Effectiveness of Two Electrotherapy Techniques to Treat Subacromial Impingement Syndrome
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 42
- 试验地点
- 2
- 主要终点
- Shoulder functionality
研究概览
简要总结
Objective: The investigators aimed to compare the effectiveness of transcutaneous electrical nerve stimulation (TENS) and interferential currents (IC) to improve shoulder functionality and to reduce perceived pain in patients with subacromial impingement syndrome (SIS). Design: Thirty-six patients with unilateral shoulder pain and diagnosed as having SIS were randomly assigned into two groups: TENS (n=18; 51±7 years) and IC (n=18; 47±6 years). Patients in both groups received fifteen 30-min sessions of the assigned treatment for a period of 3 weeks. Before and after the treatment, shoulder pain was measured using a 100-mm visual analog scale and shoulder functionality was measured using the Constant-Murley scale.
详细描述
Subjects
The subjects for this study were recruited from a waiting list from patients with acute shoulder pain at the Almendrales Medicine and Physiotherapy Center (Madrid, Spain). To be included in the list they had to be older than 18 years and have had unilateral shoulder pain for more than 1 month. Potential participants were then examined by an independent specialist and the diagnosis of SIS was made according to the Hawkins and Jobe tests. The use of X-ray, ultrasonography and magnetic resonance imaging permitted objective diagnoses of SIS and the exclusion of patients with other shoulder pathologies. With these inclusion criteria, a total of 63 patients were recruited for the experiment. The following participants were excluded from the investigation: individuals with rotator cuff tears or calcification; individuals with the presence of acute trauma; patients who were receiving treatment for their SIS with another method; patients with previous surgery or intra-articular injections; individuals with contraindications against electrotherapy. Ethical approval for this experiment was previously obtained by the local Institutional Review and all participants signed an informed consent prior to enrolling in the investigation.
Treatment groups
The experimental design was a randomized and double-blind clinical trial. After preliminary examination, the patients were randomly assigned into two groups: transcutaneous electrical nerve stimulation (TENS) and interferential currents (IC). A set of sealed and sequentially numbered opaque envelopes was used for group assignment. The study was double-blind because the examiner had no contact with the patient during the duration of the treatment and patients were not informed about the electrotherapy technique they received during the investigation.
Intervention
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •The subjects for this study were recruited from a waiting list from patients with acute shoulder pain at the Almendrales Medicine and Physiotherapy Center (Madrid, Spain).
- •To be included in the list they had to be older than 18 years and have had unilateral shoulder pain for more than 1 month.
- •Potential participants were then examined by an independent specialist and the diagnosis of SIS was made according to the Hawkins and Jobe tests.
- •The use of X-ray, ultrasonography and magnetic resonance imaging permitted objective diagnoses of shoulder impingement syndrome and the exclusion of patients with other shoulder pathologies.
排除标准
- •The following participants were excluded from the investigation: individuals with rotator cuff tears or calcification; individuals with the presence of acute trauma; patients who were receiving treatment for their shoulder pain with another method; patients with previous surgery or intra-articular injections; individuals with contraindications against electrotherapy
研究组 & 干预措施
Transcutaneous nerve stimulation
The group with transcutaneous nerve stimulation (TENS) received electrical stimulation for 15 sessions at a frequency of 80 Hz and with a pulse width of 150 ns.
The group with TENS received electrical stimulation by using an approved electrotherapy device (Endomed 182, Enraf-nonius, Germany). The TENS was applied by using 4 surface electrodes (5x5 cm Prim-Trode, Spain) into two channels: supraspinatus fossa and the insertion of the rotator cuff (channel 1) and "V" deltoid " (channel 2).
干预措施: Transcutaneous nerve stimulation (Device)
Interferential Currents
The group with Interferential Currents (IC) received a base frequency of 4000 Hz by using the same approved electrotherapy device than the TENS group (Endomed 182, Enraf-nonius, Germany).
干预措施: Interferential Currents (Device)
结局指标
主要结局
Shoulder functionality
时间窗: Before and after the 3 weeks of electrotherpy treatment
Functional status in the shoulder joint was evaluated by using the Constant-Murley scale. This scale is valid to assess the overall functionality of a normal, a diseased or a treated shoulder. In this scale, 35% of the total value was allocated from subjective assessments of pain (20%) and self-evaluation of activities of daily living (15%; including shoulder pain during sleeping, dysfunction during free time or sports and dysfunction during working activities). The remaining 65% of the total value came from objective measures of range of movement and shoulder strength. Shoulder functionality was measured by using a 0-100 point scale. The pre-to-post treatment shoulder evaluation was performed by the same independent experimenter using the same instruments.
Shoulder pain
时间窗: Before and after the 3 weeks of electrotherpy treatment
Shoulder pain was evaluated before and the day after the end of treatments by using a 100 mm visual analog pain scale.
次要结局
未报告次要终点