BACKGROUND. High-volume surgeons and hospital systems have been shown to deliver higher value care in several studies. However, no
Background. The purpose of this study was to evaluate the independent contributions of surgeon procedure volume, hospital procedure volume, and standardisation of care on short-term post-operative outcomes and resource utilisation in lower-extremity total joint arthroplasty. Methods. An analysis of 182,146 consecutive patients who underwent primary total joint arthroplasty was performed with use of data entered into the Perspective database by 3421 physicians from 312 hospitals over a two-year period. Adherence to
With the recent reductions in junior doctor hours levels of staffing have become ever more critical as clinical duties are covered with fewer junior doctors available on a daily basis. Trainees also have to meet specific requirements of the curriculum and thus need to be allocated to posts with suitable opportunities. There is little evidence available to account for the allocation of posts to individual trusts and departments with training post numbers seem driven by historical allocation, rather than based on trainee and local population needs. ‘SHO’ tier numbers were obtained for each orthopaedic department within the Yorkshire deanery through direct contact with the departments. Data was also obtained to establish the workload of these departments. Information was gathered from the national neck of femur database, hospital episode statistics, the national joint registry, the trauma audit and research network (TARN) and finally Dr Foster and the national census. The workload data was then analysed and compared to the staffing levels in each department. Data was obtained for fourteen trusts across the Yorkshire Deanery. The percentage of SHO tier doctors in training posts ranged from 0 to 78% (mean 37%) across the trusts surveyed, with wide variation in make up of the SHO tier in each department. Workload was standardised using the unit of cases/SHO/annum. The workload for neck of femur fractures ranged from 8 to 52 cases/SHO/annum (mean 36). General trauma admissions ranged from 199 to 383 cases/SHO/annum (mean 288). Elective arthroplasty admissions ranged from 11 to 174 (mean 70). Pearson correlation coefficients were 0.5 for elective arthroplasty and neck of femur admissions and 0.8 for trauma admissions. There is wide variation in workload between trusts when standardised for the number of SHO's with weak to moderate correlations between the number of juniors and workload in each department. This wide variation will impact on patient care, but also the training opportunities available in different posts – where workload is higher it is likely there will be an increased need for ward based work away from clinics and theatre lists. The introduction of the foundation programme and MMC has changed the structure of the SHO grade at a time when the EWTD introduction has also had a profound impact on working patterns and hours. At this time we believe there is a need for a review of trainee allocations nationally with comparison to workload in each trust, trainee logbook data and data on curriculum competencies met. With the proposed reductions in trainee numbers now is the time for a centrally led review of these posts via the Royal College, BOA and BOTA to ensure high quality training, maintain high standards of patient care and secure the future of the orthopaedic profession.
Persistent wound drainage has been recognized as one of the major risk factors of periprosthetic joint infection (PJI). Currently, there is no consensus on the management protocol for patients who develop wound drainage after total joint arthroplasty (TJA). The objective of our study was to describe a multimodal protocol for managing draining wounds after TJA and assess the outcomes. We conducted a retrospective study of 4,873 primary TJAs performed between 2008 and 2015. Using an institutional database, patients with persistent wound drainage (>48 hours) were identified. A review of the medical records was then performed to confirm persistent drainage. Draining wounds were first managed by instituting local wound care measures. In patients that drainage persisted over 7 days, a superficial irrigation and debridement (I&D) was performed if the fascia was intact, and if the fascia was not intact modular parts were exchanged. TJAs that underwent subsequent I&D, revision surgery, or developed PJI within one year were identified.Aim
Methods
Papers to be discussed during this session include: Surgical approach and THA results - does it matter?; Minimizing infection in TJA - doing all you can….; I&D or Revision, 1 vs. 2 stage for infected TKA - now or later?; Barbed sutures - friend or foe?; Constraint in TKA - promises and pitfalls!; Tendonitis after THA - minimizing the pain; MRI after THA - when and why…….; Pain, opioids, and outcomes - sorting fact from fictions!; Outpatient TKA - home free?; TKA in general - does home matter?; Drainage after TKA - mopping up the mess!; Head size in THA - does it matter, help or hurt?; Hip bone connected to the spine bone - so what!; Tourniquet in TKA - does it make a difference?; Standardise or personalise? - that is the question!; Trusting the robot - really?; The TKA - rotation, rotation, rotation.
