Publications by authors named "Jordan Larson"
Background: Many studies have examined the prevalence of acetabular version (AV) and femoral version (FV) abnormalities and their effect on patient-reported outcomes (PROs) after hip arthroscopy for femoroacetabular impingement syndrome (FAIS), but few have explored the prevalence and influence of combined version (CV) abnormalities.
Purpose: To (1) describe the distribution of AV, FV, and CV in the largest cohort to date and (2) determine the relationship between AV, FV, and CV and PROs after hip arthroscopy for FAIS.
Study Design: Cohort study; Level of evidence, 3.
Importance: While there is a general consensus that functional connectome pathology is a key mechanism underlying psychosis spectrum disorders, the literature is plagued with inconsistencies and translation into clinical practice is non-existent. This is perhaps because group-level findings may not be accurate reflections of pathology at the individual patient level.
Objective: To characterize inter-individual heterogeneity in functional networks and investigate if normative values can be leveraged to identify biologically less heterogeneous subgroups of patients.
Article Synopsis
- The study aimed to assess how the COVID-19 pandemic affected the psychosocial functioning of individuals with cleft lip and/or palate (CL/P) aged 6 and older.
- Researchers surveyed 36 CL/P patients about their well-being before and during the pandemic, focusing on social-emotional aspects and satisfaction with facial appearance.
- Results showed significant improvements in well-being and satisfaction after the pandemic began, particularly when patients were wearing masks, although remote interactions appeared less favorable.
Purpose: To evaluate the effect of patient sex on 10-year patient-reported outcomes (PROs) and survivorship after hip arthroscopy (HA) for femoroacetabular impingement syndrome (FAIS).
Methods: Patients who underwent primary HA for FAIS with minimum 10-year follow-up from January 2012 to December 2013 were retrospectively reviewed. Female patients were propensity-matched to male patients in a 1:1 ratio by age and body mass index.
Article Synopsis
- - The study investigates long-term clinical outcomes of patients with borderline hip dysplasia (BHD) who underwent hip arthroscopy for femoroacetabular impingement syndrome (FAIS) compared to similar patients without BHD, focusing on outcomes measured 10 years post-surgery.
- - A total of 28 patients with BHD were matched with 84 control patients without BHD based on age, sex, and body mass index; both groups showed significant improvement in patient-reported outcomes (PROs) from preoperative assessments.
- - Although PRO scores improved similarly, patients with BHD had lower scores in the Sports subscale, indicating potential limitations in athletic performance post-surgery compared to controls; however, rates of achieving minimal
Article Synopsis
- The study aimed to determine if the outcomes of hip arthroscopy for femoroacetabular impingement syndrome (FAIS) at 6 months correlated with those at a minimum of 10 years post-operation.
- It involved reviewing 60 patients and assessing various outcome measures, indicating significant improvements in pain and satisfaction scores from 6 months to 10 years, while some activity scores did not show similar improvements.
- Findings revealed that early 6-month scores were predictive of long-term outcomes, including the likelihood of achieving acceptable symptom states and the need for further hip surgeries like total hip arthroplasty.
Article Synopsis
- The study compared outcomes of hip arthroscopy for femoroacetabular impingement syndrome in patients with lateral impingement versus those without lateral impingement over a 5-year follow-up period.
- Patients with lateral impingement had significantly larger alpha angles preoperatively but showed no significant difference in postoperative angles or patient-reported outcomes after surgery.
- Results indicated that while patients with lateral impingement had more severe cartilage damage and different patterns of labral tears, both groups had similar rates of reoperations and overall outcomes at the 5-year mark.
Article Synopsis
- Determining the right amount of femoral cam resection in hip arthroscopy for femoroacetabular impingement syndrome is crucial, as under-resection can lead to surgery failure while over-resection risks femoral neck fractures.
- The alpha angle is a key 2D measurement used to diagnose the condition beforehand and assess resection adequacy afterward, and advanced computer systems can improve surgical precision.
- Tools like the HipCheck software allow surgeons to track real-time measurements during surgery, providing templates for optimal resection depth and ensuring complete removal of the deformity.
