159 papers, newest 30 shown · updated 2026-09-26 · Adult Reconstruction · All topics
The newest papers on total knee arthroplasty from the orthopaedic journals The Reduction reads, newest first, each with a one-line summary. The list is drawn from the digest’s archive and refreshed every week.
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Preoperative medial proximal tibial angle did not affect two-year outcomes after mobile-bearing UKA, though varus tibial component alignment helped patients with lower preoperative MPTA.
A decade-long California statewide analysis found stable, low surgical site infection rates after THA/TKA with no association between hospital volume, policy changes, or the COVID-19 pandemic.
A systematic review of 78 RCTs (8,515 TKA patients) found multimodal periarticular injection cocktails reduce pain and opioid use versus placebo, perform comparably to nerve blocks, and may benefit from corticosteroid additives, but no single optimal formulation was identified.
In TKA patients, hospital site—not neighborhood socioeconomic deprivation—predicted use of neuraxial anesthesia, which itself was linked to fewer 90-day ED visits.
Explantation of infected revision TKA components carries high morbidity, with only 35% 10-year survivorship free of reoperation and frequent reinfection, complications, and amputation.
Despite worse clinical outcomes, patients undergoing revision TKA for stiffness had similar postoperative pain scores and opioid consumption compared to those revised for other aseptic reasons.
Patient-Reported Outcomes Following Custom Unicompartmental Knee Arthroplasty.
Custom UKA implants showed no PROM advantage over off-the-shelf components and had higher 2-year revision rates, largely due to aseptic loosening, questioning their added value.
In this randomized trial, robotic-assisted functional alignment TKA produced modestly better 2-year patient-reported outcomes (function, satisfaction, pain) than conventional mechanically aligned TKA.
National data show a dramatic shift of TKA from inpatient to ambulatory surgery centers, with ASC volumes projected to exceed 2.1 million cases annually by 2040.
Preoperative frailty (higher Clinical Frailty Scale) independently predicted lateral compartment osteoarthritis progression and worse functional scores after medial UKA over a mean 70-month follow-up, aiding patient counseling.
In 370 PS-TKA patients followed over 4 years, changes in posterior tibial slope did not meaningfully affect functional outcomes, though increased slope modestly improved flexion; preoperative function was the strongest outcome predictor.
Medicare data show cementless TKA use rose sharply from 2016-2022, but Hispanic and dual-eligible (lower socioeconomic) patients had modestly lower odds of receiving this newer technique.
Peri-Incisional Blisters after Total Knee Arthroplasty: Risk Factors and Clinical Implications.
In over 23,000 TKAs, peri-incisional blistering occurred in 3.1% of cases and was strongly linked to higher reoperation and infection risk, especially with anticoagulation and obesity.
In a propensity-matched study of unrestricted kinematic alignment TKA, patients with severe preoperative tibial varus (MPTA <84°) achieved comparable 2-year outcomes, satisfaction, and survivorship to those with less deformity and to mechanically aligned TKA, suggesting this threshold need not be a contraindication.
This meta-analysis of 25 studies identifies male sex, obesity, diabetes, smoking, transfusion, high ASA score, and several perioperative factors as associated with periprosthetic joint infection after TKA.
A history of GI bleeding before hip or knee arthroplasty was linked to higher 90-day medical complications and increased 2-year risk of mechanical loosening/revision (THA) or PJI/revision (TKA).
In symmetrically aligned bilateral TKA patients, coronal spinal imbalance strongly predicted which knee patients preferred, despite similar overall clinical improvement between groups.
Retrospective study found retained periarticular hardware in conversion TKA increased operative time, blood loss, and early complications but not reoperation risk or two-year PROMs.
In a case series of 30 patients, an experienced surgeon reached proficiency with ROSA-assisted medial UKA by the sixth case, with excellent early tibial radiographic accuracy versus plan.
In 888 knee arthroplasties, roughly two-thirds of patients could not kneel or squat at one year, with higher BMI, lower preoperative ROM, poor kneeling confidence, older age, and female sex predicting inability.
In medial UKA patients selected by MRI, mild concomitant lateral bone marrow lesions did not worsen mid-term pain, function, or alignment outcomes compared to isolated medial lesions.
Secondary patella resurfacing after TKA produced meaningful improvements in knee scores and quality of life with high satisfaction, especially when performed more than 2.5 years after the index arthroplasty.
In a randomized trial, robotic-assisted medial UKA achieved more accurate component positioning, less pain, shorter hospital stay, and better mid-term Forgotten Joint Scores than jig-based UKA, though standard PROMs were similar.
Mildly elevated preoperative inflammatory markers are independently associated with increased periprosthetic joint infection, revision rates, and complications at three-year follow-up after knee arthroplasty.
Iodine-impregnated adhesive film dressing eliminates postoperative dressing changes and improves patient satisfaction after TKA without compromising outcomes.
In cadaveric TKA testing, lateral femoral joint-line distalization progressively increased LCL strain, with distalization beyond about 4 mm crossing a threshold linked to ligament microinjury and potential postoperative instability/dissatisfaction.
In 113 fixed-bearing lateral UKAs followed up to 22 years, implant survivorship remained high (87% at 20 years) with significant, durable improvements in Oxford Knee Scores.
In a single-center cohort, Medicare Advantage patients had longer hospital stays than traditional Medicare patients after elective hip/knee arthroplasty, with discharge disposition strongly modifying this relationship.
Diabetes is Associated with an Increased Risk of Arthrofibrosis Following Total Knee Arthroplasty.
In a large propensity-matched cohort, higher preoperative HbA1c levels were associated with progressively greater odds of early arthrofibrosis requiring MUA or lysis of adhesions within three months after TKA, highlighting the value of glycemic optimization.
In a large national cohort of TKA patients over 75, dementia strongly predicted postoperative delirium and altered which other risk factors (falls, anemia, ASA class) mattered, suggesting a role for preoperative cognitive screening.
Projections of Primary and Revision Hip and Knee Arthroplasty in the United States from 2005 to 2030
By 2030, primary total knee arthroplasty demand projected to increase 673% to 3.48 million procedures, while revision procedures expected to double by 2015-2026, requiring significant workforce expansion.
Projections of Primary and Revision Hip and Knee Arthroplasty in the United States from 2005 to 2030
Projections predict primary hip and knee arthroplasty demand will rise 174% and 673% respectively by 2030, with revision knee procedures surpassing hip revisions after 2007, guiding future resource planning.
Patient Satisfaction after Total Knee Arthroplasty: Who is Satisfied and Who is Not?
In a large Ontario cohort, about one in five TKA patients were dissatisfied, with unmet expectations, poor 1-year WOMAC scores, preoperative rest pain, and complications as key predictors.
The Knee Society Total Knee Arthroplasty Roentgenographic Evaluation and Scoring System
This 1989 paper introduces the Knee Society's standardized radiographic scoring system for TKA to enable consistent, comparable reporting of results across surgeons and institutions.
Health-Related Quality of Life in Total Hip and Total Knee Arthroplasty
This systematic review of 74 studies confirms THA and TKA reliably improve health-related quality of life, with hip arthroplasty and primary surgery yielding greater gains than knee arthroplasty or revision surgery.
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