Nutritional Status and Short-Term Outcomes Following THA; Initial Metal Ion Levels Predict Risk in MoM THA; THA Bearing Surface Trends in the US ‘07- ’14; Dislocation Following Two-Stage Revision THA; Timing of Primary THA Prior to or After Lumbar Spine Fusion; Failure Rate of Failed Constrained Liner Revision; ESR and CRP vs. Reinfection Risk in Two-Stage Revision?; Mechanical Complications of THA Based on Approach; Impaction Force and Taper-Trunnion Stability in THA; TKA in Patients Less Than 50 Years of Age; Post-operative Mechanical Axis and 20-year TKA Survival and Function; Return to Moderate to High-intensity Sports after UKA; “Running Two Rooms” and Patient Safety in TJA; Varus and Implant Migration and Contact Kinematics after TKA; Quadriceps Snips in 321 Revision TKAs; Tubercle Proximalization for Patella Infera in Revision TKA; Anterior Condylar Height and Flexion in TKA; Compression Bandage Following Primary TKA; Unsupervised Exercise vs. Traditional PT After Primary TKA and UKA.
With the increasing use of 3D medical imaging, it is possible to analyze 3D patient anatomy to extract features, trends and population specific shape information. This is applied to the development of ‘standard implants’ targeted to specific population groups. Human beings are diverse in their physical makeup while implants are often designed based on some key measurements taken from the literature or a limited sampling of patient data. The different implant sizes are often scaled versions of the ‘average’ implant, although in reality, the shape of anatomy changes as a function of the size of patient. The implant designs are often developed based on a certain demographic and ethnicity and then, simply applied to others, which can result in poor design fitment [1]. Today, with the increasing use of 3D medical imaging (e.g. CT or MRI), it is possible to analyze 3D patient anatomy to extract features, trends and population specific shape information. This can be applied to the development of new ‘standard implants’ targeted to a specific population group [2]. Our population analysis was performed by creating a Statistical Shape Model (SSM) [3] of the dataset. In this study, 40 full Chinese cadaver femurs and 100 full Caucasian cadaver femurs were segmented from CT scans using Mimics®. Two different SSMs, specific to each population, were built using in-house software tools. These SSMs were validated using leave-one-out experiments, and then analyzed and compared in order to enhance the two population shape differences.INTRODUCTION
PATIENTS & METHODS
THA: Approaches and Recovery; THA: Instability and Spinal Deformity; Revision for THA Instability: Dual Mobility Cups; Removal of Infected THA: Risk Factors for Complications; Tribocorrosion: Incidence in the Symptomatic THA; THA: Outcomes and Education Levels; THA: Satisfaction levels and Residual Symptoms; THA: Expectations and LOS; TKA: Kneeling and Recreation Expectations; TKA: Alignment and Long Term Survival; Patello-Femoral Arthroplasty vs TKA; Unicompartmental Knee Arthroplasty and Age; Wound Treatments and Sepsis in TJA; TKA: Managing Sepsis With I & D; Chronic Salvage in TKA: When is Enough Enough?; Revision TKA: Single Component Revision
Effectiveness of Liposomal Bupivacaine for Post-Operative Pain Control in Total Knee Arthroplasty: A Prospective, Randomised, Double Blind, Controlled Study Pericapsular Injection with Free Ropivacaine Provides Equivalent Post-Operative Analgesia as Liposomal Bupivacaine following Unicompartmental Knee Arthroplasty Total Knee Arthroplasty in the 21st Century: Why Do They Fail? A Fifteen-Year Analysis of 11,135 Knees Cryoneurolysis for Temporary Relief of Pain in Knee Osteoarthritis: A Multi-Center, Prospective, Double-Blind, Randomised, Controlled Trial Pre-Operative Freezing of Sensory Nerves for Post-TKA Pain: Preliminary Results from a Prospective, Randomised, Double-Blind Controlled Trial