The latest medical research on Physiotherapist
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Request AccessSports-Related Concussion in Collegiate Athletes: The Potential Benefits of Using Graded Neuropsychological Tests With High Ceilings.
Journal of Head Trauma RehabilitationSports-related concussion management in collegiate athletes has been focused on return-to-play. However, resuming schoolwork without a gradual stepwise reintroduction contributes to symptom exacerbation, delayed recovery, and adverse academic performance. Return-to-learn guidelines are limited by a lack of sensitivity in methods monitoring cognitive function. This study evaluated 2 neuropsychological tests, the Sternberg test and the Paced Auditory Serial Addition Test (PASAT), with high ceilings for sensitivity to deficits in speed of information processing, cognitive efficiency, and complex attention.
The PASAT assesses complex attention. The Sternberg test examines processing speed and cognitive efficiency. Cognitive difficulty increases with progression through the tasks for both the PASAT and the Sternberg test. The mean outcome differences of the 3 groups (nonconcussed, acute, and chronic) across the 3 or 4 conditions (difficulty level) were measured with repeated-measures analysis of variance and subsequent pairwise comparison.
For processing speed (Sternberg reaction time), the acute group responded slower than the chronic group on the medium (P = .021, Bonferroni corrected) and hard difficulty tasks (P = .030, Bonferroni corrected). For cognitive efficiency (Sternberg reaction time variability), the acute group had increased reaction time variability compared with the chronic group on the medium difficulty task (P = .04, Bonferroni corrected). For complex attention (PASAT omissions), there was a difference between the acute and nonconcussed groups on the moderate-hard difficulty trial (P = .023, least significant difference [LSD] corrected) and between the acute and chronic groups for hard difficulty trial (P = .020, LSD corrected). The acute group performed worse, with progressively shorter interstimulus intervals.
Neuropsychological testing without ceiling effects can capture higher-level cognitive dysfunction and use of such tests can contribute to the understanding of how collegiate athletes are affected by SRC. Future studies can investigate optimal testing batteries that include neuropsychological testing with high ceilings and whether the pattern of performance has implications for the return-to-learn process after SRC in the college setting.
Presoaking Grafts in Vancomycin Does Not Impair Graft-Bone Healing in a Rat Anterior Cruciate Ligament Reconstruction Model.
Am J Sports MedThe vancomycin presoaking technique (wherein grafts are treated with a vancomycin solution [VS] for anterior cruciate ligament reconstruction [ACLR]) reduces the infection rate after ACLR. However, the effects of this technique on graft-bone healing have not been fully elucidated.
To investigate the effects of vancomycin presoaking on graft-bone healing in a rat ACLR model.
Controlled laboratory study.
Long flexor digitorum longus tendons were obtained from 9 Wistar rats, and each was randomly allocated to the normal saline (NS) or VS groups. The grafts were immersed in sterile saline for 30 minutes in the NS group and in a 5-mg/mL VS in the VS group. The presence of time-zero graft bacterial contamination was confirmed, and the grafts were incubated in Fluidised Thioglycollate Broth for 2 weeks. ACLR was performed on the right knees of 65 male Wistar rats using the flexor digitorum longus tendons. Each graft was similarly treated. Biomechanical testing, micro-computed tomography, and histological evaluations were performed 4 and 12 weeks postoperatively.
The VS group showed significantly reduced graft contamination at time zero (P = .02). The mean maximum loads to failure were 13.7 ± 8.2 N and 11.6 ± 4.8 N in the NS and VS groups, respectively, at 4 weeks (P = .95); and 23.2 ± 13.2 N and 30.4 ± 18.0 N in the NS and VS groups, respectively, at 12 weeks (P = .35). Regarding micro-computed tomography, the mean bone tunnel volumes were 3.76 ± 0.48 mm3 and 4.40 ± 0.58 mm3 in the NS and VS groups, respectively, at 4 weeks (P = .41); and 3.51 ± 0.38 mm3 and 3.67 ± 0.35 mm3 in the NS and VS groups, respectively, at 12 weeks (P = .54). Histological semiquantitative examination revealed no clear between-group differences at any time point.
Presoaking grafts in vancomycin in a rat ACLR model demonstrated no discernible adverse effects on short- and midterm biomechanical, radiological, and histological investigations.
The findings provide guidance for surgeons when considering this technique.
Achilles tendon assessment on quantitative MRI: Sources of variability and relationships to tendinopathy.
Scandinavian J Med Sci SportsQuantitative MRI (qMRI) measures are useful in assessing musculoskeletal tissues, but application to tendon has been limited. The purposes of this ...
Early functional factors for predicting outcome of independence in daily living after stroke: a decision tree analysis.
