The wrist hyperflexion and abduction of the thumb (WHAT) test: a more specific and sensitive test to diagnose de Quervain tenosynovitis than the Eichhoff's Test

Functional Outcome of De Quervain's Tenosynovitis by Population Characteristics in South Indian Population - A Prospective Study

Introduction

The purpose of this study was to evaluate the functional outcome of population characteristics in South Indian patients with chronic De Quervain's Tenosynovitis.

Materials and Methods

This prospective study was conducted in a tertiary care hospital in South India. A total of fifty chronic dequervain's tenosynovitis patients were included in the study after getting clearance from the ethical committee. The main outcome measures data were VAS and DASH scores among the variables such as age, size, gender and occupation in all our patients.

Results

By considering VAS score and DASH scores postsurgery, patients aged < 45 years of age, patients with nondominant hand involvement complaints, and homemakers had greater reductions in pain scores yet statistically insignificant. The female patients had a good reduction in DASH score postsurgery, which was statistically insignificant. However, males had a greater reduction in pain scores postsurgery females, and the difference was statistically significant.By considering VAS score and DASH scores poststeroid instillation, patients aged more than or equal to 45 years of age, males, patients with dominant hand complaints, and patients who were employed had a greater reduction in pain score following steroid therapy. However, the difference is not statistically significant.

Conclusion

Male patients, nondominant side involvement, and younger patients (age < 45 years) appear to fare well in both the surgical and steroid instillation groups. However, the employed patients do well after receiving a steroid injection, and the homemakers appear to do well in the postsurgery group.

[Pain around the first ray of the hand: differential diagnoses and treatment]

Pain around the first ray of the hand, particularly in the thumb area, is a frequent clinical problem that can have various causes. This article explores the most important differential diagnoses, including thumb carpometacarpal (CMC-I) osteoarthritis (rhizarthrosis), de Quervain's stenosing tenosynovitis, carpal tunnel syndrome and Wartenberg's syndrome. A detailed medical history, targeted clinical examination and if necessary the use of modern imaging techniques are crucial for making the diagnosis. The therapeutic approaches range from conservative measures to surgical interventions, depending on the severity and underlying cause of the disease. This article provides an overview of current diagnostic and treatment strategies.

A new high-frequency ultrasound classification of De Quervain tenosynovitis

PURPOSE

This study aimed to introduce a new high-frequency ultrasound classification of De Quervain tenosynovitis based on a large group of patients. Detailed characteristics of classification are also reported.

METHODS

From January 2014 to February 2024, patients diagnosed with De Quervain tenosynovitis were retrospectively reviewed. High-frequency ultrasound (7-14 MHz) scanning was performed to identify the anatomy of the extensor pollicis brevis and abductor pollicis longus tendons, presence of intertendinous septa, and pathologic changes. The affected wrist was compared to the contralateral wrist.

RESULTS

453 patients were included: 65 male and 388 female; mean age, 46 ± 27 years (range, 24-65 years). Symptom duration was 14 ± 27 weeks. Disease types were type 0 (n = 5), type 1 (n = 195), type 2a (n = 72), type 2b (n = 18), type 2c (n = 50), type 3 (n = 59), type 4 (n = 45), and type 5 (n = 9). Mean retinacular thickness was 2.1 ± 0.5 mm in affected wrists and 0.4 ± 0.1 mm in contralateral wrists (p < 0.01). The intercompartmental septum was significantly thicker on the affected side (1.2 ± 0.7 mm) than on the asymptomatic side (0.1 ± 0.4 mm) (p < 0.01).

CONCLUSIONS

This novel classification provides detailed ultrasonographic characteristics of De Quervain tenosynovitis, based on a large population of patients. It may help in selecting treatment and predicting outcome. However, relevance and therapeutic significance remain to be demonstrated.

LEVEL OF EVIDENCE

Therapeutic study, Level IV.

Transverse versus longitudinal skin incision in first extensor tendon release for radial styloid tenosynovitis: a randomized controlled trial

BACKGROUND

De Quervain's tenosynovitis, characterized by the entrapment of the extensor pollicis brevis and abductor pollicis longus tendons in the first extensor compartment, leads to pain and swelling near the radial styloid. When conservative treatments including rest and antiinflammatory medications fail, surgery is often recommended. This study aimed to compare transverse and longitudinal skin incisions with respect to surgical scars, postoperative pain, and functional outcomes in the open release of the first extensor compartment in radial styloid tenosynovitis.