Proximalization of the Tibial Tubercle Osteotomy: A Solution for Patella Infera during Revision Total Knee Arthroplasty Treatment of Periprosthetic Joint Infection Based on Species of Infecting Organism: A Decision Analysis Alpha-Defensin Test for Diagnosis of PJI in the Setting of Failed Metal-on-Metal Bearings or Corrosion Risk of Reinfection after Irrigation and Debridement for Treatment of Acute Periprosthetic Joint Infection following TKA Serum Metal Levels for the Diagnosis of Adverse Local Tissue Reaction Secondary to Corrosion in Metal-on-Polyethylene Bearing Total Hip Arthroplasty Intra-Articular Injection for Painful Hip OA - A Randomised, Double-Blinded Study Six-Year Follow-up of Hip Decompression with Concentrated Bone Marrow Aspirate to Treat Femoral Head Osteonecrosis No Benefit of Computer-Assisted TKA: 10-Year Results of a Prospective Randomised Study
The following papers will be discussed during this session: 1) Staph Screening and Treatment Prior to Elective TJA; 2) Unfulfilled Expectations Following TJA Procedures; 3) Thigh Pain in Short Stem Cementless Components in THR; 4) Is the Direct Anterior Approach a Risk Factor for Early Failure?; 5) THA Infection - Results of a 2nd 2-Stage Re-implantation - Clinical Trial of Articulating and Static Spacers; 6) THA Revision - Modular vs. Non Modular Fluted Tapered Stems-Total Femoral Replacement for Femoral Bone Loss - Cage + TM Augment vs. Cup Cage for Acetabular Bone Loss; 7) Do Injections Increase the Risk of Infection Prior to TKA?; 8) Long-Acting Opioid Use Predicts Perioperative Complication in TJA; 9) UKA vs. HTO in Patients Under 55 at 5–7 years; 10) Stemming Tibial Component in TKA Patients with a BMI > 30; 11) The Effect of Bariatric Surgery Prior to Total Knee Arthroplasty; 12) Oral Antibiotics and Reinfection Following Two-Stage Exchange; 13) Two-Stage Debridement with Prosthetic Retention for Acute TKA Infections; 14) Patient-Reported Outcomes Predict Meaningful Improvement after TKA; 15) Contemporary Rotating Hinge TKA; 16) Liposomal Bupivacaine in TKA; and 17) Noise Generation in Modern TKA: Incidence and Significance.
Metal Ion Levels Not Useful in Failed M-O-M Hips: Systematic Review; Revision of Failed M-O-M THA at a Tertiary Center; Trunnionosis in Metal-on-Poly THA?; Do Ceramic Heads Eliminate Trunnionosis?; Iliopsoas Impingement After 10 THA; Pain in Young, Active Patients Following THA; Pre-operative Injections Increase Peri-prosthetic THA Infection; Debridement and Implant Retention in THA Infection; THA after Prior Lumbar Spinal Fusion; Lumbar Back Surgery Prior to THA Associated with Worse Outcomes; Raising the Joint Line Causes Mid-Flexion Instability in TKA; No Improvement in Outcomes with Kinematic Alignment in TKA; Botox For TKA Flexion Contracture; Intra-operative Synovitis Predicts Worse Outcomes After TKA for OA; When is it Safe for Patients to Drive After Right TKA?; Alpha-Defensin for Peri-prosthetic Joint Infection; Medial Tibia Overhang and Pain Score After TKA
Laxity Differences in CR & PS TKA -Achieving Total Knee Balancing Using Bone Cut Adjustments and Correlation with Varus-Valgus Lift-Off The Incidence and Mid Term Functional Effect of Partial PCL Recession in Fixed and Mobile Bearing PCL Retaining TKA Clinical and Radiographic Results of a Modern Design, Onlay Patellofemoral Arthroplasty at a Minimum Two-Year Follow-Up Custom Cutting Guides Do Not Improve Total Knee Arthroplasty Outcomes at 2 Years Follow-up Tourniquet Use During TKA -Effect on Recovery of Strength and Function: a randomised, double-blind, control trial Prospective, Randomised Trial of Standard vs Cross-linked Tibial Poly Crosslink vs. Conventional TKA Poly Retrieval Analysis Unplanned Readmissions after TKA Using a Statewide Database Does Prior Cartilage Restoration Negatively Impact Outcomes of TKA Periprosthetic Femur Fracture: Better to Revise than to Fix Increased Non-stemmed Tibial Failures in Patients with a BMI ≥ 35 The Effect Of Canal Fit And Fill in Revision THA With Modular, Fluted, Tapered Stems The Wagner Cone Stem For The Challenging Femur In Primary Total Will Metal Heads Restore Integrity of Corroded Trunnions at Revision THR? Influence of Head Size, Materials and Taper Design on Fretting and Corrosion of Metal on Polyethylene THR Delta Ceramic on Ceramic THA – Midterm IDE Study Results Refining Acetabular Safe Zone for Posterior Approach in THA Comparison of a Pain Program for THA with and without Liposome Bupivacaine