Journal of Rehabilitation MedicineThis study aimed to investigate the predictive functional factors influencing the acquisition of basic activities of daily living performance abilities during the early stages of stroke rehabilitation using classification and regression analysis trees.
The clinical data of 289 stroke patients who underwent rehabilitation during hospitalization (164 males; mean age: 62.2 ± 13.9 years) were retrospectively collected and analysed. The follow-up period between admission and discharge was approximately 6 weeks. Medical records, including demographic characteristics and various functional assessments with item scores, were extracted. The modified Barthel Index on discharge served as the target outcome for analysis. A "good outcome" was defined as a modified Barthel Index score ≥ 75 on discharge, while a modified Barthel Index score < 75 was classified as a "poor outcome."
Two classification and regression analysis tree models were developed. The first model, predicting activities of daily living outcomes based on early motor functions, achieved an accuracy of 92.4%. Among patients with a "good outcome", 70.9% exhibited (i) ≥ 4 points in the "sitting-to-standing" category in the motor assessment scale and (ii) 32 points on the Berg Balance Scale score. The second model, predicting activities of daily living outcome based on early cognitive functions, achieved an accuracy of 82.7%. Within the "poor outcome" group, 52.2% had (i) ≤ 21 points in the "visuomotor organization" category of Lowenstein Occupational Therapy Cognitive Assessment, (ii) ≤ 1 point in the "time orientation" category of the Mini Mental State Examination.
The ability to perform "sitting-to-standing" and visuomotor organization functions at the beginning of rehabilitation emerged as the most significant predictors for achieving successful basic activities of daily living on discharge after stroke.
Immediate effect of extracorporeal shockwave therapy in patients with chronic non-specific low back pain: A randomised placebo-controlled triple-blind trial.
Clinical RehabilitationTo compare the immediate effects of shockwave therapy using two different tips in patients with chronic non-specific low back pain.
The primary outcome was pain intensity immediately post-intervention. The secondary outcomes were pressure pain threshold, temporal summation of pain, and functional performance. Data were collected at baseline and post-intervention.
The post-intervention pain intensity in the concave tip group is an average of two points lower (95% CI = -3.6, -0.4; p < 0.01) than that in the placebo group. The post-intervention pressure pain threshold for the concave tip group was an average of 62.8 kPa higher (95% CI = 0.4, 125.1; p < 0.05) than for the convex tip group and 76.4 kPa higher (95% CI = 14, 138.7; p < 0.01) than in the placebo group.
The concave tip shockwave therapy is effective in reducing pain and local hyperalgesia in patients with chronic non-specific low back pain.
Prevalence and Correlates of VA-Purchased Community Care Use Among Post-9/11-Era Veterans With Traumatic Brain Injury.
Journal of Head Trauma RehabilitationPost-9/11-era veterans with traumatic brain injury (TBI) have greater health-related complexity than veterans overall, and may require coordinated care from TBI specialists such as those within the Department of Veterans Affairs (VA) healthcare system. With passage of the Choice and MISSION Acts, more veterans are using VA-purchased care delivered by community providers who may lack TBI training. We explored prevalence and correlates of VA-purchased care use among post-9/11 veterans with TBI.
Proportions of veterans who used VA-purchased care and both VA-purchased and VA-delivered outpatient care, overall and by study year. We employed multivariable logistic regression to assess associations between veterans' sociodemographic, military history, and clinical characteristics and their likelihood of using VA-purchased care from 2016 through 2019.
Overall, 51% of veterans with TBI used VA-purchased care during the study period. Nearly all who used VA-purchased care (99%) also used VA-delivered outpatient care. Veterans' sociodemographic, military, and clinical characteristics were associated with their likelihood of using VA-purchased care. Notably, in adjusted analyses, veterans with moderate/severe TBI (vs mild), those with higher health risk scores, and those diagnosed with posttraumatic stress disorder, depression, anxiety, substance use disorders, or pain-related conditions had increased odds of using VA-purchased care. Additionally, those flagged as high risk for suicide also had higher odds of VA-purchased care use.
Veterans with TBI with greater health-related complexity were more likely to use VA-purchased care than their less complex counterparts. The risks of potential care fragmentation across providers versus the benefits of increased access to care are unknown. Research is needed to examine health and functional outcomes among these veterans.
Associations Between Traumatic Brain Injury and Severity of Tinnitus-Related Functional Impairment Among US Military Veterans: A National, Population-Based Study.
Journal of Head Trauma RehabilitationTo describe associations between a history of traumatic brain injury (TBI) and the severity of tinnitus-related functional impairment among a national, stratified random sample of veterans diagnosed with tinnitus by the Department of Veterans Affairs (VA) healthcare system.
