NCT04831671

Brief Summary

Fractures of the tibia (shin bone) are frequently treated with a metal nail that is passed down the inside of the bone (an intra-medullary nail). This nail is inserted through the top of the tibia at the level of the knee joint. There are two ways for the nail to be inserted - either through an incision below the patella (kneecap) or above the patella. The benefit of the incision above the patella is that it can make it technically easier to insert the nail into the correct position. However, the perceived risk of damage to the knee cartilage has prevented this technique from being widely adopted. The investigators will use MRI scanning to assess the cartilage for damage using both techniques. The results will enable the investigators to determine if the theoretical risk of cartilage damage is found in real-world scenarios and to generate data for further, larger studies.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Apr 2022

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 26, 2021

Completed
10 days until next milestone

First Posted

Study publicly available on registry

April 5, 2021

Completed
12 months until next milestone

Study Start

First participant enrolled

April 1, 2022

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2023

Completed
Last Updated

May 12, 2022

Status Verified

May 1, 2022

Enrollment Period

1.5 years

First QC Date

March 26, 2021

Last Update Submit

May 11, 2022

Conditions

Keywords

MRICartilage DamageSurgical Techniques

Outcome Measures

Primary Outcomes (1)

  • Change in cartilage appearance by MRI Assessment

    Change in cartilage appearance of the ipsilateral knee using MRI scanning

    Pre-intervention, Day 1 post operatively, 6 months

Secondary Outcomes (3)

  • Change in Lysholm Knee Score

    Pre-intervention, 6 weeks, 12 weeks, 6 months

  • Change in Tegner Activity Scale

    Pre-intervention, 6 weeks, 12 weeks, 6 months

  • Change in EQ-5D-5L

    Pre-interventional , 6 weeks, 12 weeks, 6 months

Other Outcomes (5)

  • Bony Union of Fracture

    6 weeks

  • Bony Union of Fracture

    12 weeks

  • Bony Union of Fracture

    6 months

  • +2 more other outcomes

Study Arms (2)

Infra-patella nailing

ACTIVE COMPARATOR

Participants will have their closed tibial shaft fracture treated with an intra-medullary nail inserted through an infra-patella approach.

Other: Surgical Approach - Infra-patella nailing

Supra-patella nailing

EXPERIMENTAL

Participants will have their closed tibial shaft fracture treated with an intra-medullary nail inserted through an supra-patella approach.

Other: Surgical Approach - Supra-patella nailing

Interventions

The intra-medullary nail will be introduced via an infra-patella incision.

Infra-patella nailing

The intra-medullary nail will be introduced via a supra-patella incision.

Supra-patella nailing

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Closed tibial shaft fracture suitable for intramedullary nailing
  • Able to consent
  • Able to undergo MRI scanning
  • Able to attend follow up for 6 months post operatively
  • Suitable for surgery

You may not qualify if:

  • Polytrauma
  • Ipsilateral acute ligamentous knee injury
  • A contra-indication to MRI scanning

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Addenbrooke's Hospital

Cambridge, Cambridgeshire, CB2 0QQ, United Kingdom

Location

MeSH Terms

Conditions

Tibial Fractures

Condition Hierarchy (Ancestors)

Fractures, BoneWounds and InjuriesLeg Injuries

Study Officials

  • Andrew Carrothers, FRCS (Tr & Orth)

    Cambridge University Hospitals NHS Foundation Trust

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
It is not possible to mask participants or investigators as the surgical interventions in each arm will have different scars, making blinding impossible.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Consultant Trauma and Orthopaedic Surgeon

Study Record Dates

First Submitted

March 26, 2021

First Posted

April 5, 2021

Study Start

April 1, 2022

Primary Completion

October 1, 2023

Study Completion

October 1, 2023

Last Updated

May 12, 2022

Record last verified: 2022-05

Data Sharing

IPD Sharing
Will not share

Locations