Clinical Journal of Sport Medicine最新文献

{"title":"Chronic Groin Pain in Female Cyclists: Consider Pudendal Neuroma as a Possible Cause.","authors":"Petros Akin-Nibosun, Richard Seah, Ellis Downes, Kannan Rajesparan","doi":"10.1097/JSM.0000000000001437","DOIUrl":"10.1097/JSM.0000000000001437","url":null,"abstract":"<p><strong>Abstract: </strong>A 58-year-old female cyclist is experiencing chronic right groin pain, adversely affecting her quality of life and athletic performance. Despite undergoing comprehensive diagnostic evaluations, including pelvic MRI and specialized physical examinations, the primary findings were chondrolabral separation and ischiofemoral impingement. Notably, a pudendal neuroma was identified through ultrasound imaging. The patient received ultrasound-guided corticosteroid injections (Depomedrone 20 mg) and local anesthetic (0.25% bupivacaine 1 mL, with 1% lidocaine for skin and subcutaneous tissues), substantially alleviating symptoms and enhancing functional capacity. This case contributes to the limited literature on pudendal neuroma and highlights an avenue for potential nonsurgical percutaneous image-guided intervention for diagnostic and therapeutic purposes.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":"619-620"},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147580279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Range of Motion of the Lower Limb and Its Relationship With the Onset of Posterior Muscle Discomfort in Competitive Swimmers.","authors":"Cristina Jiménez-Braganza, Antonia Sáez-Díaz, Pedro V Munuera-Martinez","doi":"10.1097/JSM.0000000000001455","DOIUrl":"10.1097/JSM.0000000000001455","url":null,"abstract":"<p><strong>Objectives: </strong>To analyze the relationship between the joint characteristics of the lower limb and the onset of posterior muscle discomfort in competitive swimmers.</p><p><strong>Desing: </strong>Cross-sectional observational study.</p><p><strong>Setting: </strong>This is a private practice studio.</p><p><strong>Participants: </strong>A total of 157 competitive swimmers (86 men and 71 women) were included: 35 in the infant category (14-15 years), 38 in the junior category (16-20 years), 36 in the absolute category (older than 21 years), and 48 in the master category (older than 25 years).</p><p><strong>Assessment of risk factors: </strong>Range of motion (ROM) of the lumbar region, hip (flexion, extension, rotation), knee (flexion and extension), and ankle dorsiflexion (with knee flexed and extended) were measured. Flexibility was assessed using the Seat and Reach Test and the Straight Leg Raise Test. Discomfort in the posterior muscle chain was self-reported and classified by anatomical region (lumbar, hamstrings, gastrocnemius, plantar muscles).</p><p><strong>Main outcome measures: </strong>Joint ROM values and self-reported posterior muscle discomfort.</p><p><strong>Results: </strong>Women showed greater ROM in most joints, except hip extension. Freestyle swimmers reported the highest rates of posterior discomfort, particularly in the gastrocnemius. Swimmers in the absolute and master categories experienced more gastrocnemius and plantar muscle discomfort, while younger swimmers reported fewer issues. Reduced lumbar and hamstring flexibility was associated with increased discomfort in those areas. Swimmers with gastrocnemius and plantar discomfort had significantly lower ankle dorsiflexion.</p><p><strong>Conclusions: </strong>Competitive swimmers who reported posterior muscle discomfort during swimming showed poorer flexibility in the hamstrings and gastrocnemius, along with reduced ankle dorsiflexion, compared with those without discomfort. These findings may help guide injury prevention strategies and training planning.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":"582-589"},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147627244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Platelet-Poor Plasma: A Novel Treatment for Acute Quadriceps Muscle Injuries.","authors":"Ryan C Kruse, Kyle J Biscoglia, Krit Petrachaianan","doi":"10.1097/JSM.0000000000001460","DOIUrl":"10.1097/JSM.0000000000001460","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the efficacy of platelet-poor plasma (PPP) for the treatment of acute quadriceps muscle strains.</p><p><strong>Design: </strong>Cohort study.