Effects of acupuncture and sham acupuncture in addition to physiotherapy in patients undergoing bilateral total knee arthroplasty — a randomized controlled trial

Combining various acupuncture therapies with multimodal analgesia to enhance postoperative pain management following total knee arthroplasty: a network meta-analysis of randomized controlled trials

Objective

This study aims to evaluate the efficacy and safety of various acupuncture treatments in conjunction with multimodal analgesia (MA) for managing postoperative pain and improving knee function in patients undergoing total knee arthroplasty (TKA), based on the findings from clinical research indicating the potential benefits of acupuncture-related therapies in this context.

Methods

We searched Web of Science, PubMed, SCI-hub, Embase, Cochrane Library, China Biology Medicine (CBM), China National Knowledge Infrastructure (CNKI), Wanfang Data, and Chinese Scientific Journal Database (VIP) to collect randomized controlled trials of acupuncture-related therapies for post-TKA pain. After independent screening and data extraction, the quality of the included literature was evaluated. The potential for bias in the studies incorporated in the analysis was assessed according to the guidelines outlined in the Cochrane Handbook 5.1. Network meta-analysis (NMA) was conducted using RevMan 5.4 and Stata 16.0 software, with primary outcome measures including visual analog scale (VAS), pain pressure threshold (PPT), hospital for special surgery knee score (HSS), and knee joint range of motion (ROM). Furthermore, the interventions were ranked based on the SUCRA value.

Results

We conducted an analysis of 41 qualifying studies encompassing 3,003 patients, examining the efficacy of four acupuncture therapies (acupuncture ACU, electroacupuncture EA, transcutaneous electrical acupoint stimulation TEAS, and auricular acupoint therapy AAT) in conjunction with multimodal analgesia (MA) and MA alone. The VAS results showed no significant difference in efficacy among the five interventions for VAS-3 score. However, TEAS+MA (SMD: 0.67; 95%CI: 0.01, 1.32) was more effective than MA alone for VAS-7 score. There was no significant difference in PPT score among the three interventions. ACU + MA (SMD: 6.45; 95%CI: 3.30, 9.60), EA + MA (SMD: 4.89; 95%CI: 1.46, 8.32), and TEAS+MA (SMD: 5.31; 95%CI: 0.85, 9.78) were found to be more effective than MA alone for HSS score. For ROM score, ACU + MA was more efficacious than EA + MA, TEAS+MA, and AAT + MA, MA. Regarding the incidence of postoperative adverse reactions, nausea and vomiting were more prevalent after using only MA. Additionally, the incidence of postoperative dizziness and drowsiness following ACU + MA (OR = 4.98; 95%CI: 1.01, 24.42) was observed to be higher compared to that after AAT + MA intervention. Similarly, the occurrence of dizziness and drowsiness after MA was found to be significantly higher compared to the following interventions: TEAS+MA (OR = 0.36; 95%CI: 0.18, 0.70) and AAT + MA (OR = 0.20; 95%CI: 0.08, 0.50). The SUCRA ranking indicated that ACU + MA, EA + MA, TEAS+MA, and AAT + MA displayed superior SUCRA scores for each outcome index, respectively.

Conclusion

For the clinical treatment of post-TKA pain, acupuncture-related therapies can be selected as a complementary and alternative therapy. EA + MA and TEAS+MA demonstrate superior efficacy in alleviating postoperative pain among TKA patients. ACU + MA is the optimal choice for promoting postoperative knee joint function recovery in TKA patients. AAT + MA is recommended for preventing postoperative adverse reactions.

Systematic review registration

https://www.crd.york.ac.uk/, identifier (CRD42023492859).

The Role of Acupuncture in Postoperative Pain Management of Patients Undergoing Knee Arthroplasty Surgery: A Systematic Review and Meta-Analysis

»

Acupuncture after total knee arthroplasty (TKA) may decrease the incidence of postoperative nausea and vomiting (PONV).

»

Acupuncture did not decrease visual analog scale (VAS) scores in the 0 to 48-hour interval but did decrease VAS scores at >48 hours after TKA.

