NCT07040293

Brief Summary

Hemorrhage on the surface of cancellous bone presents a significant challenge in orthopedic surgery. Traditional bone wax, commonly utilized for hemostasis in bone wounds, is non-absorbable and associated with various complications, including pseudarthrosis, paralysis, venous sinus thrombosis, chronic inflammation, allergic reactions, and infections, thereby limiting its clinical utility. In contrast, absorbable bone wax, primarily composed of medical-grade water-soluble polymer materials, exhibits excellent biocompatibility. It is fully absorbed, excreted, or eliminated by the body without leaving toxic residues. This study employs a rigorous efficacy design to select an appropriate patient cohort for lumbar fusion surgery, based on specific inclusion and exclusion criteria. Participants are randomly assigned to either an experimental group receiving absorbable bone wax or a control group receiving traditional bone wax, facilitating a randomized, open-label, parallel-controlled clinical trial. This study aims to evaluate the comparative effects of absorbable bone wax versus traditional bone wax on the rate of bone fusion following hemostasis of bone wounds. The objective is to furnish robust evidence-based insights into the application of absorbable bone wax for bone wounds necessitating fusion, thereby establishing a safe, effective, and broadly applicable technique for bone wound hemostasis in clinical practice.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
330

participants targeted

Target at P75+ for not_applicable

Timeline
27mo left

Started Jul 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Study Progress28%
Jul 2025Jun 2028

First Submitted

Initial submission to the registry

June 15, 2025

Completed
12 days until next milestone

First Posted

Study publicly available on registry

June 27, 2025

Completed
4 days until next milestone

Study Start

First participant enrolled

July 1, 2025

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2028

Last Updated

June 27, 2025

Status Verified

June 1, 2025

Enrollment Period

2.5 years

First QC Date

June 15, 2025

Last Update Submit

June 26, 2025

Conditions

Keywords

absorbable bone waxtraditional bone waxfacet fusion after lumbar fusion surgeryhemostasis

Outcome Measures

Primary Outcomes (1)

  • The clinical fusion rate of lumbar facet joints

    The proportion of individuals achieving the clinical fusion standard of the facet joint was assessed within each group. Six months postoperatively, the fusion status of the facet joints at the surgical segments was evaluated using continuous thin-slice CT plain scans combined with three-dimensional reconstruction images of the lumbar vertebrae. The evaluation criteria were based on the guidelines established by Ren et al. (2020) in their study on modified facet joint fusion for lumbar degenerative disease. According to these criteria, clinical fusion is confirmed when one side of the facet joint attains grade I or grade II radiological fusion standards.

    6 months

Secondary Outcomes (2)

  • The success rate of hemostasis within three minutes

    3 minutes

  • Postoperative wound healing

    14 days

Other Outcomes (4)

  • Incidence of adverse events

    6 months

  • Postoperative infection rate

    6 months

  • Reoperation rate

    6 months

  • +1 more other outcomes

Study Arms (2)

Absorbable bone wax gruop

EXPERIMENTAL
Device: Absorbable bone wax for hemostasis in the osteotomy surface of the facet joint

Traditional bone wax group

ACTIVE COMPARATOR
Device: Traditional bone wax for hemostasis in the osteotomy surface of the facet joint

Interventions

Following the enrollment of patients who underwent posterior lumbar decompression, intervertebral bone graft, and internal fixation surgery, a "V-shaped" osteotomy was executed at the facet joint contralateral to the decompression site, with 0.5g absorbable bone wax subsequently applied to the osteotomy surface.

Absorbable bone wax gruop

Following the enrollment of patients who underwent posterior lumbar decompression, intervertebral bone graft fusion, and internal fixation surgery, a "V-shaped" osteotomy was executed at the facet joint contralateral to the decompression site, with 0.5g traditional bone wax subsequently applied to the osteotomy surface.

