Dynamic stabilization home exercise program for treatment of thumb carpometacarpal osteoarthritis: A prospective randomized control trial

What Are the Most Clinically Effective Nonoperative Interventions for Thumb Carpometacarpal Osteoarthritis? An Up-to-date Systematic Review and Network Meta-analysis

BACKGROUND

Thumb carpometacarpal osteoarthritis (CMC-1 OA) is a common and debilitating condition, particularly among older adults and women. With the aging population, the prevalence of CMC-1 OA is expected to rise, emphasizing the need to find effective nonoperative strategies. So far, for determining the most effective nonoperative interventions in CMC-1 OA, two network meta-analyses (NMAs) have been published. However, these NMAs were limited to specific intervention types: one comparing multiple splints and the other comparing different intraarticular injections. Therefore, an NMA that compared all nonoperative intervention types is urgently needed.

QUESTIONS/PURPOSES

This study aimed to assess and compare the effectiveness of available nonoperative interventions (both nonpharmacologic and pharmacologic) for CMC-1 OA to establish which nonoperative options are more effective than control in terms of (1) pain, (2) function, and (3) grip strength.

METHODS

We adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) NMA guidelines (PROSPERO: CRD2021272247) and conducted a comprehensive search across Medline, Embase, CENTRAL, and CINAHL up to March 2023. We included randomized controlled trials (RCTs) and quasi-RCTs evaluating nonoperative interventions for symptomatic CMC-1 OA, excluding inflammatory or posttraumatic arthritis. Studies comparing ≥ 2 interventions or against a control, focusing on pain reduction, functional improvement, and grip strength, were selected. We assessed methodologic quality using the modified Coleman Methodology Score, including only studies scoring > 70. Risk of bias was evaluated with the Risk of Bias 2.0 tool, and evidence quality with Confidence in Network Meta-Analysis (CINeMA). Of 29 screened studies, 22 (21 RCTs and one quasi-RCT) were included, involving 1631 women and 331 men. We analyzed eight different nonoperative interventions, including splints, hand exercises, injections, and multimodal treatment (≥ 2 nonpharmacologic interventions or nonpharmacologic with a pharmacologic intervention). Six studies had a low risk of bias, eight had a high risk, and the remainder were moderate. We extracted mean and SD scores, and NMA and pairwise analyses were performed at short- (≤ 3 months) and medium-term (> 3 to ≤ 12 months) time points. Standardized mean differences were re-expressed into common units for interpretation, which were the VAS (range 0 to 10) for pain, the DASH test (range to 100) for function, and pounds for grip strength. Clinical recommendations were considered strong if the mean differences exceeded the minimum clinically important difference-1.4 points for VAS, 10 points for DASH, and 14 pounds for grip strength-and were supported by moderate or high confidence in the evidence, as assessed using CINeMA methodology.

RESULTS

Our NMA (based on moderate or high confidence) showed a clinically important reduction in pain at the short-term time point for multimodal treatment and hand exercises versus control (mean difference VAS score -5.3 [95% confidence interval (CI) -7.6 to -3.0] and -5.0 [95% CI -8.5 to -1.5]). At the medium-term time point, only the rigid carpometacarpal-metacarpophalangeal (CMC-MCP) splint was superior to control (mean difference VAS score -1.9 [95% CI -3.1 to -0.6]) and demonstrated clinical importance. For function, only the rigid CMC-MCP splint demonstrated a clinically important improvement at the medium-term time point versus control (mean difference DASH score -11 [95% CI -21 to -1]). Hand exercises resulted in a clinically important improvement in short-term grip strength versus control (mean difference 21 pounds [95% CI 11 to 31]).

CONCLUSION

This systematic review and NMA show that multimodal treatment and hand exercises reduce short-term pain and improve grip strength, while a rigid CMC-MCP splint enhances medium-term function. Future research should evaluate long-term efficacy.

LEVEL OF EVIDENCE

Level I, therapeutic study.

Efficacy and safety of non-pharmacological, pharmacological and surgical treatments for hand osteoarthritis in 2024: a systematic review

BACKGROUND

We aimed to update the 2018 systematic literature review on the efficacy and safety of treatments for hand osteoarthritis (OA), which was based on 126 studies.