»

The heterogeneity of the studies prevented meta-analysis of opioid use with acupuncture after TKA; a systematic review demonstrated mixed results.

»

Additional studies are needed to investigate opioid reduction with acupuncture after TKA.

Acupuncture Versus Sham Acupuncture: A Meta-Analysis on Evidence for Longer-term Effects of Acupuncture in Musculoskeletal Disorders

EDITORIAL NOTE

The original Letter to the Editor prepared by Jones et al was based on the initial electronic version then contained several important procedural errors that resulted in erroneous conclusions as noted by Jones et al in their original Letter. Subsequently, the authors of the Letter to the Editor were notified of the corrections and they then prepared the revised Letter to the Editor published here. Jones et al did note a remaining error in Table 5 of their corrected manuscript. Based on Jones et al's observation, Lenoir et al were notified of an error on Table 5 and have addressed this in the current version of their paper published in this issue. We appreciate the input of the authors of the letter and the positive response of the author(s) of this article. Dennis C. Turk, PhD Editor-in-Chief OBJECTIVE:: Acupuncture is a common modality in the therapy of musculoskeletal disorders. The evidence for acupuncture has been examined frequently, but a clear synthesis of previous research is currently lacking. This meta-analysis aimed to summarize the evidence for nonimmediate effects of acupuncture on pain, functionality, and quality of life in patients with musculoskeletal disorders, when compared with sham acupuncture.

METHODS

Search results from PubMed and Web of Science were brought together. All screening procedures were executed twice by 2 independent researchers. The pooled standardized mean difference (SMD) with its confidence interval (CI) was estimated at follow-up at <1 month, 1 to 3 months, 3 to 6 months, and >6 months.

RESULTS

For pain, the SMD equalled respectively -0.47 (CI -0.76 to -0.19), -0.27 (CI -0.44 to -0.11), -0.32 (CI -0.51 to -0.13) and -0.12 (CI -0.36 to 0.11) for <1 month, 1 to 3 months, 3 to 6 months, and >6 months follow-up. For functionality, the pooled SMD equalled -0.43 (CI -0.76 to -0.10), -0.41 (CI -0.76 to -0.05), 0.07 (CI -0.22 to 0.36), and -0.13 (-0.46 to 0.19). In the area of QOL, pooled SMD of respectively 0.20 (CI 0.04 to 0.35), 0.19 (CI -0.01 to 0.39), 0.02 (CI -0.09 to 0.14) and -0.04 (CI -0.25 to 0.16) were obtained.

DISCUSSION

A significant difference in therapy effect, favoring acupuncture, was found for pain at <1 month, 1 to 3 months, and 3 to 6 months, as well as on quality of life at <1 month, and on functionality at <1 month and 1 to 3 months.

Assessing outcome in postoperative pain trials: are we missing the point? A systematic review of pain-related outcome domains reported in studies early after total knee arthroplasty

ABSTRACT

The management of acute postoperative pain remains suboptimal. Systematic reviews and Cochrane analysis can assist with collating evidence about treatment efficacy, but the results are limited in part by heterogeneity of endpoints in clinical trials. In addition, the chosen endpoints may not be entirely clinically relevant. To investigate the endpoints assessed in perioperative pain trials, we performed a systematic literature review on outcome domains assessing effectiveness of acute pain interventions in trials after total knee arthroplasty. We followed the Cochrane recommendations for systematic reviews, searching PubMed, Cochrane, and Embase, resulting in the screening of 1590 potentially eligible studies. After final inclusion of 295 studies, we identified 11 outcome domains and 45 subdomains/descriptors with the domain "pain"/"pain intensity" most commonly assessed (98.3%), followed by "analgesic consumption" (88.8%) and "side effects" (75.3%). By contrast, "physical function" (53.5%), "satisfaction" (28.8%), and "psychological function" (11.9%) were given much less consideration. The combinations of outcome domains were inhomogeneous throughout the studies, regardless of the type of pain management investigated. In conclusion, we found that there was high variability in outcome domains and inhomogeneous combinations, as well as inconsistent subdomain descriptions and utilization in trials comparing for effectiveness of pain interventions after total knee arthroplasty. This points towards the need for harmonizing outcome domains, eg, by consenting on a core outcome set of domains which are relevant for both stakeholders and patients. Such a core outcome set should include at least 3 domains from 3 different health core areas such as pain intensity, physical function, and one psychological domain.