TBI history was assessed using International Classification of Diseases (ICD) diagnosis codes in veterans' VA electronic health records. The severity of participants' overall tinnitus-related functional impairment was measured using the Tinnitus Functional Index. Population prevalence and 95% confidence intervals (CIs) were estimated using inverse probability weights accounting for sample stratification and survey nonresponse. Veterans' relative risk ratios of very severe or moderate/severe tinnitus-related functional impairment, versus none/mild impairment, were estimated by TBI history using bivariable and multivariable multinomial logistic regression.
The population prevalence of TBI was 5.6% (95% CI: 4.8-6.4) among veterans diagnosed with tinnitus. Veterans with a TBI diagnosis, compared with those without a TBI diagnosis, had 3.6 times greater likelihood of rating their tinnitus-related impairment as very severe (95% CI: 2.1-6.3), and 1.5 times greater likelihood of rating their impairment as moderate/severe (95% CI: 1.0-2.4), versus none/mild.
These findings suggest an important role of TBI in the severity of tinnitus-related functional impairment among veterans. This knowledge can help inform the integration of tinnitus management services into the care received by veterans with TBI.
Associations of Nightmares and Sleep Disturbance With Neurobehavioral Symptoms Postconcussion.
Journal of Head Trauma RehabilitationThis study investigates the association of nightmares beyond general sleep disturbance on neurobehavioral symptoms in adults with mild traumatic brain injury (mTBI).
Behavioral Assessment Screening Tool, Pittsburgh Sleep Quality Index, and self-report of nightmare frequency in the past 2 weeks.
Among adults with mTBI, nightmares accounted for the greatest amount of variability in negative affect (β = .362, P < .001), anxiety (β = .332, P < .001), and impulsivity (β = .270, P < .001) after adjusting for age and sex. Overall sleep disturbance had the strongest association with depression (β = .493, P < .001), fatigue (β = .449, P < .001), self-reported executive dysfunction (β = .376, P < .001), and overall burden from concussive symptoms (β = .477, P < .001).
Nightmares and sleep disturbance are differentially associated with variance in neurobehavioral symptoms. Nightmares were independently associated with neurobehavioral symptoms representing an excess of normal functioning (eg, anxiety, impulsivity), while general sleep disturbance was associated with neurobehavioral symptoms representing functioning below normal levels (eg, depression, fatigue, self-reported executive dysfunction). Clinical and research implications are discussed.
The Use of Methylphenidate During Inpatient Rehabilitation After Pediatric Traumatic Brain Injury: Population Characteristics and Prescribing Patterns.
Journal of Head Trauma RehabilitationTo understand how methylphenidate (MPH) is used in youth with traumatic brain injury (TBI) during inpatient pediatric rehabilitation.
Patient demographic data, time to inpatient pediatric rehabilitation admission (TTA), cognitive state, MPH dosing (mg/kg/day).
Patients who received MPH were older (P = .011); TTA was significantly longer in patients who received MPH than those who did not (P =.002). The lowest recorded dose range by weight was 0.05 to 0.89 mg/kg/d, representing an 18-fold difference; the weight-based range for the maximum dose was 0.11 to 0.97 mg/kg/d, a 9-fold difference. Patients in lower cognitive states at admission (P = .001) and at discharge (P = .030) were more likely to receive MPH. Five patients had side effects known to be associated with MPH; no serious adverse events were reported.
This multicenter study indicates that there is variable use of MPH during acute inpatient rehabilitation for children with TBI. Children who receive MPH tend to be older with lower cognitive states. Dosing practices are likely consistent with underdosing. Clinical indications for MPH use during inpatient pediatric rehabilitation should be better defined. The use of MPH, as well as its combination with other medications and treatments, during inpatient rehabilitation needs to be further explored.
Applying the Common-Sense Self-Regulation Model to Understand Illness Representations of Mild Traumatic Brain Injury in College Students.
Journal of Head Trauma RehabilitationThe Common Sense Model (CSM) describes cognitive, emotional, and psychosocial factors that influence how health threats are processed and subsequently inform health-related decisions or actions. The purpose of this study was to examine psychosocial factors influencing coherence, or usefulness, of mild traumatic brain injury (mTBI) representations and their relationship to health-related decisions and actions.
Seven common injury mechanisms representative of university student mTBI experiences were presented as vignettes (cause). Each vignette included open- and closed-ended questions framed from CSM constructs (identity, consequences, action plans, timeline, and social context). Data were analyzed using a series of chi-square tests and multiple analysis of variance. Post hoc analysis identified differences in the injury vignettes.
