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

February 19, 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

Not yet recruiting

Conditions

Intervention / Treatment

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

Interventional

Enrollment (Estimated)

54

Phase

  • 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 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

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
Intervention / Treatment
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
Conventional physiotherapy will be administered following cosmetic femoral lengthening surgery performed using the Lengthening Over Nail (LON) technique. The rehabilitation program will begin in the early postoperative period and will be conducted five days per week for a total duration of thirteen weeks. The intervention will include active and passive joint mobilization exercises, quadriceps and hamstring stretching exercises, isometric muscle strengthening, neuromuscular electrical stimulation (NMES), cryotherapy, functional ambulation training with assistive devices such as walkers or crutches, elastic band resistance exercises, and modified apparatus-based Pilates exercises. All sessions will be supervised by an experienced physiotherapist.

What is the study measuring?

Primary Outcome Measures

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

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

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 (Estimated)

February 1, 2026

Primary Completion (Estimated)

April 1, 2026

Study Completion (Estimated)

May 1, 2026

Study Registration Dates

First Submitted

February 4, 2026

First Submitted That Met QC Criteria

February 19, 2026

First Posted (Actual)

February 25, 2026

Study Record Updates

Last Update Posted (Actual)

February 25, 2026

Last Update Submitted That Met QC Criteria

February 19, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID 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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