Total Hip Arthroplasty vs Hip Resurfacing in Patients Over 65: A Propensity Score-Matched Comparison of Patient-Reported Outcomes.

Background: Hip-resurfacing arthroplasty (HRA) has grown in popularity as an alternative to total hip arthroplasty (THA) but is primarily utilized and indicated in younger patients with sufficient bone stock and aspirations of returning to higher level of physical activity. While the mechanical structure of HRA implants allows for sparing of the femoral neck and more anatomical weight-bearing distribution, questions surround its viability in older patients, specifically those aged 65 years or older. We undertook this study to compare the results of HRA vs THA in a population of older patients, with specific focus on patient-reported outcome measures.

Hip Resurfacing Arthroplasty in Men: A Minimum 15-Year Follow-Up Study.

Background: Hip resurfacing arthroplasty (HRA) has emerged as an alternative to total hip arthroplasty for managing osteoarthritis, particularly in younger, active men. However, long-term data on HRA outcomes in the United States remains limited.

Methods: We retrospectively examined 472 consecutive HRA cases in 407 men performed between January 2006 and December 2008 with minimum 15-year follow-up outcomes.

Robotic-assistance and computer-navigation have similar rates of intraoperative fracture and return to the operating room within 1 year to fluoroscopy-only direct anterior total hip arthroplasty.

Introduction: The use of technology in direct anterior approach (DAA) total hip arthroplasty (THA) is expanding. Although the use of computer-navigation (CN-THA) and robotics (RA-THA) has previously demonstrated improved component positioning, it is important to understand whether its use is associated with differences in intraoperative complications or early return to the operating room when compared to fluoroscopy-only (manual-THA) DAA THA.

Methods: 3433 DAA THAs (226 RA-THA, 1007 CN-THA, 2200 manual-THA) performed at a single institution were retrospectively reviewed.

Inferior short-term survivorship and patient outcomes for cementless compared to hybrid fixation with a cemented femoral implant in a novel blade-anchored medial unicompartmental knee arthroplasty design: An analysis of 132 cases.

Purpose: For younger, more active patients, a cementless unicompartmental knee arthroplasty (UKA) might be more advantageous than cemented fixation. Therefore, this study aimed to compare implant survivorship and patient-reported outcome measures (PROMs) between cementless and hybrid fixation (cemented femur and cementless tibial fixation) in a novel tibial blade-anchored, medial UKA design.

Methods: Two surgeon's registries were reviewed for patients who underwent primary cementless or hybrid medial UKA for medial osteoarthritis between 2019 and 2022.

Blood Metal Ion Levels After Hip Resurfacing: A Comparison of 2 Different Implants.

Background: While hip resurfacing arthroplasty has been shown to be an effective prosthetic solution for end-stage osteoarthritis, prior studies have also reported an increasing concern regarding blood metal ion levels following the use of metal-on-metal articulations. The purpose of this study was to compare early and midterm blood metal ion levels to functional outcomes and implant survivorship for patients treated with the Birmingham Hip Resurfacing (BHR) implant system and the ReCap Magnum.

Methods: A retrospective review identified 104 patients who underwent 134 hip resurfacing arthroplasties using BHR (n = 67) and ReCap (n = 67) at a single institution between 2006 and 2018.

Correction of Acquired Leg Length Discrepancy after Hip Resurfacing Arthroplasty by Revision Resurfacing: A Case Report.

Case: A 53-year-old man presented with a 13-mm leg length discrepancy following left hip resurfacing arthroplasty (HRA), resulting in pain and imbalance. Advanced osteoarthritis of the contralateral hip was also noted. The patient strongly preferred HRA over total hip arthroplasty.

Functional Acetabular Component Positioning During Direct Anterior Approach Hip Arthroplasty Using a Novel Three-Dimensional Virtual Mesh Imaging System With Fluoroscopy.