Traditional bone wax group

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants must be aged between 18 and 75 years, with no restrictions on gender.
  • Participants with conditions such as single-segment lumbar intervertebral disc protrusion, lumbar spondylolisthesis, and lumbar spinal stenosis who are scheduled to undergo posterior decompression, intervertebral fusion, and internal fixation surgery.
  • Participants must be able to comprehend the objectives of the study, willingly participate, and provide informed consent by signing the consent form.

You may not qualify if:

  • Individuals with a hemorrhagic predisposition or coagulation disorders, indicated by a prothrombin time (PT) of 18 seconds or greater, and those with a history of prolonged anticoagulant use.
  • Individuals presenting with lumbar spine infections or fractures.
  • Individuals with known allergies to materials such as polyethylene glycol, sodium carboxymethyl cellulose, and bone wax (including beeswax, paraffin, and isopropyl palmitate).
  • Individuals whose conditions are critical, making it challenging to accurately assess the efficacy and safety of the equipment.
  • Individuals deemed by researchers to have poor compliance, rendering them unable to fulfill the study requirements.
  • Women who are currently pregnant, intend to become pregnant within the past year, or are breastfeeding.
  • Individuals who have participated in other clinical trials within the preceding 30 days to prevent cross-interference.
  • Individuals with significant complications or comorbidities, such as severe cardiovascular, hepatic, renal, or other chronic conditions that could influence surgical risks and research outcomes.
  • Individuals identified by researchers as having a life expectancy of less than six months.
  • Individuals with severe osteoporosis, defined as a bone mineral density T-score of ≤-2.5 accompanied by fragility fractures.
  • Any other individuals deemed unsuitable for participation in this clinical trial by the researchers.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shanghai Changzheng Hospital

Shanghai, Shanghai Municipality, 200003, China

Location

Related Publications (17)

  • Ren Z, Li Z, Li S, Xu D, Chen X. Modified Facet Joint Fusion for Lumbar Degenerative Disease: Case Series of a Fusion Technique, Clinical Outcomes, and Fusion Rate in 491 Patients. Oper Neurosurg. 2020 Sep 1;19(3):255-263. doi: 10.1093/ons/opaa147.

    PMID: 32469075BACKGROUND
  • Vestergaard RF, Nielsen PH, Terp KA, Soballe K, Andersen G, Hasenkam JM. Effect of hemostatic material on sternal healing after cardiac surgery. Ann Thorac Surg. 2014 Jan;97(1):153-60. doi: 10.1016/j.athoracsur.2013.08.030. Epub 2013 Oct 8.

    PMID: 24119983BACKGROUND
  • An KC, Kong GM, Park DH, Baik JM, Youn JH, Lee WS. Comparison of Posterior Lumbar Interbody Fusion and Posterolateral Lumbar Fusion in Monosegmental Vacuum Phenomenon within an Intervertebral Disc. Asian Spine J. 2016 Feb;10(1):93-8. doi: 10.4184/asj.2016.10.1.93. Epub 2016 Feb 16.

    PMID: 26949464BACKGROUND
  • Kim JG, Ham DW, Zheng H, Kwon O, Kim HJ. Evaluating the Efficacy of Water-Soluble Bone Wax (Tableau Wax) in Reducing Blood Loss in Spinal Fusion Surgery: A Randomized, Controlled, Pilot Study. Medicina (Kaunas). 2023 Aug 25;59(9):1545. doi: 10.3390/medicina59091545.

    PMID: 37763664BACKGROUND
  • Wang R, Jin Z, Gao J, Ma Y, Han Q. Effectiveness and Biocompatibility Evaluation of a Novel Absorbable Bone Wax Used in Bone Tissue. Tissue Eng Part C Methods. 2024 Aug;30(8):353-363. doi: 10.1089/ten.TEC.2024.0144.

    PMID: 39113538BACKGROUND
  • Duan Q, Liu H, Zheng L, Cai D, Huang G, Liu Y, Guo R. Novel resorbable bone wax containing beta-TCP and starch microspheres for accelerating bone hemostasis and promoting regeneration. Front Bioeng Biotechnol. 2023 Jan 19;11:1105306. doi: 10.3389/fbioe.2023.1105306. eCollection 2023.