METHODS

We performed a systematic literature search on randomised controlled trials from June 2017 up to 31 December 2023. Risk of bias was assessed using the RoB2 tool. Meta-analyses of previous and new studies regarding the efficacy for pain, function, grip strength and OMERACT/OARSI responders were performed. Certainty of evidence was judged using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) tool.

RESULTS

Sixty-five new studies were included. For non-pharmacological interventions, there was low-certainty evidence for a small long-term effect of hand exercises and a moderate long-term effect of thumb orthoses for pain, and moderate-certainty evidence that assistive devices had a moderate long-term effect on function. Concerning pharmacological interventions, there was low-certainty evidence for a moderate short-term effect of oral non-steroidal anti-inflammatory drugs (NSAIDs) on pain, high- and moderate-certainty evidence for a small short-term effect of topical NSAIDs and oral glucocorticoids on function, respectively, and low-certainty evidence that oral glucocorticoids had a small short-term effect on function. Further, there was low-certainty evidence that methotrexate had a small long-term effect on pain. The heterogeneity of studies did not allow for any meta-analyses on surgery.

CONCLUSION

The results largely support current treatment recommendations. However, there is a lack of interventions that efficiently improve grip strength, and the evidence for most current treatments is still limited. To better understand action mechanism of different treatments, future trials should include hand OA subtyping and be powered for subgroup analyses.

Effect of physical therapy interventions in individuals with primary thumb carpometacarpal osteoarthritis: a systematic review and meta-analysis

PURPOSE

This systematic review and meta-analysis aimed to investigate the effect of physiotherapeutic interventions in individuals with thumb primary CMC OA on the outcomes of pain, hand function, grip or pinch strength.

METHODS

RCTs that used some type of physiotherapeutic intervention compared to a passive or active control group were included. The quality of the evidence was assessed using the GRADE approach and, for the calculation of the meta-analysis, the standardized difference of means (SMD) was used.

RESULTS

Nineteen studies (n = 1477) were included and eight studies (n = 568) underwent meta-analysis. Orthosis intervention was superior to passive control group for pain improvement (SMD = -1.02, p = 0.03, very low evidence), grip strength (SMD = 0.45, p = 0.02, very low evidence) and pinch strength (SMD = 1.78, p = 0.01, very low evidence), but there was no improvement in hand function (p = 0.54). The use of a neoprene orthosis was similar to the use of a thermoplastic orthosis in improving pain (p = 0.38), hand function (p = 0.50), grip strength (p = 0.42) and pinch strength (p = 0.14). The use of short thermoplastic orthosis was also similar to long thermoplastic orthosis in improving pain (p = 0.88) and hand function (p = 0.58).

CONCLUSION

The use of orthoses is superior to no intervention in all outcomes, exception hand function.

New Technologies in the Treatment of Base of Thumb Osteoarthritis

Symptomatic osteoarthritis (OA) of the first carpometacarpal (CMC) joint is prevalent and debilitating, commonly affecting the elderly and postmenopausal population. This review highlights the latest advancements in the treatment of thumb CMC OA, which historically includes a range of nonsurgical and surgical options without a consensus benchmark. We will focus on innovative and emerging technologies. Nonsurgical treatments typically comprise custom braces and corticosteroid injections. In addition, this review explores advanced approaches such as 3D printed braces, which have improved patient satisfaction, and novel intra-articular injectables such as autologous fat, optimized by ultrasonography to enhance treatment precision and outcomes. Although standard surgical treatments include trapeziectomy, with or without ligament reconstruction and tendon interposition, more recent implant arthroplasty designs show promising long-term survival. Newer interventions include patient-specific instrumentation for metacarpal osteotomies, selective joint denervation, and innovative suspensionplasty devices, all marked by their increased precision and personalized care. However, it is important to note that these novel technologies are not yet established as superior to standard treatments of thumb CMC OA.

