Comparison of splinting, splinting plus local steroid injection and open carpal tunnel release outcomes in idiopathic carpal tunnel syndrome

Can ultrasound-guided steroid injection lead to an improvement in the symptoms of pregnancy-related carpal tunnel syndrome? With splint or alone?

BackgroundPregnancy-related carpal tunnel syndrome (PRCTS) is the most common mononeuropathy during pregnancy.Objectiveto compare the efficacy of ultrasound (US)-guided steroid injection alone versus wiht splinting on symptom severity on PRCTS.MethodsThis retrospective cohort study included 37 pregnant women in their third trimester with PRCTS, treated with ultrasound-guided steroid injection of 4 mg dexamethasone into the median nerve (Group I, n = 15), volar splinting in a neutral position while sleeping and during the day whenever possible for at least ten weeks (Group S, n = 12), or both injection and splinting (Group I + S, n = 10). Patient data were collected from hospital records, and symptoms were assessed using the Boston Carpal Tunnel Symptom Questionnaire (BCTQ), the Douleur Neuropathique 4 (DN4) and the Numeric Rating Scale (NRS). Statistical analyses included Student's t-test, Mann-Whitney U test, Fisher's exact test, ANOVA, Kruskal-Wallis test, descriptive analyses, and power analyses.ResultsDuring the first month of intervention, group S had higher BCTQ scores than the other two groups (p < 0.001). In the postpartum period, the order of scores was Group S > Group I > Group I + S (p < 0.001). The effect size was significant with Partial eta squared = 0.369.ConclusionThe combination of splinting and injection seems to be more effective in the short term period. But still, to validate our findings, Additional randomized controlled trials are recommended.

Surgical versus non-surgical treatment for carpal tunnel syndrome

BACKGROUND

Carpal tunnel syndrome (CTS) is a compression neuropathy of the median nerve at the wrist. Surgery is considered when symptoms persist despite the use of non-surgical treatments. It is unclear whether surgery produces a better outcome than non-surgical therapy. This is an update of a Cochrane review published in 2008.

OBJECTIVES

To assess the evidence regarding the benefits and harms of carpal tunnel release compared with non-surgical treatment in the short (< 3 months) and long (> 3 months) term.

SEARCH METHODS

In this update, we included studies from the previous version of this review and searched the Cochrane Neuromuscular Specialised Register, CENTRAL, Embase, MEDLINE, ClinicalTrials.gov and WHO ICTRP until 18 November 2022. We also checked the reference lists of included studies and relevant systematic reviews for studies.

SELECTION CRITERIA

We included randomised controlled trials comparing any surgical technique with any non-surgical therapies for CTS.

DATA COLLECTION AND ANALYSIS

We used the standard methodological procedures expected by Cochrane.

MAIN RESULTS

The 14 included studies randomised 1231 participants (1293 wrists). Eighty-four per cent of participants were women. The mean age ranged from 32 to 53 years, and the mean duration of symptoms from 31 weeks to 3.5 years. Trial sizes varied from 22 to 176 participants. The studies compared surgery with: splinting, corticosteroid injection, splinting and corticosteroid injection, platelet-rich plasma injection, manual therapy, multimodal non-operative treatment, unspecified medical treatment and hand support, and surgery and corticosteroid injection with corticosteroid injection alone. Since surgery is generally used for its long-term effects, this abstract presents only long-term results for surgery versus splinting and surgery versus corticosteroid injection. 1) Surgery compared to splinting in the long term (> 3 months) Surgery probably results in a higher rate of clinical improvement (risk ratio (RR) 2.10, 95% confidence interval (CI) 1.04 to 4.24; 3 studies, 210 participants; moderate-certainty evidence). Surgery probably does not provide clinically important benefit in symptoms or hand function compared with splinting (moderate-certainty evidence). The mean Boston Carpal Tunnel Questionnaire (BCTQ) Symptom Severity Scale (scale 1 to 5; higher is worse; minimal clinically important difference (MCID) = 1) was 1.54 with splint and 0.26 points better with surgery (95% CI 0.52 better to 0.01 worse; 2 studies, 195 participants). The mean BCTQ Functional Status Scale (scale 1 to 5; higher is worse; MCID 0.7) was 1.75 with splint and 0.36 points better with surgery (95% CI 0.62 better to 0.09 better; 2 studies, 195 participants). None of the studies reported pain. Surgery may not provide better health-related quality of life compared with splinting (low-certainty evidence). The mean EQ-5D index (scale 0 to 1; higher is better; MCID 0.074) was 0.81 with splinting and 0.04 points better with surgery (95% CI 0.0 to 0.08 better; 1 study, 167 participants). We are uncertain about the risk of adverse effects (very low-certainty evidence). Adverse effects were reported amongst 60 of 98 participants (61%) in the surgery group and 46 of 112 participants (41%) in the splinting group (RR 2.11, 95% CI 0.37 to 12.12; 2 studies, 210 participants). Surgery probably reduces the risk of further surgery; 41 of 93 participants (44%) were referred to surgery in the splinting group and 0 of 83 participants (0%) repeated surgery in the surgery group (RR 0.03, 95% CI 0.00 to 0.21; 2 studies, 176 participants). This corresponds to a number needed to treat for an additional beneficial outcome (NNTB) of 2 (95% CI 1 to 9). 2) Surgery compared to corticosteroid injection in the long term (> 3 months) We are uncertain if clinical improvement or symptom relief differs between surgery and corticosteroid injection (very low-certainty evidence). The RR for clinical improvement was 1.23 (95% CI 0.73 to 2.06; 3 studies, 187 participants). For symptoms, the standardised mean difference (SMD) was -0.60 (95% CI -1.88 to 0.69; 2 studies, 118 participants). This translates to 0.4 points better (95% CI from 1.3 better to 0.5 worse) on the BCTQ Symptom Severity Scale. Hand function or pain probably do not differ between surgery and corticosteroid injection (moderate-certainty evidence). For function, the SMD was -0.12 (95% CI -0.80 to 0.56; 2 studies, 191 participants) translating to 0.10 points better (95% CI 0.66 better to 0.46 worse) on the BCTQ Functional Status Scale with surgery. Pain (0 to 100 scale) was 8 points with corticosteroid injection and 6 points better (95% CI 10.45 better to 1.55 better; 1 study, 123 participants) with surgery. We found no data to estimate the difference in health-related quality of life (very low-certainty evidence). We are uncertain about the risk of adverse effects and further surgery (very low-certainty evidence). Adverse effects were reported amongst 3 of 45 participants (7%) in the surgery group and 2 of 45 participants (4%) in the corticosteroid injection group (RR 1.49, 95% CI 0.25 to 8.70; 2 studies, 90 participants). In one study, 12 of 83 participants (15%) needed surgery in the corticosteroid group, and 7 of 80 participants (9%) needed repeated surgery in the surgery group (RR 0.61, 95% CI 0.25 to 1.46; 1 study, 163 participants).

AUTHORS' CONCLUSIONS

Currently, the efficacy of surgery in people with CTS is unclear. It is also unclear if the results can be applied to people who are not satisfied after trying various non-surgical options. Future studies should preferably blind participants from treatment allocation and randomise people who are dissatisfied after being treated non-surgically. The decision for a patient to opt for surgery should balance the small benefits and potential risks of surgery. Patients with severe symptoms, a high preference for clinical improvement and reluctance to adhere to non-surgical options, and who do not consider potential surgical risks and morbidity a burden, may choose surgery. On the other hand, those who have tolerable symptoms, who have not tried non-surgical options and who want to avoid surgery-related morbidity can start with non-surgical options and have surgery only if necessary. We are uncertain if the risk of adverse effects differs between surgery and non-surgical treatments. The severity of adverse effects may also be different.

Splinting for carpal tunnel syndrome

BACKGROUND

Carpal tunnel syndrome (CTS) is a compression neuropathy of the median nerve causing pain and numbness and tingling typically in the thumb, index and middle finger. It sometimes results in muscle wasting, diminished sensitivity and loss of dexterity. Splinting the wrist (with or without the hand) using an orthosis is usually offered to people with mild-to-moderate findings, but its effectiveness remains unclear.

OBJECTIVES

To assess the effects (benefits and harms) of splinting for people with CTS.

SEARCH METHODS

On 12 December 2021, we searched the Cochrane Neuromuscular Specialised Register, CENTRAL, MEDLINE, Embase, AMED, CINAHL, ClinicalTrials.gov, and WHO ICTRP with no limitations. We checked the reference lists of included studies and relevant systematic reviews for studies.

SELECTION CRITERIA

Randomised trials were included if the effect of splinting could be isolated from other treatment modalities. The comparisons included splinting versus no active treatment (or placebo), splinting versus another disease-modifying non-surgical treatment, and comparisons of different splint-wearing regimens. We excluded studies comparing splinting with surgery or one splint design with another. We excluded participants if they had previously undergone surgical release.

DATA COLLECTION AND ANALYSIS

Review authors independently selected trials for inclusion, extracted data, assessed study risk of bias and the certainty in the body of evidence for primary outcomes using the GRADE approach, according to standard Cochrane methodology.