    PMID: 36741749BACKGROUND
  • Choi SY, Rhim J, Heo SA, Han WJ, Kim MH, Ha CW. Efficacy and safety of a novel hemostatic material, BoneStat, compared with Ostene and Bone Wax in a rat calvarial defect model. Int J Artif Organs. 2021 Oct;44(10):734-747. doi: 10.1177/03913988211021428. Epub 2021 Aug 13.

    PMID: 34387533BACKGROUND
  • Tham T, Roberts K, Shanahan J, Burban J, Costantino P. Analysis of bone healing with a novel bone wax substitute compared with bone wax in a porcine bone defect model. Future Sci OA. 2018 Jul 26;4(8):FSO326. doi: 10.4155/fsoa-2018-0004. eCollection 2018 Sep.

    PMID: 30271614BACKGROUND
  • Wellisz T, An YH, Wen X, Kang Q, Hill CM, Armstrong JK. Infection rates and healing using bone wax and a soluble polymer material. Clin Orthop Relat Res. 2008 Feb;466(2):481-6. doi: 10.1007/s11999-007-0067-5. Epub 2008 Jan 10.

    PMID: 18196435BACKGROUND
  • Gibbs L, Kakis A, Weinstein P, Conte JE Jr. Bone wax as a risk factor for surgical-site infection following neurospinal surgery. Infect Control Hosp Epidemiol. 2004 Apr;25(4):346-8. doi: 10.1086/502403.

    PMID: 15108734BACKGROUND
  • Schonauer C, Tessitore E, Barbagallo G, Albanese V, Moraci A. The use of local agents: bone wax, gelatin, collagen, oxidized cellulose. Eur Spine J. 2004 Oct;13 Suppl 1(Suppl 1):S89-96. doi: 10.1007/s00586-004-0727-z. Epub 2004 Jun 22.

    PMID: 15221572BACKGROUND
  • Julsrud ME. A surgical complication: allergic reaction to bone wax. J Foot Surg. 1980 Fall;19(3):152-4. No abstract available.

    PMID: 7021652BACKGROUND
  • Solomon LB, Guevara C, Buchler L, Howie DW, Byard RW, Beck M. Does bone wax induce a chronic inflammatory articular reaction? Clin Orthop Relat Res. 2012 Nov;470(11):3207-12. doi: 10.1007/s11999-012-2457-6. Epub 2012 Jul 4.

    PMID: 22760602BACKGROUND
  • Crocker M, Nesbitt A, Rich P, Bell B. Symptomatic venous sinus thrombosis following bone wax application to emissary veins. Br J Neurosurg. 2008 Dec;22(6):798-800. doi: 10.1080/02688690802256399.

    PMID: 19085366BACKGROUND
  • Stein JM, Eskey CJ, Mamourian AC. Mass effect in the thoracic spine from remnant bone wax: an MR imaging pitfall. AJNR Am J Neuroradiol. 2010 May;31(5):844-6. doi: 10.3174/ajnr.A1830. Epub 2009 Nov 12.

    PMID: 19910449BACKGROUND
  • Kumar A, Kale SS, Dutta R, Kumar A. Post-thoracotomy paraplegia due to epidural migration of bone wax. Eur J Cardiothorac Surg. 2009 Apr;35(4):734-6. doi: 10.1016/j.ejcts.2008.11.037. Epub 2009 Feb 23.

    PMID: 19233676BACKGROUND
  • Angelini GD, el-Ghamari FA, Butchart EG. Poststernotomy pseudo-arthrosis due to foreign body reaction to bone wax. Eur J Cardiothorac Surg. 1987;1(2):129-30. doi: 10.1016/1010-7940(87)90025-x.

    PMID: 2856608BACKGROUND

MeSH Terms

Conditions

Ankylosis

Condition Hierarchy (Ancestors)

Joint DiseasesMusculoskeletal Diseases

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
vice director

Study Record Dates

First Submitted

June 15, 2025

First Posted

June 27, 2025

Study Start

July 1, 2025

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

June 30, 2028

Last Updated

June 27, 2025

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will share

Locations