Thumb Pain Research Articles

Wrist and thumb pain after a traumatic injury.

Wrist and thumb pain after a traumatic injury.

Prevalence and sex differences in endoscopy-related injuries: comprehensive systematic review and meta-analysis

Background and AimsGastroenterologists are at risk for endoscopy-related injury (ERI). The aim of this meta-analysis was to assess the prevalence, characteristics, and burden of ERI. MethodsWe searched PubMed/Embase/Web of Science databases for studies reporting ERI prevalence among gastrointestinal (GI) endoscopists. The primary outcome was to pool ERI prevalence. We also assessed ERI types and treatments. We compared ERI based on gender. Finally, we compared musculoskeletal injury (MSI) prevalence between GI endoscopists and non-endoscopists. The pooled rates were generated using a proportion meta-analysis with the random-effects model. Prevalence ratios (PR) with the corresponding confidence intervals (CI) were used for comparative data. ResultsWe included 26 studies with 6,246 endoscopists. Overall, ERI prevalence was 67.9% (60.7-74.4). ERI prevalence was 77.8% (55.1-90.9) in advanced endoscopists. A higher trend of ERI prevalence was observed in recent studies (after 2015), 71.7% (63.3-78.9). Neck pain (36.7%) was the most common ERI, followed by low back pain (35.6%) and thumb pain (33.1%). While females reported higher De Quervain tenosynovitis and carpal tunnel syndrome, wrist, thumb, shoulder, and neck pain, males reported higher elbow pain. GI endoscopists had a higher MSI prevalence than non-endoscopists, PR 1.56 (1.01-2.41). Female endoscopists reported higher ERI, PR 1.21 (1.10-1.32). Only 19.1% of endoscopists reported receiving prior ergonomic training. ConclusionsERI is increasingly prevalent in gastroenterology, particularly in female gastroenterologists with significant gender disparities in ERI types noted. These findings underscore the significance of incorporating ergonomic principles into gastroenterology practices to mitigate ERI risks, particularly considering the shortage of gastroenterologists.

Prevalence of Work-Related Thumb Pain among Clinical Physical Therapists of Rawalpindi & Islamabad

Background: Work-related musculoskeletal disorders (WRMSDs) are prevalent among healthcare professionals, significantly affecting physical therapists due to their hands-on treatment techniques. These disorders, particularly involving the thumb, result from repetitive stress and poor ergonomics, leading to chronic pain and functional impairment. Despite extensive research on WRMSDs in other body regions, the specific prevalence of thumb pain among physical therapists in Pakistan remains underexplored. This study aims to investigate the prevalence and contributing factors of work-related thumb pain among clinical physical therapists in Rawalpindi and Islamabad, addressing a critical gap in the current understanding of occupational health challenges faced by these professionals. Objective: The study was conducted to find out prevalence of work-related thumb pain among clinical physiotherapists of Rawalpindi & Islamabad. Methods: A descriptive cross-sectional study was conducted from September 2022 to February 2023 in Rawalpindi and Islamabad. Data was collected from 270 physiotherapists using self-structured questionnaire. Sample size was calculated using Slovin’s formula with confidence interval 95% and keeping margin of error 0.05%. Non-probability convenient sampling technique was used for collection of data. Data was analyzed by using SPSS version 26. Results: Out of 270 participants, 130 complained of thumb pain whereas 140 had no pain. The overall mean age of sample was 28.15±5.39. Among males 52(43.3%) had thumb pain and 68(56.7%) had no thumb pain. Females 78(52.0%) had thumb pain and 72(48.0%) had no thumb pain. 218(80.7%) participants were working from 1-5 years, 62(23%) worked for less than 15 hours per week, 84(31.1%) worked for 5 hours per day, 108(40%) treated up to 5 patients per day. Moderate intensity pain was present in 82(30.4%) participants. Mostly 67(24.8) were affected with MP joint pain site. Conclusion: Thumb pain was prevalent among clinical physiotherapists. Females were having more thumb pain as compared to male participants. The intensity of pain prevalent was moderate on NPRS. This thumb pain is due to their professional techniques including manual therapy, ischemic pressure release and massage. Most of the participants reported thumb pain due to mobilization and manipulation techniques.

Prevalence of endoscopy-related injuries and their impact on clinical practice: a systematic review and meta-analysis.

