OOIR: Observatory of International Research

Papers

(The TQCC of Acta Orthopaedica is 6. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-11-01 to 2024-11-01.)

Article	Citations
Presenting artificial intelligence, deep learning, and machine learning studies to clinicians and healthcare stakeholders: an introductory reference with a guideline and a Clinical AI Research (CAIR)	58
Wide range of applications for machine-learning prediction models in orthopedic surgical outcome: a systematic review	48
Availability and reporting quality of external validations of machine-learning prediction models with orthopedic surgical outcomes: a systematic review	38
Pain, osteolysis, and periosteal reaction are associated with the STRYDE limb lengthening nail: a nationwide cross-sectional study	29
Dislocation of hemiarthroplasty after hip fracture is common and the risk is increased with posterior approach: result from a national cohort of 25,678 individuals in the Swedish Hip Arthroplasty Regi	28
Severely injured patients do not disappear in a pandemic: Incidence and characteristics of severe injuries during COVID-19 lockdown in Finland	24
The learning curve of the direct anterior approach is 100 cases: an analysis based on 15,875 total hip arthroplasties in the Dutch Arthroplasty Register	22
Epidemiology and mortality of pelvic and femur fractures—a nationwide register study of 417,840 fractures in Sweden across 16 years: diverging trends for potentially lethal fractures	22
The rate of 2nd revision for shoulder arthroplasty as analyzed by the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR)	21
The STRYDE limb lengthening nail is susceptible to mechanically assisted crevice corrosion: an analysis of 23 retrieved implants	20
Impact of socioeconomic status on the 90- and 365-day rate of revision and mortality after primary total hip arthroplasty: a cohort study based on 103,901 patients with osteoarthritis from national da	20
Measurement properties of UCLA Activity Scale for hip and knee arthroplasty patients and translation and cultural adaptation into Danish	20
The European Bone and Joint Infection Society definition of periprosthetic joint infection is meaningful in clinical practice: a multicentric validation study with comparison with previous definitions	20
Uncemented or cemented stems in first-time revision total hip replacement? An observational study of 867 patients including assessment of femoral bone defect size	18
Variation and trends in reasons for knee replacement revision: a multi-registry study of revision burden	17
Impact of malnutrition and vitamin deficiency in geriatric patients undergoing orthopedic surgery	16
Clinical and radiological outcomes of robotic-assisted versus conventional total knee arthroplasty: a systematic review and meta-analysis of randomized controlled trials	15
Optimized medial unicompartmental knee arthroplasty outcome: learning from 20 years of propensity score matched registry data	15
Precision of CT-based micromotion analysis is comparable to radiostereometry for early migration measurements in cemented acetabular cups	15
Population-based 10-year cumulative revision risks after hip and knee arthroplasty for osteoarthritis to inform patients in clinical practice: a competing risk analysis from the Dutch Arthroplasty Reg	15
Arthroscopic partial meniscectomy: did it ever work?	14
Risk factors for prosthetic joint infections following total hip arthroplasty based on 33,337 hips in the Finnish Arthroplasty Register from 2014 to 2018	14
10-year evolution of day-case hip and knee arthroplasty: a Danish nationwide register study of 166,833 procedures from 2010 to 2020	14
Reduced wear in vitamin E-infused highly cross-linked polyethylene cups: 5-year results of a randomized controlled trial	14
Bacteriophage therapy cures a recurrentEnterococcus faecalisinfected total hip arthroplasty? A case report	13

