Total Knee ArthroplastyNCT07650175
Balance, Fall Risk, and Gait in Women With Total Knee Arthroplasty
An observational study of Total Knee Arthroplasty and Postmenopausal Women, run by Karabuk University at 1 site in Turkey (Türkiye).
Trial summary
Total knee arthroplasty (TKA) is a commonly performed surgical procedure aimed at reducing pain, restoring joint function, and improving quality of life, particularly among older women. Read more about this study
- Who is it for?
- Ages 60 to 85 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Total Knee Arthroplasty, Postmenopausal Women, Quality of Life (QOL)
- What is being tested?
- TKA group
- How many people
- 38 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 20 Jun 2026to 1 Oct 2026
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 60 to 85 years
- Women only
- Healthy volunteers accepted
- Adult, Older adult
Study population: Postmenopausal women who have and have not undergone total knee arthroplasty.
Who may be able to join
- Volunteering to participate in the study.
- Being 60 years of age or older.
- Having a Mini Mental Test score of 24 or higher.
- Not having undergone previous arthroplasty surgery on the knee where surgery is planned.
- Having experienced unilateral TDA.
- Being a postmenopausal woman
Who cannot join
- Individuals whose vital signs are unstable after surgery, or who develop any major complications such as deep vein thrombosis, pulmonary embolism, wound infection, or prolonged anesthesia side effects.
- Presence of any neurological, vestibular, visual, cardiopulmonary, auditory, or cognitive deficits that may affect measurements.
- Individuals diagnosed with diabetes.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Investigation of Balance, Fall Risk, Gait Performance, and Quality of Life in Postmenopausal Women Undergoing Total Knee Arthroplasty
Total knee arthroplasty (TKA) is a commonly performed surgical procedure aimed at reducing pain, restoring joint function, and improving quality of life, particularly among older women. Despite improvements in pain and functional outcomes following TKA, findings regarding balance, fall risk, and gait performance remain inconsistent. Impairments in these parameters may adversely affect daily activities, independence, and overall quality of life.
Unlike previous studies that have primarily focused on one or two outcomes, this study will comprehensively evaluate balance, fall risk, gait performance, and quality of life in postmenopausal women who have undergone TKA. The findings are expected to provide a more holistic understanding of long-term functional outcomes following TKA and contribute to the planning of rehabilitation programs. Therefore, the aim of this study is to compare balance, fall risk, gait performance, and quality of life between postmenopausal women who have undergone TKA and healthy postmenopausal women.
Read the detailed description
Total knee arthroplasty (TKA) is one of the most frequently performed surgeries aimed at reducing pain, restoring limb function and alignment, enabling normal joint movement, and increasing the level of independence in daily living activities. TKA is frequently performed in women aged 65-84 years.
In recent years, advancements in surgical techniques and prosthetic technology, along with increased surgeon experience, have broadened the range of indications for this surgery. Following TKA, balance, fall risk, and walking performance in patients can negatively impact their daily living activities and quality of life, preventing the achievement of expected rehabilitation results. While reports indicate a reduction in complaints and an increase in functional level and quality of life after TKA surgery, clear conclusions regarding patients' balance, fall risk, and walking performance have not been reached. This study differs from other studies in the literature by comprehensively evaluating the effects of TKA on critical functional parameters such as balance, fall risk, walking performance, and quality of life in postmenopausal women. While most research focuses on the effect of TDA on only one or two parameters, this study will examine four key components together, providing a more holistic assessment. Evaluating these parameters, which significantly affect the success of TDA surgery, will determine the rehabilitation process and program. Furthermore, the fact that participants scored 24 points or higher on the Mini-Mental Test will increase the reliability of the results by providing a sample capable of cognitive assessment. The aim of this study is to compare the effects of TDA surgery on balance skills, gait performance, fall risk, and quality of life in postmenopausal women who have and have not undergone the procedure.
- Conditions
- Total Knee Arthroplasty, Postmenopausal Women, Quality of Life (QOL), Balance, Risk of Falling, Walking
- Being tested
- TKA group
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TKA groupOther
having undergone TKA
| Study group | Role | What they receive |
|---|---|---|
| control group | not having undergone TKA Receives: Other: TKA group |
What is being measured
The primary outcome is the main question the study is designed to answer.
Single Leg Standing Test
Single Leg Standing (SLJ) Test: Balance assessment will be performed using the single leg standing (SLJ) test. In the SLJ test, participants will be asked to stand with their extremities on the side that has not undergone surgery raised. The duration of the test in this position will be recorded. If the participant completes this position for 30 seconds, the test will be recorded as successful. Sarac et al. determined the validity and reliability of the SLJ test in TDA patients as an intraclass correlation coefficient [ICC]=0.74 (0.48-0.87).