Students were more likely to identify the injury as mTBI ( = 8.62, P = .035) and recommend immediate healthcare (F1,415 = 316.89, P < .001) for all causes if the injury occurred to a friend as compared with themselves. Action plans also varied by cause, with post hoc analysis revealing a higher likelihood of healthcare seeking for motor vehicle crashes and assault and a lower likelihood for falls while intoxicated. Students were generally more likely to talk to closest confidants than doctors (F8,398 = 33.66, P < .001).
Cause appears to be a key construct in generating illness representations and associated action plans for seeking care, with lower perceived severity causes (eg, falls) resulting in little to no health-seeking action. In addition, social support appears to be important for college students when making decisions about their health.
Neural Mechanisms Associated With Postural Control in Collegiate Soccer and Non-Soccer Athletes.
Journal of Neurologic Physical TherapySport-specific training may improve postural control, while repetitive head acceleration events (RHAEs) may compromise it. Understanding the neural mechanisms underlying postural control may contextualize changes due to training and RHAE. The goal of this study was to determine whether postural sway during the Balance Error Scoring System (BESS) is related to white matter organization (WMO) in collegiate athletes.
Collegiate soccer (N = 33) and non-soccer athletes (N = 44) completed BESS and diffusion tensor imaging. Postural sway during each BESS stance, fractional anisotropy (FA), and mean diffusivity (MD) were extracted for each participant. Partial least squares analyses determined group differences in postural sway and WMO and the relationship between postural sway and WMO in soccer and non-soccer athletes separately.
Soccer athletes displayed better performance during BESS 6, with lower FA and higher MD in the medial lemniscus (ML) and inferior cerebellar peduncle (ICP), compared to non-soccer athletes. In soccer athletes, lower sway during BESS 2, 5, and 6 was associated with higher FA and lower MD in the corticospinal tract, ML, and ICP. In non-soccer athletes, lower sway during BESS 2 and 4 was associated with higher FA and lower MD in the ML and ICP. BESS 1 was associated with higher FA, and BESS 3 was associated with lower MD in the same tracts in non-soccer athletes.
Soccer and non-soccer athletes showed unique relationships between sway and WMO, suggesting that sport-specific exposures are partly responsible for changes in neurological structure and accompanying postural control performance and should be considered when evaluating postural control after injury.Video Abstract available for more insights from the authors (see the Video, Supplemental Digital Content, available at: http://links.lww.com/JNPT/A472).
Postoperative Negative Pain Thoughts and Their Correlation With Patient-Reported Outcomes After Arthroscopic Rotator Cuff Repair: An Observational Cohort Study.
Am J Sports MedPain and pain perception are influenced by patients' thoughts. The short form Negative Pain Thoughts Questionnaire (NPTQ-SF) can be used to quantify unhelpful negative cognitive biases about pain, but the relationship between NPTQ-SF scores and orthopaedic surgery outcomes is not known.
The purpose was to assess the relationship between negative pain thoughts, as measured by the NPTQ-SF, and patient-reported outcomes in patients undergoing arthroscopic rotator cuff repair, as well as to compare NPTQ-SF scores and outcomes between patients with and without a history of chronic pain and psychiatric history. It was hypothesized that patients with worse negative pain thoughts would have worse patient-reported outcomes.
Cohort study; Level of evidence, 2.
In total, 109 patients undergoing arthroscopic rotator cuff repair were administered the 4-item NPTQ-SF, 12-item Short Form Health Survey (SF-12), American Shoulder and Elbow Surgeons (ASES) Shoulder Evaluation Form, and visual analog scale pain survey preoperatively between July 2021 and August 2022. The same surveys were completed ≥6 months postoperatively by 74 patients confirmed to have undergone arthroscopic rotator cuff repair.
Preoperative NPTQ-SF scores did not show any correlation with the postoperative patient-reported outcomes measured in this study. Postoperative NPTQ-SF scores were statistically significantly negatively correlated with postoperative SF-12 Physical Health Score, SF-12 Mental Health Score, ASES, and satisfaction scores (P < .05). Postoperative NPTQ-SF scores were statistically significantly positively correlated with postoperative visual analog scale scores (P < .001). Moreover, postoperative NPTQ-SF scores were statistically significantly negatively correlated with achieving a Patient Acceptable Symptom State and the minimal clinically important difference on the postoperative ASES form (P < .001 and P = .009, respectively).
Postoperative patient thought patterns and their perception of pain are correlated with postoperative outcomes after rotator cuff repair. This correlation suggests a role for counseling and expectation management in the postoperative setting. Conversely, preoperative thought patterns regarding pain, as measured by the NPTQ-SF, do not correlate with postoperative patient-reported outcome measures. Therefore, the NPTQ-SF should not be used as a preoperative tool to aid the prediction of outcomes after rotator cuff repair.
