Lateral epicondylitis: This is still a main indication for extracorporeal shockwave therapy

Validity and reliability of the Duruöz Hand Index in patients with lateral epicondylitis

Objectives

This study aims to investigate the validity, reliability and clinimetric features of the Duruöz Hand Index (DHI) in patients with lateral epicondylitis.

Patients and methods

Between October 2019 and January 2020, a total of 78 patients (28 males, 50 females; mean age: 46.4±9.4 years; range, 20 to 65 years) who presented with pain in the forearm and were diagnosed with lateral epicondylitis were included in the study. The patients were evaluated using the Visual Analog Scale (VAS), Health Assessment Questionnaire (HAQ), the Patient-Rated Tennis Elbow Evaluation Questionnaire (PRTEEQ), the Disabilities of the Arm, Shoulder and Hand (DASH) Questionnaire at Weeks 0, 1 and 4. The DHI reliability (Cronbach alpha, intraclass correlation [ICC]), validity and factor analyses were performed with the data of 70 and 49 patients who attended to follow-up visit at Weeks 1 and 4. The effect size (ES), standard response mean (SRM), and minimum detectable change (MDC) values of the DHI were calculated.

Results

Of the patients, 84.6% were right-handed. The ICC coefficients of DHI were found to be perfect with the test-retest method (ICC; total=0.943). It showed a well-excellent consistency with the internal consistency method (Cronbach alpha; total=0.90). In the structural validity of the DHI, it was very strongly correlated with the DASH (r=0.801; p<0.01), strongly correlated with the PRTEEQ and HAQ total scores (r=0.793; p<0.01; r=0.785; p<0.01), and acceptably correlated with PRTEEQ pain score (r=0.570; p<0.01). The DHI was acceptably correlated with the VAS and grip strength as measured by the hand dynamometer (p<0.05). In our study, three main factors were obtained and MDC and responsiveness sensitivity were found to be moderate (MDC=4.4; SEM=1.61; ES=0.246 p<0.001; SRM=0.538 p<0.001).

Conclusion

Duruöz Hand Index is a reliable, valid, and practical functional assessment scale in patients with lateral epicondylitis.

Application of shock wave therapy in the treatment of calcific tendinopathies

Tendons are the soft tissue that connects muscles to bones. They are made of collagen and elastin, they are strong and solid, and have no possibility of contraction. Their strength helps us to move. Recovery of tendon injuries is long-lasting and can take more than six months. If a tendon is shed during a time injury, calcification occurs at the site of the injury and the disease is called calcifying tendinopathy. The very existence of calcifications is an indication for treatment with a mechanical shock wave (Shock wave). Mechanical shock waves can act in focus or radially. The difference between focused and radial waves is primarily in their physical basis. Focused shock waves differ from radial shock waves in terms of therapeutic depth of penetration into the tissue. The basic biological effect of a mechanical shock wave is stimulating. The energy of the mechanical shock wave acts at the cellular level by stimulating the reduction of inflammation and pain in the tissue. Using mechanical shock wave in the treatment of calcified tendinopathies, a safe method for breaking calcifications was obtained. Shock wave can be applied to using: different frequency, different number of strokes, as well as different strength of strokes in their studies. The choice of parameters for the application depends on whether it is calcified or non-calcified tendinopathy. Indications for the use are: painful shoulder, heel spur, plantar fasciitis, tennis elbow, Achilles tendon tendinopathy, jumping knee, patellar tendinitis, myalgia, myogelosis and muscular tendon overstrain syndrome. Contraindications for the use are: the existence of prostheses, knees and hips, as well as various orthopedic material, pacemaker, as well as the presence of chronic diseases such as multiple sclerosis, amyotrophic lateral sclerosis or tumors. The application of a mechanical shock wave is new, non-invasive method, easy to apply, always reduces pain and practically without side effects. This method has a special role in the treatment of chronic inflammation of diseased tendons, with or without calcification. The only dilemma in the application of a mechanical shock wave can be in the number of applications as well as the time break between the applications of two consecutive mechanical shock waves therapy.

