Highlights of the 2024 American Joint Replacement Registry Annual Report
Cited in 2 Likelier entries (2 risks, 0 decisions).
Used in 2 entries
For each citing entry, the verbatim excerpt and Likelier's calculation notes (how the source's number was converted to the lifetime-probability framing) are shown below. Click through to read the full claim ledger.
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- Statistic
AJRR has captured 4.3 million hip and knee arthroplasty procedures from 2012 to 2023 across 1,447 member sites; primary THA comprises 32.4% of captured procedures.
“"The 2024 AJRR Annual Report contains 3,715,320 validated primary and revision THA and TKA procedures performed during years 2012 to 2023, with primary THA comprising 32.4% of procedures captured. The AJRR remains the largest orthopaedic and joint arthroplasty registry in the world by annual procedure volume."”
Calculation notes
32.4% of 3,715,320 validated procedures over 12 years = ~1.2 million THAs captured in the registry over that period. Used to confirm ongoing high annual volume and the increasing utilization trend. Not used as the primary probability estimate.
Independence note: AAOS AJRR is a voluntary registry of participating US surgical centers using administrative and clinical data. Methodologically independent of the population-based Olmsted County cohort and UK general practice database.
Source date: 2024-11-12 · Accessed: 2026-05-14
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- Statistic
AJRR captured over 3.7 million validated primary and revision THA and TKA procedures from 2012 to 2023; TKA is the majority procedure type at participating centers.
“"The 2024 AJRR Annual Report contains 3,715,320 validated primary and revision THA and TKA procedures performed during years 2012 to 2023, with primary THA comprising 32.4% of procedures captured. The AJRR remains the largest orthopaedic and joint arthroplasty registry in the world by annual procedure volume."”
Calculation notes
If primary THA is 32.4% of procedures, then TKA + revisions account for 67.6%. Primary TKA is a substantially larger share of total procedures than THA, consistent with the higher population-level TKA prevalence (10.38% vs 5.26% at 80). Used to confirm high annual volumes and the TKA > THA utilization ratio.
Independence note: AAOS AJRR draws on administrative and clinical data from participating surgical centers, methodologically independent of the population-based Rochester Epidemiology Project.
Source date: 2024-11-12 · Accessed: 2026-05-14