MAIN RESULTS

We included 29 trials randomising 1937 adults with CTS. The trials ranged from 21 to 234 participants, with mean ages between 42 and 60 years. The mean duration of CTS symptoms was seven weeks to five years. Eight studies with 523 hands compared splinting with no active intervention (no treatment, sham-kinesiology tape or sham-laser); 20 studies compared splinting (or splinting delivered along with another non-surgical intervention) with another non-surgical intervention; and three studies compared different splinting regimens (e.g. night-time only versus full time). Trials were generally at high risk of bias for one or more domains, including lack of blinding (all included studies) and lack of information about randomisation or allocation concealment in 23 studies. For the primary comparison, splinting compared to no active treatment, splinting may provide little or no benefits in symptoms in the short term (< 3 months). The mean Boston Carpal Tunnel Questionnaire (BCTQ) Symptom Severity Scale (SSS) (scale 1 to 5, higher is worse; minimal clinically important difference (MCID) 1 point) was 0.37 points better with splint (95% confidence interval (CI) 0.82 better to 0.08 worse; 6 studies, 306 participants; low-certainty evidence) compared with no active treatment. Removing studies with high or unclear risk of bias due to lack of randomisation or allocation concealment supported our conclusion of no important effect (mean difference (MD) 0.01 points worse with splint; 95% CI 0.20 better to 0.22 worse; 3 studies, 124 participants). In the long term (> 3 months), we are uncertain about the effect of splinting on symptoms (mean BCTQ SSS 0.64 better with splinting; 95% CI 1.2 better to 0.08 better; 2 studies, 144 participants; very low-certainty evidence). Splinting probably does not improve hand function in the short term and may not improve hand function in the long term. In the short term, the mean BCTQ Functional Status Scale (FSS) (1 to 5, higher is worse; MCID 0.7 points) was 0.24 points better (95% CI 0.44 better to 0.03 better; 6 studies, 306 participants; moderate-certainty evidence) with splinting compared with no active treatment. In the long term, the mean BCTQ FSS was 0.25 points better (95% CI 0.68 better to 0.18 worse; 1 study, 34 participants; low-certainty evidence) with splinting compared with no active treatment. Night-time splinting may result in a higher rate of overall improvement in the short term (risk ratio (RR) 3.86, 95% CI 2.29 to 6.51; 1 study, 80 participants; number needed to treat for an additional beneficial outcome (NNTB) 2, 95% CI 2 to 2; low-certainty evidence).  We are uncertain if splinting decreases referral to surgery, RR 0.47 (95% CI 0.14 to 1.58; 3 studies, 243 participants; very low-certainty evidence).  None of the trials reported health-related quality of life. Low-certainty evidence from one study suggests that splinting may have a higher rate of adverse events, which were transient, but the 95% CIs included no effect. Seven of 40 participants (18%) reported adverse effects in the splinting group and 0 of 40 participants (0%) in the no active treatment group (RR 15.0, 95% CI 0.89 to 254.13; 1 study, 80 participants).  There was low- to moderate-certainty evidence for the other comparisons: splinting may not provide additional benefits in symptoms or hand function when given together with corticosteroid injection (moderate-certainty evidence) or with rehabilitation (low-certainty evidence); nor when compared with corticosteroid (injection or oral; low certainty), exercises (low certainty), kinesiology taping (low certainty), rigid taping (low certainty), platelet-rich plasma (moderate certainty), or extracorporeal shock wave treatment (moderate certainty). Splinting for 12 weeks may not be better than six weeks, but six months of splinting may be better than six weeks of splinting in improving symptoms and function (low-certainty evidence).

AUTHORS' CONCLUSIONS

There is insufficient evidence to conclude whether splinting benefits people with CTS. Limited evidence does not exclude small improvements in CTS symptoms and hand function, but they may not be clinically important, and the clinical relevance of small differences with splinting is unclear. Low-certainty evidence suggests that people may have a greater chance of experiencing overall improvement with night-time splints than no treatment. As splinting is a relatively inexpensive intervention with no plausible long-term harms, small effects could justify its use, particularly when patients are not interested in having surgery or injections. It is unclear if a splint is optimally worn full time or at night-time only and whether long-term use is better than short-term use, but low-certainty evidence suggests that the benefits may manifest in the long term.

Local corticosteroid injection versus placebo for carpal tunnel syndrome

BACKGROUND

Carpal tunnel syndrome (CTS) is a very common clinical syndrome manifested by signs and symptoms of irritation of the median nerve at the carpal tunnel in the wrist. Direct and indirect costs of CTS are substantial, with estimated costs of two billion US dollars for CTS surgery in the USA in 1995 alone. Local corticosteroid injection has been used as a non-surgical treatment for CTS many years, but its effectiveness is still debated.

OBJECTIVES

To evaluate the benefits and harms of corticosteroids injected in or around the carpal tunnel for the treatment of carpal tunnel syndrome compared to no treatment or a placebo injection.

SEARCH METHODS

We used standard, extensive Cochrane search Methods. The searches were 7 June 2020 and 26 May 2022.

SELECTION CRITERIA

We included randomised controlled trials (RCTs) or quasi-randomised trials of adults with CTS that included at least one comparison group of local injection of corticosteroid (LCI) into the wrist and one group that received a placebo or no treatment.

DATA COLLECTION AND ANALYSIS

We used standard Cochrane methods. Our primary outcome was 1. improvement in symptoms at up to three months of follow-up. Our secondary outcomes were 2. functional improvement, 3. improvement in symptoms at greater than three months of follow-up, 4. improvement in neurophysiological parameters, 5. improvement in imaging parameters, 6. requirement for carpal tunnel surgery, 7. improvement in quality of life and 8.

ADVERSE EVENTS

We used GRADE to assess the certainty of evidence for each outcome.

MAIN RESULTS

We included 14 trials with 994 participants/hands with CTS. Only nine studies (639 participants/hands) had useable data quantitatively and in general, these studies were at low risk of bias except for one quite high-risk study. The trials were conducted in hospital-based clinics across North America, Europe, Asia and the Middle East. All trials used participant-reported outcome measures for symptoms, function and quality of life. There is probably an improvement in symptoms measured at up to three months of follow-up favouring LCI (standardised mean difference (SMD) -0.77, 95% confidence interval (CI) -0.94 to -0.59; 8 RCTs, 579 participants; moderate-certainty evidence). Up to six months this was still evident favouring LCI (SMD -0.58, 95% CI -0.89 to -0.28; 4 RCTs, 234 participants/hands; moderate-certainty evidence). There is probably an improvement in function measured at up to three months favouring LCI (SMD -0.62, 95% CI -0.87 to -0.38; 7 RCTs, 499 participants; moderate-certainty evidence). We are uncertain if there is a difference in median nerve DML at up to three months of follow-up (mean difference (MD) -0.37 ms, 95% CI -0.75 to 0.02; 6 RCTs, 359 participants/hands; very low-certainty evidence). The requirement for surgery probably reduces slightly in the LCI group at one year (risk ratio 0.84, 95% CI 0.72 to 0.98; 1 RCT, 111 participants, moderate-certainty evidence). Quality of life, measured at up to three months of follow-up using the Short-Form 6 Dimensions questionnaire (scale from 0.29 to 1.0; higher is better) probably improved slightly in the LCI group (MD 0.07, 95% CI 0.02 to 0.12; 1 RCT, 111 participants; moderate-certainty evidence). Adverse events were uncommon (low-certainty evidence). One study reported 2/364 injections resulted in severe pain which resolved over "several weeks" and 1/364 injections caused a "sympathetic reaction" with a cool, pale hand that completely resolved in 20 minutes. One study (111 participants) reported no serious adverse events, but 65% of LCI-injected and 16% of the placebo-injected participants experienced mild-to-moderate pain lasting less than two weeks. About 9% of participants experienced localised swelling lasting less than two weeks. Four studies (229 participants) reported that they experienced no adverse events in their studies. Three studies (220 participants) did not specifically report adverse events.

AUTHORS' CONCLUSIONS

Local corticosteroid injection is effective for the treatment of mild and moderate CTS with benefits lasting up to six months and a reduced need for surgery up to 12 months. Where serious adverse events were reported, they were rare.

The effectiveness of corticosteroid injection versus night splints for carpal tunnel syndrome: 24-month follow-up of a randomized trial

OBJECTIVES

This follow-up study of the INSTinCTS (INjection vs SplinTing in Carpal Tunnel Syndrome) trial compared the effects of corticosteroid injection (CSI) and night splinting (NS) for the initial management of mild-to-moderate CTS on symptoms, resource use and carpal tunnel surgery, over 24 months.

METHODS

Adults with mild-to-moderate CTS were randomized 1:1 to a local corticosteroid injection or a night splint worn for 6 weeks. Outcomes at 12 and 24 months included the Boston Carpal Tunnel Questionnaire (BCTQ), hand/wrist pain intensity numeric rating scale (NRS), the number of patients referred for and undergoing CTS surgery, and healthcare utilization. A cost-utility analysis was conducted.

RESULTS

One hundred and sixteen participants received a CSI and 118 a NS. The response rate at 24 months was 73% in the CSI arm and 71% in the NS arm. By 24 months, a greater proportion of the CSI group had been referred for (28% vs 20%) and undergone (22% vs 16%) CTS surgery compared with the NS group. There were no statistically significant between-group differences in BCTQ score or pain NRS at 12 or 24 months. CSI was more costly [mean difference £68.59 (95% CI: -120.84, 291.24)] with fewer quality-adjusted life-years than NS over 24 months [mean difference -0.022 (95% CI: -0.093, 0.045)].

CONCLUSION

Over 24 months, surgical intervention rates were low in both groups, but less frequent in the NS group. While there were no differences in the clinical effectiveness of CSI and NS, initial treatment with CSI may not be cost-effective in the long-term compared with NS.

Ultrasound-guided percutaneous release procedures in the transverse carpal ligament by acupotomy: A cadaveric study

Objective

This study aimed to determine the safety and accuracy of ultrasound-guided acupotomy percutaneous loosening of the transverse carpal ligament.

Methods

The 100 upper limb specimens were equally divided into the ultrasound-guided acupotomy group (U) and the nonultrasound-guided acupotomy group (N). For the U group, we simulated ultrasound-guided acupotomy loosening of the transverse carpal ligament in a human specimen, and for the N group, we performed the loosening of the transverse carpal ligament through the same approach under nonultrasound-guided conditions. The safety and accuracy of the two methods were compared through measurement.