The NW Advancing Quality programme is a regional one aimed at improving the delivery of evidence based care. Hip and knee replacement has been one of 5 clinical areas. Over a 3 year period performance at all 24 NW trusts has been measured. For hip and knee replacement patients the evidence based care has been delivery of antibiotic and thromboembolic prophylaxis. Robust data has been collected on the choice and timeliness of prophylaxis and readmission rates for each trust. The programme included financial and reputational (public reporting) rewards for top performing units. Sharing of data and collaborative working has been put in place to improve overall performance Over the 3 years of the programme data has been collected on 47,825 patients. Across the region delivery of the measures has improved from 88 to 96%. Patients achieving all measures and avoiding readmission has improved from 64 to 85%. There has been reduced variation in performance. The biggest improvement in performance has occurred in the initially poorer perfoming trusts (year 1 range 54–97%, year 3 range 86–99%). All cause readmission within 28 days of discharge has fallen from 9 to 7%. The progamme has demonstrated that it is possible to improve delivery of evidence based care and clinical outcomes on a regional basis. It has evolved from a stand alone programme to continue as a regional CQUIN. The programme has had wider benefits. Units report a change of culture producing improved delivery of other protocols. The collaboraive working has created a multidisciplinary network with improvement initiatives widened to include comparing PROMS data, Enhanced Recovery and Shared Decision Making. Challenges have included obtaining consensus regarding the initial and now soon to be introduced updated thromboembolic measures
Direct Anterior vs Mini-posterior THA with Advanced Pain & Rehab Protocols Intra-articular Injection Within a Year of THA Predicts Early Revision Specific Screening of MoM Hip Patients Significantly Increases Revision Surgery Taper Analysis Supports Retention of Well-fixed Stem in Revision of MoM THA Variables Influencing Corrosion of Modular Junctions in Metal-on-Poly THR Lysis and Wear of Large and Standard Metal on Highly Crosslinked Poly A Decade of Highly Crosslinked Poly in THA: A Review of 1,484 Cases Wear of Highly Crosslinked Poly with 36mm Heads – 5 Yr Follow Up Fixation and Wear of Contemporary Acetabulum and Crosslinked Poly at 10 Years Prospective, Randomised Study of 2 Skin Preps in Reducing SSI after TJA Diagnostic Threshold for Synovial Fluid Analysis in Late Peri-prosthetic Infection, Diabetes, Hyperglycemia, Hemoglobin A1c and the Risk of Joint Infections Infection Risk Stratification in THA and TKA Risk Factors for Infection After THA: Preventable vs Non-preventable Do Space Suits Increase Contamination and Deep Infection in TJA Improving Detection of PJI in THA Through Multiple Sonicate Fluid Cultures Sonication for the Enhanced Diagnosis of Prosthetic Joint Infection Aspiration During 2-Stage Knee Revision Inadequate for Infection Detection Revision Rates and Outcomes Related to Duration of TKA Surgery Does Operative Time Affect Infection Rate Following Primary TKA? Liposomal Bupivacaine: The First 1,000 Cases in a New Era Cement Depth and Stem Stability in Revision TKA with Hybrid Fixation
