The Effect of Cassava Waxes Hot Bath on Pain, Pressure Pain Threshold and Hand Function Among Patients With Trigger Finger

NCT ID: NCT07128043

Last Updated: 2025-08-17

Basic Information

• Recruitment Status: ENROLLING_BY_INVITATION
• Clinical Phase: NA
• Total Enrollment: 40 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-09-01
• Study Completion Date: 2025-10-30

Brief Summary

Objective: This study aimed to evaluate the efficacy of cassava wax hand immersion combined with ultrasound therapy on pain severity, pain threshold, finger locking frequency, and hand functional ability in patients with trigger finger. We assessed immediate, short-term, and long-term treatment outcomes.

Methods: This was a randomized controlled trial. Thirty-eight eligible volunteers were randomly assigned to two groups. The experimental group received ultrasound therapy combined with cassava wax hand immersion, while the control group received ultrasound therapy alone. Treatments were administered three times per week for four weeks.

Conditions

Patients With Trigger Finger

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

ultrasound therapy combined with cassava wax hot immersion

ultrasound therapy combined with cassava wax hot immersion group and ultrasound therapy only

Group Type: EXPERIMENTAL

ultrasound therapy and cassava wax hot immersion

Intervention Type: DEVICE

participants sat in a comfortable position with their hand placed on a pillow or cushion. Ultrasound gel was applied to the base of the painful finger, and ultrasound therapy was performed for 5 minutes at a frequency of 3 MHz and an intensity of 0.5-1 W/cm. Afterward, the hand was cleaned and immersed in cassava wax heated to 125°F (51.7°C). The affected hand was dipped into the wax for 3 seconds, then removed. This process was repeated for 10 cycles. The hand was then wrapped in a plastic bag and a towel for 15 minutes before the wax was removed and peeled off.

ultrasound therapy

ultrasound therapy

Group Type: SHAM_COMPARATOR

ultrasound therapy

Intervention Type: DEVICE

1\. ultrasound therapy Ultrasound gel was applied to the base of the painful finger, and ultrasound therapy was performed for 5 minutes at a frequency of 3 MHz and an intensity of 0.5-1 W/cm.

Interventions

ultrasound therapy and cassava wax hot immersion

participants sat in a comfortable position with their hand placed on a pillow or cushion. Ultrasound gel was applied to the base of the painful finger, and ultrasound therapy was performed for 5 minutes at a frequency of 3 MHz and an intensity of 0.5-1 W/cm. Afterward, the hand was cleaned and immersed in cassava wax heated to 125°F (51.7°C). The affected hand was dipped into the wax for 3 seconds, then removed. This process was repeated for 10 cycles. The hand was then wrapped in a plastic bag and a towel for 15 minutes before the wax was removed and peeled off.

Intervention Type: DEVICE

ultrasound therapy

1\. ultrasound therapy Ultrasound gel was applied to the base of the painful finger, and ultrasound therapy was performed for 5 minutes at a frequency of 3 MHz and an intensity of 0.5-1 W/cm.

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Having a diagnosis of trigger finger by a physician or a specialized physical therapist
• Present with all of the following symptoms: pain at the base of the affected finger, triggering (catching/locking) as a primary symptom (though pain often increased with it), and a palpable or audible triggering sensation during finger flexion and extension.
• Able to understand and follow the research procedures.

Exclusion Criteria

• Having a history of neurological conditions, such as stroke or diseases causing sensory impairment in the upper limbs.
• Having arthritis or infection in the upper limbs
• Having Rheumatoid Arthritis.
• Having a skin condition in the wrist or hand area, upper limb fractures within the last 6 months, or those affecting movement.
• Having musculoskeletal deformities of the upper limbs that impact movement.
• Having an inflammation (e.g., pain, swelling, redness, warmth) in the wrist and fingers
• Having a history of upper limb surgery, an allergy to cassava starch/flour.

• Minimum Eligible Age: 40 Years
• Maximum Eligible Age: 70 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

University of Phayao

OTHER

Sponsor Role: lead

Responsible Party

Chonticha Kaewjoho

Department of Physical Therapy, School of Allied Health Sciences

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Narongsak Khamnon

Chiang Rai, Tha Sut, Thailand

Countries

Thailand

Other Identifiers

NarongsakMFU2568

Identifier Type: -

Identifier Source: org_study_id