Is an intervention with a custom-made splint and an educational program useful on pain in patients with trapeziometacarpal joint osteoarthritis in a daily clinical setting?

Assessment and treatment of nonsurgical thumb carpometacarpal joint osteoarthritis: A modified Delphi-based consensus paper of the American Society of Hand Therapists

BACKGROUND

While the literature is abundant on hand therapy assessment and treatment of nonsurgical thumb carpometacarpal (CMC) osteoarthritis (OA), clarity and uniformity are meager, making it a desirable diagnosis to establish expert consensus.

PURPOSE

This study aimed to ascertain if consensus exists for the assessment and treatment of nonsurgical management of thumb CMC OA in the hand therapy clinical setting.

STUDY DESIGN

This was a consensus paper via the modified Delphi approach.

METHODS

A modified Delphi method was used to determine consensus among an expert panel, including hand therapists and hand surgeons, via two online surveys. A consensus paper steering committee (from the American Society of Hand Therapist's research division) designed the surveys and analyzed responses. Consensus was established as 75% agreement among the expert panel. Demographic information was collected from the expert panel.

RESULTS

The expert panel included 34 hand therapists and seven hand surgeons. The survey response rates were 93.6% for the first survey and 90.2% for the second survey. Consensus recommendations were classified according to the World Health Organization categorization. These included evaluating the body structures for clinical signs/clinical testing and body functions for pain, range of motion for palmar abduction, radial abduction, opposition, and thumb metacarpal phalangeal flexion/extension, and grip and tripod pinch strength. Further consensus recommendations were for the assessment of function using a region-specific, upper extremity patient-reported outcome measure (activity and participation), environmental factors, outcome expectation, and illness perception within the patient's unique environmental and social contexts. Treatment recommendations included the use of an orthosis during painful activities, a dynamic stability program (stable C posture, release of tight adductors, and strengthening of stabilizers), patient education, joint protection techniques, adaptive equipment, and functional-based intervention.

CONCLUSIONS

The findings describe the consensus of a group of experts and provide a clinical reference tool on the hand therapy assessment and treatment of nonsurgical thumb CMC joint OA.

The immediate effect of thumb orthoses on upper extremity's movement: A kinematic analysis of five unique devices

BACKGROUND

Thumb orthoses are a standard treatment modality, with substantial evidence to support its usage for multiple conditions affecting the upper extremity. Despite commonly prescribed, little is known about the immediate impact of such devices on the upper extremity, including potential modifications on motor patterns.

RESEARCH QUESTION

We aimed to determine the changes in the upper limb kinematics during the usage of thumb orthotics, comparing differences in orthotic design, length, and fabrication materials.

METHODS

In this cross-sectional study, subjects performed a standardized reaching task and the placing subtest of the Minnesota Manual Dexterity Test (MMDT) while wearing five unique thumb orthoses. Besides the active range of motion of the shoulder, elbow, wrist and hand joints, movement smoothness (Number of Movement Units-NMU), speed, and motion control strategies were analyzed through eight Qualisys Oqus 300 cameras (Qualisys AB, Göteborg, Sweden).

FINDINGS

Ten non-disabled, university students participated in this study. Despite differences in fabrication materials, all orthotics reduced thumb's abduction (13.3° to 4.3°), and metacarpophalangeal flexion (11.5° to 4.2°). Although orthotics impacted movement smoothness and hand function during its usage, forearm-based devices further increased the NMUs and the time required for the MMDT performance (Control: NMU = 4.8, MMDT = 58.1; Long Orthotics: NMU = 6.6, MMDT = 78.2), while short, flexible orthoses provided thumb stabilization without significant impact on upper extremity movement strategies.

SIGNIFICANCE

Although joint stabilization was similar among orthotics fabricated with rigid and flexible materials, the improved hand dexterity observed during the use of flexible devices suggests an advantage of flexible orthotics for enhanced stability and hand function. These results can assist healthcare professionals during the selection and prescription of thumb orthotics, providing information not only on the range of motion but other sensorimotor aspects involved in upper extremity movement patterns that may be affected by orthotics usage.

The Treatment of Primary Arthritis of the Finger and Thumb Joint

BACKGROUND

Primary finger and thumb joint arthritis is common, with a markedly rising prevalence from age 50 onward. As the population as a whole ages, the need for effective, stage-appropriate treatment of this condition is increasing.

METHODS

This review is based on pertinent publications retrieved by a selective search in the PubMed and Cochrane Library databases.

RESULTS

Pain on movement and morning stiffness are commonly reported symptoms. Thorough physical examination and plain x-rays are mandatory. In the early stages of primary finger and thumb joint arthritis, a conservative, multimodal treatment approach involving the use of splints, physiotherapy, and non-steroidal anti-inflammatory drugs can be helpful. The intraarticular injection of hyaluronic acid or cortisone seems to relieve pain in the short term, but its long-term efficacy in primary finger and thumb joint arthritis is questionable. Arthrodesis (joint fusion) is a reliable surgical treatment option for arthritis of the metacarpophalangeal and interphalangeal joints of the thumb. For mobility-preserving surgery of the metacarpophalangeal joints of the second through fifth fingers, silicone implant arthroplasty remains the gold standard. Symptomatic, advanced arthritis of the distal interphalangeal joint is most effectively treated with arthrodesis.

CONCLUSION

The efficacy of conservative treatment has been documented in high-quality clinical trials, while that of surgical treatment has not. The various surgical methods have yielded benefits in routine clinical use, but these remain to be assessed in randomized and controlled trials.

Orthotic use for CMC osteoarthritis: Variations among different health professionals in Brazil

STUDY DESIGN

Cross-sectional descriptive study.

INTRODUCTION

Osteoarthritis (OA) is the most prevalent musculoskeletal disease in the adult and older adult populations. The use of orthoses to stabilize the thumb's articular complex is one of the most common conservative management strategies. Despite substantial research about this topic, there is insufficient evidence about the optimal use of orthoses to inform clinical practice, contributing to practice variations within and across health professionals.

PURPOSE OF THE STUDY

To identify the prescription patterns, design preferences, and barriers for the use of orthotic devices among Brazilian health care professionals involved in the treatment of patients with OA of the basal thumb joint.

METHODS

An electronic questionnaire was sent to occupational therapists, physiotherapists, and rheumatologists across Brazil through professional association mailing lists. Survey included questions about orthosis design, materials, and barriers to the use of orthotic interventions. Respondents indicated their use based on photographs of 25 orthoses models that were selected through bibliographic review and expert consultation. Descriptive statistics, the chi-square test for independence, and the Fisher exact test were used to compare differences among orthotic prescription preferences, barriers, and challenges observed amidst the 3 participants' professional classes.

RESULTS

There was no consensus about orthotic prescription among 275 professionals who answered the survey. About 69% of participants reported the use of multiple orthosis during treatment of patients with thumb OA. Results suggest significant variations in the number of joints included and stabilization strategies adopted, with a preference for orthotics made in rigid materials and involving the wrist, carpometacarpal, and metacarpophalangeal joints (P < .001). The lack of knowledge about orthotic options, institutional regulations, and policies were the major barriers reported by respondents (P < .01).

CONCLUSION

A plentiful variety of different orthoses designs were observed in this study, and the prescriptions made by 3 professional classes showed differences regarding types of stabilization, joint involvement, and positioning. Despite the existence of clinical trials suggesting benefits for specific custom-made design models, our results indicated widespread clinical variation in practices and preferences.

LEVEL OF EVIDENCE

Not applicable.