Intramedullary Nailing vs External Ring Fixation for the Treatment of Tibial Shaft Fractures
IMVEX
Intramedullary Nailing Versus External Ring Fixation for Surgical Treatment of Tibial Shaft Fractures in Adults and Their One Year Outcome on Recovery: Study Protocol for a Pragmatic Randomized Controlled Trial (The IMVEX Trial)
1 other identifier
interventional
67
1 country
3
Brief Summary
This study is a multicenter pragmatic assessor blinded randomized and prospective clinical trial in which standard intramedullary nailing is compared with external ring fixator for patients with tibial shaft fractures.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Nov 2019
Longer than P75 for not_applicable
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 3, 2019
CompletedFirst Posted
Study publicly available on registry
May 10, 2019
CompletedStudy Start
First participant enrolled
November 1, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 24, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
June 24, 2024
CompletedJune 25, 2024
June 1, 2024
4.6 years
May 3, 2019
June 24, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The Knee Injury and Osteoarthritis Outcome Score - sport (KOOS Sport)
KOOS-sport is a standardized and validated patient-reported instrument used in order to assess knee and knee associated problems with regards to activity. The subscale sport is one five subscales: pain, ADL, symptoms, sport and QOL in the KOOS questionnaire . A total score of 100 indicates no symptoms, and 0 indicates major symptoms.
12 month follow up
Secondary Outcomes (13)
Perceived Pain
6 weeks, 3+6+12 months
Patient-reported pain reactions
6 weeks, 3+6+12 months
Pain sensitivity
6 weeks, 3+6+12 months
Muscle strength
6+12 months
Time to bone union
6 weeks, 3+6+12 months
- +8 more secondary outcomes
Other Outcomes (1)
Adverse events
6 weeks, 3+6+12 months
Study Arms (2)
Intramedullary Nail
ACTIVE COMPARATORIntramedullary Nailing: Alignment will be obtained by closed or limited open reduction of the fracture. A standard reamed intramedullary nail is inserted. Access above the patella, through the patella tendon or parapatellar access is used according to surgeon preferences. One or more cortical screws may be used if deemed appropriate due to fracture pattern. Patients are administered preoperative antibiotics (Dicloxacillin) 15 minutes before surgery commences. Postoperative antibiotics is administered by discretion of the surgeon based on individual patient considerations.
External Ring fixator
EXPERIMENTALExternal Ring fixation: Closed or limited open reduction of the fracture is performed. A circular frame is attached on both sides of the fracture. Connection to the bone is obtained by hydroxyapatite coated half pins and/or k-wires with olives as needed according to surgeon preferences. One or more cortical screws may be used if deemed appropriate due to fracture pattern. After applying the ring fixator alignment is assessed radiologically and corrected both peri- and postoperatively. Patients are administered preoperative antibiotics (Dicloxacillin) preoperatively 15 minutes before surgery commences. Following surgery antibiotics are continued until wounds, pin- and wire perforations are dry.
Interventions
fracture fixation of the tibial shaft fracture with an intramedullary nail.
fracture fixation of the tibial shaft fracture with an external ring fixator.
Eligibility Criteria
You may qualify if:
- Fracture of the tibial shaft
- OTA classification Type: 42-A1-A3, -B1-B3 and -C1-C3
- The fracture type is deemed operable by intramedullary nail
You may not qualify if:
- Below 18 years of age
- Open fracture
- History of severe systemic diseases or cancer
- Bilateral tibial shaft fracture
- Multi fracture patients
- Pregnancy
- Patients without gait function prior to fracture
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Aalborg University Hospital, Department of orthopaedic surgery
Aalborg, 9000, Denmark
Aarhus University Hospital
Aarhus, 8000, Denmark
Regional Hospital Viborg
Viborg, 8800, Denmark
Related Publications (1)
Larsen P, Stokholm R, Rolfing JD, Petruskevicius J, Rasmussen MK, Jensen SS, Elsoe R. Intramedullary nailing versus external ring fixation for tibial shaft fractures: an explorative analysis of muscle strength from the IMVEX trial. Arch Orthop Trauma Surg. 2025 Jul 18;145(1):379. doi: 10.1007/s00402-025-05995-6.
PMID: 40679543DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Rasmus Elsøe, PhD
Aalborg University Hospital
- PRINCIPAL INVESTIGATOR
Rasmus Stokholm, MD
Aalborg University Hospital
- PRINCIPAL INVESTIGATOR
Peter Larsen, PhD
Aalborg University Hospital
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Masking Details
- Due to the nature of the study participants, care providers and investigator can not be blinded. The outcome assessor will be blinded with regards to the two treatment groups.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Head of Orthopaedic trauma
Study Record Dates
First Submitted
May 3, 2019
First Posted
May 10, 2019
Study Start
November 1, 2019
Primary Completion
June 24, 2024
Study Completion
June 24, 2024
Last Updated
June 25, 2024
Record last verified: 2024-06
Data Sharing
- IPD Sharing
- Will not share