Osteochondral Lesions of the Talus: A Review on Talus Osteochondral Injuries, Including Osteochondritis Dissecans

This is a review on talus osteochondritis dissecans and talus osteochondral lesions. A majority of the osteochondral lesions are associated with trauma while the cause of pure osteochondritis dissecans is still much discussed with a possible cause being repetitive microtraumas associated with vascular disturbances causing subchondral bone necrosis and disability. Symptomatic nondisplaced osteochondral lesions can often be treated conservatively in children and adolescents while such treatment is less successful in adults. Surgical treatment is indicated when there is an unstable cartilage fragment. There are a large number of different operative technique options with no number one technique to be recommended. Most techniques have been presented in level II to IV studies with a low number of patients with short follow ups and few randomized comparisons exist. The actual situation in treating osteochondral lesions in the ankle is presented and discussed.

Combined extracorporeal shockwave therapy and exercise for the treatment of tendinopathy: A narrative review

Tendinopathy is a chronic degenerative musculoskeletal disorder that is common in both athletes and the general population. Exercise and extracorporeal shockwave therapy (ESWT) is among the most common treatments used to mediate tendon healing and regeneration. The review presents the current understanding of mechanisms of action of ESWT and exercise in isolation and briefly synthesises evidence of their effectiveness for various tendinopathies. The central purpose of the review is to synthesize research findings investigating the combination of ESWT and exercise for five common tendinopathies (plantar heel pain, rotator cuff, lateral elbow, Achilles, and patellar tendinopathy) and provide recommendations on clinical applicability. Collectively, the available evidence indicates that ESWT combined with exercise in the form of eccentric training, tissue-specific stretching, or heavy slow resistance training are effective for specific tendinopathies and can therefore be recommended in treatment. Whilst there are at present a limited number of studies investigating combined EWST and exercise approaches, there is evidence to suggest that the combination improves outcomes in the treatment of plantar heel pain, Achilles, lateral elbow, and rotator cuff tendinopathy. However, despite overall positive outcomes in patellar tendinopathy, the combined treatment has not been shown at present to offer additional benefit over eccentric exercise alone.

A retrospective comparative study on arthroscopic suture anchors repair and tendon debridement versus arthroscopic tendon debridement for treatment of recalcitrant lateral epicondylitis

Aim

To compare the outcomes between the arthroscopic debridement of the extensor carpi radialis brevis (ECRB) tendon alone and repairs to the ECRB tendon with suture anchor for the treatment of refractory lateral epicondylitis (LE).

Methods

We retrospectively reviewed our patients who underwent arthroscopic surgical treatment for refractory LE by a single surgeon from January 2008 to June 2018 with a minimum follow-up of 12 months. The visual analog scale (VAS), the Mayo Elbow Performance Score (MEPS), the Disability of the Arm, Shoulder, and Hand (DASH) questionnaire, the Patient-Rated Tennis Elbow Evaluation (PRTEE) scale, the Verhaar scoring system and the time of back to work were compared between two groups.

Results

Both groups showed a significant postoperative improvement regarding the VAS, MEPS, DASH, PRTEE and the Verhaar scoring system (p < 0.05). The repair group showed better results regarding the MEPS, DASH, PRTEE and Verhaar scoring system comparing with the debridement group, which were statically significant (p < 0.05). There were no significant differences between the two groups regarding the VAS both at rest and activity at the final follow-up. There were no significant differences for the average time for return to work (p = 0.229). There were 11 patients in the debridement group and six patients in the repair group, who completed the MRI evaluation at 6 months postoperatively.

Conclusion

Compared with arthroscopic release and debridement of the ECRB tendon, arthroscopic suture anchor repairing of the origin of the ECRB tendon provides better outcomes when addressing the refractory LE.

Level of Evidence

Case Series: Level IV.

Comparison of the clinical and sonographic effects of ultrasound therapy, extracorporeal shock wave therapy, and Kinesio taping in lateral epicondylitis

Background/aim

The aim of this study was to compare the clinical and sonographic effects of the ultrasound (US) therapy, extracorporeal shock wave therapy (ESWT), and Kinesio taping (KT) in the lateral epicondylitis (LE).

Materials and methods

A total of 40 patients with LE were included in the present study. The patients were randomly assigned to 3 treatment groups: US (n = 13), ESWT (n = 14), and KT (n = 13) groups.

