Is Isokinetic Testing an Indicator of Total Knee Arthroplasty

NCT ID: NCT05668546

Last Updated: 2022-12-30

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

COMPLETED

Clinical Phase

NA

Total Enrollment

29 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-04-01

Study Completion Date

2022-02-01

Brief Summary

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In this study, investigators analyzed whether the isokinetic knee muscle strength of patients undergoing unilateral total knee arthroplasty (TKA) is a predictor for surgery.

Patients and Methods: In total, 29 unilateral TKA candidates (58 knees; mean age = 66.69 ± 7.42 years; mean symptom duration = 10 ± 5.40 years) were enrolled. The knees of patients with bilateral advanced knee osteoarthritis (stage 3 or 4), according to the Kellgren-Lawrence (K-L scale), that were scheduled for unilateral TKA were divided into surgical and non-surgical groups. An isokinetic testing system was used to assess knee flexor and extensor muscle strength (peak torque) at angular velocities of 60°/s and 180°/s (five cycles per velocity). The radiological (X-ray-based K-L scale and magnetic resonance imaging (MRI)-based quadriceps angle) and clinical findings (isokinetic test and visual analog scale pain scores) in both groups were compared. The isokinetic test results correlated with the radiological findings of the surgery group.

Detailed Description

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Conditions

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Knee Osteoarthritis

Keywords

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arthroplasty diagnostic x-ray knee muscle strength dynamometer visual analog scale

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

SCREENING

Blinding Strategy

DOUBLE

Participants Investigators
After the surgical decision was made, the patients were referred to the physiatrist by the orthopedist without informing which knee would be operated on. The physiatrist and the patient did not know which knee would be operated, so the tests were performed blindly.

Study Groups

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surgical knee group

This study analyzed 58 knees of 29 unilateral TKA candidates, divided into the surgical and non-surgical knee groups

Group Type EXPERIMENTAL

isokinetic testing CSMI HUMAC NORM instrument

Intervention Type DEVICE

The strength (PT) of the bilateral knee flexors and extensors were tested with isokinetic test. Tests were performed under the guidance of a rehabilitation medicine specialist, and the system was calibrated prior to their commencement. The patients were seated in upright position and were fixed with pelvic and thigh belts. Concentric extension (PT\_E) and concentric flexion (PT\_F) were measured between the 0° and 90° knee ranges at angular velocities of 60°/s and 180°/s (60 PT\_E, 60 PT\_F, 180 PT\_E, and 180 PT\_F, respectively) The tests were repeated five times at each velocity, and the highest PTs were selected for statistical analysis. The participants performed repeated trials before sets, while a 20-second rest was provided between sets.

non surgical knee group

This study analyzed 58 knees of 29 unilateral TKA candidates, divided into the surgical and non-surgical knee groups

Group Type EXPERIMENTAL

isokinetic testing CSMI HUMAC NORM instrument

Intervention Type DEVICE

The strength (PT) of the bilateral knee flexors and extensors were tested with isokinetic test. Tests were performed under the guidance of a rehabilitation medicine specialist, and the system was calibrated prior to their commencement. The patients were seated in upright position and were fixed with pelvic and thigh belts. Concentric extension (PT\_E) and concentric flexion (PT\_F) were measured between the 0° and 90° knee ranges at angular velocities of 60°/s and 180°/s (60 PT\_E, 60 PT\_F, 180 PT\_E, and 180 PT\_F, respectively) The tests were repeated five times at each velocity, and the highest PTs were selected for statistical analysis. The participants performed repeated trials before sets, while a 20-second rest was provided between sets.

Interventions

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isokinetic testing CSMI HUMAC NORM instrument

The strength (PT) of the bilateral knee flexors and extensors were tested with isokinetic test. Tests were performed under the guidance of a rehabilitation medicine specialist, and the system was calibrated prior to their commencement. The patients were seated in upright position and were fixed with pelvic and thigh belts. Concentric extension (PT\_E) and concentric flexion (PT\_F) were measured between the 0° and 90° knee ranges at angular velocities of 60°/s and 180°/s (60 PT\_E, 60 PT\_F, 180 PT\_E, and 180 PT\_F, respectively) The tests were repeated five times at each velocity, and the highest PTs were selected for statistical analysis. The participants performed repeated trials before sets, while a 20-second rest was provided between sets.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of advanced (Kellgren-Lawrence stage 3 or 4) bilateral knee osteoarthritis (OA).
* Unilateral total knee replacement surgery recommended by orthopedics according to pain status

Exclusion Criteria

* Neurological diseases that could affect knee muscle strength
* Rheumatological diseases
* Diagnosis of osteoarthritis below 3 according to Kellgren-Lawrence classification
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Bahçeşehir University

OTHER

Sponsor Role lead

Responsible Party

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Ilknur Saral

Ass. Prof.

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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ilknur saral, Ass Prof

Role: PRINCIPAL_INVESTIGATOR

Bahcesehir University, Department of Health Sciences

Locations

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Memorial Sisli Hospital

Istanbul, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

Other Identifiers

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395

Identifier Type: -

Identifier Source: org_study_id