Background: Optimal position of total hip arthroplasty (THA) components is critical for joint mechanics and stability. Acetabular component positioning during supine surgery in direct anterior approach (DAA) THA may be different in the standing position postoperatively, which traditional fluoroscopy is unable to predict. A novel 3-dimensional (3D) image analysis technology (IAT) that uses artificial intelligence to measure the tilt and rotation of the pelvis has enabled prediction of component positioning from supine to standing.

Clinical outcomes and return to dance after total hip arthroplasty or hip resurfacing in professional dancers.

Aims: Professional dancers represent a unique patient population in the setting of hip arthroplasty, given the high degree of hip strength and mobility required by their profession. We sought to determine the clinical outcomes and ability to return to professional dance after total hip arthroplasty (THA) or hip resurfacing arthroplasty (HRA).

Methods: Active professional dancers who underwent primary THA or HRA at a single institution with minimum one-year follow-up were included in the study.

Telemedicine in Arthroplasty Patients: Which Factors Are Associated With High Satisfaction?

Background: During the initial coronavirus pandemic lockdown period, remote hip and knee arthroplasty care was heavily employed out of necessity. However, data on patient satisfaction with telemedicine specific to hip and knee arthroplasty patients remains unknown.

Methods: All patients who had a telemedicine visit in the hip and knee arthroplasty department and completed a telemedicine satisfaction survey at a specialty hospital from April 1, 2020, to December 31, 2020, were identified.

Golfing after Orthopaedic Surgery: A longitudinal follow-up (GOLF) study protocol.

Aims: The primary aim of this prospective, multicentre study is to describe the rates of returning to golf following hip, knee, ankle, and shoulder arthroplasty in an active golfing population. Secondary aims will include determining the timing of return to golf, changes in ability, handicap, and mobility, and assessing joint-specific and health-related outcomes following surgery.

Methods: This is a multicentre, prospective, longitudinal study between the Hospital for Special Surgery, (New York City, New York, USA) and Edinburgh Orthopaedics, Royal Infirmary of Edinburgh, (Edinburgh, UK).

Novel Use of an Accelerometer to Assess Load Asymmetry Over Time After Hip Resurfacing Arthroplasty.

Background: There is limited knowledge regarding usage of wearable technology to guide return to sport after hip resurfacing arthroplasty (HRA). This study evaluated the use of accelerometers to identify when symmetry is restored between operative and nonoperative limbs.

Methods: A total of 26 primary HRA patients performed 5 validated physical tests before, 3 and 6 months after HRA: broad jump, double-leg vertical jump (DLVJ), hop test, lateral single-leg jump (LSLJ), and vertical single-leg jump.

Exuberant Rice Body Formation Associated with Adverse Local Tissue Reaction After Hip Resurfacing Arthroplasty: A Case Report and Review of the Literature.

Case: A 65-year-old man with osteoarthritis of the hip developed a soft-tissue mass of the inferior gluteal region 3 years after metal-on-metal resurfacing hip arthroplasty. Clinical and imaging findings suggested an adverse local tissue reaction. Intraoperatively, nearly 1 liter of intra-articular fibrinous loose bodies (rice bodies) was removed, and histology showed features of an adaptive immune response.

Erratum: Author Correction: The influence of HLA genotype on the development of metal hypersensitivity following joint replacement.

[This corrects the article DOI: 10.1038/s43856-022-00137-0.].

Contemporary Analysis of Inconsistencies Between Physician-reported Disclosures at the AAOS Annual Meeting and Industry-reported Financial Disclosures in the Open Payments Database.

Introduction: Healthcare regulators and patients are increasingly interested in financial transparency between physicians and the industry because of concerns of bias.

Methods: Disclosures for every first and last author with a medical degree from the United States associated with a poster or podium presentation at the American Academy of Orthopaedic Surgeons (AAOS) 2019 Annual Meeting were identified. Author characteristics were collected.

The influence of HLA genotype on the development of metal hypersensitivity following joint replacement.

Background: Over five million joint replacements are performed across the world each year. Cobalt chrome (CoCr) components are used in most of these procedures. Some patients develop delayed-type hypersensitivity (DTH) responses to CoCr implants, resulting in tissue damage and revision surgery.