METHODS

Seventy patients were randomly assigned to either the transverse or longitudinal skin incision group using a computer-generated random number table. Postoperative scarring was assessed using the Patient and Observer Scar Assessment Scale (POSAS), pain intensity using a verbal numerical rating scale, and functional outcomes using the Thai version of the Patient-Rated Wrist Evaluation (PRWE) questionnaire at 2, 6, and 12 weeks post-surgery. Continuous data were presented as mean ± standard deviation for normally distributed data or as median (interquartile range) for skewed distributions.

RESULTS

Following surgery, both groups showed marked improvements in Thai PRWE and POSAS scores, with no differences in functional outcomes. The longitudinal incision group had significant pain reduction at 2 and 6 weeks post-surgery. By 12 weeks, pain alleviation was similar in both groups. Wound infection was not observed in any case, and three patients reported temporary paresthesia, which was not statistically significant between the groups.

CONCLUSIONS

Both techniques demonstrate similar improvements in functional scores and reductions in pain scores, with no significant differences in complication rates, particularly concerning hypertrophic scars. The decision between transverse and longitudinal skin incisions should consider the surgeon's expertise, the patient's anatomical characteristics, and the complexity of the surgical procedure. Each approach presents distinct trade-offs, highlighting the necessity of a personalized, patient-centered strategy to optimize surgical outcomes.

TRIAL REGISTRATION

The study was registered on 27/06/2023, at clinicaltrials.in.th (TCTR20230627001). This study was retrospectively registered.

Development of de Quervain Tenosynovitis After Distal Radius Fracture

BACKGROUND

We sought to determine the risk factors for the development of de Quervain tenosynovitis after distal radius fractures. Our hypothesis is that longer periods of immobilization and higher-energy fracture patterns will correlate with the development of de Quervain tenosynovitis.

METHODS

This is a 10-year retrospective study of 1451 consecutive patients with distal radius fractures presenting to a large academic institution. The incidence and relative risk of de Quervain tenosynovitis within 1 year of sustaining a distal radius fracture were analyzed.

RESULTS

In total, 41 patients developed posttraumatic de Quervain tenosynovitis at an average time of 6.5 months. In the operative cohort, the incidence was 2.2%, and that of the nonoperative group was 3.8%. Among all affected patients, 78% admitted to strenuous, overuse activities or careers. Compared with the unaffected cohort, the de Quervain tenosynovitis group was more likely to be female and black with similar age and body mass index. The traumatic cohort was less likely to respond to corticosteroid injections. A separate extensor pollicis brevis (EPB) sheath was noted in all patients requiring surgical release.

CONCLUSIONS

Patients with a nonoperative distal radius fracture were 4.2 times more likely to develop de Quervain's than the general population, and those treated operatively were 2.4 times more likely. These patients were more likely to be female, black, and engage in strenuous overuse activities or careers. They demonstrated higher-energy fracture patterns and worse response to corticosteroid injections, more frequently requiring surgical decompression. Among those requiring surgery, patients were 2.5 times more likely to have a separate EPB sheath than those with atraumatic Quervain's.

De Quervain Tendinopathy: Anatomical Prognostic Indicators of Corticosteroid Injection Success

BACKGROUND

Anatomical variations of the first extensor compartment can affect de Quervain tendinopathy outcomes. Our study aimed to identify the anatomical prognostic indicators of symptom recurrence following a corticosteroid (CS) injection and to assess the efficacy of CS injections.

METHODS

Fifty consecutive patients received a single CS injection for de Quervain tendinopathy. Ultrasound imaging was used to assess anatomical factors of the first extensor tendon compartment of the wrist. The primary outcome was recurrence after six weeks and six months and the identification of the anatomical prognostic indicators of the recurrence. The Disabilities of the Arm, Shoulder, and Hand (DASH) score and the Visual Analogue Scale (VAS) for pain were evaluated as secondary outcomes.

RESULTS

Fifteen patients (30%) experienced symptom recurrence within six weeks. The intracompartmental septum and the number of tendon slips were associated with higher recurrence rates (adjusted odds ratio for the septum: 18.39, p = 0.045; adjusted odds ratio for each additional tendon slip: 24.68, p < 0.01). The mean DASH score improved from 74.1 ± 5 to 19.3 ± 25.3, and the mean VAS for pain from 8.5 ± 0.8 to 2 ± 2.7 (p < 0.01 for both scores). Five patients experienced minor adverse events with spontaneous improvement.