Endoscopy-related musculoskeletal injuries (ERIs) are commonly reported but their exact prevalence and clinical impact remain obscure. We conducted a systematic review and meta-analysis of the current literature aiming to answer these questions. The MEDLINE, EMBASE, and SCOPUS databases were searched for studies evaluating ERIs in gastroenterologists and surgeons. The co-primary outcome was the prevalence of ERIs (i.e. carpal tunnel syndrome, de Quervain's tenosynovitis, and hand numbness). The second co-primary outcome was the prevalence of endoscopy-related pain syndromes. 12 studies, including 4563 respondents, were included. The majority of respondents were men (n = 3321; 72.8%) and most were right-handed (86.2%). The career prevalence of carpal tunnel syndrome (pooled from 10 studies) was 5.3% (95%CI 1.5%-8.9%; I 2 = 97.1%), while the prevalence of de Quervain's tenosynovitis (five studies) was 8.5% (95%CI 0.1%-17.0%). The pooled prevalences of thumb pain, neck pain, and back pain were 25.4%, 23.1%, and 19.7%, respectively, but the prevalence varied according to the type of questionnaire used. Only 341/864 respondents (39.5%) had received prior training in ergonomics, while 623/889 respondents (70.1%) expressed a desire for further training in ergonomics. Overall, there is a moderate risk of bias in the present literature. ERIs, including carpal tunnel syndrome, de Quervain's tenosynovitis, and endoscopy-related pain, are very common. These injuries can be severe, requiring surgery, and lead to loss of productivity. Most gastroenterologists report an unmet need for training in the proper ergonomics of endoscopy.

Effectiveness of Tailor-Made Physiotherapy Protocol in Smartphone-Addicted Individuals With Text Neck Syndrome and Short Message Service (SMS) Thumb.

Background Smartphone usage has led to an increase in text neck syndrome (TNS) and short message service (SMS) thumb, causing neck, shoulder, and thumb pain, affecting daily activities. Limited treatment options are available for these conditions, and early intervention is crucial to prevent chronic pain and musculoskeletal issues.This study sought to determine the impact of a personalized physiotherapy treatment plan on alleviating TNS and SMS thumb in individuals who demonstrate excessive smartphone usage. Method The study utilized a single-group, pre- and post-study design with a sample size of 54 smartphone-addicted individuals. The intervention involved a personalized physiotherapy protocol for three weeks, and data was collected using a visual analog scale (VAS), Neck Disability Index (NDI), Smartphone Addiction Scale (SAS), Cornell Hand Discomfort Questionnaire (CHDQ), and range of motion (ROM). Results Descriptive statistics showed a significant reduction in mean scores from pre- to post-rehabilitation, indicating the potential effectiveness of the treatment. Hypothesis testing revealed significant improvements in VAS, NDI, and CHDQ scores post-rehabilitation, with a p-value of <0.05. Correlation analysis demonstrated moderate to strong correlations between pre- and post-rehabilitation scores for VAS, NDI, and CHDQ, with age showing minimal influence on treatment outcomes. Conclusion The findings emphasize the efficacy of personalized interventions in addressing smartphone-related musculoskeletal disorders and underscore the need for further research to optimize treatment protocols and long-term outcomes.

Predicting Contralateral Surgery for Trapeziometacarpal Arthrosis Within 5 Years

Symptomatic trapeziometacarpal (TMC) joint arthritis is a common cause of hand pain. It is unknown how many patients ultimately elect to have bilateral surgery for TMC arthritis. In this study, we assessed the frequency and predictive factors for contralateral TMC surgery in patients who underwent prior TMC surgery. We identified 712 patients who underwent primary surgery for TMC arthritis with a follow-up period of 5 years. We collected demographic, surgical, and follow-up data. Prediction models for contralateral surgery using a training and testing data set were created with multivariable logistic regression and random forest classifier algorithms. At the time of initial surgery, 230 patients had bilateral thumb pain (32%), but only 153 patients ultimately had an operation for TMC arthritis on the contralateral side within 5 years (21% of 712 total patients and 67% of 230 patients with bilateral pain). Common predictive factors between both models for contralateral surgery were younger age (odds ratio [OR]= 0.95; 95% confidence interval [CI], 0.93-0.98), bilateral thumb pain (OR= 3.76; 95% CI, 2.52-5.65), and anxiety disorders (OR= 1.84; 95% CI, 1.11-3.03). In our study, we found that the rate of contralateral surgery was 21% in patients who underwent prior TMC surgery. Predictive factors for future contralateral surgery included younger age, bilateral thumb pain, and anxiety disorder at the time of initial surgery. Prognostic II.