Direct superior approach versus posterolateral approach in total hip arthroplasty: a randomized controlled trial on early outcomes on gait, risk of fall, clinical and self-reported measurements	13
Nonoperative management of hip fractures in very frail elderly patients may lead to a predictable short survival as part of advance care planning	13
Reasons for revision are associated with rerevised total knee arthroplasties: an analysis of 8,978 index revisions in the Dutch Arthroplasty Register	13
30-day and 1-year mortality after skeletal fractures: a register study of 295,713 fractures at different locations	13
Bariatric surgery prior to total knee arthroplasty is not associated with lower risk of revision: a register-based study of 441 patients	13
Impact of the COVID-19 pandemic on emergency and elective hip surgeries in Norway	13
Pexidartinib improves physical functioning and stiffness in patients with tenosynovial giant cell tumor: results from the ENLIVEN randomized clinical trial	12
Similar early mortality risk after cemented compared with cementless total hip arthroplasty for primary osteoarthritis: data from 188,606 surgeries in the Nordic Arthroplasty Register Association data	12
The rise of registry-based research: a bibliometric analysis	12
Increasing but levelling out risk of revision due to infection after total hip arthroplasty: a study on 108,854 primary THAs in the Norwegian Arthroplasty Register from 2005 to 2019	12
Machine learning algorithms trained with pre-hospital acquired history-taking data can accurately differentiate diagnoses in patients with hip complaints	12
Isometric hip strength impairments in patients with hip dysplasia are improved but not normalized 1 year after periacetabular osteotomy: a cohort study of 82 patients	12
Total hip arthroplasties in the Dutch Arthroplasty Register (LROI) and the Nordic Arthroplasty Register Association (NARA): comparison of patient and procedure characteristics in 475,685 cases	12
Does the Covid-19 pandemic affect ankle fracture incidence? Moderate decrease in Sweden	12
Guidelines for a structured manuscript: Statistical methods and reporting in biomedical research journals	11
Risk of total knee replacement after proximal tibia fracture: a register-based study of 7,841 patients	11
Incidence and risk factors of intraoperative periprosthetic femoral fractures during primary total hip arthroplasty: 218,423 cases reported to the Norwegian Arthroplasty Register between 1987 and 2020	11
Implant survival of 2,723 vitamin E-infused highly crosslinked polyethylene liners in total hip arthroplasty: data from the Finnish Arthroplasty Register	11
Mortality and revision risk after femoral neck fracture: comparison of internal fixation for undisplaced fracture with arthroplasty for displaced fracture: a population-based study from Danish Nationa	10
Postoperative delirium is a risk factor for complications and poor outcome after total hip and knee arthroplasty	10
Effects of tourniquet inflation on peri- and postoperative cefuroxime concentrations in bone and tissue	10
Good results at 2-year follow-up of a custom-made triflange acetabular component for large acetabular defects and pelvic discontinuity: a prospective case series of 50 hips	10
Socioeconomic status and use of analgesic drugs before and after primary hip arthroplasty: a population-based cohort study of 103,209 patients during 1996–2018	10
Association between fixation type and revision risk in total knee arthroplasty patients aged 65 years and older: a cohort study of 265,877 patients from the Nordic Arthroplasty Register Association 20	10
When the placebo effect is not an effect	10
Reoperations after decompression with or without fusion for L4–5 spinal stenosis with or without degenerative spondylolisthesis: a study of 6,532 patients in Swespine, the national Swedish spine regis	10
Impact of patient and prosthesis characteristics on common reasons for total knee replacement revision: a registry study of 36,626 revision cases from Australia, Sweden, and USA	10
Low revision rate of dual mobility cups after arthroplasty for acute hip fractures: report of 11,857 hip fractures in the Dutch Arthroplasty Register (2007–2019)	10
Complications and risk factors of intramedullary bone lengthening nails: a retrospective multicenter cohort study of 314 FITBONE and PRECICE nails	10
Complications common in motorized intramedullary bone transport for non-infected segmental defects: a retrospective review of 15 patients	10
Development of hip displacement in cerebral palsy: a longitudinal register study of 1,045 children	9
Interpretation threshold values for the Oxford Knee Score in patients undergoing unicompartmental knee arthroplasty	9
Computed tomography-based radiostereometric analysis in orthopedic research: practical guidelines	9
Epidemiology and trends in management of acute proximal humeral fractures in adults: an observational study of 137,436 cases from the Danish National Patient Register, 1996–2018	9
A matched comparison of the patient-reported outcome measures of 38,716 total and unicompartmental knee replacements: an analysis of linked data from the National Joint Registry of England, Northern I	9
Machine learning classifiers do not improve prediction of hospitalization > 2 days after fast-track hip and knee arthroplasty compared with a classical statistical risk model	9
Highly cross-linked polyethylene still outperforms conventional polyethylene in THA: 10-year RSA results	9
Large variability in recommendations for return to daily life activities after knee arthroplasty among Dutch hospitals and clinics: a cross-sectional study	9
Study protocol for discharge on day of surgery after hip and knee arthroplasty from the Center for Fast-track Hip and Knee Replacement	9
A roadmap to surgery in osteogenesis imperfecta: results of an international collaboration of patient organizations and interdisciplinary care teams	9
Knee and foot contracture occur earliest in children with cerebral palsy: a longitudinal analysis of 2,693 children	9
International variation in distribution of ASA class in patients undergoing total hip arthroplasty and its influence on mortality: data from an international consortium of arthroplasty registries	9
Influence of day of surgery and prediction of LOS > 2 days after fast-track hip and knee replacement	8
Knee flexion contracture impacts functional mobility in children with cerebral palsy with various degree of involvement: a cross-sectional register study of 2,838 individuals	8
Precision of low-dose CT-based micromotion analysis technique for the assessment of early acetabular cup migration compared with gold standard RSA: a prospective study of 30 patients up to 1 year	8
Increased failure rates after the introduction of the TFNA proximal femoral nail for trochanteric fractures: implant related or learning curve effect?	8
Deep neural networks with promising diagnostic accuracy for the classification of atypical femoral fractures	8
Outcomes after arthroscopic revision surgery for anterior cruciate ligament injuries	8
Comparable mortality but higher revision rate after uncemented compared with cemented total hip arthroplasties in patients 80 years and older: report of 43,053 cases of the Dutch Arthroplasty Register	8
Sex differences in incidence rate, and temporal changes in surgical management and adverse events after hip fracture surgery in Denmark 1997–2017: a register-based study of 153,058 hip fracture patien	8

