramenního kloubu * metody MeSH
- lidé MeSH
- mladiství MeSH
- nádory kostí * chirurgie patologie MeSH
- náhrada ramenního kloubu * MeSH
- osteosarkom * chirurgie patologie MeSH
- ověření koncepční studie MeSH
- prognóza MeSH
- protézy - design * MeSH
- ramenní kloub * chirurgie patologie MeSH
- výsledek terapie MeSH
- zákroky plastické chirurgie * metody MeSH
- Check Tag
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- kazuistiky MeSH
Reconstruction of the anatomic defect following extra-articular shoulder resection is a challenging problem, particularly in cases when function of the deltoid muscle and rotator cuff are compromised. Standard reconstruction techniques often result in either instability or rigidity. Constrained implants have been used to overcome these problems; however, they have been associated with a high rate of aseptic loosening. Recently, a novel double-constrained implant has been introduced, yielding promising functional results. Nonetheless, this implant exhibited a cosmetic defect related to protrusion of the humeral component that becomes apparent with time as result of surrounding muscle atrophy. An updated improved design of the implant has been developed to counteract this.We report the case of a 15-year-old patient who underwent an extra-articular (Malawer type V) shoulder resection due to osteosarcoma and received an innovated custom-made double-constrained implant. Moreover, we describe a new modification of the Malawer utilitarian approach to the shoulder girdle that enhances tumor visibility and allows safer dissection. The patient recovered well with satisfactory outcomes at 18 months follow-up, highlighting the potential benefits of this implant design and surgical approach.
Department of Orthopaedic Surgery University of Missouri 1100 Virgina Dr Columbia MO 65201 USA
Faculty of Mechanical Engineering Czech Technical University Prague Czech Republic
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