CONCLUSIONS

CS injections are a viable treatment for de Quervain tendinopathy. Anatomical variations can predict treatment success. Counseling patients based on these factors can help guide treatment decisions, including surgical options.

An optimal de Quervain's tenosynovitis splint with ergonomic thumb support and evenly distributed pressure

Splinting is a conventional treatment for de Quervain's tenosynovitis (dQt). However, existing splints have problems such as excessive thermal discomfort and poor fit, which have been pointed out in previous studies. This study proposes a new functional splint consisting of both hard and soft materials with the aim of providing wear comfort with a good fit and sufficient stability of the injured hand. Thumb support of the splint is an important component that controls and protects the affected thumb. To develop an ergonomically shaped thumb support, 16 participants with dQt were recruited for three-dimensional (3D) scanning of their hands. The angles of the wrist and the curvature of the thumb were measured using computer software, and the results were used as a reference for the design of the prototype supports. Excessive pressure on particular regions, such as bony areas, may cause discomfort or pain. To ensure the wear comfort of the proposed splint, a finite element model (FEM) was built to simulate the wear process of the splint and hence to predict the pressure distribution exerted from the splint onto the hand of the wearer. The simulated results show that the pressure is evenly distributed over the hand, indicating that patients are likely to wear the proposed splint comfortably during their treatment period.

An Integrated Review of Carpal Tunnel Syndrome: New Insights to an Old Problem

Carpal tunnel syndrome (CTS) is a common entrapment neuropathy characterized by pain, numbness, and impaired function of the hand due to compression of the median nerve at the level of the wrist. Although CTS can develop from repetitive strain, injury, or medical conditions, there are also congenital and genetic risk factors that can predispose individuals to the condition. With respect to anatomical factors, some individuals are born with a smaller carpal tunnel, which increases their susceptibility to median nerve compression. Variations in specific genes, such as those encoding proteins involved in extracellular matrix remodeling, inflammation, and nerve function, have also been linked to an increased risk for CTS. CTS is associated with a high cost of health care maintenance and loss of work productivity. Therefore, it is vital that primary care physicians fully understand the anatomy, epidemiology, pathophysiology, etiology, and risk factors of CTS, so they can be proactive in prevention, diagnosing, and guiding proper treatment. This integrated review also provides insights into how biological, genetic, environmental, and occupational factors interact with structural elements to determine who is most likely to acquire and suffer from CTS. Keeping health practitioners abreast of all the factors that could impact CTS should go a long way in decreasing the health care and socioeconomic burden of CTS.

De Quervain's Disease: A Discourse on Etiology, Diagnosis, and Treatment

Since Fritz De Quervain first postulated stenosing tenosynovitis within the radial dorsum of the wrist, much research has been conducted to provide further insights. De Quervain's Disease (DQD) is a condition that affects the tendons that control the movement of the thumb, specifically the abductor pollicis longus and extensor pollicis brevis. Numerous studies have shown that structural divergence from normal anatomy is partly related to contingency for developing DQD. Even though this condition was discovered many years ago, its exact etiology remains a subject of debate. Two schools of thought exist, one that contends an inflammatory-mediated pathway and the other degenerative changes. Substantial evidence exists for both theories, thus necessitating further studies into the etiology of DQD. Classically, Finkelstein's and Eichhoff's tests have been used as the physical examinations of choice for clinically diagnosing this condition. However, these tests have been shown to have low specificity, hence, the emergence of the wrist hyperflexion and abduction of the thumb test. Evidence also suggests that ultrasonography may become a critical diagnostic tool, especially to identify anatomical variations before invasive treatment, reducing the risk of further complications. The management of DQD is typically conservative, with escalation to steroid injections before surgery is indicated. Future research into this disease should focus on establishing a clearer picture of how anatomical variations and other pathological and occupational factors may interplay to bring about this condition. While current research has suggested possible novel approaches for diagnosing and treating DQD, more studies are required to gain greater insights into the effectiveness of these interventions.

