NCT04553497

Brief Summary

Proximal humerus fractures (PHFs) frequently occur in the elderly and osteoporotic population, but these fractures are also common in individuals under age 60 years. Conservative treatment of PHF usually involves a short period of immobilization followed by orthopedic rehabilitation. However, the severe pain of some patients with fractures limits their participation in the exercise programme, and shoulder muscle atrophy and frozen shoulder may occur in these patients due to immobilization. There are conflicting results regarding the use of physical therapy modalities in the shoulder pain management. Interferential current (IFC) therapy is believed to be effective for the pain-relieving through several mechanisms. Although IFC has been investigated in many painful shoulder disorders, there is no reported study on the effectiveness of IFC therapy in patients with PHF. This study aimed to investigate the effectiveness of IFC added to exercise on shoulder function, pain, and disability compared with placebo in patients with conservative treated PHF. Patients were evaluated within the first week of PHF and divided into two groups to receive either IFC or sham using a simple randomization method. The orthopedic rehabilitation programme was applied to all patients three times a week for four weeks under the guidance of the same physiotherapist. IFC or sham therapy was applied three times a week for 20 minutes before each exercise session by another physiotherapist. Shoulder functions, pain (visual analogue scale), disability and range of motion was evaluated at the end of the rehabilitation program, at 6-weeks and 18-weeks post-treatment by the physiatrist (ED) who did not know which group the patients belonged to. In addition, the amount of acetaminophen usage was noted at each visit.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
35

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2014

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2014

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 15, 2015

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 15, 2015

Completed
4.9 years until next milestone

First Submitted

Initial submission to the registry

September 8, 2020

Completed
9 days until next milestone

First Posted

Study publicly available on registry

September 17, 2020

Completed
3 months until next milestone

Results Posted

Study results publicly available

December 7, 2020

Completed
Last Updated

November 24, 2023

Status Verified

November 1, 2023

Enrollment Period

1.1 years

First QC Date

September 8, 2020

Results QC Date

September 28, 2020

Last Update Submit

November 3, 2023

Conditions

Keywords

Proximal humerus fractureinterferential currentConstant-Murley score

Outcome Measures

Primary Outcomes (1)

  • Constant-Murley Score

    The primary outcome was shoulder global function which was measured by the Constant-Murley score (CMS). The questionnaire assesses four shoulder functions: 1) pain; 2) activities of daily living (sleeping, work, leisure); 3) range of motion; and 4) muscle strength. The total score ranges from 0 to 100, with a higher score indicating better shoulder function.

    1. At the end of the treatment 2. The second evaluation: Six weeks after the first one (6th week post-treatment) 3. The last evaluation: Three months after the second one (18th week post-treatment)

Secondary Outcomes (2)

  • Visual Analogue Scale

    Visual analogue scale was recorded at the end of the treatment, at 6-weeks and 18-weeks post-treatment

  • Disabilities of the Arm, Shoulder and Hand (DASH) Score

    Disabilities of the Arm, Shoulder and Hand (DASH) Score was recorded at the end of the treatment, at 6-weeks and 18-weeks post-treatment

Study Arms (2)

Rehabilitation and interferential current therapy

ACTIVE COMPARATOR

Flipping a coin was used for simple randomization (tails - interferential current). In this arm, interferential current therapy was applied to the patients in addition to the rehabilitation program.

Device: Interferential currentOther: Rehabilitation program

Rehabilitation and sham therapy

SHAM COMPARATOR

Flipping a coin was used for simple randomization (heads - sham). In this arm, sham therapy was applied to the patients in addition to the rehabilitation program.

Device: Interferential currentOther: Rehabilitation program

Interventions

Interferential current or sham were applied to the patients before the each exercise session. Pre-modulated bipolar method with the currier frequency of 4 kHz by a combination therapy unit (Sonopuls 692, Enraf-Nonius) with two electrodes (8×6 cm) was used. One electrode was placed on the lateral part of the deltoid muscle; the other was placed on the trapezium muscle close to the shoulder. Subjects were told that in order to produce an effect, the intensity of the stimulator must be maintained at a "strong but comfortable level" at all times. The sham interferential current therapy consisted of the placement of the same pads for the same time but no electrical stimulation was applied to the probes.