</p><p><strong>Setting: </strong>Outpatient Sports Medicine Clinic.</p><p><strong>Participants: </strong>Consecutive patients from January 2021 to January 2023 with an acute quadriceps muscle injury were included.</p><p><strong>Interventions: </strong>Quadriceps muscle strain PPP injection.</p><p><strong>Main outcome measures: </strong>Number of days until return to full unrestricted participation in sport.</p><p><strong>Results: </strong>Thirty-seven consecutive patients were included. Twelve (32%) of patients were female. The rectus femoris muscle was most commonly involved (73%), followed by the vastus medialis (21.6%). In total, 48.7% of injuries were modified British Athletics Muscle Injury Classification grade 3b. On average, patients returned to full activity 30 days (±15) postinjury when including all injury grades. One recurrent quadriceps muscle injury was seen within 12 months postinjury.</p><p><strong>Conclusions: </strong>Platelet-poor plasma may be considered an effective treatment for acute quadriceps muscle injuries with a low injury recurrence rate, and may expedite time until return to activity.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":"531-536"},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147764584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical Utility of the Sports Mental Health Assessment Tool in NCAA Collegiate Athletes.","authors":"Vicki R Nelson, Christina Gutta, Raphaela Fontana, Bailey Nevels, Wesley Averill, Ruth Amaku, James Anderson","doi":"10.1097/JSM.0000000000001411","DOIUrl":"10.1097/JSM.0000000000001411","url":null,"abstract":"<p><strong>Objectives: </strong>This study evaluates the performance of the International Olympic Committee's Sports Mental Health Assessment Tool-1 (SMHAT-1) in a collegiate athlete population. The SMHAT-1 was introduced by the International Olympic Committee in 2021 as a mental health screening tool in elite athletes. Recent studies have shown high false-negative rates in elite athletes but the tool has not been previously evaluated in a population of collegiate athletes.</p><p><strong>Design: </strong>Cohort study.</p><p><strong>Setting: </strong>National Collegiate Athletic Association (NCAA) collegiate athletic institutions.</p><p><strong>Participants: </strong>1.631 collegiate athletes (NCAA division 1 and 2).</p><p><strong>Intervention: </strong>Athletes underwent mental health screening including the triage and follow-up Form 2 components of SMHAT-1 during preparticipation evaluation.</p><p><strong>Main outcome measure: </strong>Sensitivity and specificity of Athlete Psychological Strain Questionnaire (APSQ) triage for detection of positive Form 2 screening.</p><p><strong>Results: </strong>9.7% of athletes were positive in the AQSP triage phase, while 41.8% were positive on at least 1 Form 2 instrument. The APSQ had a 19% sensitivity and 97% specificity for follow-up screening. 81% of athletes with a positive follow-up screen were missed during triage.</p><p><strong>Conclusions: </strong>Sequential screening using SMHAT-1 ASPQ and Form 2 steps results in a high false-negative rate. APSQ showed low sensitivity for positive Form 2 follow-up screening. The false-negative rate of 81% is concerning as a triage step for the detection of mental health concerns in collegiate athletes. We do not recommend the use of SMHAT-1 for mental health screening in collegiate athletes without modification.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":"537-540"},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145899340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence of Social Determinants of Health Concerns for Collegiate Student-Athletes: A Review of Annual Preparticipation Physical Examination Screening Data.","authors":"Zoë J Foster, Zachary K Winkelmann","doi":"10.1097/JSM.0000000000001405","DOIUrl":"10.1097/JSM.0000000000001405","url":null,"abstract":"<p><strong>Objectives: </strong>Social determinants of health (SDOH) are a major driver of health care outcomes in the United States. This study sought to assess the prevalence of SDOH in varsity collegiate student-athletes as this has not been an area of study in the sports medicine literature.</p><p><strong>Design: </strong>This cross-sectional cohort study included varsity student-athletes presenting for a preparticipation physical examination (PPE) for the 2024-2025 academic year.