The Radial Synergy Test: An Aid to Diagnose de Quervain's Tenosynovitis

BACKGROUND

Diagnosis of de Quervain's tenosynovitis is made clinically. Finkelstein's and Eichoff's tests are commonly utilized examination maneuvers. Their specificity has been questioned due to a propensity to provoke pain in asymptomatic patients. Using the principle of synergism, the novel radial synergy test takes advantage of isometric contraction of the first dorsal compartment with resisted abduction of the small finger.

METHODS

Electromyography was performed on 3 authors and the first dorsal compartment sampled during the maneuver. Sensitivity evaluation was performed via retrospective chart review for patients diagnosed with de Quervain's from 2013 to 2018. Inclusion criteria were documented radial synergy test, Eichoff's test, and ≥90% pain relief after lidocaine/corticosteroid injection. We enrolled 222 patients with 254 affected extremities. Specificity evaluation was performed via a prospective cohort of volunteers undergoing radial synergy and Eichoff's tests. Inclusion criterion was lack of preexisting wrist pain. Score > 0 on Visual Analog Scale was considered positive. We enrolled 48 volunteers with 93 tested extremities.

RESULTS

Electromyography revealed positive recruitment of the first dorsal compartment. Sensitivity of the radial synergy test was inferior to Eichoff's test (97% vs 91%, relative risk [RR] = 0.93 [95% confidence interval [CI] = 0.89-0.97], P < .01). Specificity of the radial synergy test was superior to Eichoff's test (99% vs 74%, RR = 1.33 [95% CI = 1.18-1.51], P < .001).

CONCLUSIONS

We describe and evaluate the radial synergy test, a novel examination maneuver to aid the diagnosis of de Quervain's. This serves as an adjunct for future diagnostic evaluations with its high specificity.

LEVEL OF EVIDENCE

Level II, diagnostic study.

Effect of dog-related parameters on the flexion test outcome: A large cohort retrospective study on physiological and orthopedic pathological-related factors

Objectives

This retrospective study evaluates the dog-related factors of variation influencing the outcome of the flexion test (FT), when performed to localize pain to a joint area, on a large group of canine orthopedic patients.

Materials and methods

The selection criteria for this retrospective study were dogs undergoing a FT in a referral orthopedic clinic between 2009 and 2020 with a complete medical record. The canine FT, described in a previously published protocol, was performed on dogs presented with an orthopedic problem. In summary, a dog's joint, identified as suspected of an orthopedic problem according to the clinical examination, was flexed for 1 min before walking 15 m on a hard and even surface. The FT was considered positive if the lameness increased after the application of the FT and negative when it remained unchanged. Statistical analysis was performed to determine which of the following criteria could influence the outcome of the flexion test: age, gender, neutered status, weight category, tested joint and initial lameness score.

Results

Over 1,161 patients' files were collected and analyzed for this research. The FT showed 82.8% (95%IC: 80.5-84.9) of true positives and 17.2% of false negatives. None of the patient's intrinsic characteristics influenced the outcome of the test (age, gender, neutered status, and weight category). The orthopedic parameters, such as the initial lameness score and the tested joint, showed to have a statistically significant influence on the outcome of the test.

Clinical relevance

The FT is an easy-to-perform technique presenting reliable results on most joints. This test presents an interest when performed in addition to a complete orthopedic examination to localize pain to a joint area. Only the orthopedic pathological-related parameters such as the lameness score and the tested joint seem to influence the outcome of the FT. The FT is not influenced by the physiological-related characteristic of the patient (age, weight category, sex, and neutered status).

CMC Mimickers: Differential Diagnosis and Work-Up for Radial-Sided Wrist Pain

In patients with radial-sided wrist pain, a myriad of possible etiologies exists and as such, a detailed history, examination, and, where indicated, imaging is obtained to try and aid with its diagnosis. The purpose of this article is to provide an overview of radial-sided wrist pain, diagnostic modalities and discuss current treatment options. More detailed information is out-of-scope for this article and if needed, we would guide the reader to seek out other selected texts, as indicated.

Idiopathic carpal tunnel syndrome and de Quervain's tenosynovitis: is there an association?

AIM

In this study, we aimed to investigate frequency of de Quervain's tenosynovitis (DQT) in patient with idiopathic carpal tunnel syndrome (ICTS).

