The Global Orthopaedic Atlas compiles data from multiple authoritative sources to provide an accurate snapshot of global orthopaedic surgical capacity. This page documents our data sources, collection methodology, and quality assurance processes.
Primary Data Sources
WHO Global Health Workforce Statistics
Coverage: 194 countries and territories
Data Type: Surgeon workforce density, health infrastructure metrics
Update Frequency: Annual (most recent: 2024)
Reliability: High - based on national health ministry reporting
National Medical Councils & Registries
Countries Covered: 35+ jurisdictions with publicly accessible registries
Data Type: Specialist registration data, subspecialty distributions
Examples:
- UK: General Medical Council (GMC) Specialist Register
- USA: American Academy of Orthopaedic Surgeons (AAOS) membership data
- Australia: Australian Orthopaedic Association (AOA) registry
- India: National Medical Commission specialist database
- South Africa: Health Professions Council of South Africa (HPCSA)
Reliability: Very High - official regulatory data
Published Academic Literature
Search Strategy: PubMed, Embase, WHO Global Index Medicus (2020-2026)
Keywords: "orthopaedic surgeon density", "surgical workforce capacity", "global orthopaedic training"
Studies Included: 47 peer-reviewed publications
Key References:
- Meara JG, et al. "Global Surgery 2030: evidence and solutions for achieving health, welfare, and economic development." Lancet. 2015;386(9993):569-624.
- Alkire BC, et al. "Global access to surgical care: a modelling study." Lancet Glob Health. 2015;3(6):e316-23.
- Holmer H, et al. "Global distribution of surgeons, anaesthesiologists, and obstetricians." Lancet Glob Health. 2015;3 Suppl 2:S9-11.
Professional Society Data
Organizations Surveyed:
- International Federation of Orthopaedic Manipulative Physical Therapists (IFOMPT)
- Société Internationale de Chirurgie Orthopédique et de Traumatologie (SICOT)
- International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS)
- AO Foundation global membership database
- College of Surgeons of East, Central and Southern Africa (COSECSA)
Data Type: Training center directories, fellowship program listings, membership demographics
OrthoGlobe Collaborative Network
Contributors: 200+ orthopaedic surgeons across 65 countries
Data Type: Ground-truth verification, local training program details, resource availability assessments
Method: Structured surveys and expert consultation (2024-2026)
Purpose: Validation of official statistics and gap-filling for underreported regions
Data Collection & Processing
Surgeon Density Calculation
Surgeon density is calculated as:
Density = (Number of Practicing Orthopaedic Surgeons ÷ Total Population) × 100,000
- Numerator: Actively practicing orthopaedic surgeons (excludes retirees, non-clinical roles)
- Denominator: Total national population (World Bank 2024 estimates)
- Subspecialty Inclusion: All orthopaedic subspecialties included (trauma, sports, hand, spine, paediatric, etc.)
Training Program Verification
Training programs included in the atlas meet the following criteria:
- Accredited by national medical authority or recognized international body
- Minimum 3-year structured training curriculum
- Active as of January 2026
- Accepts new trainees annually
Data Quality Assurance
| Quality Criterion | Method | Threshold |
| Source Verification | Cross-reference ≥2 independent sources | 95% agreement required |
| Temporal Consistency | Compare year-over-year trends | Flag >20% annual change for review |
| Expert Validation | OrthoGlobe network ground-truth check | Local surgeon confirmation for each country |
| Outlier Detection | Statistical analysis (Z-score >3) | Manual investigation of outliers |
Data Limitations
Important Note: Users should be aware of the following limitations when interpreting atlas data:
- Reporting Gaps: Some countries lack centralized surgeon registries; estimates may rely on professional society membership (typically underestimates true numbers)
- Definition Variability: "Orthopaedic surgeon" definitions vary across countries (some include trauma surgeons, others separate them)
- Private Sector: Private practice surgeons may be underreported in countries with weak regulatory oversight
- Temporal Lag: Most recent official data lags 1-2 years; rapid changes (e.g., conflict zones, mass migration) may not be captured
- Training Quality: Program counts reflect quantity, not quality; accreditation standards vary globally
- Subspecialty Distribution: Current dataset does not disaggregate by subspecialty (e.g., shoulder vs. spine specialists)
Update Schedule
The Global Orthopaedic Atlas is updated on a rolling basis:
- Quarterly reviews: New WHO data, major national registry updates
- Annual refresh: Comprehensive re-validation of all countries (Target: January each year)
- Ad-hoc updates: Significant events (new training programs, policy changes) incorporated as identified
Data Access & Reuse
The Global Orthopaedic Atlas data is made available for academic, educational, and advocacy purposes. Researchers wishing to access the underlying dataset for analysis should contact mo.imam@nhs.net with details of their proposed use.
Citation:
Imam MA. Global Orthopaedic Atlas: An Interactive Map of Surgical Capacity and Training Worldwide. OrthoGlobe Collaborative. 2026. Available at: https://orthoglobe.org/atlas