PNF Stretching for TKA on ROM

NCT ID: NCT00797875

Last Updated: 2008-11-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-12-31

Study Completion Date

2008-12-31

Brief Summary

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To investigate immediate and short term effects on angle of knee flexion, intensity of pain, strength of the knee extensor, and function of the lower extremity by using PNF stretching technique in patients with total knee arthroplasty.

hypothesis:TKA patients may increase ROM after PNF stretching

Detailed Description

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Proprioceptive neuromuscular facilitation(PNF) is defined as a treatment method that promotes or hastens the response of the neuromuscular mechanism through stimulation of proprioceptors within the related muscles or joints. PNF stretching technique is a therapeutic technique using the PNF concept to the related muslces either to increase neuro-inhibition mechanism for releasing muscle spasm and elongating muscle length, or to increase neuro-excitation mechanism for enhancing muscle strength. Improvement in range of motion using PNF stretching technique has been reported superior to other techniques in previous literature, but those studies have only been done in healthy adults. Less is known in the effect of PNF stretching on improvement in joint restriction. Range of motion limitation usually disturbed the patients with total knee arthroplasty. PNF stretching techniques has been used frequently for patients with total knee arthroplasty in clinical practice to increase range of motion effectively and reduced knee pain during exercise. However there is no evidence-based research in such a technique for patients with total knee arthroplasty. This research project, therefore, will explore application of PNF stretch in changes of knee flexion, pain, muscle strength, and function of the lower extremity following total knee arthroplasty.

Purposes: To investigate immediate and short term effects on angle of knee flexion, intensity of pain, strength of the knee extensor, and function of the lower extremity by using PNF stretching technique in patients with total knee arthroplasty.

Method: Sixty patients who received total knee arthroplasty in National Taiwan University Hospital will be recruited in this study. They will be allocated randomly into either experimental or control groups. Conventional physical therapy will be given to all participants. Besides, the experimental group will assume PNF stretching technique from the third post-operative day to the day of discharge. This technique will be executed by the same physical therapist, including 5 trials of isometric knee extension for 6 s, followed by active knee flexion to the maximum range immediately, and holding for 10s. The rest interval will be 10 s. For the control group, passive stretch technique with the same treatment time will be given, instead. All participants will be asked to do home exercises after discharged from the hospital. The outcome measures will be given before and after the first session treatment on the same day, on the day of discharge, and one month after the operation. The variables measured will be (1) knee flexion angle measured with a universal goniometer, (2) maximum voluntary isometric strength of the knee extensor measured with a hand-held dynamometer, (3) pain score using pain visual analog scale, (4) function performance of the lower extremity measured with timed up and go test, (5) Knee Injury and Osteoarthritis Outcome Score (KOOS) to record 5 dimensions including the symptoms, stiffness, pain, difficulties in knee functions and/or daily activities, limitations in sports or recreational participation, and quality of life.

Conditions

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Total Knee Arthroplasty

Keywords

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proprioceptive neuromuscular facilitation stretching technique, total knee arthroplasty, range of motion

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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1

PNF stretching x 5 repetitions for 3 days

Group Type EXPERIMENTAL

PNF stretching

Intervention Type PROCEDURE

PNF stretching x 5 repetitions and continue 3 days

2

passive stretching

Group Type ACTIVE_COMPARATOR

passive stretching

Intervention Type PROCEDURE

passive stretching x 5 repetitions continue 3 days

Interventions

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PNF stretching

PNF stretching x 5 repetitions and continue 3 days

Intervention Type PROCEDURE

passive stretching

passive stretching x 5 repetitions continue 3 days

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* OA knee
* primary unilateral TKA

Exclusion Criteria

* knee flexion\>110 or thigh girth \> 55 cm
* poor cognition
* CNS or PNS neuromuscular disease
* received operation in recent 3 months
* joint infection and loosening
* revision total knee arthroplasty
* complication during follow up
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Taiwan University Hospital

OTHER

Sponsor Role lead

Responsible Party

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National Taiwan University Hospital

Principal Investigators

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Huei-Ming Chai, PHD

Role: PRINCIPAL_INVESTIGATOR

Nation Taiwan University Hospital

Locations

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National Taiwan University Hospital

Taipei, , Taiwan

Site Status

Countries

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Taiwan

Central Contacts

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Shiun-Jeng Lin

Role: CONTACT

Phone: 0939803219

Email: [email protected]

Facility Contacts

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Huei-Ming Chai, PHD

Role: primary

Other Identifiers

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200803064R

Identifier Type: -

Identifier Source: org_study_id