Power Spectrum Features of Acupoint Bioelectricity Signal

Background

Since the 1950s, many studies have been conducted on the electrical properties of acupuncture points (acupoints), especially their bio-resistance characteristics. Results of such studies have been inconclusive due to factors such as sweat gland density and compounding factors of applying electrical stimulation. In this study, a power spectrum instrument was used to assess the power spectrum and power of acupoints and nonacupoints without electrical stimulation. Using such instrumentation, specificity of electrical signals of acupoints was also explored.

Methods

Thirty-six subjects (29 females, 7 males) participated in the study. Stainless steel acupuncture needles (diameter 0.35 mm; length 50 mm) were used. Five acupoints were tested: ST 36, SP 6, GB 39, GB 37, and K I9. Four control sites 0.5–1.0 cm adjacent to each acupoint were chosen. After needle insertion into the acupoint and control sites, the needles were attached to the power spectrum instrument to acquire any electrical signals. Acquire signals were analyzed using self-written software.

Results

Power spectrum difference between acupoint and nonacupoint signals was 0–2 Hz. Results of t-test or signed rank sum test (α = 0.05) found that electrical signals between acupoints and nonacupoints were markedly different (P < 0.05).

Conclusion

Acupoint bioelectricity signals are higher than adjacent nonacupoints. The most significant difference is distributed between 0 Hz and 2 Hz.

Efficacy and safety of acupuncture treatment as an adjunctive therapy after knee replacement: Single-center, pragmatic, randomized, assessor blinded, pilot study

INTRODUCTION

Total knee replacement (TKR) is a surgical procedure that is being increasingly performed as a result of population aging and the increased average human life expectancy in South Korea. Consistent with the growing number of TKR procedures, the number of patients seeking acupuncture for relief from adverse effects, effective pain management, and the enhancement of rehabilitative therapy effects and bodily function after TKR has also been increasing. Thus, an objective examination of the evidence regarding the safety and efficacy of acupuncture treatments is essential. The aim of this study is to verify the hypothesis that the concurrent use of acupuncture treatment and usual care after TKR is more effective, safe, and cost-effective for the relief of TKR symptoms than usual care therapy alone.

METHODS/DESIGN

This is an open-label, parallel, assessor-blinded randomized controlled trial that includes 50 patients with TKR. After screening the patients and receiving informed consent, the patients are divided into two groups (usual care + acupuncture group and usual care group); the patients will then undergo TKR surgery and will be hospitalized for 2 weeks. The patients will receive a total of 8 acupuncture treatments over 2 weeks after surgery and will be followed up at 3, 4, and 12 weeks after the end of the intervention. The primary outcome is assessed using the Korean version of the Western Ontario and McMaster Universities Arthritis Index (K-WOMAC), and the secondary outcome is measured using the Numerical Rating Scale (NRS), Risk of Fall, and Range of Motion (ROM). Moreover, the cost per quality-adjusted life years (QALYs) is adopted as a primary economic outcome for economic evaluation, and the cost per NRS is adopted as a secondary economic outcome.

ETHICS AND DISSEMINATION

This trial has received complete ethical approval from the Ethics Committee of Catholic Kwandong University International St. Mary's Hospital (IS17ENSS0063). We intend to submit the results to a peer-reviewed journal and/or conferences.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT03633097.

A randomised controlled trial of laser acupuncture improves early outcomes of osteoarthritis patients' physical functional ability after total knee replacement

BACKGROUND AND PURPOSE

Total knee replacement is the most effective intervention for late-stage osteoarthritis; however, a major concern is postoperative recovery of physical function. This randomised controlled trial evaluated the effects of acupuncture with low-level laser therapy (ALLLT) on early outcomes of physical function after total knee replacement.

MATERIALS AND METHODS

Eighty-two osteoarthritis patients were recruited and randomly assigned to the experimental group receiving ALLLT or the control group receiving sham ALLLT without laser beam output. Physical function was evaluated by assessing knee joint flexion and stiffness on days 1, 2, and 3 after total knee replacement.

