Functional Effects of Postoperative Physiotherapy After Cosmetic Femoral Lengthening (LON-PT) (LON-PT)

July 26, 2026 updated by: FATMA ÇAVDARCI

Functional Effects of Postoperative Conventional Physiotherapy Following Cosmetic Femoral Lengthening Using the Lengthening Over Nail (LON) Technique

This study aims to understand how an early postoperative conventional physiotherapy program affects daily movement and physical function in adults who undergo cosmetic femoral lengthening surgery using the Lengthening Over Nail (LON) technique.

Participants aged between 18 and 45 years who have this surgery will take part in a structured physiotherapy program. The study will examine changes in physical function, pain, walking ability, and independence before surgery, during recovery, and after removal of the external fixator.

The results of this study may help improve rehabilitation planning after cosmetic femoral lengthening surgery.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This interventional study will evaluate the effects of an early postoperative conventional physiotherapy program in individuals who undergo cosmetic femoral lengthening surgery using the Lengthening Over Nail (LON) technique.

A total of 54 healthy adults aged between 18 and 45 years will be included. Participants will be assessed at three time points: before surgery, at the eighth postoperative week, and one week after removal of the external fixator.

Following surgery, participants will be monitored in the hospital for one week. After discharge, they will receive a standardized conventional physiotherapy program five days per week for a total of thirteen weeks. The program will include joint mobilization exercises, muscle stretching and strengthening exercises, neuromuscular electrical stimulation, gait training with assistive devices, and functional exercise training.

Outcome measures will include functional capacity, pain intensity, functional mobility, and functional independence. Data will be analyzed using appropriate statistical methods to evaluate changes over time.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: yuksel yurttas, Professor
  • Phone Number: +905326005320

Study Locations

  • Turkey (Türkiye)
    • Kucukcekmece
      • Istanbul, Kucukcekmece, Turkey (Türkiye), 34295
        • Istanbul Aydin University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adults aged between 18 and 45 years.
  • Individuals who have undergone cosmetic femoral lengthening surgery using the Lengthening Over Nail (LON) technique.
  • Participants who are able to attend and comply with the planned postoperative conventional physiotherapy program.
  • Individuals who have provided written informed consent.

Exclusion Criteria:

  • -Presence of neuromuscular diseases (e.g., cerebral palsy, muscular dystrophy).
  • History of lower extremity surgery other than the femoral lengthening procedure.
  • Advanced contractures, deformities, or osteoarthritis of the hip or knee joint.
  • Severe psychiatric disorders or cognitive impairment preventing cooperation with the study procedures.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Conventional Physiotherapy Group
Participants assigned to this arm will receive a structured conventional physiotherapy program following cosmetic femoral lengthening surgery performed using the Lengthening Over Nail (LON) technique. The rehabilitation program will be initiated in the early postoperative period and will include active and passive joint mobilization exercises, quadriceps and hamstring stretching, isometric muscle strengthening, neuromuscular electrical stimulation (NMES), cryotherapy, and functional mobilization with assistive devices. Physiotherapy sessions will be conducted five days per week under the supervision of an experienced physiotherapist.
Behavioral: Conventional Physiotherapy Program
The planned rehabilitation program included active and passive joint mobilization, quadriceps and hamstring stretching, isometric strengthening, NMES, cryotherapy, assistive-device-supported ambulation training, elastic-band resistance exercises, and modified apparatus-based Pilates, supervised by a physiotherapist five days per week for 13 weeks. In actual implementation, structured rehabilitation began on postoperative day 7. Daily cryotherapy during postoperative days 0-6 was routine inpatient care and was not part of the study rehabilitation program. Cryotherapy was applied at every supervised session during rehabilitation weeks 1-4 and thereafter only when edema persisted. Superficial thermotherapy was used as supportive physiotherapy when clinically indicated for muscle tightness or stiffness before stretching or mobilization; it was not provided to every participant or at every session.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Functional Capacity Assessed by the 30-Second Chair Stand Test
Time Frame: Preoperative baseline, postoperative 8th week, and 1 week after removal of the external fixator
The 30-Second Chair Stand Test is used to assess lower extremity functional strength and overall functional capacity. Participants are instructed to stand up and sit down from a standard chair as many times as possible within 30 seconds. A higher number of repetitions indicates better functional capacity.
Preoperative baseline, postoperative 8th week, and 1 week after removal of the external fixator

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Functional Mobility Assessed by the Timed Up and Go Test
Time Frame: Preoperative baseline, postoperative 8th week, and 1 week after removal of the external fixator
The Timed Up and Go Test is used to assess functional mobility and dynamic balance. Participants are instructed to stand up from a chair, walk three meters, turn around, walk back, and sit down. Shorter completion times indicate better functional mobility.
Preoperative baseline, postoperative 8th week, and 1 week after removal of the external fixator

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
FATMA ÇAVDARCI

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 13, 2026

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 18, 2026

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 18, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 4, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 19, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 25, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 28, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 26, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • IAU-LON-FEM-PT-2026-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Individual participant data (IPD) will not be shared. The study is a single-center academic research project, and data sharing was not included in the original study protocol or informed consent documents.

All collected data will be used solely for the purposes of this research and will be reported only in aggregate form.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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