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 patients undergoing total hip replacement: a case-control study.

Background And Purpose: Elective total hip replacement (THR) was halted in our institution during the COVID-19 surge in March 2020. Afterwards, elective THR volume increased with emphasis on fast-track protocols, early discharge, and post-discharge virtual care. We compare early outcomes during this "return-to-normal period" with those of a matched pre-pandemic cohort.

Favorable Radiographic and Early Postoperative Results with the Inguinal Crease Direct Anterior Total Hip Arthroplasty.

We report the results, scar appearance, and patient satisfaction of a direct anterior approach total hip arthroplasty performed through an oblique inguinal incision. Patients were separated into direct anterior THA (n = 29) or an oblique inguinal incision anterior approach (n = 41). Clinical and radiographic data was compared, scar appearance was assessed by the Vancouver Scar Scale (VSS), and satisfaction was assessed by a simple questionnaire.

Robotic Assistance for Posterior Approach Total Hip Arthroplasty Is Associated With Lower Risk of Revision for Dislocation When Compared to Manual Techniques.

Background: Robotic-assistance total hip arthroplasty (RA-THA) and computer navigation THA (CN-THA) have been shown to improve accuracy of component positioning compared to manual techniques; however, controversy exists regarding clinical benefit. Moreover, these technologies may expose patients to risks. The purpose of this study is to compare rates of intraoperative fracture and complications requiring reoperation within 1 year for posterior approach RA-THA, CN-THA, and THA with no technology (Manual-THA).

Hip resurfacing and posterior approach total hip arthroplasty have equivalent blood loss when tranexamic acid is used: a propensity score matched cohort analysis.

Introduction: Hip resurfacing (HR) requires a larger approach and soft tissue dissection and might therefore be associated with increased blood loss compared to total hip arthroplasty (THA). However, the effect of the adoption of tranexamic acid (TXA) in this setting is unknown. Therefore, the current study compares the blood loss and transfusion requirements between HR and posterior THA in patients receiving TXA.

Hip Resurfacing vs Total Hip Arthroplasty in Patients Younger than 35 Years: A Comparison of Revision Rates and Patient-Reported Outcomes.

Background: Hip resurfacing arthroplasty (HRA) and total hip arthroplasty (THA) are two treatment options for end-stage degenerative hip conditions. The objective of this single-center retrospective cohort study was to compare implant survival and patient-reported outcomes (PROs) in young patients (≤35 years) who underwent HRA or THA.

Methods: All patients aged 35 years or younger who underwent HRA or THA with a single high-volume arthroplasty surgeon between 2004 and 2015 were reviewed.

Patients Who Undergo Early Aseptic Revision TKA Within 90 Days of Surgery Have a High Risk of Re-revision and Infection at 2 Years: A Large-database Study.

Background: Early aseptic revision within 90 days after primary TKA is a devastating complication. The causes, complications, and rerevision risks of aseptic revision TKA performed during this period are poorly described.

Questions/purposes: (1) What is the likelihood of re-revision within 2 years after early aseptic TKA revision within 90 days compared with that of a control group of patients undergoing primary TKA? (2) What are the indications for early aseptic TKA revision within 90 days? (3) What are the differences in revision risk between different indications for early aseptic revision TKA?

Methods: Patients who underwent unilateral aseptic revision TKA within 90 days of the index procedure were identified in a national insurance claims database (PearlDiver Technologies) using administrative codes.

Postoperative Patient-reported Pain and Opioid Consumption After Total Hip Arthroplasty: A Comparison of the Direct Anterior and Posterior Approaches.

Introduction: Although one of the touted benefits of the direct anterior approach (DAA) includes decreased postoperative pain, there is no consensus on the effect of surgical approach on postoperative pain and subsequent analgesic consumption.

Methods: Consecutive patients undergoing total hip arthroplasty by a single surgeon from May 2016 to March 2020 were identified. Procedures were categorized as DAA or posterior approach.