Rehabilitation and interferential current therapyRehabilitation and sham therapy

The orthopedic rehabilitation programme was applied to all patients three times a week for 4 weeks under the guidance of the same physiotherapist. The first phase (0-3 weeks) involved the elbow, wrist, and hand active range of motion (ROM) and pendulum (clockwise and counterclockwise) exercises in the 0-2 weeks of the non-displaced fracture. For displaced fractures, elbow, wrist, and hand active range of motion was started immediately, but pendulum exercises were initiated two weeks later. The patients were instructed to continue exercises 3-5 times per day for 30 minutes. After two weeks, active assistive ROM and isometric exercises were performed supine position. During the second phase (3-6 weeks), active forward elevation in supine was carried out and then progressed to sitting and standing position. At the end of the sixth week, a home exercise program was given by the physiotherapist, including resistance exercises using an elastic band (Thera-Band).

Rehabilitation and interferential current therapyRehabilitation and sham therapy

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may not qualify if:

  • Any surgery history for shoulder pathologies
  • Previous electrotherapy experience before the fracture (to ensure blinding of therapy)
  • Any contraindication such as pacemaker, malignancy, pregnancy, etc. for IFC
  • Rheumatic disease such as rheumatoid arthritis and ankylosing spondylitis
  • Shoulder subluxation; having other fractures in addition to the PHF
  • Known or suspected joint infection or a specific condition such as peripheral or central nervous system lesions
  • Neoplasm; diabetes mellitus or osteonecrosis
  • Any mental disorder that may make it difficult to adapt to exercise

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ege University, School of Medicine, Department of Physical Medicine and Rehabilitation Outpatient Clinic

Izmir, 35040, Turkey (Türkiye)

Location

Related Publications (4)

  • Hodgson SA, Mawson SJ, Stanley D. Rehabilitation after two-part fractures of the neck of the humerus. J Bone Joint Surg Br. 2003 Apr;85(3):419-22. doi: 10.1302/0301-620x.85b3.13458.

  • Hodgson S. Proximal humerus fracture rehabilitation. Clin Orthop Relat Res. 2006 Jan;442:131-8.

  • Cheing GL, So EM, Chao CY. Effectiveness of electroacupuncture and interferential eloctrotherapy in the management of frozen shoulder. J Rehabil Med. 2008 Mar;40(3):166-70. doi: 10.2340/16501977-0142.

  • Handoll HH, Elliott J, Thillemann TM, Aluko P, Brorson S. Interventions for treating proximal humeral fractures in adults. Cochrane Database Syst Rev. 2022 Jun 21;6(6):CD000434. doi: 10.1002/14651858.CD000434.pub5.

MeSH Terms

Interventions

Electric Stimulation TherapyRehabilitation

Intervention Hierarchy (Ancestors)

TherapeuticsPhysical Therapy ModalitiesAftercareContinuity of Patient CarePatient CareHealth ServicesHealth Care Facilities Workforce and Services

Results Point of Contact

Title
Dr. Emine Duran
Organization
Ege University Faculty of Medicine, Physical Medicine and Rehabilitation

Study Officials

  • Emine Duran

    Ege University, School of Medicine, Physical Medicine and Rehabilitation

    PRINCIPAL INVESTIGATOR
  • Berrin Durmaz

    Ege University, School of Medicine, Physical Medicine and Rehabilitation

    STUDY DIRECTOR
  • Funda A Çalış

    Ege University, School of Medicine, Physical Medicine and Rehabilitation

    STUDY CHAIR
  • Mehmet R Kadı

    Ege University, School of Medicine, Physical Medicine and Rehabilitation

    STUDY CHAIR
  • Levent Küçük

    Ege University, School of Medicine, Orthopaedic Surgery

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Patients and the outcome assessor were blind to the treatment groups.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: After the patients were randomized, interferential current was applied for 3 times a week before the each exercise session by another physiotherapist. Pre-modulated bipolar method with the currier frequency of 4 kHz by a combination therapy unit (Sonopuls 692, Enraf-Nonius) with two electrodes (8×6 cm) was used. One electrode was placed on the lateral part of the deltoid muscle; the other was placed on the trapezium muscle close to the shoulder. Subjects were told that in order to produce an effect, the intensity of the stimulator must be maintained at a "strong but comfortable level" at all times. The sham interferential current therapy consisted of the placement of the same pads for the same time but no electrical stimulation was applied to the probes.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Medical doctor

Study Record Dates

First Submitted

September 8, 2020

First Posted

September 17, 2020

Study Start

April 1, 2014

Primary Completion

May 15, 2015

Study Completion

October 15, 2015

Last Updated

November 24, 2023

Results First Posted

December 7, 2020

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations