Long-term effectiveness of steroid injections and splinting in mild and moderate carpal tunnel syndrome. Corticosteroid injection vs. nonsteroidal antiinflammatory drug and splinting in carpal tunnel syndrome. Intracarpal steroid injection is safe and effective for short-term management of carpal tunnel syndrome. Determination of sensitive electrophysiologic parameters at follow-up of different steroid treatments of carpal tunnel syndrome. The efficacy of local steroid injections in idiopathic carpal tunnel syndrome: a double-blind study. Injection with methylprednisolone proximal to the carpal tunnel: randomised double blind trial. Single vs. two steroid injections for carpal tunnel syndrome: a randomised clinical trial. Evaluation of iontophoresis and local corticosteroid injection in the treatment of carpal tunnel syndrome. Corticosteroid injection for the treatment of carpal tunnel syndrome. Local vs systemic corticosteroids in the treatment of carpal tunnel syndrome. A novel approach of local corticosteroid injection for the treatment of carpal tunnel syndrome.
To evaluate the long-term efficacy of non-surgical treatment methods for mild and moderate carpal tunnel syndrome, 120 patients with clinical symptoms and electrophysiologic evidence were included in a prospective, randomized and blinded trial: 60 patients were instructed to wear splints every night, 30 received injections of betamethasone 4 cm proximal to the carpal tunnel, and 30 received injections distal to the carpal tunnel. After approximately 1 year (mean, 11 months; range, 9-14), 108 patients were available for final evaluation. We assessed clinical symptom severity and performed detailed electrophysiologic examinations before and after treatment. Splinting provided symptomatic relief and improved sensory and motor nerve conduction velocities at the long-term follow-up when the splints were worn almost every night. Proximal and distal injections of steroids were ineffective on the basis of both clinical symptoms and electrophysiologic findings. To compare the efficacy of local corticosteroid injection to a nonsteroidal antiinflammatory drug and splinting for the treatment of carpal tunnel syndrome.
                This study was a prospective, unblinded, randomized clinical trial with an 8-wk follow-up. Thirty-three hands of 23 patients were randomly treated with acemetacine and splinting (group A) or with corticosteroid injection (group B). Clinical (symptom severity scale, visual analog scale, Tinel and Phalen tests) and electromyographic evaluations were performed on initial visit and after 8 wk.
                Clinical and electromyographic parameters, which were similar at baseline, were improved in both groups after treatment. Improvement was also similar when both groups were compared at 8 wk.
                Both splinting combined with the use of a nonsteroidal antiinflammatory drug and steroid injection into the carpal tunnel resulted in significant improvement in carpal tunnel syndrome. A double-blinded placebo-controlled trial was performed to evaluate the use of steroid injections beneath the transverse carpal ligament in the treatment of carpal tunnel syndrome (CTS) refractory to nonsurgical therapy. Forty-three patients received 6 mg betamethasone and lidocaine and 38 patients received 1 ml saline placebo and lidocaine. The primary outcome measure was satisfaction with symptom relief. Thirty patients (70%) in the steroid-treated group were satisfied or highly satisfied compared with 13 (34%) of placebo-treated patients (P < 0.001). Patients receiving steroids also showed significant improvement in median nerve conduction parameters and scores on validated symptom/function questionnaires. Forty-six patients were treated with serial injections for recurrent CTS symptoms. After 18 months, 17 patients reported adequate symptom relief with steroid injection, and 18 patients with unsatisfactory symptom relief were referred for carpal tunnel release surgery. We conclude that although steroid injections are safe and effective for temporary relief of CTS, most patients will eventually require surgery for long-term control of their symptoms. Nonsurgical treatment for carpal tunnel syndrome (CTS) is frequently offered to those with mild to moderate symptoms. However, the most sensitive electrophysiological parameters at follow-up, and most effective type of different methods of steroid treatment for CTS, remain unknown. The aim of this study was to compare the efficacy of local corticosteroid injection, phonophoresis, and iontophoresis for the treatment of CTS, and to evaluate the most sensitive electrophysiologic parameters at the follow-up visit. Different conservative treatments were applied in this prospective study. Fifty-six hands of 31 patients were randomly treated with local steroid injection, iontophoresis, or phonophoresis with 2- and 4-month follow-up visits. Conventional and new neurophysiologic sensorimotor nerve conduction parameters for CTS diagnosis were performed on the initial visit and at 2 and 4 months after treatment. The local steroid injection group showed a significant improvement in the