Results

The visual analog scale (VAS) scores significantly decreased in all groups (P < 0.05). Grip strength significantly increased after 8 weeks in only the KT group (P < 0.05). The Patient-Rated Tennis Elbow Evaluation Scale (PRTEE) scores significantly decreased after 2 weeks and after 8 weeks in the US group and ESWT groups, and after 8 weeks in the KT group (P < 0.05). Common extensor tendon (CET) thicknesses significantly decreased after 8 weeks in only the ESWT group (P < 0.05).

Conclusion

The US therapy, KT, and ESWT are effective in reducing pain and improving functionality. However, none of these treatment methods were found to be superior to others in reducing the pain and improving functionality.

Tennis elbow, study protocol for a randomized clinical trial: needling with and without platelet-rich plasma after failure of up-to-date rehabilitation

Background

The conservative management of lateral epicondylitis is known to be a difficult-to-treat annoying condition. A treatment with platelet-rich plasma (PRP) is often performed, but its efficacy remains controversial.

Methods

This study is a single-center, randomized double-blind controlled trial, preceded by a case series. All the 232 planned patients of the case series will undergo an up-to-date comprehensive rehabilitation program, including focused extracorporeal shock waves therapy. This rehabilitation program is expected to have a maximum success rate 75%. It is therefore aimed to allocate a minimum of 58 patients with rehabilitation failure into the 1:1 randomized trial. Stratification is planned on age and lesion pattern. The masking will be quadruple (Participant, Care Provider, Investigator & Outcome Assessor). The patients will undergo an ultrasound (US)-guided needling combined with either PRP (intervention group) or saline (control group). The primary endpoint will be the pain improvement from baseline (month 0) at 3 months on a 0–10 visual analog scale (VAS) during a maximal strength isometric contraction of the extensor carpialis brevis muscle. The main secondary endpoints will include the rehabilitation success rate and improvements from baseline at 3, 6, and 12 months of the following outcomes: (i) Single Assessment Numeric Evaluation (SANE) score, (ii) Patient-Rated Tennis Elbow Evaluation (PRTEE) score, (iii) maximal grip strength on Jamar test, and (iv) the ultrasonographic evaluation of the US of the epicondylar tendons.

Discussion

The study results will provide insight into the effect of PRP as adjuvant therapy to tendon fenestration, and may contribute to identify the best preceding and concomitant rehabilitation protocol.

Trial registration

ClinicalTrials.gov NCT03987256. Registered on 20 August 2019.

Does the Type of Extracorporeal Shock Therapy Influence Treatment Effectiveness in Lateral Epicondylitis? A Systematic Review and Meta-analysis

BACKGROUND

Extracorporeal shock wave therapy (ESWT) has been used in various musculoskeletal disorders, including lateral epicondylitis. However, in 2005, a meta-analysis of randomized controlled trials showed that ESWT provides minimal or no benefit in terms of pain and function in patients with lateral epicondylitis. Since the review, several randomized controlled trials including different types of ESWT such as radial type for lateral epicondylitis have been published. Investigations of the effect modifiers such as symptom and follow-up duration on the effects of ESWT on lateral epicondylitis have not been performed.

QUESTIONS/PURPOSES

(1) Does ESWT reduce pain and improve grip strength in patients with lateral epicondylitis? (2) Which type of ESWT, radial or focused, is more effective? (3) Is the duration of symptoms associated with the efficacy of ESWT for lateral epicondylitis? (4) Do improvements in pain scores remain in patients with longer follow-up?

METHODS

The PubMed, Embase, and Cochrane Central Register of Controlled Trials databases were searched up to July 2019 for articles published in English or Korean. Studies were included if patient allocation was randomized, the sample was composed of patients with lateral epicondylitis, interventions were ESWT (focused or radial), comparison group only received sham stimulation or no additional treatment, and the study outcome was pain intensity or grip strength. The quality of the evidence was assessed using the Cochrane risk of bias tool. Twelve studies including 1104 participants fulfilled the inclusion criteria and were included in the meta-analysis. The mean difference for pain reduction and improvement in grip strength was calculated.

