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. 2021 Dec 11;14(1):30721.
doi: 10.52965/001c.30721. eCollection 2022.

Adaptive proximal scaphoid implant (APSI): a systematic review of the literature

Giuseppe Mosillo  1 , Morena Anna Basso  1 , Giovanni Balato  1 , Alessio Bernasconi  1 , Antonio Coviello  2 , Federico Tamborini  3 , Andrea Poggetti  4 , Francesco Smeraglia  1
Affiliations

Adaptive proximal scaphoid implant (APSI): a systematic review of the literature

Giuseppe Mosillo et al. Orthop Rev (Pavia). .

Abstract

Scapholunate advanced collapse collapse (SLAC) is a challenging topic for hand surgeons. The adaptative proximal scaphoid implant (APSI) (Bioprofile-Tornier) is a pyrocarbon ovoid shaped interpositional implant, that allows adaptive mobility during motion. The aim of this systematic review is to analyze the clinical and radiological outcomes of APSI implants and possible complications. We performed a literature search combining the following key-words: "APSI", "Scaphoid's proximal pole", "implant", "scaphoid avascular necrosis", "SLAC", "SNAC", "pyrocarbon", "prosthesis", and "spacer" with no limitations for year of publication. We selected seven studies considered relevant to our systematic review. All studies described an improvement in the grip strength and the flexion extension arch compared to pre-operative values. The percentage of patients who reported progression of osteoarthritis (OA) with APSI was 17.3%, and implant's mobilization has a rate 5.1% (8/156). In conclusion the APSI implant is a reliable alternative for the treatment of SNAC wrist and SLAC wrist.

Keywords: SNAC; implant; pyrocarbon; scaphoid; wrist.

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Figures

Figure 1.
Figure 1.. Flow-chart of the literature search
See this image and copyright information in PMC

References

    1. 1. Watson HK, Ballet FL. The SLAC wrist: Scapholunate advanced collapse pattern of degenerative arthritis. J Hand Surg Am. 1984;9(3):358-365. doi:10.1016/s0363-5023(84)80223-3 - PubMed
    1. 2. Laulan J, Marteau E, Bacle G. Wrist osteoarthritis. Orthop Traumatol Surg Res. 2015;101(1):S1-S9. doi:10.1016/j.otsr.2014.06.025 - PubMed
    1. 3. Mulford JS, Ceulemans LJ, Nam D, Axelrod TS. Proximal row carpectomy vs. four-corner fusion for scapholunate (SLAC) or scaphoid nonunion advanced collapse (SNAC) wrists: a systematic review of outcomes. J Hand Surg Eur Vol. 2009;34(2):256-263. doi:10.1177/1753193408100954 - PubMed
    1. 4. Pequignot JR, Lussiez B, Allieu Y. Implant adaptatif du scaphoïde proximal. Chir Main. 2000;19(5):276-285. doi:10.1016/s1297-3203(00)73492-5 - PubMed
    1. 5. Mariconda M, Russo S, Smeraglia F, Busco G. Partial trapeziectomy and pyrocarbon interpositional arthroplasty for trapeziometacarpal joint osteoarthritis: Results after minimum 2 years of follow-up. J Hand Surg Eur Vol. 2014;39(6):604-610. doi:10.1177/1753193413519384 - PubMed