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Pelvic FractureNCT07624942

Robot Assisted Treatment Versus Conventional Surgery for Tile B and C Pelvic Fractures

A study testing Robot Assisted Minimally Invasive Fixation in people with Pelvic Fracture, run by Junbo Liang.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

This prospective randomized controlled trial aims to compare the efficacy and safety of robot assisted treatment versus conventional surgery in patients with Tile B and C pelvic fractures. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Pelvic Fracture
What is being tested?
Robot Assisted Minimally Invasive Fixation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
88 participants
Where
No sites listed yet
Study dates
1 Jun 2026to 30 Dec 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥ 18 years
  • Diagnosis of Tile B or Tile C pelvic fracture
  • Injury duration less than 3 weeks
  • Ability to provide written informed consent

Who cannot join

  • Severe open injury or skin infection at the surgical site
  • Hemodynamic instability preventing anesthesia or surgery
  • Severe psychiatric disorders or dementia
  • Severe obesity affecting imaging quality
  • Severe systemic diseases preventing surgery
  • Pathological fracture
  • Current chemotherapy, radiotherapy, systemic corticosteroid therapy, or growth factor therapy

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Junbo Liang, Dr. contact

0576-85190463

liangjb@enzemed.com

About this study

Official title: Comparing the Efficacy and Safety of Robot Assisted Treatment Versus Conventional Surgery in Patients With Tile B and C Pelvic Fractures

This prospective randomized controlled trial aims to compare the efficacy and safety of robot assisted treatment versus conventional surgery in patients with Tile B and C pelvic fractures. Eligible patients will be stratified according to Tile fracture classification and randomly assigned in a 1:1 ratio to receive either robot assisted minimally invasive fixation or conventional surgical treatment. Primary and secondary outcomes include pain relief, early mobilization, functional recovery, imaging outcomes, perioperative complications, venous thromboembolism events, laboratory parameters, opioid consumption, and healthcare resource utilization. The study aims to provide evidence for optimizing surgical treatment strategies for unstable pelvic fractures.

Read the detailed description

This study is a prospective, single center, stratified randomized controlled trial designed to compare the efficacy and safety of robot assisted treatment versus conventional surgery in patients with Tile B and C pelvic fractures.

A total of 88 patients will be enrolled and randomly assigned in a 1:1 ratio to either the robot assisted treatment group or the conventional surgery group. Randomization will be stratified according to Tile fracture classification (Tile B or Tile C) using a computer generated randomization sequence.

Eligible participants include adult patients diagnosed with Tile B or Tile C pelvic fractures within 3 weeks after injury. The primary objective is to compare perioperative outcomes, pain control, early mobilization, functional recovery, imaging outcomes, complications, opioid consumption, and healthcare resource utilization between treatment strategies.

Patients in the robot assisted treatment group will undergo robot assisted minimally invasive fixation using robotic navigation assisted percutaneous screw placement. Patients in the conventional surgery group will undergo standard open surgical fixation according to fracture characteristics and surgeon judgment.

Outcome measures include pain scores, Majeed pelvic function score, EQ 5D, SMFA, imaging evaluation of fracture healing, laboratory parameters, venous thromboembolism events, opioid consumption, perioperative indicators, complications, and healthcare costs. Follow up assessments will be performed at postoperative day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year.

The results of this study may provide evidence regarding the optimal surgical treatment strategy for Tile B and C pelvic fractures.

Conditions
Pelvic Fracture
Being tested
Robot Assisted Minimally Invasive Fixation
Keywords
Pelvic Fracture, Robot Assisted Surgery
Medical subject headings
Hip Fractures

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Robot Assisted Minimally Invasive FixationProcedure or surgery

    Robot assisted minimally invasive fixation is performed using robotic navigation assisted percutaneous screw placement for stabilization of unstable pelvic fractures.

Study groups in NCT07624942
Study groupRoleWhat they receive
Robot Assisted Treatment GroupExperimentalParticipants undergo robot assisted minimally invasive fixation using robotic navigation assisted percutaneous screw placement for Tile B and C pelvic fractures.
Receives: Procedure: Robot Assisted Minimally Invasive Fixation
Conventional Surgery GroupActive comparatorParticipants undergo conventional open surgical fixation for Tile B and C pelvic fractures.
Receives: Procedure: Robot Assisted Minimally Invasive Fixation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Visual Analog Scale (VAS) for Pain

    Visual Analog Scale (VAS) for pain. Scores range from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate worse pain severity.

    Measured: At 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 12 hours, day 1, day 2, day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment

  2. Majeed Pelvic Function Score

    The Majeed Pelvic Function Score is used to evaluate functional recovery after pelvic fracture treatment. Scores range from 0 to 100, with higher scores indicating better functional outcomes and quality of life.

    Measured: At day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment

Secondary outcomes (11)
  1. EuroQol 5-Dimension 3-Level Questionnaire

    Health related quality of life assessed using the EuroQol 5-Dimension 3-Level Questionnaire (EQ-5D-3L). The EQ-5D index score ranges from values below 0 (health states considered worse than death) to 1.0 (full health). Higher scores indicate better health related quality of life.

    Measured: At day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment

  2. Short Musculoskeletal Function Assessment (SMFA)

    Musculoskeletal function assessed using the 46-item Short Musculoskeletal Function Assessment (SMFA). Raw questionnaire scores are transformed to a standardized score ranging from 0 to 100. Higher scores indicate worse musculoskeletal function and greater disability.

    Measured: At day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment

  3. Imaging Outcomes and Fracture Healing

    Assessment of fracture healing, secondary displacement, bone mineral density changes, and muscle mass changes using pelvic CT and imaging examinations.