MATERIAL AND METHODS

We evaluated 356 hands of 310 patients who applied with the pre-diagnosis of ICTS. Patients who have pain over the radial styloid, pain on movement, tenderness over the first dorsal extensor compartment and also positive Finkelstein's test were accepted clinically DQT. Presence of DQT was confirmed by ultrasonography. Motor and sensory conductions of median and ulnar nerves were studied in every hand with the pre-diagnosis of ICTS.

RESULTS

We determined ICTS in 302 (85%) hands. De Quarvain's tenosynovitis ratio was found to be 9.9% in hands with ICTS (n:302). In patients with ICTS and DQT in the same hand, the male-to-female ratio is 1/3. There were 29 cases (22 female, 7 male) with ICTS and DQT. Of the 30 hands with ICTS and DQT together; 18 had mild, nine had moderate, and 3 had severe ICTS.

CONCLUSION

This is the first study that evaluates the DQT and ICTS together. We found that patients with ICTS have a prevalence higher than normal population to have DQT. We suppose that considering DQT in patients with the pre-diagnosis of ICTS during clinical evaluation has a positive impact on clinical follow-up and treatment of these patients.

Management of de Quervain Tenosynovitis: A Critical Analysis Review

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Most cases of de Quervain tenosynovitis can be managed with nonoperative measures, and the mainstay of treatment is corticosteroid injection (CSI). The use of ultrasound may improve the accuracy of injections and can help to identify and localize injections to separate subcompartments.

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For patients who are in the third trimester of pregnancy or breastfeeding, there is no contraindication to CSI as studies have shown that it can provide optimal symptomatic relief to the mother without impacting the baby.

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When nonoperative treatment is unsuccessful, surgical release of the first dorsal compartment (FDC) can provide excellent symptom relief. Open release performed through a longitudinal incision allows for better visualization of the underlying anatomy, resulting in fewer injuries to underlying structures and a lower incidence of hypertrophic scarring compared with a transverse incision.

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For surgeons who are comfortable performing endoscopic techniques, endoscopic FDC release can result in quicker symptom improvement, superior scar cosmesis, and a lower incidence of radial sensory nerve injury.

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Studies have shown that FDC release can safely and effectively be performed using the WALANT (wide-awake local anesthesia no tourniquet) technique, which has the potential for cost savings without compromising quality or patient comfort.

Ultrasound Measurements of the First Extensor Compartment: Determining the Transection Limits for Ultra-minimally Invasive Release of De Quervain Tenosynovitis

Background: De Quervain syndrome is the second most common compressive tendinopathy. Although the length of the first extensor compartment (FEC) has been studied previously, there is no documented reported comparison study of short-axis and long-axis sonographic measurements. The thread technique, or Guo Technique, has been applied to carpal tunnel syndrome, trigger finger, and superficial peroneal compressive neuropathy. To perform this procedure, it is critically important to accurately identify the boundaries for transection. Methods: Twenty-one fresh frozen cadaver upper extremities were examined under ultrasound to determine the length of the extensor retinaculum (ER) over the FEC. Using the sonographic landmarks, the ERs were measured in short axis and long axis over their proximal to distal margins and from the distal margins to the distal edges of the radial styloids. These sonographic measurements were then compared with gross anatomical measurements. Results: The short-axis sonographic measurement of the ER on average was 22.53 mm (95% confidence interval [CI] = 20.79-24.05 mm). The long-axis sonographic measurement of the ER on average was 15.65 mm (95% CI = 13.70-17.78 mm). The average length of the ER by gross anatomical dissection was 22.40 mm (95% CI = 21.15-23.51 mm). Conclusions: The short axis is not significantly different from the gross anatomical measurement; however, the long axis is significantly lower than the gross anatomical measurement. The results support the idea that the short axis is more accurate than the long axis.

Examination of the Wrist

LEARNING OBJECTIVES

After reading this article and reviewing the supplemental videos, the participant should be able to: 1. Identify common wrist conditions that may be encountered on evaluation. 2. Describe provocative maneuvers used to confirm a diagnosis of wrist disorder. 3. Develop a systematic approach to examination of the wrist. 4. Determine appropriate diagnostic maneuvers for radial, central, and ulnar wrist pain.

SUMMARY

The wrist is a complex structure, and providers caring for hand and upper extremity conditions need to have an understanding of the wrist examination and provocative maneuvers for conditions that are encountered. Fractures, tendonitis, arthritis, and instabilities are all commonly encountered, and the provider should have an idea of the diagnosis based on clinical examination and use imaging as needed to confirm or stage a diagnosis.