RESULTS

Generalised estimating equations revealed a significant difference between the two groups in joint flexion. The experimental group displayed better joint flexion and less stiffness on days 2 and 3 than did the control group.

CONCLUSION

ALLLT can facilitate the recovery of physical function, as evidenced by knee joint flexion and stiffness, in patients receiving total knee replacement.

Acupuncture for Rehabilitation After Total Knee Arthroplasty: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Background: There is an increasing interest in acupuncture for promoting post-operative rehabilitation, but the effectiveness of acupuncture for rehabilitation after total knee arthroplasty (TKA) remains controversial.

Objective: This study aims to investigate the effect of acupuncture on rehabilitation after TKA.

Methods: Database searches of PubMed, EMBASE, CINAHL, and China National Knowledge Infrastructure (CNKI) were conducted to obtain articles published until August 2020. All identified articles were screened, and data from each included study were extracted independently by two investigators. Meta-analysis was performed to examine the effects of acupuncture on pain, range of knee motion, function, and nausea/vomiting after TKA.

Results: A total of nine randomized clinical trials were included according to the inclusion and exclusion criteria in this review. Compared with routine treatment, acupuncture combined with routine treatment showed a significantly greater pain reduction at 8, 12, 24, and 48 h post-operatively after TKA. Meanwhile, we found that the acupuncture groups showed a significant function improvement and a lower percentage of nausea/vomiting in comparison with the control groups after operation. However, acupuncture groups demonstrated no statistically significant improvement in post-operative pain at 4 h, 7 days, 14 days, and more than 21 days, and no significant difference in range of knee motion was observed between the acupuncture groups and control groups after surgery.

Conclusions: Acupuncture, as a supplementary treatment after TKA, could improve function and reduce nausea/vomiting. However, the effect of acupuncture on pain relief may be mainly achieved within post-operative 48 h, and it had no efficacy in improving range of knee motion. More large-scale and high-quality studies are warranted.

No Effect of Acupuncture as Adjunctive Therapy for Patients with Total Knee Replacement: A Randomized Controlled Trial

Objective

Acupuncture is a low risk option in pain management following total knee replacement as an alternative to opioid analgesics. Therefore, the benefit of acupuncture as adjunct to an exercise program was investigated. Furthermore, the modifying effect of previous benefit from acupuncture was explored.

Design

Three weeks postoperatively, eligible patients were randomized to acupuncture and exercises or exercises alone.

Setting

An outpatient rehabilitation centre in the municipality of Copenhagen, Denmark.

Subjects

A total of 172 patients were included.

Methods

Main outcome was proportion of patients that reported a clinically important change in pain at night following each treatment. Secondary outcomes were change in disability measured after termination of the course of treatment and at three months follow-up. Also consumption of medication and walking distance after termination of the course of treatment were assessed.

Results

No additional benefit of acupuncture was found on any of the main outcomes. Between-group differences were non-significant in proportions of patients with a clinically important reduction of night pain (Relative Risk: 0.98; 95% Confidence Interval (CI): 0.86-1.11) or evening pain (Relative Risk: 0.94; 95% CI: 0.81-1.0.

Conclusions

Our results do not support the addition of acupuncture to routine rehabilitation. Previous benefit from acupuncture was not able to identify those likely to respond to acupuncture. Future studies to investigate whether subgroups of patients would benefit from acupuncture are needed.

Drug-Free Interventions to Reduce Pain or Opioid Consumption After Total Knee Arthroplasty: A Systematic Review and Meta-analysis

Importance

There is increased interest in nonpharmacological treatments to reduce pain after total knee arthroplasty. Yet, little consensus supports the effectiveness of these interventions.

Objective

To systematically review and meta-analyze evidence of nonpharmacological interventions for postoperative pain management after total knee arthroplasty.

Data Sources

Database searches of MEDLINE (PubMed), EMBASE (OVID), Cochrane Central Register of Controlled Trials (CENTRAL), Cochrane Database of Systematic Reviews, Web of Science (ISI database), Physiotherapy Evidence (PEDRO) database, and ClinicalTrials.gov for the period between January 1946 and April 2016.