</p><p><strong>Setting: </strong>This study was conducted within the athletic department at an NCAA Division I University.</p><p><strong>Patients: </strong>All incoming and returning varsity student-athletes (n = 673) completing an annual PPE were included in the study.</p><p><strong>Interventions: </strong>Student-athletes were asked to answer 8 SDOH questions on the PPE form.</p><p><strong>Main outcome measures: </strong>Data were analyzed for the entire student-athlete group, by sex, and by self-reported academic year.</p><p><strong>Results: </strong>Approximately 7.5% of student-athletes in this study reported at least 1 SDOH concern. Food insecurity and social isolation were the most frequently reported issues. Upper-year students were more likely to have SDOH concerns when compared with first-year or graduate students.</p><p><strong>Conclusions: </strong>The SDOH are a concern for varsity student-athletes even at a well-resourced NCAA Division I university. Athletic departments can leverage this information as they work to support the health and well-being of their student-athletes. Attention to SDOH can not only affect the health of a student-athlete but also their performance on the field of play.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":"554-560"},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145909979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining Symptoms, Clinical, and Radiographic Signs of Femoroacetabular Impingement Syndrome in Youth Ice Hockey and Ringette Athletes, Part 2: A Cross-Sectional Study.","authors":"Maitland Martin, Garrett S Bullock, Jean-Michel Galarneau, Geoff Schneider, Carolyn A Emery, Nicholas G Mohtadi","doi":"10.1097/JSM.0000000000001448","DOIUrl":"10.1097/JSM.0000000000001448","url":null,"abstract":"<p><strong>Objectives: </strong>(1) To radiographically examine morphologies consistent with femoroacetabular impingement (FAI) syndrome in youth ice hockey and ringette athletes aged 14 to 24 years; (2) to examine FAI syndrome diagnosis because it relates to positive findings on special tests.</p><p><strong>Design: </strong>Cross-sectional.</p><p><strong>Setting: </strong>University, Sport Medicine Center.</p><p><strong>Participants: </strong>Male and female ice hockey/ringette athletes at 14 to 24 years with no history of traumatic hip/pelvic injuries/surgeries.</p><p><strong>Interventions: </strong>Examination of a novel screening protocol, using a cluster of tests, for FAI syndrome.</p><p><strong>Main outcome measures: </strong>Clinical hip findings (hip passive range of motion [p-ROM]; hip muscle strength testing; hip impingement special tests [ST]), radiographic evidence of FAI syndrome (α angle; lateral center edge angle [LCEA]; crossover sign).</p><p><strong>Results: </strong>A convenience sample of 28 males and 30 females consented from a larger cohort to undergo radiographs. FAI syndrome was present in 61% of males and 67% of females. Males demonstrated higher odds of cam morphologies unilaterally relative to females (OR = 4.29, 95% CI, 1.52-12.23), and based on point estimates, females displayed higher odds of pincer morphologies, both unilaterally (OR = 2.68, 95% CI, 0.95-7.73) and bilaterally (OR = 2.41, 95% CI, 0.73-8.12). Males displayed higher α angle than females (b 2 = 6.05, 95% CI, -9.75 to -2.34). No other covariates were associated with α angle/LCEA. With each additional positive ST, the odds of having evidence of FAI syndrome increased 3-fold (OR = 3.34, 95% CI, 1.91-5.83).</p><p><strong>Conclusions: </strong>Youth male and female ice hockey and ringette athletes display similar prevalence of FAI syndrome; however, specific morphologies differ by sex. This study provides evidence that a cluster of tests may increase the certainty with which suspected FAI syndrome can be assessed through screening.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":"605-615"},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the Prevalence of Signs and Symptoms Associated With Hip-Related Groin Pain in Youth Ice Hockey and Ringette, Part 1: A Reliability and Cross-Sectional Study.","authors":"Maitland Martin, Clara Soligon, Jean-Michel Galarneau, Garrett S Bullock, Nicholas G Mohtadi, Geoff Schneider, Carolyn A Emery","doi":"10.1097/JSM.0000000000001438","DOIUrl":"10.1097/JSM.0000000000001438","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to investigate the prevalence of hip-related groin pain (HRGP), and femoroacetabular impingement (FAI) syndrome-related signs and symptoms, in ice hockey and ringette athletes, considering important covariables (eg, age, sex).