Results

In the ultrasound-guided group, the injury rate of nerves, blood vessels and tendons caused by needle-knife release was 0%. In the non-ultrasound-guided group, the rate of nerve, blood vessel and tendon damage was 6 percent, 12 percent and 20 percent, respectively. χ ² test (Fisher exact test) was performed for the nerve and blood vessel damage rates in the two groups (P_N  > 0.05, P_A  < 0.05), the difference in nerve damage rates was not statistically significant, but the difference in blood vessel damage rates was statistically significant. Pearson's χ ² test was performed on the tendon injury rates of the two groups (P_F  < 0.05), and the difference was statistically significant. In the ultrasound-guided group, the proportion of acupotomy marks greater than or equal to half of the width of the transverse carpal ligament was 86%, and the non-ultrasound-guided group was 36%. The accuracy of the two surgical methods was tested by Pearson's χ ² test (P_L  < 0.05), and the difference was statistically significant. According to the measurement, the ultrasound-guided acupotomy technology had high safety and accuracy.

Conclusion

In this study, we designed a new method for cutting the transverse carpal ligament under ultrasound guidance, which is different from surgery. These results indicate that this is a safe and accurate method of interventional treatment of carpal tunnel syndrome.

Benefits and Harms of Interventions With Surgery Compared to Interventions Without Surgery for Musculoskeletal Conditions: A Systematic Review With Meta-analysis

OBJECTIVE

To estimate the benefits and harms of interventions with and without surgery for musculoskeletal (MSK) conditions.

DESIGN

Intervention systematic review with meta-analysis of randomized controlled trials (RCTs).

LITERATURE SEARCH

MEDLINE, EMBASE, CINAHL, Web of Science, and CENTRAL, all up to January 7, 2021.

STUDY SELECTION CRITERIA

RCTs (English, German, Danish, Swedish, and Norwegian) of interventions with and without surgery conducted in any setting for any non-fracture MSK condition in adults (mean age: 18+ years) evaluating the outcomes on a continuous (benefits) or count (harms) scale. Outcomes were pain, self-reported physical function, quality of life, serious adverse events (SAEs), and death at 1 year.

DATA SYNTHESIS

Random-effects metaanalyses for MSK conditions where there were data from at least 2 trials.

RESULTS

One hundred RCTs (n = 12 645 patients) across 28 different conditions at 9 body sites were included. For 9 out of 13 conditions with data on pain (exceptions include some spine conditions), 11 out of 11 for function, and 9 out of 9 for quality of life, there were no clinically relevant differences (standardized mean difference of 0.50 or above) between interventions with and without surgery. For 13 out of 16 conditions with data on SAEs and 16 out of 16 for death, there were no differences in harms. Only 6 trials were at low risk of bias.

CONCLUSION

The low certainty of evidence does not support recommending surgery over nonsurgical alternatives for most MSK conditions with available RCTs. Further high-quality RCTs may change this conclusion. J Orthop Sports Phys Ther 2022;52(6):312-344. doi:10.2519/jospt.2022.11075.

Conservative or surgical treatment of carpal tunnel syndrome based on the severity and patient risk factors

BACKGROUND

The carpal tunnel syndrome (CTS) is the most common median nerve compression disease which may result in impaired nerve function. This study was carried out to determine which treatment is more appropriate for moderate or severe CTS patients with or without risk factors.

MATERIALS AND METHODS

In a cohort prospective study, the patients with moderate CTS received a conservative treatment including night splint for 3 months, one methyl prednisolone injection whereas patients with severe CTS underwent surgical release. They were followed for 1 year using the bland scale based on the electromyography and nerve conduction velocity studies and five-point global assessment outcome scale.

RESULTS

Totally, 68 moderate CTS cases (32 patients with risk factors and 36 without any risk factors) and 32 cases with severe CTS (16 patients with risk factors and 16 without any risk factors) were assess at 6 months and 1 year following the treatment. Although about 22% of moderate CTS patients with risk factors changed to mild CTS after 6 months of conservative treatment, about 75% showed mild CTS or complete remedy following 1 year (P value < 0.001). This result was about 30% at 6 months and about 95% at 1 year following conservative treatment in patients with moderate CTS without risk factors. None of moderate CTS patients with or without risk factors underwent surgery after 1 year of follow-up. Although almost all patients with severe CTS, with and without risk factors, showed complete recovery or changed to mild CTS at 1 year postoperatively, the result was statistically significant for cases without risk factors (P value = 0.002).

CONCLUSION

Conservative treatment for moderate CTS would be a good option, and the final result may be seen 1 year later; however, its positive effect is quicker and better for moderate CTS cases without risk factors. Surgical release of the carpal tunnel may be the best choice not only for severe CTS cases with risk factors but also for cases without risk factors. For obtaining consistent rapid result, it is recommended to do surgical release for all cases of moderate or severe CTS without considering risk factors, but more clinical researches are needed.

LEVEL OF EVIDENCE

II.

Sensory Nerve Conduction Velocity Predicts Improvement of Hand Function with Nerve Gliding Exercise Following Carpal Tunnel Release Surgery

This study aims to investigate the effects of nerve gliding exercise following carpal tunnel release surgery (NGE-CTRS) and the probing factors affecting the effect of NGE-CTRS on hand function. A total of 86 patients after CTRS participated. Grip strength (grip-s), pinch strength (pinch-s), Semmes-Weinstein monofilament test (SWMT), two-point discrimination (2PD), numbness, pain, and Phalen test (Phalen) were measured and compared between pre- and post-NGE-CTRS. The results showed that the combination of surgery and NGE significantly improved the postoperative grip-s, pinch-s, SWMT, 2PD, numbness, and Phalen; however, no improvement was observed in pain. Background factors that influenced the improved grip-s and pinch-s included gender and preoperative sensory nerve conduction velocity (SCV). Additionally, numbness and Phalen were not affected by age, gender, fault side, bilateral, trigger finger, dialysis, thenar eminence atrophy, motor nerve conduction velocity, SCV, the start of treatment, and occupational therapy intervention. In conclusion, the combination of surgical procedures and NGE showed a high improvement. SCV and time-to-start treatment of intervention for carpal tunnel syndrome may be useful in predicting the function after the intervention.

Does diabetes mellitus change the carpal tunnel release outcomes? Evidence from a systematic review and meta-analysis

STUDY DESIGN

A systematic review and meta-analysis.

INTRODUCTION

Carpal tunnel syndrome (CTS) is one of the most common upper extremity conditions which mostly affect women. Management of patients suffering from both CTS and diabetes mellitus (DM) is challenging, and it was suggested that DM might affect the diagnosis as well as the outcome of surgical treatment.

PURPOSE OF THE STUDY

This meta-analysis was aimed to compare the response with CTS surgical treatment in diabetic and nondiabetic patients.

METHODS

Electronic databases were searched to identify eligible studies comparing the symptomatic, functional, and neurophysiological outcomes between diabetic and nondiabetic patients with CTS. Pooled MDs with 95% CIs were applied to assess the level of outcome improvements.

RESULTS

Ten articles with 2869 subjects were included. The sensory conduction velocities in the wrist-palm and wrist-middle finger segments showed a significantly better improvement in nondiabetic compared with diabetic patients (MD = -4.31, 95% CI = -5.89 to -2.74, P < .001 and MD = -2.74, 95% CI = -5.32 to -0.16, P = .037, respectively). However, no significant differences were found for the improvement of symptoms severity and functional status based on the Boston Carpal Tunnel Questionnaire and Quick Disabilities of the Arm, Shoulder, and Hand questionnaire as well as motor conduction velocities and distal motor latencies.

CONCLUSION

Metaresults revealed no significant difference in improvements of all various outcomes except sensory conduction velocities after CTS surgery between diabetic and nondiabetic patients. A better diabetic neuropathy care is recommended to achieve better sensory recovery after CTS surgery in diabetic patients.

Comparison of the Short-Term and Long-Term Effects of Surgery and Nonsurgical Intervention in Treating Carpal Tunnel Syndrome: A Systematic Review and Meta-Analysis

Background: The objective of the study is to examine the short-term and long-term efficacy of surgical treatment of carpal tunnel syndrome (CTS) compared with conservative treatment (ie, splint, steroid injection, or physical therapy). Methods: Two reviewers searched the Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE, and PEDro up to September 2017. Quality appraisal and data extraction were performed in duplicate. Patient self-reported functional and symptom changes, as well as improvement of electrophysiological studies, were assessed as outcomes. Meta-analyses were performed in RevMan. Results: From 1438 studies identified after searching, 10 remained for analysis after exclusion criteria were applied. Moderate-quality evidence indicated that surgical interventions were superior to splint or steroid injection at 6 months with a weighted mean difference of 0.25 (95% confidence interval [CI], 0.07-0.44) for functional status and 0.64 (95% CI, 0.07-1.21) for symptom severity. The surgical group had better nerve conduction outcomes at 6 months (0.57 [95% CI, 0.05-0.50] ms). No significant differences were observed at 3 or 12 months. Conclusions: Both surgical and conservative interventions provide treatment benefits in CTS. Further studies on long-term outcome are needed.

Hand Pain and Sensory Deficits: Carpal Tunnel Syndrome

The Academy of Orthopaedic Physical Therapy and the Academy of Hand and Upper Extremity Physical Therapy have an ongoing effort to create evidence-based clinical practice guidelines (CPGs) for orthopaedic and sports physical therapy management and prevention of musculoskeletal impairments described in the World Health Organization's International Classification of Functioning, Disability and Health (ICF). This particular guideline focuses on hand pain and sensory deficits in carpal tunnel syndrome. J Orthop Sports Phys Ther 2019;49(5):CPG1-CPG85. doi:10.2519/jospt.2019.0301.

Effectiveness of surgical versus conservative treatment for carpal tunnel syndrome: A systematic review, meta-analysis and qualitative analysis

Background

Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy of the upper limb. Treatment options include physiotherapy, splinting, steroid injections or surgery.

Objective

To compare the effectiveness of surgical versus conservative treatment for CTS for symptom and functional improvement and improvement of neurophysiological parameters.

Methods

Systematic searches of PubMed and EBSCO host were conducted to identify the studies published between 1990 and 2016, comparing any surgical treatment to any conservative treatment. Participants were adults with a diagnosis of CTS, with symptom duration ranging from 8 months to 3 years. A meta-analysis and a qualitative analysis were conducted to summarize the results of the included studies and establish any agreement between the two.

