Publications by authors named "Brinkman J"

Background: The Latarjet and other bony augmentation procedures are commonly used to treat anterior shoulder instability in the setting of significant glenoid bone loss. Although several fixation strategies have been reported, the biomechanical strength of these techniques remains poorly understood.

Purpose: To perform a systematic review of the biomechanical strength of glenoid bony augmentation procedures for anterior shoulder instability.

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Purpose: To compare Medicaid and Medicare rates for the 20 most commonly billed orthopaedic sports medicine procedures.

Methods: Medicaid reimbursement rates were obtained from state-specific fee schedules. Medicare rates were collected from the Centers for Medicare & Medicaid Services Physician Fee Schedule, along with relative value units for each procedure.

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  • The study analyzed trends in the economic and utilization of sliding hip screws (SHS) and intramedullary nails (IMN) for treating intertrochanteric femur fractures among Medicare patients over 21 years.
  • It found that the use of IMN significantly increased by 695%, while SHS use dropped by 96% during the same period.
  • Furthermore, physician reimbursements for both methods decreased, with SHS averaging $943.36 and IMN $999.88, indicating a possible cost-effectiveness in choosing SHS when suitable.
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  • A study aimed to investigate the link between testosterone replacement therapy (TRT) and the risk of anterior cruciate ligament (ACL) injuries using a large insurance database.
  • Researchers matched 160,839 patients on TRT for at least 3 months with controls who weren't on TRT, finding a significantly higher ACL injury rate in the TRT group (17.8 per 10,000 person-years) compared to controls (4.9 per 10,000 person-years).
  • The results showed all age groups over 25 and both males and females on TRT had a higher likelihood of ACL injuries, with males being 3.13 times and females 1.94 times more likely compared to their counterparts.
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Purpose: To assess surgeon reimbursement for common arthroscopic procedures, including arthroscopic meniscal debridement and arthroscopic rotator cuff repair, in patients with differing risk profiles within the Medicare population.

Methods: A publicly available Medicare database was used to identify all cases of arthroscopic meniscal debridement and arthroscopic rotator cuff repair procedures billed to Medicare from 2013 to 2020. The surgeon reimbursement from Medicare was collected and adjusted for inflation.

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  • Obstructive sleep apnea (OSA) is common in asthma patients, and the duration of asthma may increase the risk of developing OSA, indicating a possible link between the two conditions.
  • Researchers studied the breathing responses to low oxygen levels in rats with asthma (sensitized with ovalbumin) and compared them to control rats (saline), finding that those with asthma had heightened responses due to increased breathing frequency.
  • The study concluded that asthma-related inflammation, rather than mechanical issues in the lungs, may enhance breathing control mechanisms, potentially contributing to the ventilatory instability that could lead to sleep apnea in humans.
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Aim: To investigate the effect of pyruvate and glucose on leucine transamination and 3-methylbutanal production by Lactococcus lactis, including the comparison with cells possessing glutamate dehydrogenase (GDH) activity.

Methods And Results: Lactococcus lactis cells were incubated in chemically defined medium (CDM) with the pH controlled at 5.2 to mimic cheese conditions.

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  • The study evaluates a new technique for preparing an autograft patch from the long head of the biceps to aid in repairing rotator cuff injuries.
  • It involved analyzing tissue samples from patients who underwent biceps tenodesis, comparing compressed and non-compressed samples for signs of tenocyte damage.
  • Results indicate that the compression process did not significantly harm the tenocyte morphology, suggesting it is a safe method for enhancing rotator cuff repairs.
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Thyroid-stimulating hormone (TSH) and subsequent free thyroxine (FT4) concentrations outside the reference interval (RI) are used to diagnose thyroid diseases. Most laboratories do not provide age-specific RIs for TSH and FT4 beyond childhood, although TSH concentrations vary with age. Therefore, we aimed to establish TSH and FT4 age-specific RIs throughout life and aimed to determine whether using these RIs would result in reclassification of thyroid disease diagnoses in adults.

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Objective: To analyze and quantify the change in United States of America Medicare reimbursement rates for the 30 most commonly performed spinal imaging procedures.

Materials And Methods: The Physician Fee Schedule Look-Up Tool from the Centers for Medicare & Medicaid Services was utilized to find and extract the 28 most billed spinal imaging procedures. All data was adjusted for inflation and listed in 2020 US dollars.

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Anterior glenohumeral instability is one of the most common injuries suffered from sport. Despite padding and conditioning, the shoulder joint remains particularly vulnerable to injury, especially in the setting of contact. The overall rate of anterior instability is reported to be 0.

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Background: Medicare (MCR) reimbursement for arthroplasty procedures has been declining, but little has been reported on Medicaid (MCD) reimbursement. We sought to determine MCD reimbursement rates using state MCD data for nine arthroplasty procedure codes and compare them to MCR rates.