Arthroscopy-Assisted Surgery for Trapeziometacarpal Osteoarthritis.

Background: Functional outcomes of patients who underwent arthroscopy-assisted surgery for trapeziometacarpal osteoarthritis were reported. Methods: We included 24 consecutive patients (6 males and 18 females) who underwent surgery and postoperative hand therapy at our hospital between April 2012 and March 2018. For functional evaluation, we used the Purdue Pegboard Test (PPT), grip and pinch strength, range of motion of the thumb, visual analogue scale (VAS) for thumb pain, Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) and Japanese version of the Patient-Rated Wrist Evaluation (PRWE-J) preoperatively and 3 months postoperatively. Results: The mean PPT rating improved from 12.3 to 13.3, the VAS score from 51 to 16, the QuickDASH score from 48 to 30 and the PRWE-J score from 55 to 29. All the improvements were statistically significant. There was a moderate positive correlation between the magnitude of improvement in PPT and QuickDASH scores. Conclusions: Arthroscopic intervention and associated hand therapy were effective in achieving early postoperative relief of thumb pain and in improving hand dexterity and activities of daily living. Level of Evidence: Level IV (Therapeutic).

Prevalence of Thumb Pain in Practicing Physiotherapists

Prevalence of Thumb Pain in Practicing Physiotherapists

Correlation of Handgrip Strength with Thumb Flexibility, Strength and Pain in Manual Therapists

Objective: To find the correlation bwteen hand grip strength with thumb muscle strength, flexibility and thumb pain in manual therapists and to find out the variation of these variables in healthy manual therapists. Study Design: Comparative cross-sectional Study. Place and Duration of Study: Pakistan Society of Rehabilitation and Disability, Jinnah Hospital, Ittefaq Hospital, and Riphah University Pakistan, from Nov 2021 to Jan 2022. Methodology: One hundred thirty-five manual therapists were enrolled. Informed consent was taken from participants meeting inclusion and exclusion criteria. The questionnaire was filled out using a Dynamometer for Handgrip strength check, a Manual Muscle testing technique for Thumb muscle strength check, a Numeric pain rating scale for Pain intensity, and Goniometry for Flexibility of the Thumb muscles. Results: Results showed that most manual therapists had no wrist pain (99,73.3%) or thumb pain (104,77%). The majority of therapists (116 ,85.9%), had less than normal grip strength of hand, and 58(43%) had maximum thumb strength. There was a positive correlation between grip strength and thumb strength (r=0.234). There was a negative correlation between grip strength and thumb pain (r=-0.077). Conclusion: The study concluded that most manual therapists did not suffer from wrist and thumb pain. The majority had good thumb muscle strength but poor hand grip strength. Thumb strength positively correlates with grip strength, while thumb pain negatively correlates with handgrip strength.

Physiotherapeutic approach to De Quervain's Stenosing Tenosynovitis caused by excessive smartphone use in adults

De Quervain's Stenosing Tenosynovitis (DQST) is a musculoskeletal disorder that has increased in incidence due to the excessive and sometimes inappropriate use of smartphones. The aim of this study was to analyse the role of physiotherapy in the treatment of adult patients affected by DQST caused by excessive smartphone use. This is a narrative literature review, in which experimental articles were selected from the SciELO, PubMed, PEDro, LILACS and BVS databases, published between 2018 and 2022, in Portuguese and English. The descriptors used were De Quervain's Stenosing Tenosynovitis; smartphone; trigger finger; physiotherapy; and thumb pain. The study found 9 experimental articles that showed promising results with physiotherapeutic treatment of DQST in relieving pain and recovering functionality, through the application of dry needling, acupuncture and strengthening with eccentric exercises.