Study Selection

Randomized clinical trials comparing nonpharmacological interventions with other interventions in combination with standard care were included.

Data Extraction and Synthesis

Two reviewers independently extracted the data from selected articles using a standardized form and assessed the risk of bias. A random-effects model was used for the analyses.

Main Outcomes and Measures

Postoperative pain and consumption of opioids and analgesics.

Results

Of 5509 studies, 39 randomized clinical trials were included in the meta-analysis (2391 patients). The most commonly performed interventions included continuous passive motion, preoperative exercise, cryotherapy, electrotherapy, and acupuncture. Moderate-certainty evidence showed that electrotherapy reduced the use of opioids (mean difference, -3.50; 95% CI, -5.90 to -1.10 morphine equivalents in milligrams per kilogram per 48 hours; P = .004; I2 = 17%) and that acupuncture delayed opioid use (mean difference, 46.17; 95% CI, 20.84 to 71.50 minutes to the first patient-controlled analgesia; P < .001; I2 = 19%). There was low-certainty evidence that acupuncture improved pain (mean difference, -1.14; 95% CI, -1.90 to -0.38 on a visual analog scale at 2 days; P = .003; I2 = 0%). Very low-certainty evidence showed that cryotherapy was associated with a reduction in opioid consumption (mean difference, -0.13; 95% CI, -0.26 to -0.01 morphine equivalents in milligrams per kilogram per 48 hours; P = .03; I2 = 86%) and in pain improvement (mean difference, -0.51; 95% CI, -1.00 to -0.02 on the visual analog scale; P < .05; I2 = 62%). Low-certainty or very low-certainty evidence showed that continuous passive motion and preoperative exercise had no pain improvement and reduction in opioid consumption: for continuous passive motion, the mean differences were -0.05 (95% CI, -0.35 to 0.25) on the visual analog scale (P = .74; I2 = 52%) and 6.58 (95% CI, -6.33 to 19.49) opioid consumption at 1 and 2 weeks (P = .32, I2 = 87%), and for preoperative exercise, the mean difference was -0.14 (95% CI, -1.11 to 0.84) on the Western Ontario and McMaster Universities Arthritis Index Scale (P = .78, I2 = 65%).

Conclusions and Relevance

In this meta-analysis, electrotherapy and acupuncture after total knee arthroplasty were associated with reduced and delayed opioid consumption.

Management of Postoperative Pain: A Clinical Practice Guideline From the American Pain Society, the American Society of Regional Anesthesia and Pain Medicine, and the American Society of Anesthesiologists' Committee on Regional Anesthesia, Executive Committee, and Administrative Council

Most patients who undergo surgical procedures experience acute postoperative pain, but evidence suggests that less than half report adequate postoperative pain relief. Many preoperative, intraoperative, and postoperative interventions and management strategies are available for reducing and managing postoperative pain. The American Pain Society, with input from the American Society of Anesthesiologists, commissioned an interdisciplinary expert panel to develop a clinical practice guideline to promote evidence-based, effective, and safer postoperative pain management in children and adults. The guideline was subsequently approved by the American Society for Regional Anesthesia. As part of the guideline development process, a systematic review was commissioned on various aspects related to various interventions and management strategies for postoperative pain. After a review of the evidence, the expert panel formulated recommendations that addressed various aspects of postoperative pain management, including preoperative education, perioperative pain management planning, use of different pharmacological and nonpharmacological modalities, organizational policies, and transition to outpatient care. The recommendations are based on the underlying premise that optimal management begins in the preoperative period with an assessment of the patient and development of a plan of care tailored to the individual and the surgical procedure involved. The panel found that evidence supports the use of multimodal regimens in many situations, although the exact components of effective multimodal care will vary depending on the patient, setting, and surgical procedure. Although these guidelines are based on a systematic review of the evidence on management of postoperative pain, the panel identified numerous research gaps. Of 32 recommendations, 4 were assessed as being supported by high-quality evidence, and 11 (in the areas of patient education and perioperative planning, patient assessment, organizational structures and policies, and transitioning to outpatient care) were made on the basis of low-quality evidence.