Measured: 1 day
30-Second Sit-to-Stand Test
For the test, the individual sits in the middle of a chair without armrests, with a seat height of 43.18 cm, with their back straight, arms crossed over their chest, and feet flat on the floor. Upon the "Start" command, they rise from the chair without pushing off with their arms, stand upright, and then sit down again. Prior to the evaluation, the individual is assessed for two sit-to-stand repetitions to ensure they have learned the procedure. The number of correct standing repetitions within 30 seconds is recorded as the test value.
Measured: 1 day
Timed Up and Walk Test
The individual is asked to stand up from a chair, walk 3 meters at a safe and normal pace, turn around, walk back, and sit back down in the chair. The time is recorded in seconds. The test will be initiated with the patient's feet flat on the floor and their arms resting on the armrests of the chair. Three repetitions will be performed, and the best result will be recorded.
Measured: 1 day
10-Meter Walking Test
The 10-meter walking test will be used to assess walking ability. In this test, the individual will be asked to walk at their normal pace in a pre-measured 10-meter area (with or without walking aids). The timer will start when the individual's foot is on the starting line and end when they cross the finish line. Two measurements will be taken, and the best value will be recorded in meters per second (m/s).
Measured: 1 day
Oxford Knee Score
It is a scale developed in 1998 to investigate pain and functional status in individuals with knee replacement, and its validity and reliability have been proven (47). The validity and reliability of the score in Turkish was proven by the research conducted by Tugay et al. in 2016 (48). The Oxford knee score is a score consisting of 12 questions that include the problems the individual has experienced in their knee in the last 4 weeks. The questions will be answered by individuals choosing the most appropriate situation for themselves from 5 answers related to each question. The answers given will be scored from 0-4 and the results will be totaled. The raw score is a value between 0-48.
Measured: 1 day
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Jun 2026
- Study start20 Jun 2026
- Primary completion20 Jul 2026
- Study completion1 Oct 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Total Knee ArthroplastyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 38 participants (actual)
Sponsor and investigators
- Lead sponsor
- Karabuk University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Nurcan Contarli, Karabuk University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07650175
- Sponsor's protocol ID
- KBU-FTR-NC-11
- Status last verified
- Oct 2026
- First submitted
- 10 Jun 2026
- Last updated
- 7 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Data are available from the corresponding author on reasonable request.
Study at a glance
From the registry record, last updated by the sponsor on 7 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Investigation of Balance, Fall Risk, Gait Performance, and Quality of Life in Postmenopausal Women Undergoing Total Knee Arthroplasty
- ClinicalTrials.gov ID
- NCT07650175
- Acronym / sponsor ID
- KBU-FTR-NC-11
- Conditions
- Total Knee Arthroplasty, Postmenopausal Women, Quality of Life (QOL), Balance, Risk of Falling, Walking
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 38 participants (actual)
- Lead sponsor
- Karabuk UniversityUniversity, hospital or other
- Study start
- 20 Jun 2026 (actual)
- Primary completion
- 20 Jul 2026 (actual)
- Study completion
- 1 Oct 2026 (actual)
- First posted
- 16 Jun 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Total knee arthroplasty (TKA) is a commonly performed surgical procedure aimed at reducing pain, restoring joint function, and improving quality of life, particularly among older women. Despite improvements in pain and functional outcomes following TKA, findings regarding balance, fall risk, and gait performance remain inconsistent. Impairments in these parameters may adversely affect daily activities, independence, and overall quality of life.
Unlike previous studies that have primarily focused on one or two outcomes, this study will comprehensively evaluate balance, fall risk, gait performance, and quality of life in postmenopausal women who have undergone TKA. The findings are expected to provide a more holistic understanding of long-term functional outcomes following TKA and contribute to the planning of rehabilitation programs. Therefore, the aim of this study is to compare balance, fall risk, gait performance, and quality of life between postmenopausal women who have undergone TKA and healthy postmenopausal women.
Detailed description
Total knee arthroplasty (TKA) is one of the most frequently performed surgeries aimed at reducing pain, restoring limb function and alignment, enabling normal joint movement, and increasing the level of independence in daily living activities. TKA is frequently performed in women aged 65-84 years.