mean nerve conduction parameters after the second and fourth months when compared with basal values, whereas no significant changes except the difference between the median and ulnar distal latency to the fourth digit (D4M-D4U), difference between sensory median distal latency to second digit and ulnar distal latency to the fifth digit (D2M-D5U), and median motor distal latency were observed in the iontophoresis and phonophoresis groups. At the end of follow-up period, the most sensitive parameters were D4M-D4U and D2M-D5U; the D4M-D4U was improved 60% in the injection group, 33% in iontophoresis group, and 39% in phonophoresis group, and the improvement of the D2M-D5U was 70%, 28%, and 28%, respectively, in the injection, iontophoresis, and phonophoresis groups. These findings show that steroid injection is superior to iontophoresis and phonophoresis in the treatment of CTS, and that the most sensitive neurophysiologic parameters in follow-up are D4M-D4U and D2M-D5U, being the objective measures of the outcome of CTS treatment. In order to investigate the superiority of local steroid injection over the intramuscular route, 37 patients with idiopathic carpal tunnel syndrome were treated with local or systemic steroid injections in a double-blind study. The first group received steroid injections into the carpal tunnel of the more severely affected hand and placebo into the deltoid muscle of the same side. The second group received steroid injections intramuscularly, and placebo into the carpal tunnel. The only significant improvement observed at the end of one month was in the steroid-injected hands of the first group. At 10-12 months follow-up only four (22%) of the 18 patients from this Group were symptom free. To assess the effect of a 40 mg methylprednisolone injection proximal to the carpal tunnel in patients with the carpal tunnel syndrome.
                Randomised double blind placebo controlled trial.
                Outpatient neurology clinic in a district general hospital.
                Patients with symptoms of the carpal tunnel syndrome for more than 3 months, confirmed by electrophysiological tests and aged over 18 years.
                Injection with 10 mg lignocaine (lidocaine) or 10 mg lignocaine and 40 mg methylprednisolone. Non-responders who had received lignocaine received 40 mg methylprednisolone and 10 mg lignocaine and were followed in an open study.
                Participants were scored as having improved or not improved. Improved was defined as no symptoms or minor symptoms requiring no further treatment.
                At 1 month 6 (20%) of 30 patients in the control group had improved compared with 23 (77%) of 30 patients the intervention group (difference 57% (95% confidence interval 36% to 77%)). After 1 year, 2 of 6 improved patients in the control group did not need a second treatment, compared with 15 of 23 improved patients in the intervention group (difference 43% (23% to 63%). Of the 28 non-responders in the control group, 24 (86%) improved after methylprednisolone. Of these 24 patients, 12 needed surgical treatment within one year.
                A single injection with steroids close to the carpal tunnel may result in long term improvement and should be considered before surgical decompression. We investigated the efficacy of a single vs. double steroid injections in the treatment of carpal tunnel syndrome (CTS) in a randomised double-blind controlled trial. Patients with idiopathic CTS were randomised into (i) one group receiving a baseline methylprednisolone acetate injection plus a saline injection 8 weeks later and (ii) a second group receiving methylprednisolone acetate injection at baseline and at 8 weeks. The primary outcome was the Global Symptom Score (GSS). Forty patients were recruited. By 40 weeks, the mean GSS improved from 25.6 to 14.1 in the single-injection group whereas from 26.7 to 12.6 in the reinjection group, but there was no significant difference in GSS between the two groups (p = 0.26). There were also no significant differences in terms of electrophysiological and functional outcomes. The results suggest that an additional steroid injection confers no added benefit to a single injection in terms of symptom relief. The aim of this study was to compare the efficacy of local corticosteroid injection with iontophoresis of corticosteroids in the treatment of carpal tunnel syndrome.
                This study was a prospective, randomized, unblinded clinical trial with follow-up at 2 and 8 wks. Thirty patients (48 median nerves) with clinical and electrophysiologic evidence of carpal tunnel syndrome were included in the study. Patients were evaluated by use of clinical variables, a functional status scale, a symptom severity scale, and visual analog scale. A total of 48 median nerves were randomly assigned to one of two groups; group 1 received 40 mg of methylprednisolone acetate injected locally in the carpal tunnel, and group 2 received iontophoresis of dexamethasone sodium phosphate. Clinical variables and scales were evaluated at regular intervals: at the beginning and at the end of therapy in the second and eighth week.
                Twenty-seven patients (90%) were women and three patients (10%) were men. The mean age of patients was 48.0 +/- 8.2 (range, 29-61) yrs. There was a statistically significant improvement in the clinical examination variables, visual analog scale, symptom severity scale, and functional status scale scores of the patients in both of the treatment groups posttreatment (at 2 and 8 wks) compared with baseline (P < 0.05). However, there was a statistically significant difference between the values of the two group. A significant difference in mean symptom severity scale, functional status scale, and visual analog scale scores was found in second week and eighth week in the injection group compared with iontophoresis.
                Our study comparing a standardized treatment protocol for incorporating local corticosteroid injection and iontophoresis of dexamethasone sodium phosphate in carpal tunnel syndrome revealed success of both iontophoresis of dexamethasone sodium phosphate and injection of corticosteroids, but symptom relief was greater at 2 and 8 wks with injection of corticosteroids. To compare low and high dose, and short and long acting corticosteroids in the treatment of carpal tunnel syndrome.
                A randomised, controlled, single blind trial with electromyographic and subjective outcome measures.
                25 mg hydrocortisone is as effective as higher doses or long acting triamcinolone at a six week and six month follow up.
                As low dose steroid is as effective, and potentially less toxic, this should be the recommended dose for injection of carpal tunnel syndrome. The authors compared the effectiveness of low-dose, short-term oral prednisolone vs local methylprednisolone injection in a prospective, double-blinded, parallel treatment study of carpal tunnel syndrome (CTS). A single injection of 15 mg methylprednisolone resulted in significant improvement in global symptom scores over a 12-week period. This study demonstrated the superiority of local steroid injection to oral steroid in the treatment of CTS. The objective of the study was to compare the favorable response rate, time duration, and pain level of local corticosteroid injection using a novel approach for the treatment of carpal tunnel syndrome vs a classic approach. Patients with symptomatic carpal tunnel syndrome of less than 1-year duration were randomized for local corticosteroid injection using either the classic approach or a novel approach. In our approach (novel), we used a 29 gauge x 1/2-in. needle and a 1-ml insulin syringe containing 12 mg of methylprednisolone mixed with 0.15 ml of lidocaine 2%, and the site of the injection was 2-3 cm distal to the middle of wrist crease. In the classic approach, we used a 25 gauge x 3-cm needle and a 2-ml syringe injecting 35 mg of methylprednisolone mixed with 0.5 ml of lidocaine 2%, 3-4 cm proximal to the wrist crease and just ulnar to the tendon of the flexor carpi radialis muscle. Response rate was evaluated 1, 3, 6, and 12 weeks after the injection, and also the duration of time of the procedure and the level of pain using the visual analogue scale were compared between the two groups. Forty-two patients signed the consent form, and all of them completed the study [21 patients in the classic approach group (group 1) and 21 patients in the novel approach group (group 2)]. The favorable response rates were 100, 81, 71, and 57% in group 1 and 100, 71, 67, and 57% in group 2 after 1, 3, 6, and 12 weeks, respectively. There was no significant difference in the favorable response rate between the two groups (p=0.468, 95% CI=-12-31%, after 3 weeks). The average duration of time of the procedure in group 1 was 26.71+/-32.83 s compared to 8.48+/-1.123 s (p=0.021) in group 2. The average grade of pain expressed by the patients in group 1 was 4.38+/-1.523 compared to 3.62+/-1.071 in group 2 (p=0.065). In conclusion, local corticosteroid injection using the novel approach for the treatment of carpal tunnel syndrome is helpful, and the favorable response rates are comparable to those using the classic approach after 1, 3, 6, and 12 weeks. The novel approach is much less time consuming and is not more painful.
Local corticosteroid injection for carpal tunnel syndrome provides greater clinical improvement in symptoms one month after injection compared to placebo. Significant symptom relief beyond one month has not been demonstrated. Local corticosteroid injection provides significantly greater clinical improvement than oral corticosteroid for up to three months. Local corticosteroid injection does not significantly improve clinical outcome compared to either anti-inflammatory treatment and splinting after eight weeks or Helium-Neon laser treatment after six months. Two local corticosteroid injections do not provide significant added clinical benefit compared to one injection.