Thumb Pain - Baseball Athlete

Thumb Pain - Baseball Athlete

Analysis of Correlation between Anthropometry of Hand and Smartphone Overuse on Musculoskeletal Pain in Thumb/Wrist in Medical Students: A Cross Sectional Study at Tertiary Care Center of Central India

Introduction: As mobile technology has evolved and is used extensively by most of the population, there is an increase in incidences of pain associated with the overuse of mobile phones. Pain associated with smartphone use is because of prolonged periods of time engaging with digital devices. The use of smartphones can cause various types of physical discomforts, such as neck pain, shoulder pain, and thumb pain, collectively referred to as “smartphone-related musculoskeletal disorders” (SRMDs). These medical issues arise mainly due to poor posture, repetitive movements, and prolonged use of smartphones without breaks. The impact of SRMDs on an individual’s daily life can be significant, resulting in decreased productivity, reduced quality of life, and increased healthcare costs. It is important for individuals to be aware of the risks associated with smartphone use and take steps to minimize their risk of developing SRMDs. Methods: The proposed study was an observational, questionnaire-based non-invasive study. The study was conducted in AIIMS Bhopal. The study was conducted on 130 adult males and 70 adult females. Personal and demographic details along with anthropometric measurements like Palm length, Palm breadth, and middle finger length were recorded. The level of smartphone addiction of individuals was also documented. Results: Correlations among palm length, palm breadth, length of the middle finger, smartphone size and shape, addiction level, and musculoskeletal pain were calculated. Conclusion: Present study proposes some important remedies which may minimize the musculoskeletal pain associated with the overuse of mobile phones.

Prevalence of DeQuervain’s Tenosynovitis among Clinical Physical Therapists in Islamabad: A cross-sectional study

Aims: To determine the prevalence of De Quervain’s tenosynovitis among clinical physical therapists in Islamabad. Study design: A descriptive cross-sectional study Place and duration: We conducted this study among clinical physical therapists working in hospitals and clinics of Rawalpindi and Islamabad from Feb 2022 to Aug 2022. Methods: We included 288 clinical physical therapists that were selected through non-probability quota sampling. Both male and female clinical physical therapists with ages ranging from 25 to 50 yrs having thumb pain, with one year of clinical experience who worked for 4 to 8 hours per day at least 4 days a week were included in the study. The De Quervain tenosynovitis was diagnosed in participants having tenderness at the base of the thumb and a positive Finkelstein test. A positive Finkelstein sign indicates pain over the region of the abductor pollicis and extensor pollicis tendon. The data were collected and statistically analyzed using SPSS version 26. Results were shown in the form of frequency tables and graphs. Results: Out of 288 participants, 77(26.73%) had tenderness at the base of the thumb and 77(26.74%) clinician physical therapists had positive Finkelstein test. This indicates that 26.73% had De Quervain’s Tenosynovitis. Out of them, 31.94% of cases were males and 21.51% were females. Out of these 77 therapists, 4(5.2%) therapists suffered from mild pain, 61 (79.2%) physical therapists experienced moderate pain while 12(15.6%) therapists with positive cases had severe thumb pain. Conclusions: The study concluded that there was a prevalence of De Quervain’s tenosynovitis among clinical physiotherapists experiencing thumb pain. Key words: De Quervain’s tenosynovitis, Physical Therapists, Finkelstein’s test, Thumb pain

Work-Related Thumb Pain is a Common Occupational Hazard in Physiotherapists: A Systematic Review and Meta-analysis

Questions: Is prevalence of Work-Related Thumb Pain (WRTP) high in Physiotherapists (PTs)? Can any risk factors be identified? Design: Systematic review with meta-analysis of observational studies. Participants: Practising registered physiotherapists using manual techniques at work without history of injuries or diseases affecting the thumb. Intervention: Prevalence of WRTP in PTs and risk factors associated to WRTP. Outcome measures: Current and lifetime prevalence of WRTP in physiotherapists and risk factors associated with WRTP such as preferred manipulation techniques, occupational factors and demographic factors. Results: Fourteen studies were identified and included in the analysis of the prevalence of WRTP and risk factors associated with WRTP. The lifetime prevalence, one year prevalence and current prevalence were 57.1%(95% CI=47.4%-66.2%), 38.0%(95% CI=28.7%-48.2%) and 42.4%(95% CI=27.8%-58.5%) respectively. In qualitative evidence synthesis, there was strong qualitative evidence showing that using soft tissue mobilization, working hours on manipulation, workplace experience, age and gender were not risk factors associated with WRTP while qualitative evidence for associations with using general mobilization and joint mobilization, workplace setting, and handedness was conflicting. As there are no studies reporting the association between risk factor of thumb overuse and WRTP, limited evidence is found. Conclusion: WRTP is a common occupational hazard in PTs. Further studies are warranted to investigate the causes and risk factors of WRTP.