Methods: The Centers for Medicare & Medicaid Services physician fee schedule was used to collect MCR reimbursement rates, and state MCD fee schedules were accessed to collect MCD rates for nine procedures encompassing primary and revision hip and knee arthroplasty surgery.

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Objectives: This study seeks to evaluate the variability of Medicaid reimbursement and compare it with Medicare reimbursement using the 20 most commonly billed orthopaedic trauma Current Procedural Terminology (CPT) codes nationwide. The authors anticipate significant variability between states and hypothesize that Medicaid payment will be significantly less than Medicare payment.

Methods: The top 20 most common orthopaedic trauma surgery procedural codes were identified from a previous analysis performed by Haglin et al.

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  • After total knee arthroplasty (TKA), patients aim to return not just to work and sports, but also to daily activities like walking and grocery shopping, though data on how quickly they can do this is limited.
  • A study conducted in a Dutch orthopedic hospital assessed the percentage of patients returning to daily activities, work, and sports at 3 and 6 months post-TKA while considering various patient and surgical factors.
  • The findings showed that around 80% of patients returned to daily activities, work, and sports within 6 months post-surgery, although individual factors did not consistently influence this return.
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Purpose: To assess outcomes of arthroscopic posterior capsular release among athletes for loss of terminal extension following anterior cruciate ligament (ACL) reconstruction.

Methods: A retrospective review of prospectively collected data was performed for patients undergoing arthroscopic posterior capsular release for knee extension loss following ACL reconstruction between January 2014 and December 2019. Procedure indications included extension loss greater than 10° at least 3 months after ACL reconstruction that was refractory to physical therapy.

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Purpose: To use Google trends to explore differences in public interest among types of anterior cruciate ligament (ACL) autografts, specifically quadriceps tendon, patellar tendon, and hamstring tendon autografts, between 2008 and 2019.

Methods: Data were obtained by querying Google Trends for key terms and phrases for online search data ranging from January 2008 to December 2019. Relative search volumes were created based on searches related to ACL reconstruction with comparative analysis generated for search terms related to quadriceps ACL, patellar tendon ACL, and hamstring ACL autografts.

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Background: Patella baja is a known complication of total knee arthroplasty (TKA). There is a limited understanding of the association between patellar resurfacing and the incidence of patella baja. We aimed to compare rates of patella baja between unresurfaced and resurfaced patellas in patients undergoing TKA.

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Loss of shoulder function can be a complex condition to manage. Specifically, the definition between the terms pseudoparalysis and pseudoparesis remains inconsistent in the literature based on various factors including chronicity, present pathology, and the role of pain in the loss of function. There is also debate as to the optimal management strategies for these challenging conditions.

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Background: The WHO manual for basic semen analysis and ISO 23162 describe sperm morphology assessment as a standard part of semen analysis. Older studies showed a correlation between morphology results and (artificial) conception. In more recent studies this relationship was less apparent and there is more emphasis on sperm morphology as a marker for healthy spermatogenesis (and general male health).

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Background And Purpose: This study aims to assess time trends in case-mix and to evaluate the risk of revision and causes following primary THA, TKA, and UKA in private and public hospitals in the Netherlands.

Methods: We retrospectively analyzed 476,312 primary arthroplasties (public: n = 413,560 and private n = 62,752) implanted between 2014 and 2023 using Dutch Arthroplasty Register data. We explored patient demographics, procedure details, trends over time, and revisions per hospital type.

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Unlabelled: Laboratory diagnosis of orthohantavirus infection is primarily based on serology. However, for a confirmed serological diagnosis, evaluation of a follow-up serum sample is essential, which is time consuming and causes delay. Real-time reverse transcription polymerase chain reaction (RT-PCR) tests, if positive, provide an immediate and definitive diagnosis, and accurately identify the causative agent, where the discriminative nature of serology is suboptimal.

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 Patients often turn to online reviews as a source of information to inform their decisions regarding care. Existing literature has analyzed factors associated with positive online patient ratings among hand and wrist surgeons. However, there is limited in-depth analysis of factors associated with low patient satisfaction for hand and wrist surgeons.

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Background: Aseptic revisions are the most common reason for revision total knee arthroplasty (rTKA). Previous literature reports early periprosthetic joint infection (PJI) rates after aseptic rTKA to range from 3 to 9.4%.

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Background: Social determinants of health are implicated in the experience of knee osteoarthritis, a key component of which is access to care and healthcare utilization. The objective of this study was to describe difficulties in access to care and healthcare utilization in the United States knee osteoarthritis population.

Methods: The publicly available All of Us Database was utilized to conduct a retrospective cohort study.

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Background: The purpose of this study was to assess the relationship between risk and reimbursement for both surgeons and hospitals among Medicare patients undergoing primary total joint arthroplasty (TJA).

Methods: The "2021 Medicare Physician and Other Provider" and "2021 Medicare Inpatient Hospitals" files were used. Patient comorbidity profiles were collected, including the mean patient hierarchal condition category (HCC) risk score.

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