DOI: 10.1093/bjs/znad258.678 ISSN:

892 Dual Platform 4th Generation Shoulder Replacement System-Medium Term Results

S Komperla, W Giles, E Flatt, A Eyre-Brook, V Jones, M Papanna, T Eves, D Thyagarajan
  • Surgery



To report medium term outcomes following 4th generation VAIOS® shoulder replacement.


We retrospectively analysed prospectively collected data following VAIOS® shoulder arthroplasty performed by the senior author between 2014-2020. This included anatomical (TSR), reverse(rTSR), revision and trauma shoulder replacements. The primary outcome was implant survival (Kaplan-Meier analysis). Secondary outcomes were Oxford Shoulder Scores (OSS), radiological outcomes and complications.


152 patients met our inclusion criteria with 114 rTSR and 38 anatomical TSR

Reverse TSR

Reverse TSR- 55 primary, 31 revisions, 28 for trauma.

Primary rTSR- 0 revisions, average 3.35-year follow-up.

Revision rTSR-1 revision (4.17%), average 3.52-year follow-up.

Trauma rTSR- 1 revision (3.57%), average 4.56-year follow-up

OSS: Average OSS improved from 15.39 to 33.8 (Primary rTSR) and from 15.11 to 29.1 (Revision rTSR). Trauma rTSR-Average post-operative OSS was 31.4.

Anatomical TSR

38 patients underwent primary anatomical TSR. In 16/38 patients, glenoid bone loss was addressed by bone grafting before implantation of the metal back glenoid component. Mean age at time of surgery was 68.3 years (53 – 81 years). Mean follow-up was 34 months (12 – 62 months). The average Oxford shoulder score improved from 14 (7-30) to 30 (9-48).

There were 3 revisions (7.8%); two following subscapularis failure requiring revision conversion to reverse shoulder replacement and one for glenoid graft failure.


The medium-term results of the VAIOS® system suggest much lower revision rates across multiple configurations of the system than previously reported, as well as a low incidence of scapular notching. This system allows conversion to rTSR during primary and revision surgery.

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