PERSPECTIVE

This guideline, on the basis of a systematic review of the evidence on postoperative pain management, provides recommendations developed by a multidisciplinary expert panel. Safe and effective postoperative pain management should be on the basis of a plan of care tailored to the individual and the surgical procedure involved, and multimodal regimens are recommended in many situations.

Referrals to integrative medicine in a tertiary hospital: findings from electronic health record data and qualitative interviews

OBJECTIVE

To examine patterns of, and decision-making processes, informing referrals for inpatient access to integrative medicine (IM) services at a large, acute care hospital.

DESIGN

Retrospective electronic health record review and structured qualitative interviews.

SETTING

A 630-bed tertiary care hospital with an IM service available to inpatients.

PARTICIPANTS

IM referrals of all inpatients aged ≥18 years between July 2012 and December 2014 were identified using the hospital's electronic health record. Fifteen physicians, 15 nurses and 7 administrators were interviewed to better understand roles and perspectives in referring patients for IM services.

RESULTS

In the study hospital, primary sources of referrals for IM services were the orthopaedic and neuroscience/spine service lines. While the largest absolute number of IM referrals was made for patients with lengths of stay of 3 days or fewer, a disproportionate number of total IM referrals was made for patients with long lengths of stay (≥10 days), compared with a smaller percentage of patients in the hospital with lengths of stay ≥10 days. Physicians and nurses were more likely to refer patients who displayed strong symptoms (eg, pain and anxiety) and/or did not respond to conventional therapies. IM referrals were predominantly nurse-initiated. A built-in delay in the time from referral initiation to service delivery discouraged referrals of some patients.

CONCLUSIONS

Conventional providers refer patients for IM services when these services are available in a tertiary hospital. Referral patterns are influenced by patient characteristics, operational features and provider perspectives. Nurses play a key role in the referral process. Overcoming cultural and knowledge differences between conventional and IM providers is likely to be a continuing challenge to providing IM in inpatient settings.

Acupuncture-Point Stimulation for Postoperative Pain Control: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

The purpose of this study was to evaluate the effectiveness of Acupuncture-point stimulation (APS) in postoperative pain control compared with sham/placebo acupuncture or standard treatments (usual care or no treatment). Only randomized controlled trials (RCTs) were included. Meta-analysis results indicated that APS interventions improved VAS scores significantly and also reduced total morphine consumption. No serious APS-related adverse effects (AEs) were reported. There is Level I evidence for the effectiveness of body points plaster therapy and Level II evidence for body points electroacupuncture (EA), body points acupressure, body points APS for abdominal surgery patients, auricular points seed embedding, manual auricular acupuncture, and auricular EA. We obtained Level III evidence for body points APS in patients who underwent cardiac surgery and cesarean section and for auricular-point stimulation in patients who underwent abdominal surgery. There is insufficient evidence to conclude that APS is an effective postoperative pain therapy in surgical patients, although the evidence does support the conclusion that APS can reduce analgesic requirements without AEs. The best level of evidence was not adequate in most subgroups. Some limitations of this study may have affected the results, possibly leading to an overestimation of APS effects.

Acupuncture provides short-term pain relief for patients in a total joint replacement program

OBJECTIVE

Given the risks of opioid medications, nonpharmacological strategies should be considered for total joint replacement patients. We investigated acupuncture as an adjunct therapy for postsurgical pain management in a total joint replacement program by examining which total hip and knee replacement patients elected to receive acupuncture and the effect of acupuncture on short-term pain.

DESIGN

A total joint replacement program using fast-track physiotherapy offered elective postsurgical acupuncture to all patients, at no additional cost, as an adjunct therapy to opioids for pain management.

SETTING

The Joint Replacement Center at Abbott Northwestern Hospital, a 630-bed teaching and specialty hospital in Minneapolis, Minnesota from 2010 to 2012.

SUBJECTS

Our sample included 2,500 admissions of total hip (THR) and total knee replacement (TKR) patients.