</p><p><strong>Design: </strong>Intra and interrater reliability and cross-sectional.</p><p><strong>Setting: </strong>University, Sport Medicine Centre.</p><p><strong>Participants: </strong>Male and female ice hockey/ringette athletes at 14 to 24 without a history of traumatic hip/pelvic injuries/surgeries.</p><p><strong>Interventions: </strong>Novel screening for the assessment of HRGP and signs and symptoms associated with FAI syndrome.</p><p><strong>Main outcome measures: </strong>HGRP-focused hip history questionnaire, International Hip Outcome tool, clinical hip screen (hip passive range of motion (ROM), p-ROM; hip muscle strength testing; hip impingement special tests).</p><p><strong>Results: </strong>HRGP was reported by 61% of participants [105/166 (63%) male, 60/104 (57%) female]. Men with HRGP had reduced ROM in flexion (with = 124 degrees, 95% CI, 122-125 degrees; without = 126 degrees, 95% CI, 124-127 degrees, t = 1.81, P = 0.04), adduction (with = 26 degrees, 95% CI, 25-27 degrees; without = 28 degrees, 95% CI, 27-29 degrees; t = 0.21, P = 0.01), and internal rotation (with = 31 degrees, 95% CI, 30-33 degrees; without = 34 degrees, 95% CI, 33-35 degrees; t = 2.86, P = 0.002) compared with male without HRGP. Both male and female with HRGP reported up to 5-fold increased odds of positive findings on impingement tests compared with those without HRGP [flexion-adduction-internal rotation (FADIR): male, odds ratio (OR = 2.84, 95% CI, 1.73-4.69; female OR = 5.37, 95% CI, 2.21-14.87)]. When modelled and fit with other covariates, FADIR (OR = 0.76, 95% CI, 0.51-1.12) and maximal squat distance (OR = 1.69, 95% CI, 1.30-3.60) increased odds of having HRGP. International Hip Outcome scores (OR = 0.96, 95% CI, 0.95-0.98) displayed an inverse relationship with HRGP.</p><p><strong>Conclusion: </strong>Findings from this study provide evidence to support the use of hip screening in athletes at risk of FAI syndrome. Challenges to the assessment of the hip joint continue to limit the reliability of screening tools.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":"595-604"},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147632622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Association Between Central Nervous System Function and Core Body Temperature in Patients With Exertional Heat Stroke.","authors":"Susan W Yeargin, Samantha E Scarneo-Miller, John Jardine, Chris Troyanos, Rebecca Lopez","doi":"10.1097/JSM.0000000000001383","DOIUrl":"10.1097/JSM.0000000000001383","url":null,"abstract":"<p><strong>Objective: </strong>Describe central nervous system (CNS) function using the Glasgow Coma Scale (GCS) and a description of signs and symptoms in patients with exertional heat stroke (EHS) during the course of treatment at a warm-weather road race. Determine whether a relationship exists between rectal temperature (T re ) and the GCS in patients with EHS during treatment.</p><p><strong>Design: </strong>Cross-sectional research design retrospectively using medical charts.</p><p><strong>Setting: </strong>Eleven-kilometer road race medical tent.</p><p><strong>Patients: </strong>Patients (n = 25) with EHS receiving treatment.</p><p><strong>Interventions: </strong>Dedicated scribes recorded patient vitals on a medical chart. The deidentified medical charts were provided by the medical director after the race. A Spearman rank correlation was used to determine whether a relationship existed between Tre and GCS (subscales and cumulative).</p><p><strong>Main outcome measures: </strong>Rectal temperature was measured using an in-dwelling flexible probe with temperatures recorded approximately every 3 minutes. GCS was recorded by subscales on the medical chart by scribes according to existing word anchors.</p><p><strong>Results: </strong>Average initial T re was 41.0 ± 0.6°C (105.8 ± 1.1°F) and cumulative GCS score was 14 ± 3 (4-15). No single CNS dysfunction predominated across most observations. Confusion had the highest recorded percentage (19.8%). There was a significant but weak correlation between T re and GCS [r s (124) = -0.255, P = 0.004; Ρ 2 = 0.06]. For time points in which Tre was >40°C, there was no correlation between Tre and GCS [r s (60) = -0.209, P = 0.108; Ρ 2 = 0.04], and GCS subscales Eye [r s (60) = -0.230, P = 0.077; Ρ 2 = 0.05], Verbal [r s (60) = -0.183, P = 0.161; Ρ 2 = 0.03], and Motor [r s (60) = -0.214, P = 0.100; Ρ 2 = 0.05].