The Effectiveness of Exercise-Based Rehabilitation in People With Hand Osteoarthritis: A Systematic Review With Meta-analysis

OBJECTIVE: To investigate the effectiveness of exercise-based rehabilitation programs compared with nonexercise intervention or no intervention for people with hand osteoarthritis (OA). DESIGN: Intervention systematic review with meta-analysis. LITERATURE SEARCH: We searched 5 databases on July 23, 2023. STUDY SELECTION CRITERIA: We included randomized controlled trials that compared the effectiveness of rehabilitation programs that included an exercise component, with nonexercise intervention or no intervention for people with hand OA. DATA SYNTHESIS: Standardized mean differences (SMDs) were pooled using a random-effects model. The risk of bias was assessed using the Cochrane Risk of Bias 2.0 tool. The certainty of the evidence was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) approach. RESULTS: Fourteen trials were included in the meta-analysis (n = 1341 participants). In the immediate term (<24 weeks), there was low-certainty evidence of an effect of exercise-based rehabilitation on improving pain (13 trials; SMD = -0.65; 95% CI: -1.06, -0.25), function (11 trials; SMD = -0.35; 95% CI: -0.54, -0.15), and grip strength (14 trials; SMD = 0.21; 95% CI: 0.03, 0.38). There was moderate-certainty evidence of an effect on reducing stiffness (7 trials; SMD = -0.33; 95% CI: -0.51, -0.16). There was low-certainty evidence of no effect on improving pinch strength and quality of life. For the long term (≥24 weeks), there was low-certainty evidence that exercise-based rehabilitation had no additional effect on improving pain, function, and stiffness. CONCLUSION: Exercise-based rehabilitation improved pain, function, stiffness, and grip strength in people with hand OA in the immediate term; the benefits were not maintained in the long term. J Orthop Sports Phys Ther 2024;54(7):1-11. Epub 20 March 2024. doi:10.2519/jospt.2024.12241.

Exercise-Based Interventions Are Effective in the Management of Patients with Thumb Carpometacarpal Osteoarthritis: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

Exercise-based interventions are a common management strategy in patients with thumb carpometacarpal joint osteoarthritis (CMCJ OA); however, their exact effect on or the use of an optimal training programme for reducing pain and disability remains unclear. Our purpose was to evaluate the effectiveness of exercise-based interventions compared with other conservative interventions in patients with CMCJ OA. We performed a systematic review and meta-analysis based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Fourteen randomised clinical trials with 1280 patients were finally included. Exercise-based interventions present statistically and clinically better outcomes in reducing pain intensity (mean difference [MD]: -21.91; 95% confidence interval [CI]: -36.59, -7.24; p = 0.003) and wrist disability (MD: -8.1, 95% CI: -4.6, -11.5; p = 0.02) compared with no treatment at short-term follow-up. Proprioceptive exercises have statistically and clinically better outcomes compared with standard care only in pain intensity at very short-term (standardised mean difference [SMD]: -0.76; 95% CI: -1.30, -0.21; p = 0.007) and short-term (SMD: -0.93; 95% CI: -1.86, -0.01; p = 0.049) follow-up and statistically better results in wrist disability at very short-term (SMD: -0.94; 95% CI: -1.68, -0.21; p = 0.01) follow-up. No differences were found between the comparators at mid- and long-term follow-up. Low to moderate certainty of evidence suggests that exercise-based interventions can provide clinically better outcomes compared with no treatment in patients with thumb CMCJ OA, at least in the short term.

Effects of a neuromuscular joint-protective exercise therapy program for treatment of wrist osteoarthritis: a randomized controlled trial

BACKGROUND

Individuals with wrist osteoarthritis (OA) can suffer from pain, muscular weakness, and impaired motion of the wrist, which can reduce the quality of life. While there is strong evidence that all patients with OA should receive first-line treatment with education and exercises, this approach has not yet been proposed for individuals with wrist OA. Therefore, this trial aimed to evaluate the effectiveness of a first line neuromuscular joint-protective exercise therapy program compared to a training program with range of motion (ROM) exercises in patients with wrist OA.

