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Nonprofit · Davos · Switzerland

AO Foundation

In research, AO Foundation stands highest in Medicine (#5,620 of 10,443 worldwide), Health Sciences (#6,924 of 11,982 worldwide) and Surgery (#1,178 of 1,816 worldwide), 2022–2025. Relative to its size it is most specialised in Surgery and Epidemiology — Surgery is 11.5× its share of world research.

aofoundation.org/Structure/Pages/default.aspxROR OpenAlex
World rank, 2022–2025
#12,760
of 28,054 · #11,625 all time
Rank in Switzerland
#78
of 220
Research works
1.3k
▲ 3% vs 2013–17
Citations
49k
37.6 per fractional work
Top-10% rate
16.3%
record average 16.5%
Open access
39%
world 28%

What is AO Foundation known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #5,620 of 10,443 14.6%154 #3859
Health SciencesDomain #6,924 of 11,982 14.4%165 #4413
SurgerySubfield #1,178 of 1,816 15.7%65 #934

Each strip is that field’s whole ranked pool, with the notch where AO Foundation sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Medicine#3,859 #5,620
  2. Health Sciences#4,413 #6,924
  3. Surgery#934 #1,178
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does AO Foundation specialise in?

Where its research is concentrated relative to its size: Surgery takes 11.5× the share of its output that it takes of world research.

  1. SurgerySubfield · 65.5 works12×
  2. EpidemiologySubfield · 23.5 works6.8×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.12× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.33× its world share, 17 worksBiochemistry, Geneti…Immunology and Microbiology: 0.95× its world share, 2 worksImmunology and Micro…Neuroscience: 0.40× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.18× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.23× its world share, 0 worksChemical EngineeringChemistry: 0.44× its world share, 2 worksChemistryComputer Science: 0.11× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.02× its world share, 0 worksEarth and Planetary …Engineering: 0.61× its world share, 22 worksEngineeringEnvironmental Science: 0.39× its world share, 5 worksEnvironmental ScienceMaterials Science: 0.79× its world share, 7 worksMaterials ScienceMathematics: 0.11× its world share, 0 worksMathematicsPhysics and Astronomy: 0.13× its world share, 1 worksPhysics and AstronomyDentistry: 2.75× its world share, 3 worksDentistryHealth Professions: 0.88× its world share, 6 worksHealth ProfessionsMedicine: 3.29× its world share, 154 worksMedicineNursing: 0.42× its world share, 0 worksNursingVeterinary: 6.62× its world share, 2 worksVeterinaryArts and Humanities: 0.37× its world share, 3 worksArts and HumanitiesBusiness, Management and Accounting: 0.14× its world share, 1 worksBusiness, Management…Decision Sciences: 0.39× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.19× its world share, 1 worksEconomics, Econometr…Psychology: 0.09× its world share, 1 worksPsychologySocial Sciences: 0.32× its world share, 10 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Veterinary, 6.6×. Every wedge is a field page.

Who are the top researchers at AO Foundation?

Ranked on the composite score, S. M. Perren, Andreas Böger and B. A. Rahn lead among researchers whose main affiliation is AO Foundation.

  1. 1 S. M. Perren Switzerland · #109,818 worldwide 142 citations · 29 works
  2. 2 Andreas Böger Switzerland · #212,933 worldwide 146 citations · 18 works
  3. 3 B. A. Rahn Switzerland · #219,860 worldwide 81 citations · 23 works
  4. 4 Mauro Alini Switzerland · #277,585 worldwide 178 citations · 49 works
  5. 5 T. Fintan Moriarty Switzerland · #338,667 worldwide 138 citations · 16 works
  6. 6 Erich Schneider Switzerland · #345,720 worldwide 97 citations · 49 works
  7. 7 R. Geoff Richards Switzerland · #434,685 worldwide 122 citations · 60 works
  8. 8 Zhen Li Switzerland · #539,585 worldwide 61 citations · 32 works
  9. 9 Sylwester Gogolewski Switzerland · #546,147 worldwide 96 citations · 16 works
  10. 10 Sibylle Grad Switzerland · #576,762 worldwide 104 citations · 45 works
All ranked researchers at AO Foundation