De Quervain&amp;rsquo;s tenosynovitis and thumb pain in physiotherapists practicing manual therapy: prevalence and associated factors

&lt;p&gt;&lt;strong&gt;Background and Objective:&lt;/strong&gt; Manual therapy is a treatment approach by physical therapists where different techniques are applied to patients with hands for rehabilitation purposes. The objective of the study was to find the frequency of De&amp;rsquo;Quervain tenosynovitis and thumb and wrist pain in physical therapists working in different rehabilitation centers in relation to age, body mass index (BMI), and working hours.&lt;/p&gt;&#x0D; &lt;p&gt;&lt;strong&gt;Methods:&lt;/strong&gt; A cross-sectional study was conducted on 135 physical therapists working in different settings in Lahore, Pakistan. Physiotherapists were enrolled by convenience sampling. Data were recorded on a questionnaire form. Finkelstein test was performed to check De Quervain&amp;rsquo;s tenosynovitis. A numeric pain rating scale was sued to measure pain. The data were tested for significance using statistical tests.&lt;/p&gt;&#x0D; &lt;p&gt;&lt;strong&gt;Results:&lt;/strong&gt; On the dominant hand, 99 (73.3%) physical therapists had no wrist pain, 104 (77%) had no thumb pain, 28 (20.7%) had mild wrist pain and 20 (14.8%) had mild thumb pain. Only 21 (15.6%) physiotherapists were tested positive for Finkelstein (De Quervain&amp;rsquo;s tenosynovitis). Finkelstein test reported 100% negative result on the non-dominant side. There is a negative correlation between thumb pain with the age (r = -0.005), BMI (r = -0.110) and working hours (r = -0.033) of the physical therapists.&lt;/p&gt;&#x0D; &lt;p&gt;&lt;strong&gt;Conclusion&lt;/strong&gt;: The study concluded that the prevalence of De Quervain&amp;rsquo;s tenosynovitis, thumb, and wrist pain was more on the dominant hand than on the non-dominant side. The majority of the physical therapists reported mild to no pain in the wrist and thumb. There is a negative correlation of thumb pain with age, BMI and working hours.&lt;/p&gt;&#x0D; &lt;p&gt;&amp;nbsp;&lt;/p&gt;

Investigation of grip strength, pain threshold, pain tolerance and function in smartphone users

Purpose/Aim of the study Few studies have demonstrated the effects of smartphone use on grip strength and upper extremity function. The present study was purposed to compare smartphone users’ grip/lateral pinch strength, pain threshold/tolerance and upper limb function. Materials and methods A prospective cross-sectional study was conducted with 241 individuals. Participants were divided into three groups with the cut-off values of the Smartphone Addiction Scale (SAS). The Edinburgh Handedness Inventory (EHI) was used to determine the dominant side. Thumb pain threshold and tolerance were evaluated with the algometer. A hand dynamometer measured the grip and lateral pinch strength. Upper extremity functions were evaluated with the Shortened Disabilities of the Arm, Shoulder and Hand Questionnaire (Quick-DASH). Results Handgrip strength of the dominant/non-dominant extremities and Quick-DASH scores were higher in low-level smartphone users (p < 0.05). There was no significant difference between the groups on lateral pinch strength and pain threshold/tolerance (p > 0.05). Smartphone usage significantly affected dominant and non-dominant hand grip strength (Standardized β 1 = −0.15, β 2 = −0.15, p < 0.05). In addition, the smartphone use level negatively affected dominant lateral pinch strength (Standardized β = −0.12, p = 0.05). On the other hand, smartphone use positively affected upper extremity function (Standardized β = 0.17, p < 0.05). Conclusions As smartphone addiction increases, standard handgrip strength and functionality decrease. Pain threshold/tolerance is not affected by smartphone use. Future studies should focus on fine motor skills to present a more comprehensive upper limb function evaluation.

Dorsal Subluxation of the First Metacarpal During Thumb Flexion is an Indicator of Carpometacarpal Osteoarthritis Progression.

Dorsal Subluxation of the First Metacarpal During Thumb Flexion is an Indicator of Carpometacarpal Osteoarthritis Progression.