RESULTS

The meta-analysis showed no clinically important difference in the VAS score (2.48 ± 7.55 versus 3.17 ± 9.78, mean difference -0.68 [95% confidence interval -1.17 to -0.19]; p = 0.006) and grip strength (38.02 ± 70.56 versus 34.85 ± 108.26, mean difference 3.33 [95% CI 0.93 to 5.73]; p = 0.007) after ESWT relative to the comparison group's score. Even though radial ESWT showed more improvement than focused, the mean difference for VAS did not exceed the minimal clinically important differences threshold. There were no clinically important effects on the VAS scores of patients with lateral epicondylitis (2.78 ± 5.57 versus 3.92 ± 6.29, mean difference -1.13 [95% CI -1.84 to -0.42]; p = 0.002) and focused ESWT did not improve pain in patients with lateral epicondylitis. In the subgroup analysis, ESWT was effective in patients with a symptom duration of more than 6 months (2.28 ± 8.48 versus 3.31 ± 11.81, mean difference -0.95 [95% CI -1.75 to -0.15]; p = 0.02) but not for those with shorter symptom duration. The effects did not last beyond 24 weeks (2.52 ± 9.19 versus 3.34 ± 5.93, mean difference -0.82 [95% CI -2.57 to 0.93]; p = 0.36).

CONCLUSIONS

ESWT did not show clinically important improvement in pain reduction and grip strength. Radial ESWT, symptom duration of longer than 6 months, and short follow-up duration (less than 24 weeks) were related to better effects. Further studies are needed to determine the appropriate protocol and elucidate the effects according to the intervention type and specific disease condition.

LEVEL OF EVIDENCE

Level I, therapeutic study.

Extracorporeal Shock Wave Therapy for Lateral Epicondylitis, Lonely or in Combination with Topical Corticosteroid; Which Approach is Superior?

Background

Lateral epicondylitis (LE) is a common musculoskeletal disorder. Although varieties of modalities have been proposed for its treatment, the outcomes are uncertain, and the responses would diminish early by the time passage. The current study was aimed to assess the efficacy of extracorporeal shock wave therapy (ESWT) merely and in combination with topical corticosteroid for the treatment of LE.

Materials and Methods

In the current double-blinded randomized clinical trial, 70 patients with the diagnosis of LE were randomly allocated to two intervention groups of ESWT merely (control group) (n=35) or ESWT plus topical corticosteroid (intervention group) (n=35). The ESWT was performed weekly for three weeks. Topical clobetasol was utilized within 30 minutes before ESWT for the intervention group, while Vaseline gel was used in a similar pattern for controls. Pain based on a visual analog scale (VAS), handgrip strength (HGS) and the Patient-Rated Tennis Elbow Evaluation (PRTEE) were assessed for the patients before the intervention, following the intervention cessation, and within two months post-intervention.

Results

Statistically significant improvement was found following both interventions in terms of pain, HGS, and function (P-value<0.001 for all), while the comparison of the two interventions, ESWT, merely versus in combination with topical clobetasol, revealed insignificant difference (P-value>0.05).

Conclusion

The findings of our study are in favor of ESWT use either merely or in combination with topical steroids for the treatment of LE, while the comparison of the two techniques revealed insignificant differences.

The effects of shock wave and dry needling on active trigger points of upper trapezius muscle in patients with non-specific neck pain: A randomized clinical trial

BACKGROUND

Chronic neck pain is associated with various myofascial trigger points (MTrPs).

OBJECTIVE

A single-blind randomized clinical trial was designed to compare the effects of extracorporeal shock wave therapy (ESWT) with dry needling (DN) techniques on the upper trapezius muscle trigger point in patients with non-specific neck pain (NSNP).

METHODS

Seventy patients with NSNP and active MTrPs of the upper trapezius muscle were randomly divided into two groups: an ESWT group (n= 35) and a DN group (n= 35). Treatment sessions were performed for three weeks and all participants received related intervention once a week. The outcome measures were pain intensity, measured by a numeric pain rating scale (NPRS), pain pressure threshold (PPT), measured with a digital algometer, and functional disability, evaluated by using the neck disability index (NDI).

RESULTS

NPRS and NDI were significantly decreased in the DN group and ESWT group (P< 0.05). Also, the PPT was significantly increased in the DN group and ESWT. However, there was no significant difference in pain intensity, NDI, and the PPT between the two groups (P⩾ 0.05).

CONCLUSION

Both ESWT and DN can be employed to treat MTrPs of the upper trapezius muscle in patients with NSNP.