METHODS

In this randomized controlled trial (RCT), 48 patients with symptomatic and radiographically confirmed wrist OA were randomly allocated to a 12-week self-management program with either a neuromuscular joint-protective exercise therapy program (intervention group) or a training program with ROM exercises only (control group). Our primary outcome measure was the Patient-Rated Wrist Evaluation (PRWE) with secondary outcome measures of grip strength, range of wrist motion, the Numerical Pain Rating, Scale (NPRS), the Disabilities of the Arm, Shoulder, and Hand (DASH) and the Generalized Self-Efficacy Scale (GSES). The outcome measures were evaluated by a blinded assessor at baseline and 12 weeks. Between-groups differences were analyzed using the Mann-Whitney U test and within-group differences were analyzed with the Wilcoxon signed-rank test.

RESULTS

A total of 41 participants were analyzed at 12 weeks. There were no significant differences in PRWE between the groups at 12 weeks (p = 0.27). However, DASH improved significantly in the intervention group compared to the control group (p = 0.02) and NPRS on load within the intervention group (p = 0.006). The difference in DASH should be interpreted with caution since it could be due to a non-significant increase (worsening) from baseline in the control group in combination with a non-significant decrease (improvement) in the intervention group.

CONCLUSIONS

This RCT showed that the novel neuromuscular joint-protective exercise therapy program was not superior in reducing pain and improving function compared to a training program with ROM exercises at 12 weeks. Future research is warranted to evaluate the effectiveness of forthcoming exercise therapy treatment programs for patients with wrist OA.

TRIAL REGISTRATION

ClinicalTrials.gov, NCT05367817. Retrospectively registered on 10/05/2022. https://clinicaltrials.gov .

Arthroscopy-assisted partial trapeziectomy combined with ligament reconstruction for thumb carpometacarpal joint osteoarthritis: A different technique

BACKGROUND

There is no consensus on the best surgery option for thumb carpometacarpal osteoarthritis (CMC OA). The traditional method has the risk of large trauma, obvious metacarpal subsidence, and decreased stability. The aim of this study is to introduce a different technique to restore the function and stability of the first carpal metacarpal joint with minimal trauma, rapid pain relief, reduced complications, and the clinical outcomes in the long-term follow-up was evaluated and statistically analyzed.

METHODS

This was a retrospective study of 10 patients with a mean age of 51.8 years. The surgery consisted of removing partial trapezium through arthroscopy, reconstructing the stability with flexor carpi radialis suspension and tendon interposition. The subjective assessment included visual analog scale (VAS) of pain, quick disabilities of the arm, shoulder, and hand (Quick-DASH) score, and patient satisfaction. The range of motion, grip strength, pinch strength, and radiographic assessment, which can reflect stability of the thumb, were objectively evaluated and statistically analyzed.

RESULTS

Ten patients were monitored at a mean follow-up of 6.8 years. The mean grip strength improved significantly from 16.64 to 22.57 kg after surgery. Pinch strength improved significantly from 3.72 to 5.71 kg on average. The Kapandji score improved significantly from 5.7 to 8.6 on average. 80% (8/10) of the patients were satisfied with this surgery. On objective indicators, the VAS score decreased significantly from 6.4 to 1.3 on average. The mean Quick-DASH score improved significantly from 6.1 to 28.9. Postoperative x-ray showed slight subsidence and dislocation of the first metacarpal in two patients and did not affect the function by measurement.

CONCLUSION

Arthroscopy-assisted partial trapezium resection combined with ligament reconstruction could be a workable and promising surgical technique in patients with thumb CMC OA. It can offer the advantages of minimizing surgical injury by preserving the first carpal metacarpal joint capsule to protect its stability, with a rapid pain relief, function improvement, and satisfactory results in patients' clinical measurements.

Characterizing response to a dynamic stability modeled approach for thumb carpometacarpal joint pain: A retrospective study

STUDY DESIGN

Retrospective case series.

INTRODUCTION

Literature trends indicate that thumb dynamic stabilization may benefit clients with thumb carpometacarpal (CMC) joint pain and arthritis. There is minimal research investigating whether client characteristics predict responsiveness to hand therapy for thumb dynamic stabilization.

PURPOSE OF THE STUDY

1) To investigate how adults with thumb CMC joint pain responded to a hand therapy dynamic stabilization modeled intervention. 2) To determine if various client factors influenced responsiveness and to what extent.

