Ankle (3) Elbow (6) Finger (3) Hip (130) Knee (101) Not applicable (2) Shoulder (23) Wrist (3)

Ankle arthroplasty: Total (3) Ankle arthroplasy (3) Elbow arthroplasty (6) Elbow arthroplasty: Radial head (1) Elbow arthroplasty: Radiocapitellar (1) Elbow arthroplasty: Total (2) Finger arthroplasty (3) Hip arthroplasty (127) Hip arthroplasty: Hemi (10) Hip arthroplasty: Resurfacing (2) Hip arthroplasty: Revision (3) Hip arthroplasty: Total (82) Knee arthropalsty (1) Knee arthroplasty (98) Knee arthroplasty: Patellofemoral (2) Knee arthroplasty: Revision (2) Knee arthroplasty: Total (54) Knee arthroplasty: Unicondylar (21) Not applicable (2) Shoulder arthroplasty (22) Shoulder arthroplasty: Hemi (2) Shoulder arthroplasty: Total (2) Shoulder arthroplasty: Total: Anatomical (8) Shoulder arthroplasty: Total: Reversed (7) Total knee arthroplasty (1) Wrist arthroplasty (2) Wrist Arthroplasty (1)

Age (14) Age: <18 years (1) Age: elderly (3) Age: young (5) Antibiotic loaded bone cement (3) Antibiotic: prophylaxis (1) Antibiotics (7) Antibiotics: Dual loaded bone cement (2) Antibiotics: policy (1) Antibiotics: Prophylaxis (1) Anticoagulant use (1) Arthrofibrosis (1) Arthroplasty register (1) Articulation (4) Articulation: ceramic-on-ceramic (1) Articulation: metal-on-metal (3) ASA classification (1) Bearing type (2) Benefits (1) Benzodiazepine use (3) Best worst scaling experiment (1) Bilaterality (1) Bioactive coating (1) Bipolar head (1) BMI (3) Bone-implant surface (1) Competing risk model (1) Completeness (2) Constrained acetabular liners (1) Conversion to TKA (2) Costs (1) COVID-19 (2) Cryo- and compression therapy (2) CUSUMs (1) DAIR (1) Database comparison (1) Database linkage (9) Delphi study (1) Depression (1) Diagnosis (12) Diagnosis: fracture (4) Diagnosis: late posttraumatic (1) Diagnosis: osteoarthritis (1) Diagnosis: Perthes and dysplasia (1) Disability pension (1) Dual mobility cups (8) Femoral head size (3) Femoral stem design (6) Femoral stem design: short-stemmed (3) Femoral stem design: size (1) Femoral stem length (1) Femoral stem size (1) Femoral stem size: 13 (1) Fixation (10) Friday the 13th (1) Glenohumeral radial mismatch (1) Glenoid component type (1) Hospital variation (2) Hospital volume (5) Humeral stem design (1) Humeral stem design: modularity (1) Implant choice (3) Implant classification (1) Intra operative fluoroscopy (1) Learning curve (2) Machine learning (2) Manufacturer (3) Manufacturer: availability (1) Manufacturer: mixed (1) Medication use (1) Medication use: antidepressant (1) Megaprosthesis reconstruction (1) Mental, social and pathophysiological factors (1) Methodology (29) Microbiology (1) Microplasty instrumentation (1) Migration of cups (1) Minimal Important Difference (2) Multiple joint arthroplasties (1) Navigation (1) Nested RCT (4) New prosthesis design (1) New technology (1) NOV advise (1) NOV classification (1) onlay vs inlay shoulder system (1) Opioid use (8) Osteonecrosis (1) Osteosynthesis (1) Osteotomy (3) Outcome information (1) Outlier procedure (1) Oxford Hip Score (1) Oxford Knee Score (1) Pain (1) Patellar resurfacing (3) Patellofemoral knee arthroplasty (1) Patient characteristics (24) Patient chararteristics (1) Patient specific instrumentation (PSI) (1) Patient Specific Intrumentation (1) Periprothetic fracture (2) Polyethylene (1) Polyethylene: Highly crosslinked (1) Preoperative PROM-scores (2) Previous surgery (1) Procedure characteristics (21) Procedure charateristics (1) PROMIS (2) PROMIS: CAT (2) PROMs (3) PROMs: preoperative scores (1) Prosthesis characteristics (2) Quality of care (4) Reason for revision (1) Registry description (1) Regression discontinuity methods (1) Revision (3) Revision components (1) Robot Assisted Surgery (3) RSA tested (2) Shoulder arthroplasty (1) Smoking (1) Socioeconomic status (5) Stability (2) Stability: posterior stabilized vs. cruciate retaining (2) Surgical approach (18) Surgical approach: anterior approach (1) Surgical approach: direct anterior approach (1) Surgical approach: direct superior approach (2) Surgical case volume (1) Surgical instrument sets (1) Target trial emulation (1) Technology Assisted Surgery (1) Trends (3) Type of hospital (1) Type of prosthesis (5) Unicondylar side (1) Validation (2)