Problematic smartphone use is associated with de Quervain's tenosynovitis symptomatology among young adults

BACKGROUND

Previous research has reported an association between texting messages sent and De Quervain's tenosynovitis (DQT) symptomatology. However, these studies do not report smartphone dependence and DQT symptomatology.

OBJECTIVE

We aimed to evaluate the association between problematic smartphone use (PSU) and DQT symptomatology among young adults.

DESIGN

Analytical cross-sectional study.

METHODS

We included adults between 18 and 25 years and evaluated DQT symptomatology's presence using the Finkelstein test. We used Experiences Related to Mobile Phone Use Questionnaire to measure the PSU. We carried out a generalized linear model from the Poisson family. We calculated the crude and adjusted prevalence ratios (PR) with their 95% confidence interval (CI).

RESULTS

In total, we analyzed 491 subjects, the majority were women (52%), and the median age was 20 years. Of the total study population, 53% had positive results in the Finkelstein test, while 53% of the population had PSU. After adjusting our generalized linear model for confounders variables, we found that there is a higher prevalence of DQT symptomatology in those participants with occasional PSU and frequent PSU compared with participants without PSU, (aPR = 1.73, 95% CI: 1.47-2.05) and (aPR = 1.61; 95% CI: 1.29-2.00); respectively. We also found a higher prevalence of DQT symptomatology related to the number of hours per day in smartphones, pain with smartphones in the last week and using WhatsApp.

CONCLUSION

We found a higher prevalence of De Quervain's tenosynovitis symptomatology in the people with problematic smartphone use.

An Evidence-Based Review of Overuse Wrist Injuries in Athletes

Overuse wrist injuries are a common problem in athletes and can be related to tendinopathies or osteoarticular pathology. Fortunately, athletes rarely miss time from their sport due to these conditions because many can be treated nonoperatively. For refractory cases, there often is a curative surgical procedure that can be done during the off-season.

Conservative management of De Quervain's tendinopathy with an orthopedic manual physical therapy approach emphasizing first CMC manipulation: a retrospective case series

De Quervain's tendinopathy (DQT) is a musculoskeletal disorder that limits hand function of affected individuals. Management of DQT can include splinting, activity modification, medications, corticosteroid injections, physical therapist management, and surgery. There is limited evidence to support the combination of manual therapy and exercise interventions within an Orthopedic Manual Physical Therapy (OMPT) approach when managing patients with DQT. Three patients identified with DQT underwent a multi-modal treatment regimen including carpometacarpal (CMC) thrust and non-thrust manipulation, end range radiocarpal mobilization, mobilization with movement (MWM), strengthening exercises, and grip proprioception training. Outcomes were assessed using the numeric pain rating scale (NPRS), Jamar hand dynamometer grip strength, and the Quick Disabilities of the Arm, Shoulder, and Hand (Quick DASH) questionnaire. These measures were administered at baseline and discharge. Each patient demonstrated improvements in all outcome measures and required ten visits or less to reach a satisfactory outcome. The NPRS improved by a mean of 7.1 points on a 0-10 scale, Quick DASH improved by an average of 37.1%, and grip strength improved by a mean of 27.6 pounds. Each patient was able to return to daily tasks without pain and all improvements were maintained at six month follow-up. An impairment based OMPT management approach was effective in managing three patients with DQT. The inclusion of first CMC manipulation within this multi-modal approach may enhance conservative management of patients with DQT. Because a cause and effect relationship cannot be inferred from a case series, further research is recommended to investigate the efficacy of this management approach.

Extensor Tendon Injuries in the Athlete

An athlete's hands are susceptible to a variety of acute and cumulative traumas depending on their chosen sport. Depending on the timing of the injury, the immediate requirements of the athlete, and future aspirations, treatment strategies may need individual customization. This article offers a brief review of the anatomy and complex function of the extensor mechanism, discusses the etiologies of various extensor injuries, and outlines the multiple treatment options and expected outcomes.

Diagnostic accuracy of imaging modalities in the detection of clinically diagnosed de Quervain's syndrome: a systematic review

OBJECTIVES

To collate and synthesise the literature to provide estimates of the diagnostic accuracy of imaging modalities, and summarise the reported imaging findings associated with de Quervain's syndrome.