METHODS

An electronic medical record search identified adults treated from August 2009 through December 2015 for thumb CMC joint pain. Radiographs were retrospectively staged. Outcome measures were 1) Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) total disability score and 2) Numerical Pain Rating Scale (NPRS). Paired t-tests were performed to compare pre and post treatment measures. Multivariate analyses were used to investigate predictive factors.

RESULTS

A total of 249 charts were analyzed. Large overall significant effects were noted for disability score (QuickDASH P <.001, X = 12.1, Cohen's d = 0.9). The average improvement of 2.1 (SD = 2.6) points exceeded the minimal clinically important difference (MCID) of 1.7 points on the NPRS pain scale. Significant predictors of QuickDASH Scores were radiographic staging, bilateral hand involvement and initial pain ratings. Significant predictors for change in pain scores (meeting or exceeding the minimal clinically important difference for the NPRS) were bilateral thumb involvement and initial "pain at worst" rating.

CONCLUSION

After completing hand therapy with a dynamic stabilization approach, clients had less pain and disability. Those who had unilateral thumb pain, or those who started with higher pain levels were most likely to have clinically meaningful improvements in pain. Clients in early CMC osteoarthritis (OA) stages responded better than those in later stages, indicating that early referral to therapy is important.

The biomechanics of osteoarthritis in the hand: Implications and prospects for hand therapy

BACKGROUND

The unique anatomy of the human hand makes it possible to carefully manipulate tools, powerfully grasp objects, and even throw items with precision. These apparent contradictory functions of the hand, high mobility for manual dexterity vs high stability during forceful grasping, imply that daily activities impose a high strain on a relatively instable joint. This makes the hand susceptible to joint disorders such as osteoarthritis. Both systemic (eg, genetics, hormones) and mechanical factors (eg, joint loading) are important in the development of osteoarthritis, but the precise pathomechanism remains largely unknown. This paper focuses on the biomechanical factors in the disease process and how hand therapists can use this knowledge to improve treatment and research.

CONCLUSION

Multiple factors are involved in the onset and development of osteoarthritis in the hand. Comprehension of the biomechanics helps clinicians establish best practices for orthotics intervention, exercise, and joint protection programs even in de absence of clear evidence-based guidelines. The effect and reach of hand therapy for OA patients can be expanded substantially when intervention parameters are optimized and barriers to early referrals, access reimbursement, and adherence are addressed. Close and early collaboration between hand therapists and primary care, women's health, rheumatology, and hand surgery providers upon diagnosis, and with hand surgeons pre and postoperatively, combined with advances in the supporting science and strategies to enhance adherence, appear to be a promising way forward.

Dynamic stabilization of the painful thumb: A historical and evidence-informed synthesis

STUDY DESIGN

Expert opinion INTRODUCTION: Thumb carpometacarpal joint (CMC) osteoarthritis is a common condition seen in the hand therapy clinic. Prevalence is generally higher in females, and the percentage rises for post-menopausal females. Patients typically present with pain and functional difficulties. Conservative management is recommended before a surgical consult. Evidence is mounting that a dynamic stability modeled approach has a significant effect on pain and improving function.

PURPOSE

The purpose of this paper is two-fold: first, to present the history and development of a dynamic stabilization model for treatment of the patient with thumb CMC osteoarthritis (OA), and second, to provide expert clinical commentary and recommendations for the treatment of thumb CMC OA in light of the best available evidence.

METHODS

Expert clinical commentary is based on an extensive review of relevant literature.

RESULTS

The current literature and expert opinion supports an evidence-informed multimodal intervention: modalities, pain relief techniques, manual release, joint mobilizations as deemed necessary, neuromuscular re-education through proprioceptive exercises, and education in joint protection principles.

CONCLUSION

A rationale for a dynamic stabilization approach is presented. The unique anatomy of the thumb deserves finely tuned care based on high quality research. To advance our knowledge and clinical skills we must not become stagnant, but continue to generate high level evidence. The standard for future thumb CMC OA studies should be well-defined intervention parameters, consistent documentation, and the use of appropriate patient-rated outcome measures.