METHODS

Self-reported pain was assessed before and after acupuncture using a 0-10 scale and categorized as none/mild (0-4) and moderate/severe pain (5-10).

RESULTS

Seventy-five percent of admissions included acupuncture. Women (Odds Ratio: 1.48, 95% Confidence Interval (CI): 1.22, 1.81) had higher odds of receiving acupuncture compared to men, and nonwhite patients (Odds Ratio: 0.55, 95% CI: 0.39, 0.78) had lower odds of receiving acupuncture compared to white patients. Average short-term pain reduction was 1.91 points (95% CI: 1.83, 1.99), a 45% reduction from the mean prepain score. Forty-one percent of patients reported moderate/severe pain prior to receiving acupuncture, while only 15% indicated moderate/severe pain after acupuncture.

CONCLUSIONS

Acupuncture may be a viable adjunct to pharmacological approaches for pain management after THR or TKR.

Exercícios físicos e osteoartrose: uma revisão sistemática

INTRODUÇÃO: A osteoartrose (OA) é uma doença articular crônico-degenerativa que se evidencia pelo desgaste da cartilagem articular e que atinge frequentemente as articulações que sustentam peso, como o joelho. OBJETIVO: Relatar as principais evidências associadas ao uso do exercício físico na melhora dos sintomas decorrentes da osteoartrose em indivíduos acima de 50 anos. MATERIAIS E MÉTODOS: Trata-se de uma revisão sistemática de literatura, com a utilização das bases de dados eletrônicos de periódicos indexados: National Library of Medicine (MEDLINE - PubMed), Literatura Latino-Americana e do Caribe em Ciência da Saúde (LILACS), e a base Scientific Electronic Library Online (SciELO). RESULTADOS: Foram encontrados 1.405 artigos, selecionados nas bases de dados SciELO, LILACS, PubMed e MEDLINE; destes, 101 artigos foram selecionados. Entre as regiões acometidas pela osteoartrose, o joelho foi o local mais mencionado, seguido do joelho e quadril juntos; outras regiões foram citadas com menor recorrência. Os exercícios que tiveram maior destaque foram exercícios aquáticos, isocinéticos, treinamento de força muscular, caminhada, além da educação em saúde que também foi muito utilizada nos estudos selecionados. CONCLUSÃO: Pôde-se constatar por esta revisão que os estudos demonstram a eficácia do uso de exercícios na melhora dos sintomas decorrentes da osteoartrose, porém, não há um consenso quanto aos parâmetros de aplicação, como intensidade e duração de cada tipo de exercício.

Supervised Exercise plus Acupuncture for Moderate to Severe Knee Osteoarthritis: A Small Randomised Controlled Trial

Objectives

Although total knee replacement (TKR) is cost effective and successful in most cases, patient-reported outcome measures demonstrate 20% of people remain unsatisfied at 1 year after a technically successful procedure. Our group has previously shown that patients with severe knee osteoarthritis (OA) awaiting surgery can achieve a short-term reduction in symptom severity when treated with acupuncture, and that a trend towards improved walking distance, as a measure of function, is achieved with preoperative supervised exercise. The aim of this study was to evaluate the effect of combined acupuncture and physiotherapy on preoperative and postoperative pain and function.

Methods

A total of 56 patients awaiting TKR surgery were randomised to receive either combined physiotherapy and acupuncture or a standardised exercise and advice leaflet. Pain and function were measured primarily using the Oxford Knee Score (OKS), with assessments at baseline prior to intervention, 6 and 12 weeks after intervention and at 3 months postoperatively.

Results

Due to the introduction of the 18-week waiting times target during this study, the required sample size was not achieved. There were no significant differences demonstrated between the control and treatment groups for OKS. Seven patients withdrew from surgery because of symptomatic improvement in their knees: six from the treatment group and one from the control group (OR 7.64, 95% CI 0.86 to 68.20).

Conclusions

This study demonstrated that the use of combined acupuncture and physiotherapy in the treatment of patients with moderate to severe knee OA preoperatively did not improve patient outcome postoperatively. As the study was underpowered, a larger trial is required to examine this result further.