Influence of body mass index and age on day-of-surgery discharge, prolonged admission, and 90-day readmission after fast-track unicompartmental knee arthroplasty	8
How long does an elbow replacement last? A systematic review and meta-analysis of case-series and national registry reports with more than 10 years of follow-up	8
Dutch Guideline on Knee Arthroscopy Part 1, the meniscus: a multidisciplinary review by the Dutch Orthopaedic Association	8
A matched comparison of cementless unicompartmental and total knee replacement outcomes based on the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man	8
Development of a diagnostic algorithm identifying cases of dislocation after primary total hip arthroplasty—based on 31,762 patients from the Danish Hip Arthroplasty Register	8
Development of acetabular anteversion in children with normal hips and those with developmental dysplasia of the hip: a cross-sectional study using magnetic resonance imaging	7
Can a Bayesian belief network for survival prediction in patients with extremity metastases (PATHFx) be externally validated in an Asian cohort of 356 surgically treated patients?	7
Are conventional microbiological diagnostics sufficiently expedient in the era of rapid diagnostics? Evaluation of conventional microbiological diagnostics of orthopedic implant-associated infections	7
Feasibility, safety, and patient-reported outcomes 90 days after same-day total knee arthroplasty: a matched cohort study	7
Ankle fractures in Finland: 118,929 operatively treated between 1987 and 2019	7
A projection of primary knee replacement in Denmark from 2020 to 2050	7
Large hospital variation in the risk of dislocation after primary total hip arthroplasty for primary osteoarthritis: 31,105 patients in 59 hospitals from the Danish Hip Arthroplasty Register	7
Intraoperatively local infiltration anesthesia in hemiarthroplasty patients reduces the needs of opioids: a randomized, double-blind, placebo-controlled trial with 96 patients in a fast-track hip frac	7
Less improvement following meniscal repair compared with arthroscopic partial meniscectomy: a prospective cohort study of patient-reported outcomes in 150 young adults at 1- and 5-years’ follow-up	7
Salphage: salvage bacteriophage therapy for a recalcitrant Klebsiella pneumoniae prosthetic shoulder infection — a case report	7
Hip dysplasia is not uncommon but frequently overlooked: a cross-sectional study based on radiographic examination of 1,870 adults	7
Short-term functional outcome after fast-track primary total knee arthroplasty: analysis of 623 patients	7
Orthopedic surgical procedures in 3,305 children and young adults with cerebral palsy: a register-based cohort study	7
Opioid prescribing patterns after arthroplasty of the knee and hip: a Dutch nationwide cohort study from 2013 to 2018	7
Intra-articular injection of secretome, derived from umbilical cord mesenchymal stem cell, enhances the regeneration process of cartilage in early-stage osteo-arthritis: an animal study	7
Efficacy of epinephrine in local infiltration analgesia on pain relief and opioid consumption following total knee arthroplasty: a randomized controlled trial	6
The PROMISE study protocol: a multicenter prospective study of process optimization with interdisciplinary and cross-sectoral care for German patients receiving hip and knee endoprostheses	6
Lower mortality in distal femoral fractures in the presence of a knee arthroplasty: an observational study on 2,725 fractures from the Swedish Fracture Register	6
Poor adherence to guidelines in treatment of fragile and cognitively impaired patients with hip fracture: a descriptive study of 2,804 patients	6
Reduction in hospital length of stay and increased utilization of telemedicine during the “return-to-normal” period of the COVID-19 pandemic does not adversely influence early clinical outcomes in pat	6
Functional recovery following hip and knee arthroplasty: subjective vs. objective assessment?	6
Increasing risk of revision due to infection after primary total hip arthroplasty: results from the Nordic Arthroplasty Register Association	6
Long-term migration of a cementless stem with different bioactive coatings. Data from a “prime” RSA study: lessons learned	6
Study protocol: The SunBurst trial—a register-based, randomized controlled trial on thoracolumbar burst fractures	6
Increased rate of complications in myasthenia gravis patients following hip and knee arthroplasty: a nationwide database study in the PearlDiver Database on 257,707 patients	6
Prosthesis survival after revision knee arthroplasty for “pain without loosening” versus “aseptic loosening”: a Danish nationwide study	6
Most surgeons still prefer to reduce overriding distal radius fractures in children	6
Do changes in outcomes following primary and revision hip replacement differ and relate to markers of socioeconomic status? A 1-year population-based cohort study	6
A comparison of uncemented short versus standard stem length in total hip arthroplasty: results from the Dutch Arthroplasty Register	6
Revision risk by using the direct superior approach (DSA) for total hip arthroplasty compared with postero-lateral approach: early nationwide results from the Dutch Arthroplasty Register (LROI)	6