Results

A total of 15 studies were included in the study and 10 were included in the meta-analysis, involving 1787 wrists. The qualitative and quantitative analyses were consistent with the results of both indicating that surgical treatment leads to a greater improvement of symptoms at six months (mean difference: 0.52, 95%CI 0.27 to 0.78) and a greater improvement of neurophysiological parameters [distal motor latency (mean difference: 0.31, 95%CI 0.06 to 0.56), sensory nerve conduction velocity (mean difference: 3.71 m/s, 95%CI 1.94 to 5.49)]. At 3 months and 12 months, the results were not significant in favor of surgery or conservative treatment.

Conclusion

Conservative treatment for CTS should be preferred for mild and short-term CTS. Surgery is more effective than conservative in CTS, and should be considered in persisting symptoms, taking into account the complications, which are more severe after surgery. Further research should focus on the field of manual therapy and compare it to surgical treatment for CTS.

The clinical and cost-effectiveness of corticosteroid injection versus night splints for carpal tunnel syndrome (INSTINCTS trial): an open-label, parallel group, randomised controlled trial

BACKGROUND

To our knowledge, the comparative effectiveness of commonly used conservative treatments for carpal tunnel syndrome has not been evaluated previously in primary care. We aimed to compare the clinical and cost-effectiveness of night splints with a corticosteroid injection with regards to reducing symptoms and improving hand function in patients with mild or moderate carpal tunnel syndrome.

METHODS

We did this randomised, open-label, pragmatic trial in adults (≥18 years) with mild or moderate carpal tunnel syndrome recruited from 25 primary and community musculoskeletal clinics and services. Patients with a new episode of idiopathic mild or moderate carpal tunnel syndrome of at least 6 weeks' duration were eligible. We randomly assigned (1:1) patients (permutated blocks of two and four by site) with an online web or third party telephone service to receive either a single injection of 20 mg methylprednisolone acetate (from 40 mg/mL) or a night-resting splint to be worn for 6 weeks. Patients and clinicians could not be masked to the intervention. The primary outcome was the overall score of the Boston Carpal Tunnel Questionnaire (BCTQ) at 6 weeks. We used intention-to-treat analysis, with multiple imputation for missing data, which was concealed to treatment group allocation. The trial is registered with the European Clinical Trials Database, number 2013-001435-48, and ClinicalTrial.gov, number NCT02038452.

FINDINGS

Between April 17, 2014, and Dec 31, 2016, 234 participants were randomly assigned (118 to the night splint group and 116 to the corticosteroid injection group), of whom 212 (91%) completed the BCTQ at 6 weeks. The BCTQ score was significantly better at 6 weeks in the corticosteroid injection group (mean 2·02 [SD 0·81]) than the night splint group (2·29 [0·75]; adjusted mean difference -0·32; 95% CI -0·48 to -0·16; p=0·0001). No adverse events were reported.

INTERPRETATION

A single corticosteroid injection shows superior clinical effectiveness at 6 weeks compared with night-resting splints, making it the treatment of choice for rapid symptom response in mild or moderate carpal tunnel syndrome presenting in primary care.

FUNDING

Arthritis Research UK.

Effectiveness of surgical versus conservative treatment for carpal tunnel syndrome: A systematic review, meta-analysis and qualitative analysis

Background

Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy of the upper limb. Treatment options include physiotherapy, splinting, steroid injections or surgery.

Objective

To compare the effectiveness of surgical versus conservative treatment for CTS for symptom and functional improvement and improvement of neurophysiological parameters.

Methods

Systematic searches of PubMed and EBSCO host were conducted to identify the studies published between 1990 and 2016, comparing any surgical treatment to any conservative treatment. Participants were adults with a diagnosis of CTS, with symptom duration ranging from 8 months to 3 years. A meta-analysis and a qualitative analysis were conducted to summarize the results of the included studies and establish any agreement between the two.

Results

A total of 15 studies were included in the study and 10 were included in the meta-analysis, involving 1787 wrists. The qualitative and quantitative analyses were consistent with the results of both indicating that surgical treatment leads to a greater improvement of symptoms at six months (mean difference: 0.52, 95%CI 0.27 to 0.78) and a greater improvement of neurophysiological parameters [distal motor latency (mean difference: 0.31, 95%CI 0.06 to 0.56), sensory nerve conduction velocity (mean difference: 3.71 m/s, 95%CI 1.94 to 5.49)]. At 3 months and 12 months, the results were not significant in favor of surgery or conservative treatment.

Conclusion

Conservative treatment for CTS should be preferred for mild and short-term CTS. Surgery is more effective than conservative in CTS, and should be considered in persisting symptoms, taking into account the complications, which are more severe after surgery. Further research should focus on the field of manual therapy and compare it to surgical treatment for CTS.

[Diagnostic nerve ultrasonography]

CLINICAL/METHODICAL ISSUE

For the diagnostics of nerve lesions an imaging method is necessary to visualize peripheral nerves and their surrounding structures for an etiological classification.

STANDARD RADIOLOGICAL METHODS

Clinical neurological and electrophysiological investigations provide functional information about nerve lesions. The information provided by a standard magnetic resonance imaging (MRI) examination is inadequate for peripheral nerve diagnostics; however, MRI neurography is suitable but on the other hand a resource and time-consuming method.

METHODICAL INNOVATIONS

Using ultrasonography for peripheral nerve diagnostics.

PERFORMANCE

With ultrasonography reliable diagnostics of entrapment neuropathies and traumatic nerve lesions are possible. The use of ultrasonography for neuropathies shows that a differentiation between different forms is possible.

ACHIEVEMENTS

Nerve ultrasonography is an established diagnostic tool. In addition to the clinical examination and clinical electrophysiology, structural information can be obtained, which results in a clear improvement in the diagnostics. Ultrasonography has become an integral part of the diagnostic work-up of peripheral nerve lesions in neurophysiological departments.

PRACTICAL RECOMMENDATIONS

Nerve ultrasonography is recommended for the diagnostic work-up of peripheral nerve lesions in addition to clinical and electrophysiological investigations. It should be used in the clinical work-up of entrapment neuropathies, traumatic nerve lesions and spacy-occupying lesions of nerves.

Effectiveness of Surgical and Postsurgical Interventions for Carpal Tunnel Syndrome-A Systematic Review

OBJECTIVE

To present an evidence-based overview of the effectiveness of surgical and postsurgical interventions for carpal tunnel syndrome (CTS).

DATA SOURCES

The Cochrane Library, PubMed, EMBASE, CINAHL, and PEDro were searched for relevant systematic reviews and randomized controlled trials (RCTs) up to April 8, 2016.

STUDY SELECTION

Two reviewers independently applied the inclusion criteria to select potential studies.

DATA EXTRACTION

Two reviewers independently extracted the data and assessed the methodologic quality.

DATA SYNTHESIS

A best-evidence synthesis was performed to summarize the results. Four systematic reviews and 33 RCTs were included. Surgery versus nonsurgical interventions, timing of surgery, and various surgical techniques and postoperative interventions were studied. Corticosteroid injection was more effective than surgery (strong evidence, short-term). Surgery was more effective than splinting or anti-inflammatory drugs plus hand therapy (moderate evidence, midterm and long-term). Manual therapy was more effective than surgical treatment (moderate evidence, short-term and midterm). Within surgery, corticosteroid irrigation of the median nerve before skin closure as additive to CTS release or the direct vision plus tunneling technique was more effective than standard open CTS release (moderate evidence, short-term). Furthermore, short was more effective than long bulky dressings, and a sensory retraining program was more effective than no program after surgery (moderate evidence, short-term). For all other interventions only conflicting, limited, or no evidence was found.

CONCLUSIONS

Surgical treatment seems to be more effective than splinting or anti-inflammatory drugs plus hand therapy in the short-term, midterm, and/or long-term to treat CTS. However there is strong evidence that a local corticosteroid injection is more effective than surgery in the short-term, and moderate evidence that manual therapy is more effective than surgery in the short-term and midterm. There is no unequivocal evidence that suggests one surgical treatment is more effective than the other. Postsurgical, a short- (2-3 days) favored a long-duration (9-14 days) bulky dressing and a sensory retraining program seems to be more effective than no program in short-term. More research regarding the optimal timing of surgery for CTS is needed.

Relaxin Modulates the Expression of MMPs and TIMPs in Fibroblasts of Patients with Carpal Tunnel Syndrome

PURPOSE

The aim of this study was to investigate the anti-fibrotic effect of relaxin in subsynovial fibroblasts activated by transforming growth factor beta (TGF-β).

MATERIALS AND METHODS

To test the anti-fibrotic effect of an adenovirus-relaxin construct (Ad-RLN) on subsynovial fibroblasts in vitro, cells from subsynovial connective tissue of patients with carpal tunnel syndrome were activated with TGF-β1 and exposed to Ad-RLN (as a therapeutic gene) or adenovirus-lacZ construct (as a marker gene) for four hours. Subsynovial fibroblast cultures without adenoviral exposure served as controls.

RESULTS

We observed induction of gene expressions of collagen I, III and IV, as well as the abatement of alpha-smooth muscle actin (a-SMA) synthesis, Smad2 phosphorylation, and fibronectin at the protein level, in comparison to controls. In addition, protein expressions of matrix metalloproteinase (MMP) I was significantly induced, whereas the protein expressions of tissue inhibitor of metalloproteinases (TIMP) I and IV were reduced due to relaxin expression.

CONCLUSION

RLN prevents excessive synthesis of extracellular matrix by reducing the expressions of its components, such as fibronectin, a-SMA, and phosphorylated Smad2, by increasing the expression of MMPs; and by decreasing the expression of TIMPs.