Background: Both gluteal and labral tears are common sources of hip pain, but no studies have evaluated how concomitant arthroscopic labral repair and correction of femoroacetabular impingement syndrome (FAIS) affect outcomes after endoscopic gluteus/minimus repair.
Purpose: (1) To compare patient-reported outcomes (PROs) and clinically significant outcomes achievements between patients who underwent endoscopic gluteus medius/minimus and arthroscopic hip labral repair with correction of FAIS versus endoscopic gluteus medius/minimus repair without labral repair and (2) to define threshold scores required to achieve the minimal clinically important difference (MCID) and the Patient Acceptable Symptom State (PASS) for the Hip Outcome Score-Activities of Daily Living, Hip Outcome Score-Sports Specific, modified Harris Hip Score (mHHS), 12-item international Hip Outcome Tool, and visual analog scale for pain in these patients.
Study Design: Cohort study; Level of evidence, 3.
Article Synopsis
- This study aims to investigate the timing and risk factors for secondary surgeries following primary hip arthroscopy for femoroacetabular impingement syndrome (FAIS) over a minimum follow-up of 10 years.
- Researchers analyzed data from patients who underwent hip arthroscopy between January 2012 and February 2013, matching those who had secondary surgeries to those who did not, while controlling for factors like age and BMI.
- Results indicated that patients who needed reoperation had more severe cartilage damage and displayed a specific pattern regarding the timing of reoperations, while participants free from reoperations reported varying levels of functional improvement and pain relief.
Purpose: To compare clinical outcomes and rates of secondary surgery, including revision hip arthroscopy and conversion to total hip arthroplasty (THA), after primary hip arthroscopy for femoroacetabular impingement syndrome (FAIS) in patients ≥40 years of age at minimum 10-year follow-up compared with a propensity-matched control group of patients <40 years.
Methods: A retrospective cohort study was performed for patients who underwent primary hip arthroscopy for FAIS between January 2012 and February 2013. Patients ≥40 years old were propensity matched in a 1:1 ratio by sex and body mass index to patients <40 years old.
Article Synopsis
- Hip arthroscopy is commonly used to treat femoroacetabular impingement syndrome (FAIS), but its effectiveness varies based on preoperative osteoarthritis (OA) levels, and there's limited long-term comparative research on outcomes.
- This study specifically looks at patients with Tönnis grade 1 OA versus those with Tönnis grade 0 OA, focusing on the rates of secondary surgeries and patient satisfaction after at least 10 years post-surgery.
- Results indicate that patient-reported outcomes and surgery rates between the two groups were analyzed, revealing insights into the implications of OA on long-term recovery and surgical success.
Article Synopsis
- The study aimed to assess recovery in patients who underwent hip arthroscopy for femoroacetabular impingement syndrome (FAIS) by tracking gait metrics via a smartphone app, rHip, and determining when these metrics returned to pre-surgery levels.
- Fifty patients participated, and results showed significant improvements in step count, step length, and walking speed over the weeks following surgery, particularly after completing a standard rehabilitation protocol.
- Correlations between gait metrics and patient-reported outcomes indicated that while some weak correlations existed preoperatively, moderate correlations appeared at three months post-surgery, suggesting improved functional recovery related to walking activity.
Article Synopsis
- Surgical repair of proximal hamstring injuries helps alleviate pain and improves function for active individuals.
- New endoscopic techniques offer safer and more effective alternatives to traditional open surgery, possibly reducing complications.
- The article introduces a method to enhance suture security during endoscopic repair by using a running, locking stitch instead of traditional suturing methods.
Article Synopsis
- The treatment methods for hamstring avulsions are changing, especially for patients with ongoing symptoms from partial tears that don't improve with non-surgical options.
- Endoscopic hamstring repair offers surgeons better visibility of the injury site and safer dissection around the sciatic nerve.
- This article outlines a detailed procedure for performing the surgery to ensure a safe and effective repair of partial hamstring tears.
Article Synopsis
- Intraoperative fluoroscopy is commonly used by hip arthroscopists to check if cam resection is sufficient in patients with femoroacetabular impingement syndrome.
- Due to the limitations of fluoroscopy, there is a need for supplementary imaging techniques during surgery.