    Measured: At day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment

  4. Complication

    Measured: From treatment initiation to 1 year follow up

  5. Opioid Consumption

    Assessment of cumulative opioid consumption during hospitalization

    Measured: Postoperative Days 0-3

  6. Serum C-Reactive Protein Level

    Measured: Preoperative, Day 1, Day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment.

  7. D-Dimer Level

    Measured: Preoperative, Day 1, Day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment.

  8. Hemoglobin Level

    Measured: Preoperative, Day 1, Day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment.

  9. Operative Time

    Duration of surgery measured in minutes.

    Measured: Perioperative

  10. Intraoperative Blood Loss

    Estimated intraoperative blood loss measured in milliliters.

    Measured: Perioperative

  11. Length of Surgical Incision

    Length of skin incision measured in centimeters.

    Measured: Perioperative

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Jun 2026
  2. Study start1 Jun 2026 (estimated)
  3. Primary completion1 Jun 2027 (estimated)
  4. Study completion30 Dec 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
88 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07624942
Sponsor's protocol ID
K20260304
Status last verified
May 2026
First submitted
24 May 2026
Last updated
3 Jun 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Lu Z, Xiuxiu H, Xing B. Retrospective analysis of the use of orthopedic reduction robots in treating low-energy osteoporotic unstable pelvic fractures in the elderly. J Orthop Surg Res. 2025 Sep 26;20(1):844. doi: 10.1186/s13018-025-06258-1.

    PubMed 41013720
  • Zwingmann J, Konrad G, Kotter E, Sudkamp NP, Oberst M. Computer-navigated iliosacral screw insertion reduces malposition rate and radiation exposure. Clin Orthop Relat Res. 2009 Jul;467(7):1833-8. doi: 10.1007/s11999-008-0632-6. Epub 2008 Nov 26.

    PubMed 19034594
  • Hoffmann MF, Yilmaz E, Norvel DC, Schildhauer TA. Navigated iliac screw placement may reduce radiation and OR time in lumbopelvic fixation of unstable complex sacral fractures. Eur J Orthop Surg Traumatol. 2021 Oct;31(7):1427-1433. doi: 10.1007/s00590-021-02892-7. Epub 2021 Feb 16.

    PubMed 33590317
  • Gericke L, Fritz A, Osterhoff G, Josten C, Pieroh P, Hoch A. Percutaneous operative treatment of fragility fractures of the pelvis may not increase the general rate of complications compared to non-operative treatment. Eur J Trauma Emerg Surg. 2022 Oct;48(5):3729-3735. doi: 10.1007/s00068-021-01660-w. Epub 2021 Apr 3.

    PubMed 33811488
  • Ran D, Wang C. Efficacy and safety of different fixation methods for unstable anterior pelvic ring fractures: a Bayesian network meta-analysis. Ann Med. 2025 Dec;57(1):2563000. doi: 10.1080/07853890.2025.2563000. Epub 2025 Oct 6.

    PubMed 41054280
  • Lu S, Liu F, Xu W, Zhou X, Li L, Zhou D, Li Q, Dong J. Management of Open Tile C Pelvic Fractures and Their Outcomes: A Retrospective Study of 30 Cases. Ther Clin Risk Manag. 2022 Sep 10;18:929-937. doi: 10.2147/TCRM.S378740. eCollection 2022.

    PubMed 36119388
  • de Ridder VA, Whiting PS, Balogh ZJ, Mir HR, Schultz BJ, Routt MC. Pelvic ring injuries: recent advances in diagnosis and treatment. OTA Int. 2023 Jun 16;6(3 Suppl):e261. doi: 10.1097/OI9.0000000000000261. eCollection 2023 Jun.

    PubMed 37533441
  • Tienpratarn W, Nakpipat N, Yuksen C, Wongwaisayawan S, Phootothum Y, Jaiboon S. Clinical Associated Factors of Tile B/C Type of Pelvic Ring Fractures; a Retrospective Cross-sectional study. Arch Acad Emerg Med. 2024 May 12;12(1):e49. doi: 10.22037/aaem.v12i1.2243. eCollection 2024.

    PubMed 38962370
  • Ding H, Wang W, Sun W, Liu L, Huang M, Han D, Lu Y, Zhou J, Pan J. Clinical characteristics and mortality risk factors in polytrauma patients with pelvic fractures: a retrospective study based on an integrated multidisciplinary treatment approach. Int J Emerg Med. 2025 Oct 6;18(1):192. doi: 10.1186/s12245-025-00990-5.

    PubMed 41053562
  • Ohla J, Walus P, Wicinski M, Malkowski B, Turon B, Jablonski A, Gawryjolek M, Kellett K, Zabrzynski J. Pelvic Fractures in Adults and the Importance of Associated Injuries-A Current Multi-Disciplinary Approach. Clin Pract. 2025 Jul 11;15(7):130. doi: 10.3390/clinpract15070130.

    PubMed 40710040
  • Hermans E, Biert J, Edwards MJR. Epidemiology of Pelvic Ring Fractures in a Level 1 Trauma Center in the Netherlands. Hip Pelvis. 2017 Dec;29(4):253-261. doi: 10.5371/hp.2017.29.4.253. Epub 2017 Dec 1.

    PubMed 29250500

Questions about this trial

What is this clinical trial studying?

A study testing Robot Assisted Minimally Invasive Fixation in people with Pelvic Fracture, run by Junbo Liang.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 3 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Junbo Liang, Dr. (0576-85190463, liangjb@enzemed.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Visual Analog Scale (VAS) for Pain (time frame: At 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 12 hours, day 1, day 2, day 3, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 1 year after treatment). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07624942, which also lists 11 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jun 2026.

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