Long-term Effects of Extracorporeal Shock Wave Therapy on Poststroke Spasticity: A Meta-analysis of Randomized Controlled Trials

OBJECTIVE

The purpose of this meta-analysis was to assess the long-term effects of extracorporeal shock wave therapy (ESWT) on post-stroke spasticity.

DATA SOURCES

An electronic search of EMBASE, MEDLINE, and Cochrane Central Register of Controlled Trials (CENTRAL) with hand search of relevant papers were performed on 20 June 2019.

REVIEW METHODS

This study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We searched the literature for randomized controlled trials of ESWT in stroke patients with spasticity. The primary outcome was the Modified Ashworth Scale (MAS) grade, and the second outcomes were the Visual Analogue Scale (VAS), range of motion (ROM) of joint, the Fugl-Meyer assessment (FMA) grade and adverse events. Two authors independently extracted data, assessed trial eligibility and risk of bias. Meta-analyses were performed using RevMan 5.3 software.

RESULTS

We extracted data from 8 randomized controlled trials (301 participants). At long-term follow-up, ESWT significantly reduced MAS (Weighted Mean Difference (WMD) = -.36, 95% confidence interval (CI) = -.53 to -.19, I² = 68%; P < .001) and VAS (WMD = -.94, 95% CI = -1.51 to -.37, I² = 15%; P = .001), enhanced ROM (WMD = 5.97, 95% CI = 2.76 to 9.18, I² = 0%; P < .001) and FMA (WMD = 1.26, 95% CI = .29 to 2.24, I² = 96%; P = .01).

CONCLUSIONS

ESWT showed long-term effects in relieving spasticity, while reducing pain, enhancing ROM and motor function in stroke patients.

Vibration therapy versus standard treatment for tennis elbow: A randomized controlled study

AIM

To determine whether a mechanical, high-frequency vibration device (Tenease^™) can improve pain and function for the treatment of tennis elbow (TE), compared with standard treatment.

METHODS

Adults presenting to an elbow clinic with a clinical diagnosis of TE were randomized to standard treatment with physiotherapy, activity modification and analgesia or standard treatment plus Tenease therapy. Tenease therapy consisted of a 6-week period of treatment using the Tenease device with three 10-min episodes each day. The primary outcome measure was the quick Disabilities of the Arm, Shoulder and Hand score at 6 months, with scores also taken at 6 weeks. Secondary outcome measures were the Patient Rated Tennis Elbow Evaluation Score and EuroQol 5-Dimension Visual Analogue Scale at the same time points.

RESULTS

Fifty-four patients were recruited into the study. Following randomization and initial dropout, 18 patients were included in the standard group and 27 in the Tenease group. Both groups reported improvements in primary outcome measure scores. The control group had a mean score of 44.3 (standard deviation (SD) = 18.8) at baseline, which dropped to 31.2 (SD = 17.2) at 6 months ( p = 0.002). The Tenease group had a mean score of 43.2 (SD = 22.7) at baseline, which dropped to 23.4 (SD = 15.0) at 6 months ( p = 0.064). Similar improvements were seen in secondary outcome measures with none reaching statistical significance. There were no statistically significant differences seen between the primary outcome scores at 6 weeks ( p = 0.9) or 6 months ( p = 0.5). No complications were noted in either group.

CONCLUSIONS

Vibration therapy did not result in any statistically significant improvement in functional outcome scores compared to standard treatment for TE. It is important to note that this was a relatively small cohort and a high dropout rate was observed.

Effects of Extracorporeal Shock Wave Therapy on Distraction Osteogenesis in Rat Mandible

BACKGROUND

Distraction osteogenesis has widespread clinical use in the treatment of congenital and acquired craniofacial deformities. Nonetheless, during the prolonged consolidation period, the newly regenerated bone carries the risk of complications. A known method for enhancing bone healing is extracorporeal shock wave therapy, which has been shown to induce neovascularization and promote tissue regeneration. The authors investigated whether extracorporeal shock wave therapy can accelerate bony consolidation and regeneration in distraction osteogenesis of the rat mandible and at which stage of distraction osteogenesis it should be applied.