The presentations to be discussed by the panel are: 1.) No Increased Risk of Knee Arthroplasty Failure in Metal Hypersensitive Patients: A Matched Cohort Study; 2.) Knee Arthrodesis is Most Likely to Control Infection and Preserve Function Following Failed 2 Stage Procedure for Treatment of Infected TKA: A Decision Tree Analysis; 3.) Does Malnutrition Correlate with Septic Failure of Hip and Knee Arthroplasties?; 4.) Diagnosing Periprosthetic Joint Infection: The Era of the Biomarker Has Arrived; 5.) Are Patient Reported Allergies a Risk Factor for Poor Outcomes in Total Hip and Knee Arthroplasty?; 6.) Revising an HTO or UKA to TKA: Is it more like a Primary TKA or a Revision TKA?; 7.) At 5 Years Highly-Porous-Metal Tibial Components Were Durable and Reliable: A Randomised Clinical Trial of 389 Patients; 8.) Current Data Does Not Support Routine Use of Patient-Specific Instrumentation in Total Knee Arthroplasty; 9.) Barbed vs. Standard Sutures for Closure in Total Knee Arthroplasty: A Multicenter Prospective Randomised Trial; 10.) Particles from Vitamin-E-diffused HXL UHMWPE Induce Less Osteolysis Compared to Virgin HXL UHMWPE in a Murine Calvarial Bone Model; 11.) Construct Rigidity: Keystone for Reconstructing Pelvic Discontinuity; 12.) Do You Have to Remove a Corroded Femoral Stem?; 13.) Direct Anterior Versus Mini-Posterior Total Hip Arthroplasty with the Same Advanced Pain Management and Rapid Rehabilitation Protocol: Some Surprises in Early Outcome; 14.) Adverse Clinical Outcomes in a Primary Modular Neck/Stem System.
Aims. The principles of
In 2007, the National Hip Fracture Database (NHFD) was conceived in the United Kingdom (UK) as a national audit aiming to improve hip fracture care across the country. It now represents the world's largest hip fracture registry. The purpose of the NHFD is to evaluate aspects of best practice for hip fracture care, at an institutional level, that reflect the
Despite the vast quantities of published artificial intelligence (AI) algorithms that target trauma and orthopaedic applications, very few progress to inform clinical practice. One key reason for this is the lack of a clear pathway from development to deployment. In order to assist with this process, we have developed the Clinical Practice Integration of Artificial Intelligence (CPI-AI) framework – a five-stage approach to the clinical practice adoption of AI in the setting of trauma and orthopaedics, based on the IDEAL principles (. https://www.ideal-collaboration.net/. ). Adherence to the framework would provide a robust
The Australia and New Zealand Sarcoma Association established the Sarcoma Guidelines Working Party to develop national guidelines for the management of Sarcoma. We asked whether surgery at a specialised centre improves outcomes. A systematic review was performed of all available evidence pertaining to paediatric or adult patients treated for bone or soft tissue sarcoma at a specialised centre compared with non-specialised centres. Outcomes assessed included local control, limb salvage rate, 30-day and 90-day surgical mortality, and overall survival. Definitive surgical management at a specialised sarcoma centre improves local control as defined by margin negative surgery, local or locoregional recurrence, and local recurrence free survival. Limb conservation rates are higher at specialised centres, due in part to the depth of surgical experience and immediate availability of multidisciplinary and multimodal therapy. A statistically significant correlation did not exist for 30-day and 90-day mortality between specialised centres and non-specialised centres. The literature is consistent with improved survival when definitive surgical treatment is performed at a specialised sarcoma centre.
Distal radius fractures (DRF) are common and the indication for surgical treatment remain controversial in patients higher than 60 years old. The purpose of the study was to review and analyze the current