Trapeziometacarpal Osteoarthritis. Conservative and Surgical Treatment. A Diagnostic-Therapeutic Algorithm

Trapeziometacarpal osteoarthritis (carpometacarpal arthritis / CMC-1 arthritis) is a common cause of chronic thumb pain and may significantly worsen patients quality of life. The thumb is the most important digit of the hand. A diagnostic-therapeutic algorithm for CMC-1 arthritis should be widely known and based on up-to-date evidence-based medical knowledge. The literature describes many medical and surgical treatment approaches. The methods used vary between hospitals and clinics. They also depend on patients financial capabilities and many other factors.Medical (conservative) treatment appears to be effective in 60% of cases, in particular when the synergy of combining several treatment methods is taken advantage of. The most commonly performed surgical procedures in CMC-1 arthritis fall into two major groups, namely trapeziectomy or arthroplasty. However, there is no proof of superiority of one surgical treatment method over the others, and all of them have their advantages and disadvantages.This paper aims to present the most up-to-date knowledge about: (1) conservative and (2) surgical treatments for CMC-1 arthritis and (3) to propose a diagnostic-therapeutic algorithm for this condition. It is based on the latest literature (mainly works published in the last 5 years) acquired from databases such as PubMed, Clinical Key and Science Direct. The article is the second of a two-part series that presents a diagnostic-therapeutic algorithm for CMC-1 arthritis. The authors believe that it may contribute to broadening knowledge about CMC-1 arthritis, optimizing the therapeutic process and improving care for patients with CMC-1 arthritis in Poland.

PREVALENCE OF DE QUERVAIN’S TENOSYNOVITIS AND ITS ASSOCIATION WITH MOBILE TEXTING AMONG THE UNIVERSITY STUDENTS

De Quervain tenosynovitis of the wrist is a tightening or compression along with the inflammation of the 1st dorsal compartment. Objectives: To determine the magnitude of De Quervain's Tenosynovitis, functional disability and pain association with Mobile Texting among the students of The University of Lahore. Methods: A non-probability convenience sampling strategy was used to conduct a cross-sectional research among 191 individuals from the University of Lahore. The data was obtained using the Standardized Michigan Hand Outcomes Questionnaire after informed written agreement. The Numeric Pain Rating Scale (NPRS) was used and Finkelstein's test was performed. The data was analyzed using the SPSS. For categorical data, frequency and percent-ages were used, and the chi-square test to find the relation between the variables. P-value of &lt;0.05 was considered significant. Both male and female patients who matched the inclusion criterion of being between the ages of 22 and 32 were taken in study. Results: Out of 191 university students, 100 (52.4%) were male and 91(47.6%) were female, the age was 27 ± 0.32, dominant hand of 177 (92.67%) was right and 14 (7.33%) were left-handed. There was a positive association among Finkelstein's test and Michigan hand questionnaire (MHQ) as p &lt; 0.001 as well as Numeric Pain Rating Scale (NPRS) and Michigan hand questionnaire (MHQ) as p&lt;0.001. Conclusions: The study discovered that nearly significant proportion of the student’s text on their phones, and that as a consequence of their mobile phones usage and extreme texting speed and they experience De Quervain's. There is an affirmative correlation between frequent text messaging and thumb pain.

The Role of the Flexor Carpi Radialis Groove in Trapeziometacarpal Osteoarthritis.

Thumb carpometacarpal (CMC) osteoarthritis (OA) is a common condition. The contribution of surrounding ligaments and tendons to the stability of the CMC joint is likely altered in OA. The flexor carpi radialis (FCR) tendon runs in the trapezial FCR groove and is often noted to be frayed during CMC arthroplasty. We hypothesized that decreased integrity of the FCR tendon is related to FCR groove morphology and is associated with increased severity of CMC OA. We examined 3-dimensional surface models based on computed tomography (CT) scans of explanted trapezia from patients who underwent thumb CMC arthroplasty. Fraying of the FCR tendon was rated intraoperatively. Measurements were taken of the FCR groove to evaluate its morphology. Preoperative thumb CMC radiographs for each patient were scored using the modified Eaton classification system and the Thumb Osteoarthritis Index. Differences in the tendon groups were examined, and multivariable linear regression models were used to test the association between tendon group and FCR groove measurement. There were 136 patients who were categorized into 4 tendon groups: intact, minor fraying, fraying, and ruptured. There were no differences between the tendon groups on any measures. Our findings do not demonstrate a significant influence of FCR groove morphology on FCR tendon fraying in CMC arthroplasty patients. We also did not find a significant association between the FCR tendon state and degree of radiographic CMC OA. Further studies should investigate the in vivo FCR tendon to evaluate its tearing and inflammation in relation to basilar thumb pain.