METHODS

Twenty-four male Sprague-Dawley rats were subjected to distraction osteogenesis of the right mandible (latency period, 3 days; distraction period, 10 days; 0.5 mm/day). Experimental groups consisted of the following: group I (control), no extracorporeal shock wave therapy; group II, extracorporeal shock wave therapy (0.18 mJ/mm(2)) at the latency period; and group III, extracorporeal shock wave therapy (0.18 mJ/mm(2)) at the consolidation period. Explants were removed for evaluation after 4 weeks of consolidation.

RESULTS

Histologic evaluation showed well-developed cortical cortex and a higher degree of bone formation and mature bone in group III; micro-computed tomography showed significantly increased bone mineral density, bone volume fraction, and trabecular thickness; immunohistochemistry demonstrated significantly increased expression of bone morphogenetic protein-2, vascular endothelial growth factor, and proliferating cell nuclear antigen.

CONCLUSION

Extracorporeal shock wave therapy application at the consolidation period during distraction osteogenesis in the rat mandible enhances bone formation and osteogenic and angiogenic growth factors, improves bone mechanical properties, and accelerates bone mineralization.

Comparison of extracorporeal shock-wave therapy and wrist-extensor splint application in the treatment of lateral epicondylitis: a prospective randomized controlled study

Background

Extracorporeal shock-wave therapy (ESWT) and wrist-extensor splints (WESs) are two commonly used methods in the treatment of lateral epicondylitis. In this study, the efficacy of these two methods was compared.

Methods

The study was planned as a prospective randomized controlled study. A total of 67 patients were enrolled. The patients were divided into two groups: group 1 received ESWT (32 patients) and group 2 received WES (35 patients). Patients in group 1 underwent four sessions of ESWT once every week. In each session, an ESWT device at 10–12 Hz, 2,000 pulses, and 1.6–1.8 bar pressure was used. Patients in group 2 used a wrist splint, holding the wrist at 30°–45° extension for 4 weeks. Patients were assessed for handgrip strength, pain at rest, pain while working, and quality of life. Data were collected before and after treatment (at weeks 4, 12, and 24). A visual analog scale was used to evaluate pain at rest and while working, a hand dynamometer for handgrip strength, subscales of the SF36 Health Survey to evaluate quality of life, and the Turkish version of the patient-rated tennis-elbow evaluation was used to evaluate functioning of the affected arm during various daily life activities.

Results

In both ESWT and WES groups, although there were considerably significant improvements (P<0.001) in the parameters evaluated (pain at rest and while working, handgrip strength, Patient-Rated Tennis Elbow Evaluation, Nirschl score, and SF36 subscales) were observed at 4, 12, and 24 weeks compared to pretreatment values, there was no statistically significant difference between the two groups in terms of our evaluation parameters at the three time points (P>0.05).

Conclusion

Both ESWT and WES applications were found to yield significantly superior results when compared to pretreatment values. In comparison of the two groups, on the other hand, there was no statistically significant difference.

Extracorporeal shock wave therapy with low-energy flux density inhibits hypertrophic scar formation in an animal model

Hypertrophic scar is characterized by excessive deposits of collagen during skin wound healing, which could become a challenge to clinicians. This study assessed the effects of the extracorporeal shock wave therapy (ESWT) on hypertrophic scar formation and the underlying gene regu-lation. A rabbit ear hypertrophic scar model was generated and randomly divided into three groups: L-ESWT group to receive L-ESWT (energy flux density of 0.1 mJ/mm2), H-ESWT (energy flux density of 0.2 mJ/mm2) and sham ESWT group (S-ESWT). Hypertrophic scar tissues were then collected and stained with hematoxylin and eosin (H&E) and Masson's trichrome staining, respectively, to assess scar elevation index (SEI), fibroblast density and collagen fiber arrangement. Expression of cell proliferation marker proliferating cell nuclear antigen (PCNA) and α-smooth muscle actin (α-SMA) were assessed using RT-PCR and immunohistochemistry in hypertrophic scar tissues. H&E staining sections showed significant reduction of SEI and fibroblast density in both ESWT treatment groups compared to S-ESWT, but there was no dramatic difference between L-ESWT and H-ESWT groups. Masson's trichrome staining showed that collagen fibers were more slender and broader and oriented in parallel to skin surface after administration of ESWT compared to control tissues. At the gene level, PCNA‑positive fibroblasts and α-SMA-positive myofibroblasts were significantly decreased after L-ESWT or H-ESWT compared to the controls. Furthermore, there was no significant difference in expression of PCNA mRNA between L-ESWT or H-ESWT and S-ESWT, whereas expression of α-SMA mRNA significantly decreased in L-ESWT compared to that of H-ESWT and S-ESWT (P=0.002 and P=0.030, respectively). In conclusion, L-ESWT could be effective on suppression of hypertrophic scar formation by inhibition of scar elevation index and fibroblast density as well as α-SMA expression in hypertrophic scar tissues of the rabbit model.