Nerve ultrasound in clinical management of carpal tunnel syndrome in mucopolysaccharidosis

AIM

Mucopolysaccharidoses (MPS) are a group of diseases with an almost 100% lifetime incidence of carpal tunnel syndrome (CTS) in MPSsubtypes I, II, and VI. We compared nerve ultrasound with clinical signs and electrophysiology in a clinical setting to screen for CTSin MPS.

METHOD

Twenty-four patients (13 male, 11 female, mean age of 7y 11mo [SD8y 5mo], range 6mo-29y) were screened for CTS. Eight of these patients were re-examined post-operatively. Clinical signs, distal motor latency, compound muscle action potential, sensory nerve action potential amplitude and velocity, as well as echogenicity and the cross-sectional area (CSA) of the median nerve at the wrist and forearm determined with ultrasound were assessed and the wrist to forearm ratio (WFR) calculated. Eighteen healthy participants formed a comparison group, who were also investigated with nerve ultrasound.

RESULTS

In 26% of the patients' hands, clinical signs of CTSwere present; 77% fulfilled electrophysiological and 92% nerve ultrasound criteria for CTS. Post-operatively, electrophysiology improved significantly, whereas ultrasound results were unchanged. In the comparison group, age and height correlated with the CSA, but not with WFR.

INTERPRETATION

Nerve ultrasound is a useful and painless primary screening tool for CTSin MPS.

The clinical and cost effectiveness of steroid injection compared with night splints for carpal tunnel syndrome: the INSTINCTS randomised clinical trial study protocol

BACKGROUND

Patients diagnosed with idiopathic mild to moderate carpal tunnel syndrome (CTS) are usually managed in primary care and commonly treated with night splints and/or corticosteroid injection. The comparative effectiveness of these interventions has not been reliably established nor investigated in the medium and long term. The primary objective of this trial is to investigate whether corticosteroid injection is effective in reducing symptoms and improving hand function in mild to moderate CTS over 6 weeks when compared with night splints. Secondary objectives are to determine specified comparative clinical outcomes and cost effectiveness of corticosteroid injection over 6 and 24 months.

METHOD/DESIGN

A multicentre, randomised, parallel group, clinical pragmatic trial will recruit 240 adults aged ≥18 years with mild to moderate CTS from GP Practices and Primary-Secondary Care Musculoskeletal Interface Clinics. Diagnosis will be by standardised clinical assessment. Participants will be randomised on an equal basis to receive either one injection of 20 mg Depo-Medrone or a night splint to be worn for 6 weeks. The primary outcome is the overall score of the Boston Carpal Tunnel Questionnaire (BCTQ) at 6 weeks. Secondary outcomes are the BCTQ symptom severity and function status subscales, symptom intensity, interrupted sleep, adherence to splinting, perceived benefit and satisfaction with treatment, work absence and reduction in work performance, EQ-5D-5L, referral to surgery and health utilisation costs. Participants will be assessed at baseline and followed up at 6 weeks, 6, 12 and 24 months. The primary analysis will use an intention to treat (ITT) approach and multiple imputation for missing data. The sample size was calculated to detect a 15 % greater improvement in the BTCQ overall score in the injection group compared to night-splinting at approximately 90 % power, 5 % two-tailed significance and allows for 15 % loss to follow-up.

DISCUSSION

The trial makes an important contribution to the evidence base available to support effective conservative management of CTS in primary care. No previous trials have directly compared these treatments for CTS in primary care populations, reported on clinical effectiveness at more than 6 months nor compared cost effectiveness of the interventions.

TRIAL REGISTRATION

Trial registration: EudraCT 2013-001435-48 (registered 05/06/2013), ClinicalTrials.gov NCT02038452 (registered 16/1/2014), and Current Controlled Trials ISRCTN09392969 (retrospectively registered 01/05/2014).

Efficacy, safety, and cost of surgical versus nonsurgical treatment for carpal tunnel syndrome: A systematic review and meta-analysis

BACKGROUND

Carpal tunnel syndrome (CTS) is a common peripheral nerve entrapment disease. Either surgical or conservative intervention for CTS patients is needed to choose. We conducted this systematic review and meta-analysis to compare the clinical efficacy, safety, and cost of surgical versus nonsurgical intervention.

METHODS

The eligible studies were acquired from PubMed, Medline, Embase, Web of Science, Google, and Cochrane Library. The data were extracted by 2 of the coauthors independently and were analyzed by RevMan5.3. Standardized mean differences (SMDs), odds ratios (ORs), and 95% confidence intervals (CIs) were calculated. Cochrane Collaboration Risk of Bias Tool and Newcastle-Ottawa Scale were used to assess risk of bias.

RESULTS

Thirteen studies including 9 randomized controlled trials (RCTs) and 4 observational studies were assessed. The methodological quality of the trials ranged from moderate to high. The difference of clinical efficacy was statistically significant between surgical and nonsurgical intervention, and nonsurgical treatment was more effective (OR = 2.35, 95%CI = 1.18-4.67, P = 0.01). Meanwhile, different results were discovered by subgroup analysis. The pooled results of function improvement, symptom improvement, neurophysiological parameters improvement, and cost of care at different follow-up times showed that the differences were not statistically significant between the 2 interventions. The difference of complications and side-effects was statistically significant and conservative treatment achieved better result than surgery (OR = 2.03, 95%CI = 1.28-3.22, P = 0.003). Sensitivity analysis proved the stability of the pooled results.

CONCLUSION

Both surgical and conservative interventions had benefits in CTS. Nonsurgical treatment was more effective and safety than surgical treatment, but there were no significant differences in function improvement, symptom improvement, neurophysiological parameters improvement, and cost of care. Nonsurgical treatment is recommended as the optical choice for CTS. If conservative treatment fails, surgical release can be taken.

Effectiveness of splinting and splinting plus local steroid injection in severe carpal tunnel syndrome: A Randomized control clinical trial

Background:

The Study aimed to compare the effectiveness of two commonly used conservative treatments, splinting and local steroid injection in improving clinical and nerve conduction findings of the patients with severe carpal tunnel syndrome (CTS).

Materials and Methods:

In this randomized control clinical trial, the patients with severe CTS selected and randomized in two interventional groups. Group A was prescribed to use full time neutral wrist splint and group B was injected with 40 mg Depo-Medrol and prescribed to use the full time neutral wrist splint for 12 weeks. Clinical and nerve conduction findings of the patients was evaluated at baseline, 4 and 12 weeks after interventions.

Results:

Twenty-two and 21 patients were allocated in group A and B, respectively. Mean of clinical symptoms and functional status scores, nerve conduction variables and patients’ satisfaction score were not significant between group at baseline and 4 and 12 weeks after intervention. Within the group comparison, there was significant improvement in the patients’ satisfaction, clinical and nerve conduction items between the baseline level and 4 weeks after intervention and between the baseline and 12 weeks after intervention (P < 0.01). The difference was significant for functional status score between 4 and 12 weeks after intervention in group B (P = 0.02).

Conclusion:

considering some findings regarding the superior effect of splinting plus local steroid injection on functional status scale and median nerve distal motor latency, it seems that using combination therapy could be more effective for long-term period specially in the field of functional improvement of CTS.

Intraindividual comparison between open and endoscopic release in bilateral carpal tunnel syndrome: a meta-analysis of randomized controlled trials

PURPOSE

This study evaluated functional outcomes and safety after endoscopic and open bilateral carpal tunnel syndrome release in opposite hands of the same patients through a meta-analysis of randomized controlled trial data.

MATERIALS AND METHODS

Randomized controlled trials involving both methods in opposite hands of patients with bilateral carpal tunnel syndrome were identified via a systematic review of PUBMED and EMBASE.

RESULTS

Relative risks (RRs) and 95% confidence intervals (CIs) from five randomized controlled trials involving 142 patients with bilateral carpal tunnel syndrome were calculated using fixed- or random-effect methods, with a length of follow-up from 24 to 52 weeks after surgery. Compared with open release, endoscopic carpal tunnel release was associated with significantly better Boston Carpal Tunnel Questionnaire functional status scores (mean difference [MD] = 0.13, 95% confidence interval [CI] [0.02 - 0.25]; P = 0.02), but not symptom severity scores (RR = 0.06, 95% CI [-0.15 to 0.04]; P = 0.25). Endoscopic release required a longer operative time, but the procedures did not differ significantly in visual analog scale pain scores (MD = 0.02, 95% CI [-0.08 to 0.11]; P = 0.75), handgrip strength (MD = 0.17, 95% CI [-2.03 to 2.37]; P = 0.88), digital sensibility static two-point discrimination (MD = 0.34, 95% CI [-0.03 to 0.70]; P = 0.07), or complication rates (MD = 0.01, 95% CI [-0.02 to 0.05], P = 0.47).

CONCLUSION

From intraindividual evidence, endoscopic release promoted better recovery of daily life functions than open release, but required a longer operative time. The procedures provided similar symptom relief and hand strength and sensibility recovery, and were safe for patients with carpal tunnel syndrome.

Manual Physical Therapy Versus Surgery for Carpal Tunnel Syndrome: A Randomized Parallel-Group Trial

This randomized clinical trial investigated the effectiveness of surgery compared with physical therapy consisting of manual therapies including desensitization maneuvers in carpal tunnel syndrome (CTS). The setting was a public hospital and 2 physical therapy practices in Madrid, Spain. One hundred twenty women with CTS were enrolled between February 2013 and January 2014, with 1-year follow-up completed in January 2015. Interventions consisted of 3 sessions of manual therapies including desensitization maneuvers of the central nervous system (physical therapy group, n = 60) or decompression/release of the carpal tunnel (surgical group, n = 60). The primary outcome was pain intensity (mean pain and the worst pain), and secondary outcomes included functional status and symptoms severity subscales of the Boston Carpal Tunnel Questionnaire and the self-perceived improvement. They were assessed at baseline and 1, 3, 6, and 12 months by a blinded assessor. Analysis was by intention to treat. At 12 months, 111 (92%) women completed the follow-up (55/60 physical therapy, 56/60 surgery). Adjusted analyses showed an advantage (all, P < .01) for physical therapy at 1 and 3 months in mean pain (Δ -2.0 [95% confidence interval (CI) -2.8 to -1.2]/-1.3 [95% CI -2.1 to -.6]), the worst pain (Δ -2.9 [-4.0 to -2.0]/-2.0 [-3.0 to -.9]), and function (Δ -.8 [-1.0 to -.6]/-.3 [-.5 to -.1]), respectively. Changes in pain and function were similar between the groups at 6 and 12 months. The 2 groups had similar improvements in the symptoms severity subscale of the Boston Carpal Tunnel Questionnaire at all follow-ups. In women with CTS, physical therapy may result in similar outcomes on pain and function to surgery.