- The text introduces a method for using ultrasound to measure alpha angles while operating, helping to assess whether the cam resection is adequate.
Article Synopsis
- Limited research explores the impact of postoperative physical therapy (PT) on outcomes for patients with femoroacetabular impingement syndrome (FAIS) following hip arthroscopy, particularly concerning traditional patient-reported outcome measures (PROs).
- A study involving 95 patients evaluated how different durations of PT (0-3 months, 3-6 months, and 6-12 months) influenced recovery, using the Lower Extremity Functional Scale (LEFS) to measure progress and comparing this with other PROs.
- Results showed significant gains in LEFS scores over time, with the best outcomes linked to 3-6 months of PT, indicating a higher rate of improvement with more PT sessions and a gradual decrease in recovery
Article Synopsis
- There is limited information on the outcomes of endoscopic surgeries for labral repairs combined with repairs of the gluteus medius and/or minimus muscles, particularly in patients presenting with both issues.
- The study aims to compare the results of patients who had simultaneous gluteal and labral repairs against those who only had labral repairs, using matched cohorts.
- Results showed that there were no significant differences in sex, age, BMI, or patient-reported outcome scores before and after surgery between the two groups, indicating similar outcomes for both surgical approaches.
Purpose: To investigate mid-term patient-reported outcomes (PROs) and return-to-work for workers' compensation (WC) patients undergoing primary hip arthroscopy (HA) for femoroacetabular impingement syndrome (FAIS) versus propensity-matched, non-WC controls and to determine whether achievement rates of minimal clinically important difference (MCID) and patient-acceptable symptom state (PASS) differ between these populations.
Methods: A retrospective cohort study was conducted on WC patients who underwent primary HA for FAIS from 2012 to 2017. WC and non-WC patients were propensity matched on a 1:4 basis by sex, age, and body mass index (BMI).
: To explore differences before and during the COVID-19 pandemic in electronic media use (i.e. TV watching, social media use, screen time), health (i.
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- - The study focused on the presence and healing of significant bone gaps after posterior vault distraction osteogenesis (PVDO), assessing their size at different time points and their potential to relapse.
- - Researchers analyzed 7 out of 69 PVDO patients using CT scans to measure the bone gaps before and after a period of consolidation, finding a significant reduction in the size of these gaps over time.
- - Results indicated that while bone gaps decrease and re-ossification occurs at a faster rate in infants, there was no observed relapse in patients regardless of age.
Article Synopsis
- Shwachman-Diamond syndrome (SDS) is a rare inherited condition leading to bone marrow failure and an increased risk of leukemia, with a study analyzing 153 subjects to better understand age-related blood count changes.
- The study found that neutrophil and hemoglobin counts increased with age until 18, while platelet counts and marrow cellularity declined, indicating complex hematologic behaviors in SDS.
- Severe bone marrow failure requiring transplantation was common early in life, and 17% of subjects eventually developed myeloid malignancies, highlighting the need for careful monitoring of hematologic issues in SDS patients.
Article Synopsis
- Congenital midline nasal masses are usually benign, often related to nasal dermoid sinus cysts, but this study highlights the first known case of a rhabdomyosarcoma (RMS) presenting as a midline mass in the nose.
- Researchers reviewed existing literature to analyze the clinical presentation and treatment of nasal, nasopharyngeal, and paranasal RMSs, finding the paranasal sinuses to be the most commonly affected site.
- Although most midline nasal masses are benign, the study suggests the need for awareness of RMS in pediatric diagnoses and advocates for considering early surgical intervention to prevent metastasis.
Article Synopsis
- This study investigates the clinical characteristics and outcomes of patients with myelodysplastic syndrome or acute myeloid leukaemia who also have Shwachman-Diamond syndrome, a genetic disorder associated with a high risk of blood cancers.
- Conducted as a multicenter, retrospective cohort study, researchers reviewed medical records from 17 centers across the USA and Canada to gather data on eligible patients between 2001 and 2017.
- The findings reveal that out of 37 initially identified patients, 36 were included in the final analysis, with those presenting myelodysplastic syndrome having a median overall survival of 7.7 years, while those with acute myeloid leukaemia had much lower survival rates.