Auricular acupressure for managing postoperative pain and knee motion in patients with total knee replacement: a randomized sham control study

Background. Postoperative pain management remains a significant challenge for all healthcare providers. A randomized controlled trial was conducted to examine the adjuvant effects of auricular acupressure on relieving postoperative pain and improving the passive range of motion in patients with total knee replacement (TKR). Method. Sixty-two patients who had undergone a TKR were randomly assigned to the acupressure group and the sham control group. The intervention was delivered three times a day for 3 days. A visual analog scale (VAS) and the Short-Form McGill Pain Questionnaire were used to assess pain intensity. Pain medication consumption was recorded, and the knee motion was measured using a goniometer. Results. The patients experienced a moderately severe level of pain postoperatively (VAS 58.66 ± 20.35) while being on the routine PCA. No differences were found in pain scores between the groups at all points. However, analgesic drug usage in the acupressure group patients was significantly lower than in the sham control group (P < 0.05), controlling for BMI, age, and pain score. On the 3rd day after surgery, the passive knee motion in the acupressure group patients was significantly better than in the sham control group patients (P < 0.05), controlling for BMI. Conclusion. The application of auricular acupressure at specific therapeutic points significantly reduces the opioid analgesia requirement and improves the knee motion in patients with TKR.

Reducing the pain: a systematic review of postdischarge analgesia following elective orthopedic surgery

OBJECTIVE

This study aimed to determine which analgesic modalities used following discharge have the greatest efficacy in reducing postoperative pain after elective non-axial orthopedic surgery.

DESIGN AND SETTING

A systematic review was conducted using the databases CENTRAL, MEDLINE, and EMBASE, as well as clinical practice guidelines databases and trial registries. Titles and abstracts were perused by two reviewers for randomized clinical trials in English fulfilling inclusion and exclusion criteria. Quality assessments, including the Oxford Quality Score, selective reporting, and sources of funding, were also performed.

OUTCOME MEASURES

Pain intensity/relief, global patient evaluation, and use of rescue analgesia, as well as adverse events and withdrawals.

RESULTS

2,167 articles were retrieved and 23 articles were eligible for inclusion. They investigated analgesic modalities including alternative therapies (5); cyclooxygenase-2 inhibitors (3); nonselective, nonsteroidal anti-inflammatory drugs (NSAIDs) (12); opioids (2); and other pharmaceutical classes (1). Cycooxygenase-2 inhibitors and opioids demonstrated significant efficacy with minimal side effects. Most nonselective NSAIDs were effective analgesics but had a poorer side-effect profile. Alternative therapies demonstrated no significant efficacy.

CONCLUSIONS

Opioids and cyclooxygenase-2 inhibitors are effective in providing analgesia in the extended postoperative period following orthopedic surgery with a minimal side-effect profile, while nonselective NSAIDs need to be treated with caution. Homeopathy is not an effective analgesic, while acupuncture has varied evidence and effectiveness. Treatment of postoperative fatigue may also improve analgesia control. This study provides orthopedic surgeons with a basis for evidence-based prescribing of postdischarge analgesia. However, further studies to validate these results against modern reporting standards are needed.

Placebo acupuncture as a form of ritual touch healing: a neurophenomenological model

Evidence that placebo acupuncture is an effective treatment for chronic pain presents a puzzle: how do placebo needles appearing to patients to penetrate the body, but instead sitting on the skin's surface in the manner of a tactile stimulus, evoke a healing response? Previous accounts of ritual touch healing in which patients often described enhanced touch sensations (including warmth, tingling or flowing sensations) suggest an embodied healing mechanism. In this qualitative study, we asked a subset of patients in a singleblind randomized trial in irritable bowel syndrome to describe their treatment experiences while undergoing placebo treament. Analysis focused on patients' unprompted descriptions of any enhanced touch sensations (e.g., warmth, tingling) and any significance patients assigned to the sensations. We found in 5/6 cases, patients associated sensations including "warmth" and "tingling" with treatment efficacy. The conclusion offers a "neurophenomenological" account of the placebo effect by considering dynamic effects of attentional filtering on early sensory cortices, possibly underlying the phenomenology of placebo acupuncture.