MATERIALS AND METHODS

A systematic search was performed in seven databases (MEDLINE, EMBASE, CINAHL, Cochrane Library, PROSPERO, Web of Science, and ProQuest Dissertations & Theses Global). Two reviewers independently performed screening, data extraction and quality assessment using a modified Quality Assessment of Diagnostic Accuracy Studies-2. Measures of diagnostic accuracy were summarised for different modalities and imaging findings.

RESULTS

Twenty-two studies were included, reporting ultrasound, magnetic resonance imaging, X-ray and scintigraphy findings. Reported imaging findings included sheath effusion, retinaculum thickening, subcutaneous oedema, tenosynovitis, hypervascularity, increased tendon size, bony erosion, apposition, calcific lesions and increased uptake on scintigraphy. The most commonly reported imaging findings related to the tendon sheath, with a sensitivity ranging from 0.45 to 1.00 for thickening, and 0.29 to 1.00 for effusions. The risk of bias of studies is largely unclear owing to a lack of reported detail.

CONCLUSIONS

The accuracy of imaging in the diagnosis of de Quervain's syndrome is unable to be determined because of the quality of the studies included. Ultrasound is the most frequently studied imaging modality and may be the modality of choice in clinical practice. Further research involving both symptomatic and asymptomatic participants and clear definitions of abnormal findings are required to better evaluate the effectiveness of imaging in identifying de Quervain's syndrome.

Comparison between simple release and Z-plasty of retinaculum for de Quervain's disease: a retrospective study

We compared two surgical procedures for de Quervain's disease that was not responsive to conservative treatment. Group A (simple release) consisted of 38 patients and group B (Z-plasty of the retinaculum) included 36 patients. The visual analogue scale score and the Disabilities of the Arm, Shoulder and Hand Score improved significantly after surgery; there were no statistical differences in outcome between the two groups. In group A, one patient required reoperation, two had subluxations of extensor tendons and two had temporary loss of sensation in the area of the radial nerve. In group B, two patients had temporary loss of sensation. The mean time to resolution of pain at the operative site was significantly shorter in group B. Both simple release and Z-plasty were effective surgical methods. Z-plasty allowed earlier return to activities of daily living but there was no statistical difference between the two groups in incidence of complication. Level of evidence: IV.

Pulley Reconstruction for Symptomatic Instability of the Tendons of the First Extensor Compartment Following de Quervain's Release

Background  Surgical management of de Quervain's tenosynovitis is based on decompression of the first extensor compartment. A simple release of the first compartment can cause instability of the extensor pollicis brevis (EPB) and abductor pollicis longus (APL) tendons in zone seven of the extensors. The WHAT test (wrist hyperflexion and abduction of the thumb) is very effective in diagnosing this instability. Patients and Methods  In this retrospective monocentric study, we analyzed a case series of 10 patients all of whom underwent a reconstruction of the first extensor compartment using a retinacular graft because of symptomatic instability after decompression surgery. The reconstruction was a modified technique of the sixth compartment. Functional outcome and characteristics of the newly reconstructed pulley were examined by physical examination with the aid of ultrasound and internationally validated questionnaires. Results  Four patients had a good-to-excellent functional outcome, all of those had a maximum of two surgical procedures performed on the first extensor compartment. Six patients presented poor functional outcome. In four of them, more than two surgical procedures were performed. Minor residual instability was noted in six cases, found in both the groups. Conclusion  The reconstruction procedures on the first compartment seemed to be satisfactory in treating instability of the EPB and APL tendons after primary surgical release for de Quervain's disease. Level of Evidence  Level IV, observational study without controls.

Diagnosis and management of intersection syndrome as a cause of overuse wrist pain

Wrist pain due to repetitive motion or overuse is a common presentation in primary care. This case reports the rare condition of intersection syndrome as the cause of the wrist pain in an amateur tennis player. This is a non-infectious, inflammatory process that occurs where tendons in the first extensor compartment intersect the tendons in the second extensor compartment. Suitable history and examination provided the diagnosis, which was confirmed by MRI. Management consisted of early involvement of the multidisciplinary team, patient education, workplace and sporting adaptations, rest, analgesia, reduction of load, protection and immobilisation of the affected joint followed by a period of rehabilitation.