Carbon footprint (1) Complications (1) Conversion to total hip arthroplasty (1) Data quality (1) Definition of poor response (3) Descriptive (22) Feasibility (1) Immortal time bias (1) Implant choice (2) Implant library (1) Infection (1) International comparison (17) Mortality (12) Overview (2) Prediction model (3) Prevalence (1) PROMs (34) PROMs: minimal important difference (1) PROMs: response (2) Quality of care (3) Quality of life (EQ-5D) (3) Re-revision (20) Re-revision for dislocation (1) Reasons for revision (1) Recovery trajectories (1) Revision (119) Revision for aseptic loosening (5) Revision for dislocation (3) Revision for infection (6) Revision for liner wear (1) Revision for malalignment (1) Revision: Cup (4) Revision: Glenoid (1) Revision: Stem (1) Revision: Tibia (1) Travel distance (1) Trend (4) Validation (4)

Bloemheuvel, E (4) Bohm, ER (1) Bolder, S (1) Bongers, J (1) Boonen, B (1) Bos, PK (1) Boymans, T (1) Braaksma, C (2) Brouwer, RW (4) Buijze, GA (1) Callary, S (1) de Boer, F.A. (1) de Steiger, RN (1) de Witte, PB (5) Denissen, GAW (3) Doornberg, JN (2) Eygendaal, D (4) Farey, J (1) Fiocco, M (2) Furnes, O (3) Gademan, MGJ (13) Goosen, J (1) Gosens, T (1) Groenwold, R (1) Hannink, G (2) Haverkamp, D (1) Heijnens, L (1) Hermus, J (1) Hosman, A (1) Huitema, G (1) Huizinga, M (1) Huizinga, MR (1) Inglesrud, L (1) Janssen, R (1) Jelsma, J (1) Kerkhoffs, GMMJ (1) Keuter, X (2) Koëter, S (2) Kooistra, BW (1) Lambers Heerspink, O (2) Lewis, P (1) Lingsma, HF (2) Lübbeke, A (1) Marang-van de Mheen, PJ (1) Moerman, S (1) Morrenhof, JW (1) Most, J (4) Nagels, J (1) Nelissen, RGHH (17) Nolte, P (6) Pijls, BG (2) Poolman, RW (9) Prkic, A (2) Quispel, C (2) Reijman, M (1) Rietbergen, L (1) Rolfson, O (2) Rutger, M (1) Schipper, I (1) Schotanus, M (2) Schreurs, W (13) Smulders, K (4) Spekenbrink, A (2) Swierstra, BA (2) ten Broeke, R (1) Vakalopoulos, K.A. (1) van den Bekerom, MPJ (5) van der Linde, JA (1) van der Pas, S (2) van der Wal, B (1) van der Wal, RJP (1) van der Weegen, W (1) van Egmond, J (1) van Egmond, PW (1) van Geenen, R (6) van Jonbergen, HPW (1) van Laarhoven, SN (1) van Noort, A (1) van Oldenrijk, J (1) van Raaij, TM (1) van Rensch, PJH (1) van Schie, P (1) van Steenbergen, LN (3) van Susante, J (2) Veen, EJ (2) Vehmeijer, SBW (3) Veltman, ES (1) Verhaar, JAN (2) Wolterbeek, N (2) Zijlstra, WP (22) Zuiderbaan, HA (5)

Approved (8) Ongoing (61) Published (142)