TRIAL REGISTRATION

http://www.clinicaltrials.gov, ClinicalTrials.gov, NCT01789645.

PERSPECTIVE

This study found that surgery and physical manual therapies including desensitization maneuvers of the central nervous system were similarly effective at medium-term and long-term follow-ups for improving pain and function but that physical therapy led to better outcomes in the short term.

Using clinical practice variations as a method for commissioners and clinicians to identify and prioritise opportunities for disinvestment in health care: a cross-sectional study, systematic reviews and qualitative study

Background

NHS expenditure has stagnated since the economic crisis of 2007, resulting in financial pressures. One response is for policy-makers to regulate use of existing health-care technologies and disinvest from inefficiently used health technologies. A key challenge to disinvestment is to identify existing health technologies with uncertain cost-effectiveness.

Objectives

We aimed to explore if geographical variation in procedure rates is a marker of clinical uncertainty and might be used by local commissioners to identify procedures that are potential candidates for disinvestment. We also explore obstacles and solutions to local commissioners achieving disinvestment, and patient and clinician perspectives on regulating access to procedures.

Methods

We used Hospital Episode Statistics to measure geographical variation in procedure rates from 2007/8 to 2011/12. Expected procedure numbers for each primary care trust (PCT) were calculated adjusting for proxies of need. Random effects Poisson regression quantified the residual inter-PCT procedure rate variability. We benchmarked local procedure rates in two PCTs against national rates. We conducted rapid systematic reviews of two high-use procedures selected by the PCTs [carpal tunnel release (CTR) and laser capsulotomy], searching bibliographical databases to identify systematic reviews and randomised controlled trials (RCTs). We conducted non-participant overt observations of commissioning meetings and semistructured interviews with stakeholders about disinvestment in general and with clinicians and patients about one disinvestment case study. Transcripts were analysed thematically using constant comparison methods derived from grounded theory.

Results

There was large inter-PCT variability in procedure rates for many common NHS procedures. Variation in procedure rates was highest where the diffusion or discontinuance was rapidly evolving and where substitute procedures were available, suggesting that variation is a proxy for clinical uncertainty about appropriate use. In both PCTs we identified procedures where high local use might represent an opportunity for disinvestment. However, there were barriers to achieving disinvestment in both procedure case studies. RCTs comparing CTR with conservative care indicated that surgery was clinically effective and cost-effective on average but provided limited evidence on patient subgroups to inform commissioning criteria and achieve savings. We found no RCTs of laser capsulotomy. The apparently high rate of capsulotomy was probably due to the coding inaccuracy; some savings might be achieved by greater use of outpatient procedures. Commissioning meetings were dominated by new funding requests. Benchmarking did not appear to be routinely carried out because of capacity issues and concerns about data reliability. Perceived barriers to disinvestment included lack of collaboration, central support and tools for disinvestment. Clinicians felt threshold criteria had little impact on their practice and that prior approval systems would not be cost-effective. Most patients were unaware of rationing.

Conclusions

Policy-makers could use geographical variation as a starting point to identify procedures where health technology reassessment or RCTs might be needed to inform policy. Commissioners can use benchmarking to identify procedures with high local use, possibly indicating overtreatment. However, coding inconsistency and limited evidence are major barriers to achieving disinvestment through benchmarking. Increased central support for commissioners to tackle disinvestment is needed, including tools, accurate data and relevant evidence. Early engagement with patients and clinicians is essential for successful local disinvestment.

Funding

The National Institute for Health Research Health Services and Delivery Research programme.

Endoscopic versus open carpal tunnel release for idiopathic carpal tunnel syndrome: a meta-analysis of randomized controlled trials

The objective of this study is to do a meta-analysis of the literature and compare the safety and efficacy of endoscopic carpal tunnel release (ECTR) and open carpal tunnel release (OCTR) for idiopathic carpal tunnel syndrome (CTS). A comprehensive literature search of the electronic databases MEDLINE, EMBASE, Google Scholar, and the Cochrane Controlled Trial Register was undertaken for randomized studies reporting carpal tunnel syndrome treated with ECTR or OCTR. The quality of randomized trials was critically assessed. Pooled relative risk (RR) and 95% confidence intervals (CIs) for safety and efficacy outcome variables were calculated by fixed-effect or random-effect methods with RevMan v.5.1 provided by the Cochrane Collaboration. A total of 13 randomized trials were included by total retrieve and riddling. The results of our meta-analysis showed no significant difference in the overall complication rate (RR = 1.34, 95% CI [0.74, 2.43], P = 0.34), subjective satisfaction (RR = 1.0, 95% CI [0.93, 1.08], P = 0.92), time to return to work (mean difference = −3.52 [−8.15, 1.10], P = 0.14), hand grip and pinch strength, and the operative time (mean difference = −1.89, 95% CI [−5.84, 2.06]) between patients in the ECTR and OCTR groups (P = 0.16, 0.70, and 0.35, respectively). The rate of hand pain (RR = 0.73, 95% CI [0.53, 0.93], P = 0.02) in the ECTR group was significantly lower than that in the OCTR group. ECTR treatment seemed to cause more reversible postoperative nerve injuries as compared with OCTR (RR = 2.38, 95% CI [0.98, 5.77], P = 0.05). Although ECTR significantly reduced postoperative hand pain, it increased the possibility of reversible postoperative nerve injury in patients with idiopathic CTS. No statistical difference in the overall complication rate, subjective satisfaction, the time to return to work, postoperative grip and pinch strength, and operative time was observed between the two groups of patients.

Effectiveness of ultrasound-guided carpal tunnel injection using in-plane ulnar approach: a prospective, randomized, single-blinded study

The objective of this study is to evaluate the degree of symptom improvement and the change of electrophysiological and ultrasonographic findings after sonographically guided local steroid injection using an in-plane ulnar approach in carpal tunnel syndrome (CTS). Seventy-five cases of 44 patients diagnosed with CTS were included and evaluated at baseline and at 4 and 12 weeks after injection. All patients received injection with 40 mg of triamcinolone mixed with 1 mL of 1% lidocaine into the carpal tunnel using an in-plane Ultrasound (US)-guided ulnar approach, out-plane US-guided approach, and blind injection. For clinical evaluation, we used the Boston Carpal Tunnel Questionnaire (BCTQ) and electrophysiological tests. The ultrasonographic findings were also evaluated with regard to cross-sectional area and the flattening ratio of the median nerve. Subjective symptoms measured by BCTQ and median nerve conduction parameters showed significant improvement at 4 weeks in the in-plane ulnar approach group compared with the out-plane ulnar approach and blind injection. This improvement was still observed at 12 weeks. The flattening ratio and cross-sectional area of the median nerve showed a more significant decrease with the in-plane ulnar approach than with the out-plane ulnar approach and blind injection (P < 0.05). US-guided local steroid injection using an in-plane ulnar approach in the CTS may be more effective than out-plane or blind injection.

An outcomes protocol for carpal tunnel release: a comparison of outcomes in patients with and without medical comorbidities

PURPOSE

To prospectively report the outcomes of open carpal tunnel release with respect to patient age and medical comorbidities.

METHODS

Nine hundred fifty open carpal tunnel procedures in 826 patients (age range, 21-100 y) at a high-volume orthopedic surgery center were evaluated. Self-reported symptom severity and functional scores were collected using the validated Boston Carpal Tunnel Outcomes questionnaire preoperatively, and at 2 weeks, 6 weeks, and 12 weeks postoperatively.

RESULTS

Patients demonstrated a significant improvement in symptom severity scores at 2 weeks and functional severity scores at 6 weeks. Documented patient medical comorbidities did not affect improvement after surgery. Patients with diabetes improved more slowly but were not significantly different at 6 weeks. Patients with workers' compensation insurance were significantly worse at baseline, 2 weeks, and 6 weeks but were not significantly different at 3 months. The risk of negative postoperative endpoints was slightly higher in patients with a medical comorbidity, though not statistically different.

CONCLUSIONS

Significant improvements in symptom severity and hand function may be expected after open carpal tunnel release in the general population regardless of age, medical comorbidities, or workers' compensation status.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic III.

Carpal tunnel release using the radial sided approach compared with the two-incision approach

We compared carpal tunnel release using a radial sided approach (RCTR) with a two-incision approach with regards to complications, grip strength, and functional outcomes. Retrospective chart review was done and data was collected pre-operatively, and post-operatively at six weeks and three months. A total of 32 and 26 patients were included in the two-incision and RCTR groups respectively. At six weeks, the RCTR group showed an increased grip strength (+32.24%) while the two-incision group was weaker (-6.75%). Both groups showed an increased strength at three months, RCTR at 98.4% while the two-incision group was significantly lower at 38.6% increase. Both techniques provided improvement in outcome scores, with no statistical difference. RCTR was associated with a significantly earlier return of grip strength and had better grip strength at six weeks and three months post-operatively. Both techniques provided symptom relief and good functional outcome.

