Which head element is more effective for hip fracture implants to prevent implant-related failures? A helical blade or a lag screw

ISRCTN ISRCTN45341843
DOI https://doi.org/10.1186/ISRCTN45341843
Submission date
13/12/2022
Registration date
24/12/2022
Last edited
04/07/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Injury, Occupational Diseases, Poisoning
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims
Early fixation and rehabilitation is the gold standard treatment for intertrochanteric femur fractures. Cement augmentation through perforated head elements has been developed to avoid postoperative complications such as cut-outs or cut-through. The purpose of this study was to compare two head elements in terms of cement distribution using computed tomography (CT) and to examine their initial fixation and clinical outcomes.

Who can participate?
Adult patients with proximal femur fractures

What does the study involve?
Internal fixation with a trochanteric fixation nail advanced (TFNA) helical blade cement augmentation is compared with a TFNA lag screw.

What are the possible benefits and risks of participating?
Possible benefits of participation are frequent clinical evaluation and accurate radiographic investigation of the patient's fractures. Almost no risks are anticipated.

Where is the study run from?
Shin Kyoto Minami Hospital (Japan)

When is the study starting and how long is it expected to run for?
September 2020 to August 2022

Who is funding the study?
Shin Kyoto Minami Hospital (Japan)

Who is the main contact?
Sadaki Mitsuzawa, sadaki_mitsuzawa@kcho.jp (Japan)

Contact information

Dr Sadaki Mitsuzawa
Scientific

Minatojimaminamimachi 2-1-1
Kobe
6500047
Japan

ORCiD logoORCID ID 0000-0002-6766-5512
Phone +78-302-4321
Email sadaki_mitsuzawa@kcho.jp

Study information

Study designRandomized parallel-assignment study
Primary study designInterventional
Secondary study designRandomised parallel trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet No participant information sheet available
Scientific titleWhich head element is more effective for cement augmentation of trochanteric fixation nail advanced implants? Helical blade versus lag screw
Study hypothesisThe cement position and volume might differ, but the stability and clinical results will be similar between the two groups of elderly patients who had intertrochanteric fractures treated with either a trochanteric fixation nail advanced (TFNA) helical blade or a TFNA lag screw
Ethics approval(s)1. Approved 09/02/2021, Ethics Committee of Shin Kyoto Minami Hospital (94 Shichijo Goshonouchi Kitamachi, Shimogyo Ward, Kyoto, 600-8861, Japan; +78 322 3344; minami-ikyoku@hello.odn.ne.jp), ref: SHIN20-019
2. Approved 17/03/2021, Ethics Committee of Rakuwakai Otowa Hospital (2 Otowa Chinjicho, Yamashina-ku, Kyoto, 607-8062, Japan; +75 593 4111; sandu-ionut@rakuwa.or.jp), ref: RAKUOTO-RIN21-016
ConditionProximal femur fractures
InterventionElderly patients who had intertrochanteric fractures were treated with a trochanteric fixation nail advanced (TFNA) helical blade (Blade group) or a TFNA lag screw (Screw group). In both groups, 4.2 ml of cement was injected under an image intensifier. In both groups, maximum penetration depth was measured. Changes in radiographic parameters and clinical outcomes such as the Parker score and visual analog scale (VAS) were also recorded. Other tests included mechanical stability after surgery, postoperative pain and the early phase of rehabilitation.
Intervention typeProcedure/Surgery
Primary outcome measureAmount of cement distribution measured using CT scan on the day after the surgery
Secondary outcome measuresClinical outcome measured using a visual analog scale (VAS) scoring and Parker score on postoperative day 14
Overall study start date01/09/2020
Overall study end date30/08/2022

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants30
Total final enrolment29
Participant inclusion criteriaProximal femur fractures
Participant exclusion criteria1. Occult fracture detected by magnetic resonance imaging only
2. Pathological fracture
3. Presence of pre-existing implants
4. Multiple trauma or additional fracture that would affect the patient’s postoperative rehabilitation
Recruitment start date01/11/2020
Recruitment end date30/04/2021

Locations

Countries of recruitment

  • Japan

Study participating centres

Shin Kyoto Minami Hospital
Minami Nakanocho 8
Kyoto
600-8876
Japan
Rakuwakai Otowa Hospital
Otowachinjicho 2
Kyoto
607-8062
Japan

Sponsor information

Shin Kyoto Minami Hospital
Hospital/treatment centre

94 Shichijo Goshonouchi Kitamachi
Shimogyo-Ku
Kyoto City
600-8861
Japan

Phone +78-322-3344
Email minami-ikyoku@hello.odn.ne.jp

Funders

Funder type

Hospital/treatment centre

Shin Kyoto Minami Hospital

No information available

Results and Publications

Intention to publish date31/08/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Sadaki Mitsuzawa, sadakimitsuzawa@gmail.com

The type of data that will be shared: Excel file
Consent from participants is required

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 03/07/2023 04/07/2023 Yes No

Editorial Notes

04/07/2023: Publication reference and total final enrolment added.
23/12/2022: Trial's existence confirmed by the Ethics Committee of the Medical Corporation Kenkokai Shin-Kyoto Minami Hospital.