Low-energy versus middle-energy extracorporeal shockwave therapy for the treatment of snapping scapula bursitis

OBJECTIVE

Extracorporeal shockwave therapy (ESWT) has been used successfully in treatment of musculoskeletal disorders. Our objective was to assess the effectiveness of low versus middle-energy ESWT on snapping scapula bursitis.

METHODS

Thirty-five patients, divided into two groups, group (L), received low-energy ESWT, group (M) received middle-energy ESWT. Groups were evaluated at 1,3,6 and 12 months using the Visual Analogue Scale (VAS), the Constant-Murley scoring (CMS) and the Roles and Maudsley criteria.

RESULTS

In groups (L) and (M), VAS average values after 1,3,6 months and one year were (43±5.17, 38±4.33, 28±4.18 and 19±3.39) and (37±4.85, 26±4.74, 21±4.45 and 7±3.42) respectively. At six and twelve months, statistical difference was detected, P (0.034, 0.026) respectively. After one year of completing the treatment, the average values of CMS were (83.5±6.44 and 91±5.33) respectively, P=0.046. Roles and Maudsley criteria demonstrated that, patients in group (L), 6 (35%) excellent, 5 (29%) good, 4 (24%) acceptable and 2 (12%) had poor results. Whereas, patients in group (M), 11 (61%) excellent, 3 (17%) good, 3 (17%) acceptable and 1 (5%) had poor results.

CONCLUSION

Although low-energy ESWT showed good early-term results, but middle-energy ESWT protocol demonstrated better early-term, Mid-term, and late-term results.

Comparison of treatment effects on lateral epicondylitis between acupuncture and extracorporeal shockwave therapy

Background

Lateral epicondylitis is one of the most common overuse injuries, and has been reported to reduce function and affect daily activities. There is no standard therapy for lateral epicondylitis. In Hong Kong, acupuncture and extracorporeal shockwave therapy (ESWT) have been popular in treating lateral epicondylitis in recent years.

Objective

This study is to compare the treatment effects of acupuncture and ESWT on lateral epicondylitis.

Methods

In this study, we evaluated 34 patients (34 elbows) with lateral epicondylitis. Seventeen patients were treated by 3-week ESWT, one session per week. Another 17 were treated by 3-week acupuncture therapy, two sessions per week. The outcome measures included pain score by visual analogue scale, maximum grip strength by Jamar dynamometer, and level of functional impairment by disability of arms, shoulders, and hands questionnaire. Participants were assessed at three time points: baseline; after treatment; and 2-week follow-up.

Results

The two treatments showed no significant difference at any assessment time-point. Both treatment groups had significant improvement in pain score in longitudinal comparisons. No significant difference was found in maximum grip strength and functional impairment in either treatment group, but a trend of improvement could be observed. In addition, improvement in pain relief stopped when treatment ended for either groups.

Conclusions

The treatment effects of acupuncture and ESWT on lateral epicondylitis were similar. The pain relief persisted for at least two weeks after treatment.

Lateral elbow tendinopathy: Evidence of physiotherapy management

Lateral elbow tendinopathy (LET) is a common musculoskeletal/sports injury. A plethora of physiotherapy techniques has been proposed in the management of LET. The exercise programme is the most common treatment in the management of LET. The optimal protocol of exercise programme is still unknown. The effectiveness of the exercise programme is low when it is applied as monotherapy. Therefore, exercise programme is combined with other physiotherapy modalities such as soft tissue techniques, external support, acupuncture, manual therapy and electrotherapy, in the treatment of LET. Future research is needed to determine which treatment strategy combined with exercise programme will provide the best results in LET rehabilitation.