Long-term result and patient reported outcome of wrist splint treatment for carpal tunnel syndrome

Carpal tunnel syndrome (CTS) is the commonest peripheral neuropathy presenting to specialist hand and wrist clinics. This study investigated the long-term outcome of carpal tunnel syndrome treated with isolated night wrist splint and the factors determining the likelihood of success of this intervention. Seventy-five patients referred to a specialist hand clinic with CTS were given night wrist splint treatment for 3 months as per a previous study protocol. Fifty-two patients from this cohort did not wish to have surgery after wrist splint treatment and were followed for a further 33-month period. Baseline pain and numbness levels were recorded on a Visual Analogue Scale (VAS) using a questionnaire upon first presentation. A further questionnaire at 36 months reassessed pain and numbness levels, patients' satisfaction with the treatment, and whether they had subsequent surgical decompression. Of the patients who completed the follow-up questionnaire 33 months after their period of conservative management, 43% were successfully treated with splint treatment alone. There was no difference in the VAS for pain or numbness at the baseline and at 36 months between successful and failed treatment groups. Patients successfully treated with wrist splinting alone reported a higher level of satisfaction with their treatment compared to patients who failed wrist splint treatment or had surgical decompression. The results reinforce the previous recommendation on wrist splinting as a first-line treatment in the Primary Care setting. Referral to specialist hand and wrist clinics should be reserved for patients with symptoms refractory to this initial measure.

Endoscopic carpal tunnel release is preferred over mini-open despite similar outcome: a randomized trial

BACKGROUND

The decision to perform endoscopic versus the mini-open carpal tunnel release technique is most likely left to surgeons rather than patients with idiopathic carpal tunnel syndrome.

QUESTIONS/PURPOSES

We hypothesized that (1) at 3 months after surgery, the subjective outcomes of endoscopic release, performed on one hand, and mini-incision release, performed on the other, would not differ in patients with bilateral carpal tunnel syndrome; however, (2) each patient would likely prefer one technique over the other for specific reasons.

METHODS

Fifty-two patients with bilateral carpal tunnel syndrome had one hand randomized to undergo endoscopic release and the other to undergo mini-incision release. Each patient was assessed with the Boston Carpal Tunnel Questionnaire (BCTQ) and DASH preoperatively and at each followup. Three months after surgery, the patients commented on which technique they preferred and completed a questionnaire regarding the reasons for not preferring the other technique.

RESULTS

The mean BCTQ symptom/function score and DASH improved similarly in the endoscopic release group and the mini-incision release group. Thirty-four patients preferred endoscopic release and 13 preferred the mini-incision technique. Scar or pillar pain was the most commonly cited factor in not preferring either technique followed by postoperative pain for the open technique and transient worsening of symptoms for the endoscopic technique.

CONCLUSIONS

Despite similar improvements in BCTQ and DASH scores after endoscopic and open techniques at 3 months postoperatively, the majority of our patients preferred the endoscopic technique. The most concerning reason for not preferring the other technique was scar or pillar pain.

Massage therapy as an effective treatment for carpal tunnel syndrome

Carpal tunnel syndrome is a common peripheral entrapment that causes neuralgia in the median nerve distribution of the hand. The primary aim of this study was to evaluate the efficacy of massage therapy as a treatment for carpal tunnel syndrome. Within this process, the locations of trigger-points that refer neuropathy to the hand were identified. The creation of massage pressure tables provides a means of treatment reproducibility. Twenty-one participants received 30 min of massage, twice a week, for six weeks. Carpal tunnel questionnaires, the Phalen, Tinel, and two-point discrimination tests provided outcome assessment. The results demonstrated significant (p < 0.001) change in symptom severity and functional status from two weeks. Based on this study, the combination of massage and trigger-point therapy is a viable treatment option for carpal tunnel syndrome and offers a new treatment approach.

Usefulness of ultrasonography to predict response to injection therapy in carpal tunnel syndrome

OBJECTIVE

To verify the feasibility of initial parameters of ultrasonography or electromyography for the prediction of effect after steroid injection therapy in a carpal tunnel syndrome (CTS) patient.

METHOD

We recruited individuals with clinical and electrodiagnostic evidence of CTS. Results from the Boston self-assessment questionnaire, median motor and sensory nerve conduction studies, and median nerve ultrasonography were evaluated at baseline, 1 month, and 6 months after injection. Evaluation of median nerve ultrasonography parameters included measurements taken at the maximal swelling point (MS), 2 cm proximal from MS (2MS), and 12 cm proximal from MS (12MS), and its ratio (MS/12MS, 2MS/12MS) was calculated. The correlation between improvement of the symptom score after treatment and baseline parameters was estimated.

RESULTS

Fourteen individuals (14 women, mean age 53.8 years) with 22 affected wrists were enrolled. After steroid injection therapy, clinical and electromyographic parameters showed significant improvements at 1 month or 6 months after injection, and ultrasonographic parameters showed significant changes in maximal area and area ratio (MS/12MS) of the median nerve. Symptom score improvement showed a positive correlation in the initial 2MS and ratio of 2MS/12MS after 6 months (p<0.05).

CONCLUSION

Most of the improvements occurred during the first month after injection and lasted up to 6 months. The initial median nerve swelling and its ratio may be a useful predictor of response after steroid injection.

Is surgical intervention more effective than non-surgical treatment for carpal tunnel syndrome? A systematic review

Background

Carpal tunnel syndrome is a common disorder in hand surgery practice. Both surgical and conservative interventions are utilized for the carpal tunnel syndrome. Although certain indications would specifically indicate the need for surgery, there is a spectrum of patients for whom either treatment option might be selected. The purpose of this systematic review was to compare the efficacy of surgical treatment of carpal tunnel syndrome with conservative treatment

Methods

We included all controlled trials written in English, attempting to compare any surgical interventions with any conservative therapies. We searched Cochrane Central Register of Controlled Trials (The Cochrane Library Issue 1, 2010), MEDLINE (1980 to June 2010), EMBASE (1980 to June 2010), PEDro (searched in June 2010), international guidelines, computer searches based on key words and reference lists of articles. Two reviewers performed study selection, assessment of methodological quality and data extraction independently of each other. Weighted mean differences and 95% confidence intervals for patient self-reported functional and symptom questionnaires were calculated. Relative risk (RR) and 95% confidence intervals for electrophysiological studies and complication were also calculated.

Results

We assessed seven studies in this review including 5 RCTs and 2 controlled trials. The methodological quality of the trials ranged from moderate to high. The weighted mean difference demonstrated a larger treatment benefit for surgical intervention compared to non surgical intervention at six months for functional status 0.35( 95% CI 0.22, 0.47) and symptom severity 0.43 (95% CI 0.29, 0.57). There were no statistically significant difference between the intervention options at 3 months but there was a benefit in favor of surgery in terms of function and symptom relief at 12 months ( 0.35, 95% CI 0.15, 0.55 and 0.37, 95% CI 0.19 to 0.56). The RR for secondary outcomes of normal nerve conduction studies was 2.3 (95% CI 1.2, 4.4), while RR was 2.03 (95% CI 1.28 to 3.22) for complication, both favoring surgery.

Conclusion

Both surgical and conservative interventions had treatment benefit in carpal tunnel syndrome. Surgical treatment has a superior benefit, in symptoms and function, at six and twelve months. Patient underwent surgical release were two times more likely to have normal nerve conduction studies but also had complication and side effects as well. Given the treatment differential and potential for adverse effects and that conservative interventions benefitted a substantial proportion of patients, current practice of a trial of conservative management with surgical release for severe or persistent symptoms is supported by evidence.

Carpal tunnel syndrome. Part II: effectiveness of surgical treatments--a systematic review

OBJECTIVE

To present an evidence-based overview of the effectiveness of surgical and postsurgical interventions to treat carpal tunnel syndrome (CTS).

DATA SOURCES

The Cochrane Library, PubMed, EMBASE, CINAHL, and PEDro were searched for relevant systematic reviews and randomized controlled trials (RCTs).

STUDY SELECTION

Two reviewers independently applied the inclusion criteria to select potential studies.

DATA EXTRACTION

Two reviewers independently extracted the data and assessed the methodologic quality.

DATA SYNTHESIS

A best-evidence synthesis was performed to summarize the results of the included studies. Two reviews and 25 RCTs were included. Moderate evidence was found in favor of surgical treatment compared with splinting or anti-inflammatory drugs plus hand therapy in the midterm and long term, and for the effectiveness of corticosteroid irrigation of the median nerve before skin closure as additive to carpal tunnel release in the short term. Limited evidence was found in favor of a double-incision technique compared with the standard incision technique. Also, limited evidence was found in favor of a mini-open technique assisted by a Knifelight instrument compared with a standard open release at 19 months of follow-up. However, in the short term and at 30 months of follow-up, no significant differences were found between the mini-open technique assisted by a Knifelight instrument compared with a standard open release. Many studies compared different surgical interventions, but no evidence was found in favor of any one of them. No RCTs explored the optimal timing strategy for surgery. No evidence was found for the efficacy of various presurgical or postsurgical treatment programs, including splinting.

CONCLUSIONS

Surgical treatment seems to be more effective than splinting or anti-inflammatory drugs plus hand therapy in the midterm and long term to treat CTS. However, there is no unequivocal evidence that suggests one surgical treatment is more effective than the other. More research is needed to study conservative to surgical treatment in which also should be taken into account the optimal timing of surgery. Future research should also concentrate on optimal presurgical and postsurgical treatment programs.

Evidence supporting the use of physical modalities in the treatment of upper extremity musculoskeletal conditions

PURPOSE OF REVIEW

To evaluate recent trials and reviews of physical modalities and conservative treatments for selected upper extremity musculoskeletal conditions for evidence supporting their use.

RECENT FINDINGS

Recent evidence suggests that many localized tendinopathies are related more to degenerative than inflammatory processes. With this realization, there is increased emphasis on finding new modalities to treat tendinopathies and other localized musculoskeletal conditions that rely on other than anti-inflammatory mechanisms. Although there is good evidence to support the short-term benefits of corticosteroid injections, convincing evidence in support of other conservative treatments and modalities is generally lacking. Extracorpal shock wave therapy may have significant clinical benefit for calcific tendinitis; however, it requires intravenous sedation in most cases and does not appear to be effective in lateral epicondylitis. The most consistent positive treatment effects for rotator cuff tendinitis were achieved by ultrasound-guided subacromial corticosteroid injection as well as manual therapy in conjunction with therapeutic exercise.