</p><p><strong>Conclusions: </strong>Although GCS is a good global measure, it may not be appropriate in capturing how CNS dysfunction presents in patients with EHS. Clinicians should continue to use clinical CNS dysfunction and T re to initially recognize EHS, however, T re should be used to guide prehospital cooling of patients with EHS.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":"575-581"},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144706577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Role of Self-Reporting in the Evaluation and Diagnosis of Concussion Among National Football League Players.","authors":"Hayden K Giuliani-Dewig, Riju Shrestha, Erin B Wasserman, Christina D Mack, Gary Solomon, Douglas P Terry, Javier F Cárdenas, Allen Sills","doi":"10.1097/JSM.0000000000001476","DOIUrl":"https://doi.org/10.1097/JSM.0000000000001476","url":null,"abstract":"<p><strong>Objective: </strong>To determine the role of player self-report in concussion evaluation and diagnosis.</p><p><strong>Design: </strong>Retrospective; cross-sectional.</p><p><strong>Setting: </strong>National Football League (NFL).</p><p><strong>Participants: </strong>National Football League players between 2018 and 2023.</p><p><strong>Interventions: </strong>Unaffiliated Neurotrauma Consultant gameday reports; Electronic Medical Records; Game Statistics and Information System.</p><p><strong>Main outcome measures: </strong>Concussion evaluations and diagnoses; concussion evaluation trigger; player demographics and characteristics (eg, age, injury history).</p><p><strong>Results: </strong>From 2018 to 2023, player self-report occurred in 24% (preseason) and 30% (regular season) of all concussion evaluations and 32% (preseason) and 39% (regular season) of diagnosed concussions. The proportion of self-report was largest among individuals with 6 to 10 years of NFL experience, offensive and defensive linemen, and those with 2 or more previous concussions.</p><p><strong>Conclusions: </strong>This study found that NFL players self-report concussion-like symptoms to initiate evaluation approximately one-third of the time, which increased to almost 40% in concussed players. This may indicate enhanced improvement in player understanding of the injury and motivation to report to improve their symptoms, which is supported by the finding that players with more experience in the NFL and those with multiple previous concussions showed a higher percentage of triggering the evaluation by self-report. These findings help inform future educational efforts to promote timely reporting and improve postinjury recovery.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148863909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute Pseudogout Flare After Intra-Articular Platelet-Rich Plasma Injection: A Case Report.","authors":"Emily Andrews, Christopher Mulholland","doi":"10.1097/JSM.0000000000001468","DOIUrl":"https://doi.org/10.1097/JSM.0000000000001468","url":null,"abstract":"<p><strong>Abstract: </strong>Platelet-rich plasma (PRP) is increasingly used for the treatment of knee osteoarthritis (OA), especially in younger patients. Adverse effects are rare but can include synovitis and effusions. In this case, we present a 43-year-old woman with no history of calcium pyrophosphate deposition disease (CPPD) developed acute swelling and stiffness of the knee within 1 h after a leukocyte-poor PRP injection. Synovial fluid analysis revealed positively birefringent rhomboid-shaped crystals, confirming pseudogout. She was treated conservatively with NSAIDs and physical therapy, with complete symptom resolution in 2 weeks. This case highlights a rare complication of PRP injection, underscoring the importance of considering subclinical CPPD in patients with early onset OA. Pseudogout should be discussed as a potential, though uncommon, risk when counseling patients about PRP therapy.</p>","PeriodicalId":10355,"journal":{"name":"Clinical Journal of Sport Medicine","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148863893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}