ArticleThe Journal of bone and joint surgery. American volume2026
Assessment of Custom-Made Acetabular Implants for Complex Revision Total Hip Arthroplasty: A Concise Follow-up, at a Minimum of 5 Years.
Article in The Journal of bone and joint surgery. American volume, 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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3 authors.
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Abstract
In this study, we evaluated the long-term outcomes of 3D-printed, custom-made acetabular implants (CMAIs), expanding on earlier, mid-term findings. Radiographic assessment focused on implant migration and bone ingrowth, and clinical outcomes included survivorship, complications, the mobility score, and the Oxford Hip Score (OHS). The median follow-up was 7 years (range, 5 to 9 years). Thirty patients of diverse ethnic backgrounds (21 female; median age of 70 years) were included. Implant migration was limited to the first postoperative year (≤5 mm), with negligible displacement thereafter. Bone ingrowth occurred in 27 (90%) of the patients. The 9-year implant survival rate was 96.3%, with 1 re-revision for infection. The median OHS improved from 8 preoperatively (interquartile range [IQR], 4 to 13) to 32 (IQR, 21 to 37) at the previous, mid-term follow-up (p < 0.0001), and then remained essentially the same at the most recent follow-up. Mobility scores improved by a mean of 1.4 points (p < 0.0001). Two dislocations (in 1 patient), 1 transient sciatic nerve palsy, and recurrent infection in 2 patients were recorded. CMAIs provide durable fixation. Constructs stabilize over time, reflecting osseointegration. LEVEL OF EVIDENCE: Therapeutic Level IV . See Instructions for Authors for a complete description of levels of evidence.
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