Which keywords describe research at AO Foundation?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Biomechanics, Internal Fixation, Complications, Infection Prevention, Bone Healing, Fracture Epidemiology, Regeneration and Tissue Engineering.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Biomechanics27▲ 37×8 topics
  2. Internal Fixation21▲ 126×2 topics
  3. Epidemiology21▲ 2.1×38 topics
  4. Inflammation20▲ 4.0×31 topics
  5. Complications20▲ 16×12 topics
  6. Infection Prevention20▲ 94×3 topics
  7. Bone Healing18▲ 168×1 topic
  8. Fracture Epidemiology18▲ 168×1 topic
  9. Regeneration15▲ 33×5 topics
  10. Tissue Engineering15▲ 10×9 topics
  11. Rehabilitation15▲ 16×8 topics
  12. Surgical Management14▲ 14×9 topics
  13. Osteoarthritis13▲ 43×5 topics
  14. Mortality13▲ 9.4×7 topics
  15. Revision Surgery13▲ 43×2 topics
  16. Total Hip Replacement13▲ 43×2 topics
  17. Regenerative Medicine12▲ 20×6 topics
  18. Mesenchymal Stem Cells12▲ 48×2 topics
  19. Matrix Metalloproteinases11▲ 32×3 topics
  20. Biomaterials11▲ 19×6 topics
  21. Cartilage11▲ 92×1 topic
  22. Chondrocyte11▲ 92×1 topic
  23. Hip Arthroplasty10▲ 68×1 topic
  24. Surgical Treatment10▲ 21×4 topics
  25. Wear Particles10▲ 68×1 topic
  26. Low Back Pain10▲ 23×3 topics
  27. Degenerative Disc Disease9▲ 39×2 topics
  28. Diagnostic Imaging8▲ 31×2 topics
  29. Surgery8▲ 9.5×5 topics
  30. Elderly Patients8▲ 20×4 topics
  31. Spinal Fusion8▲ 34×2 topics
  32. Functional Recovery8▲ 22×2 topics
  33. Antibiotic Prophylaxis8▲ 40×2 topics
  34. Periprosthetic Joint Infection8▲ 81×1 topic
  35. Prosthetic Joint Infections8▲ 81×1 topic
  36. Hip Fracture8▲ 83×1 topic
  37. Orthogeriatric Care8▲ 83×1 topic
  38. Intervertebral Disc7▲ 42×1 topic
  39. Lumbar Disc Degeneration7▲ 42×1 topic
  40. Angiogenesis7▲ 8.3×9 topics

Which research topics does AO Foundation publish most on?

By volume in 2022–2025: Bone fractures and treatments, Osteoarthritis Treatment and Mechanisms, Orthopaedic implants and arthroplasty and Orthopedic Infections and Treatments.

Bone fractures and treat…18Bone fractures and treatments: 18 fractional worksOsteoarthritis Treatment and Mechanisms: 11 fractional worksOrthopaedic implants and…10Orthopaedic implants and arthroplasty: 10 fractional worksOrthopedic Infections an…8Orthopedic Infections and Treatments: 8 fractional worksHip and Femur Fractures: 8 fractional worksSpine and Intervertebral Disc Pathology: 7 fractional worksOrthopedic Surgery and R…6Orthopedic Surgery and Rehabilitation: 6 fractional worksShoulder Injury and Treatment: 5 fractional worksShoulder and Clavicle Injuries: 5 fractional worksBone Tissue Engineering Materials: 4 fractional works
EpidemiologyRheumatologySurgeryPathology and Forensic Medicine1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Bone fractures and treatments Epidemiology 18 works
  2. 2 Osteoarthritis Treatment and Mechanisms Rheumatology 11 works
  3. 3 Orthopaedic implants and arthroplasty Surgery 10 works
  4. 4 Orthopedic Infections and Treatments Surgery 8 works
  5. 5 Hip and Femur Fractures Surgery 8 works
  6. 6 Spine and Intervertebral Disc Pathology Pathology and Forensic Medicine 7 works
  7. 7 Orthopedic Surgery and Rehabilitation Surgery 6 works
  8. 8 Shoulder Injury and Treatment Surgery 5 works
  9. 9 Shoulder and Clavicle Injuries Epidemiology 5 works
  10. 10 Bone Tissue Engineering Materials Biomedical Engineering 4 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available38.6%not open61.4%

World: 28% of research is openly available.

with international co-authors53.9%domestic only46.1%

World: 19% is written across borders.

How has AO Foundation's research output changed?

Output in 2018–2022 was 3% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Davos

All research institutions in Davos

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.