In recent years, advancements in surgical techniques and prosthetic technology, along with increased surgeon experience, have broadened the range of indications for this surgery. Following TKA, balance, fall risk, and walking performance in patients can negatively impact their daily living activities and quality of life, preventing the achievement of expected rehabilitation results. While reports indicate a reduction in complaints and an increase in functional level and quality of life after TKA surgery, clear conclusions regarding patients' balance, fall risk, and walking performance have not been reached. This study differs from other studies in the literature by comprehensively evaluating the effects of TKA on critical functional parameters such as balance, fall risk, walking performance, and quality of life in postmenopausal women. While most research focuses on the effect of TDA on only one or two parameters, this study will examine four key components together, providing a more holistic assessment. Evaluating these parameters, which significantly affect the success of TDA surgery, will determine the rehabilitation process and program. Furthermore, the fact that participants scored 24 points or higher on the Mini-Mental Test will increase the reliability of the results by providing a sample capable of cognitive assessment. The aim of this study is to compare the effects of TDA surgery on balance skills, gait performance, fall risk, and quality of life in postmenopausal women who have and have not undergone the procedure.
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| control group | – | Other: TKA groupnot having undergone TKA |
Who may qualify
- Ages
- 60 to 85 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Postmenopausal women who have and have not undergone total knee arthroplasty.
Key inclusion criteria (6 listed)
- Volunteering to participate in the study.
- Being 60 years of age or older.
- Having a Mini Mental Test score of 24 or higher.
- Not having undergone previous arthroplasty surgery on the knee where surgery is planned.
- Having experienced unilateral TDA.
Key exclusion criteria (3 listed)
- Individuals whose vital signs are unstable after surgery, or who develop any major complications such as deep vein thrombosis, pulmonary embolism, wound infection, or prolonged anesthesia side effects.
- Presence of any neurological, vestibular, visual, cardiopulmonary, auditory, or cognitive deficits that may affect measurements.
- Individuals diagnosed with diabetes.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| TKA grouphaving undergone TKA | Other | control group |
Primary outcome
Single Leg Standing Test
Time frame: 1 day
Single Leg Standing (SLJ) Test: Balance assessment will be performed using the single leg standing (SLJ) test. In the SLJ test, participants will be asked to stand with their extremities on the side that has not undergone surgery raised. The duration of the test in this position will be recorded. If the participant completes this position for 30 seconds, the test will be recorded as successful. Sarac et al. determined the validity and reliability of the SLJ test in TDA patients as an intraclass correlation coefficient [ICC]=0.74 (0.48-0.87).
30-Second Sit-to-Stand Test
Time frame: 1 day
For the test, the individual sits in the middle of a chair without armrests, with a seat height of 43.18 cm, with their back straight, arms crossed over their chest, and feet flat on the floor. Upon the "Start" command, they rise from the chair without pushing off with their arms, stand upright, and then sit down again. Prior to the evaluation, the individual is assessed for two sit-to-stand repetitions to ensure they have learned the procedure. The number of correct standing repetitions within 30 seconds is recorded as the test value.
Timed Up and Walk Test
Time frame: 1 day
The individual is asked to stand up from a chair, walk 3 meters at a safe and normal pace, turn around, walk back, and sit back down in the chair. The time is recorded in seconds. The test will be initiated with the patient's feet flat on the floor and their arms resting on the armrests of the chair. Three repetitions will be performed, and the best result will be recorded.
10-Meter Walking Test
Time frame: 1 day
The 10-meter walking test will be used to assess walking ability. In this test, the individual will be asked to walk at their normal pace in a pre-measured 10-meter area (with or without walking aids). The timer will start when the individual's foot is on the starting line and end when they cross the finish line. Two measurements will be taken, and the best value will be recorded in meters per second (m/s).
Oxford Knee Score
Time frame: 1 day
It is a scale developed in 1998 to investigate pain and functional status in individuals with knee replacement, and its validity and reliability have been proven (47). The validity and reliability of the score in Turkish was proven by the research conducted by Tugay et al. in 2016 (48). The Oxford knee score is a score consisting of 12 questions that include the problems the individual has experienced in their knee in the last 4 weeks. The questions will be answered by individuals choosing the most appropriate situation for themselves from 5 answers related to each question. The answers given will be scored from 0-4 and the results will be totaled. The raw score is a value between 0-48.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Oct 2026.
- Individual participant dataSharing planned: No. Data are available from the corresponding author on reasonable request.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Total Knee Arthroplasty and Postmenopausal Women, run by Karabuk University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 7 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Single Leg Standing Test (time frame: 1 day). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Oct 2026; AzTrials last refreshed its copy on 7 Nov 2026.