Presence of an intracompartmental septum detected by ultrasound is associated with the failure of ultrasound-guided steroid injection in de Quervain's syndrome

The purpose of this study was to find clinical or ultrasound characteristics that might predict the failure of conservative treatment in de Quervain's syndrome. A total of 42 ultrasound-guided injections have been performed in 41 patients after clinical and ultrasound examination. Patients were immobilized for 3 weeks with a spica splint cast, and clinically evaluated at 3 and 6 weeks and by phone call at the end of the study. Ultrasound showed a septum between the tendons of the first comportment in 34% of the wrists. At last follow-up (mean 15.6 months after the injection) ten patients (24%) had undergone surgery. When comparing ultrasound and clinical characteristics of the operated and non-operated wrists, we found that patients with a high baseline visual analogue scale, with all positive clinical tests and with a persistent intracompartmental septum, had a significantly higher risk of failure following conservative treatment.

LEVEL OF EVIDENCE

III.

Pulley Reconstruction As Part of the Surgical Treatment for de Quervain Disease: Surgical Technique with Medium-Term Results

Background Simple decompression of the first extensor compartment is commonly used for treating de Quervain disease, with the possible complication of subluxation of the tendons of the abductor pollicis longus (APL) and extensor pollicis brevis (EPB) over the radial styloid. To prevent this painful subluxation of the tendons, several methods of reconstructing the pulley have been proposed. Questions/Purposes The purpose of our study was to evaluate a new technique for reconstructing the first extensor compartment following a release for de Quervain disease. Patients and Methods A retrospective study (mean length 40.4 months) was performed in 45 patients. The outcome assessment involved two different questionnaires and ultrasound evaluation of any tendon subluxation. Results None of the patients required reoperation for tendon instability or incomplete decompression of the first extensor compartment. Two patients experienced clicking around the radial styloid after surgery. This was not related to the amount of volar migration of the tendons. Conclusions We believe the reconstruction proposed here is an effective method of preventing painful subluxation of the APL and EPB following a release of the first extensor compartment.

Work related etiology of de Quervain's tenosynovitis: a case-control study with prospectively collected data

Background

The etiology of de Quervain's tenosynovitis (dQ) has been based on conflicting small case series and cohort studies lacking methodological rigor. A prospective case-control study was conducted to analyze the most common risk factors for dQ.

Methods

Between January 2003 and May 2011, 189 patients surgically treated for dQ vs. 198 patients with wrist ganglia (WG) (controls) were identified in our clinic’s electronic database. Sample characteristics, exertional, anatomical, and medical risk factors were compared between groups.

Results

dQ vs. WG differed by average age (52 vs. 43 years) and gender ratio (15/62 vs. 26/39). No significant difference between dQ vs. WG was found after subgrouping professional activities (manual labor: 18 % vs. 26 %, respectively, p = 0.23). No asymmetric distribution of comorbidities, wrist trauma, forceful or repetitive manual work, or medication was observed.

Conclusions

Neither heavy manual labor nor trauma could be shown to be predisposing risk factors for dQ.

De Quervain Tenosynovitis Following Trapeziometacarpal Ball-and-Socket Joint Replacement

Background One of the surgical treatment options for trapeziometacarpal (TMC) joint arthritis is a prosthetic ball-and-socket replacement. One of the complications in the postoperative setting is de Quervain tendinopathy. Purposes Although this complication has been reported following a resection athroplasty, we questioned whether lengthening of the thumb following the Ivory (Memometal, Stryker Corporate, Kalamazoo, MI, USA) ball-and-socket arthroplasty could be a causal factor. Methods In a prospective study regarding the overall outcome of the Ivory prosthesis, we analyzed 96 cases (83 patients; 69 female, 12 male, 8 bilateral) of primary implanted Ivory prosthesis and the incidence of de Quervain disease during the first year following surgery. We found a particularly high incidence (17%) of de Quervain tendinopathy the first year following this ball-and-socket arthroplasty. We measured the lengthening of the thumb radiographically in the group presenting de Quervain and the asymptomatic group and compared this measure between the two groups. Results We did not find any measurable or statistically significant difference between the groups regarding lengthening. Discussion These findings suggest that lengthening of the thumb following ball-and-socket arthroplasty is not a causal factor in the development of de Quervain tendinopathy within one year after surgery.