SUMMARY

Although there is evidence supporting the use of several different physical modalities and conservative treatments for upper extremity musculoskeletal conditions, there is a strong need for larger, higher quality randomized controlled trials. Although most studies are able to demonstrate short-term benefits, there is a lack of high-quality data demonstrating that these conservative treatments have long-term benefits, particularly, with regard to functional outcomes.

Severity scoring in carpal tunnel syndrome helps predict the value of conservative therapy

A prospective study was performed to assess the outcome of conservative treatment of carpal tunnel syndrome and to establish the predictive value of preoperative Boston carpal tunnel questionnaire scores. Sixty-seven patients with 101 symptomatic hands underwent an evidence-based education and conservative therapy regime prior to surgery. All patients were scored using the Boston carpal tunnel questionnaire at presentation and at 3 months. Fifty-eight of 67 patients completed both assessments providing a complete assessment of 89 symptomatic hands. The mean Boston carpal tunnel questionnaire scores improved significantly from 2.45 to 2.12 and throughout the duration of the study 73% of patients improved with conservative treatment and 14% did not require surgery. Severity scoring at presentation was predictive of outcome with conservative therapy. This work suggests that the Boston carpal tunnel questionnaire can be used to identify patients who are likely to respond to conservative treatment.

Comparison of splinting and splinting plus low-level laser therapy in idiopathic carpal tunnel syndrome

This study aimed to compare the short-term efficacy of splinting (S) and splinting plus low-level laser therapy (SLLLT) in mild or moderate idiopathic carpal tunnel syndrome (CTS) with a prospective, randomized controlled study. The patients with unilateral, mild, or moderate idiopathic CTS who experienced symptoms over 3 months were included in the study. The SLLLT group received ten sessions of laser therapy and splinting while S group was given only splints. The patients were evaluated at the baseline and after 3 months of the treatment. Follow-up parameters were nerve conduction study (NCS), Boston Questionnaire (BQ), grip strength, and clinical response criteria. Forty-five patients with CTS completed the study. Twenty-four patients were in S and 21 patients were in SLLLT group. In the third-month control, SLLLT group had significant improvements on both clinical and NCS parameters (median motor nerve distal latency, median sensory nerve conduction velocities, BQ symptom severity scale, and BQ functional capacity scale) while S group had only symptomatic healing (BQ symptom severity scale). The grip strength of splinting group was decreased significantly. According to clinical response criteria, in SLLLT group, five (23.8%) patients had full and 12 (57.1%) had partial recovery; four (19%) patients had no change or worsened. In S group, one patient (4.2%) had full and 17 (70.8%) partial recovery; six (25%) patients had no change or worsened. Additionally, applied laser therapy provided better outcomes on NCS but not in clinical parameters in patients with CTS.

Treatment of carpal tunnel syndrome

In September 2008, the Board of Directors of the American Academy of Orthopaedic Surgeons approved a clinical practice guideline on the treatment of carpal tunnel syndrome. This guideline was subsequently endorsed by the American Association of Neurological Surgeons and the Congress of Neurological Surgeons. The guideline makes nine specific recommendations: A course of nonsurgical treatment is an option in patients diagnosed with carpal tunnel syndrome. Early surgery is an option with clinical evidence of median nerve denervation or when the patient so elects. Another nonsurgical treatment or surgery is suggested when the current treatment fails to resolve symptoms within 2 to 7 weeks. Sufficient evidence is not available to provide specific treatment recommendations for carpal tunnel syndrome associated with such conditions as diabetes mellitus and coexistent cervical radiculopathy. Local steroid injection or splinting is suggested before considering surgery. Oral steroids or ultrasound are options. Carpal tunnel release is recommended as treatment. Heat therapy is not among the options to be used. Surgical treatment of carpal tunnel syndrome by complete division of the flexor retinaculum is recommended. Routine use of skin nerve preservation and epineurotomy is not suggested when carpal tunnel release is performed. Prescribing preoperative antibiotics for carpal tunnel surgery is an option. It is suggested that the wrist not be immobilized postoperatively after routine carpal tunnel surgery. It is suggested that instruments such as the Boston Carpal Tunnel Questionnaire and the Disabilities of the Arm, Shoulder, and Hand questionnaire be used to assess patient responses to carpal tunnel syndrome treatment for research.

Effect of Er:YAG and CO2 lasers with and without sodium fluoride gel on dentinal tubules: a scanning electron microscope examination

OBJECTIVE

The aim of this pilot study was to evaluate the occluding effect of erbium:yttrium-aluminum-garnet (Er:YAG) and carbon dioxide (CO2) lasers as monotherapy and in combination with topical fluoride gel on human dentinal tubules by scanning electron microscopic (SEM) examination.

MATERIALS AND METHODS

Thirty-six dentine specimens with exposed dentinal tubule orifices were included in this study. The samples were divided into six groups. Group A served as controls, group B was treated with 2% sodium fluoride (NaF) gel alone, groups C and D were irradiated with Er:YAG (30 Hz, 60 mJ, for 10 sec) and CO2 (1 W, continuous-wave mode, for 10 sec) lasers, respectively, and groups E and F received NaF gel plus Er:YAG and CO2 laser irradiation, respectively.

RESULTS

Under SEM analysis, numerous exposed, normally-structured dentinal tubule orifices were seen in the control group. Some narrowing of the exposed tubule orifices was seen in group B. A melted, irregular surface structure with small peaks was observed in group C. The surface of group D also had a melted appearance, but a fibrillar deformation of the surface structure was seen on the specimens. However, the surface morphologies seen were remarkably different in groups E and F. While the tubule orifices were obviously occluded but depressed into craters in group E, the surface structure of group F primarily showed a smooth appearance. In terms of numbers and diameters of open dentinal tubules, there was no significant difference between the laser-alone and combination groups, whereas the difference was found to be significant when the control and NaF groups were compared with each other and the remaining laser-alone or combination groups.

CONCLUSION

The dentinal tubules in all laser groups were occluded after laser irradiation, but more marked occlusions were observed when laser and NaF gel were combined.

Surgical versus non-surgical treatment for carpal tunnel syndrome

BACKGROUND

Carpal tunnel syndrome results from entrapment of the median nerve in the wrist. Common symptoms are tingling, numbness, and pain in the hand that may radiate to the forearm or shoulder. Most symptomatic cases are treated non-surgically.

OBJECTIVES

The objective is to compare the efficacy of surgical treatment of carpal tunnel syndrome with non-surgical treatment.

SEARCH STRATEGY

We searched the Cochrane Neuromuscular Disease Group Trials Register (January 2008), MEDLINE (January 1966 to January 2008), EMBASE (January 1980 to January 2008) and LILACS (January 1982 to January 2008). We checked bibliographies in papers and contacted authors for information about other published or unpublished studies.

SELECTION CRITERIA

We included all randomised and quasi-randomised controlled trials comparing any surgical and any non-surgical therapies.

DATA COLLECTION AND ANALYSIS

Two authors independently assessed the eligibility of the trials.

MAIN RESULTS

In this update we found four randomised controlled trials involving 317 participants in total. Three of them including 295 participants, 148 allocated to surgery and 147 to non-surgical treatment reported information on our primary outcome (improvement at three months of follow-up). The pooled estimate favoured surgery (RR 1.23, 95% CI 1.04 to 1.46). Two trials including 245 participants described outcome at six month follow-up, also favouring surgery (RR 1.19, 95% CI 1.02 to 1.39).Two trials reported clinical improvement at one year follow-up. They included 198 patients favouring surgery (RR 1.27, 95% CI 1.05 to 1.53). The only trial describing changes in neurophysiological parameters in both groups also favoured surgery (RR 1.44, 95% CI 1.05 to 1.97). Two trials described need for surgery during follow-up, including 198 patients. The pooled estimate for this outcome indicates that a significant proportion of people treated medically will require surgery while the risk of re-operation in surgically treated people is low (RR 0.04 favouring surgery, 95% CI 0.01 to 0.17). Complications of surgery and medical treatment were described by two trials with 226 participants. Although the incidence of complications was high in both groups, they were significantly more common in the surgical arm (RR 1.38, 95% CI 1.08 to 1.76).

AUTHORS' CONCLUSIONS

Surgical treatment of carpal tunnel syndrome relieves symptoms significantly better than splinting. Further research is needed to discover whether this conclusion applies to people with mild symptoms and whether surgical treatment is better than steroid injection.

Use of a splint following open carpal tunnel release: a comparative study

This study was undertaken to compare the clinical effectiveness and costs of postoperative splintage and late rehabilitation with a bulky bandage dressing versus early rehabilitation after carpal tunnel release. In this comparative study, 46 patients were randomly divided into 2 groups. In each group, 3 patients were excluded because of improper follow-up, leaving a total of 40 patients. Group 1 used a splint (exercises given 3 wk postoperatively) and group 2 was given a bulky bandage (exercises provided immediately) after open release. Patients were assessed preoperatively and at the first and third postoperative months with the Questionnaire of Levine for Clinical Assessment of Carpal Tunnel Syndrome. The 2 groups were similar in terms of preoperative functional status scores and in controls at the first and third months (P=.549, P=.326, P=.190). When both groups were compared, no statistical significance was found regarding symptom severity scale scores preoperatively and at the first postoperative month (P=.632 vs P=.353). At the third month, scores were lower in favor of group 2 (P=.023). Additionally, 16 of 20 patients (80%) in group 1 reported a heavy feeling and discomfort caused by the splint. This problem was not reported by the patients in group 2. The cheapest splint on the market was 9 times more expensive than a bulky dressing. The investigators concluded that postoperative immobilization with a splint has no detectable benefits. Use of bulky dressings and abandonment of the use of postoperative splints may prevent unnecessary expenditures without sacrificing patient comfort or compromising the course of healing in carpal tunnel surgery.