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CompletedNCT06521580Updated Jul 26, 2024

Outcomes of Patients With Osteopetrosis Weight-bearing Bone Fractures

An interventional study of Open reduction and internal fixation in Osteopetrosis, sponsored by Kasr El Aini Hospital. Completed at 1 site in Egypt. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-07-26.

Sponsored by Kasr El Aini Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years 6 months after the study started (first participant enrolled Jan 2022, registered Jul 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
6
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Osteopetrosis is a rare genetic disorder characterized by the abnormal hardening and density of bones, leading to increased brittleness and susceptibility to fractures. This condition presents significant challenges in fracture management due to the altered bone architecture and compromised healing capacity. Open reduction and internal fixation (ORIF) is a common surgical technique employed to stabilize fractures, but its efficacy and outcomes in patients with osteopetrosis are not well-documented. This study aims to evaluate the clinical and radiological outcomes of ORIF in adult patients with weight-bearing bone fractures due to osteopetrosis, providing insights into the effectiveness and potential complications of this treatment approach.

Read the detailed description

Osteopetrosis, also known as marble bone disease, is a rare genetic disorder that leads to the abnormal hardening and densification of bones due to defective osteoclast-mediated bone resorption. This imbalance results in bones that are abnormally dense yet fragile and prone to fractures. Osteopetrosis is typically categorized into three major types based on severity and inheritance patterns: autosomal recessive infantile osteopetrosis, autosomal recessive intermediate osteopetrosis, and autosomal dominant adult osteopetrosis.

In adult patients, osteopetrosis often presents with a range of clinical manifestations including bone pain, frequent fractures, cranial nerve compression, and hematological abnormalities due to bone marrow space reduction. Weight-bearing bones such as the femur, tibia, and pelvis are particularly susceptible to fractures due to the mechanical stress they endure. These fractures pose significant clinical challenges because the dense bone structure complicates surgical intervention and delays healing.

Open reduction and internal fixation (ORIF) is a common surgical technique used to treat fractures by realigning and stabilizing the broken bones with hardware such as plates, screws, or rods. In the context of osteopetrosis, ORIF can be particularly challenging due to the sclerotic nature of the bone, which makes drilling and hardware placement difficult, and the poor vascularity, which can impede healing and increase the risk of complications such as nonunion or infection.

Despite these challenges, ORIF remains a critical option for managing fractures in osteopetrosis patients. Understanding the clinical and radiological outcomes of this intervention can help optimize treatment protocols and improve patient care. This case series aims to evaluate the outcomes of ORIF in adult patients with osteopetrosis-induced weight-bearing bone fractures. By examining factors such as fracture healing, functional recovery, and complication rates, this study seeks to provide valuable insights into the effectiveness and potential risks associated with ORIF in this unique patient population.

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Conditions studied

  • Osteopetrosis

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03

In context

Osteopetrosis

22 studies on the registry are indexed under Osteopetrosis; 4 are open to participants now.

This study's enrollment of 6 is below the median of 15 across 17 interventional studies indexed under Osteopetrosis.

Browse Osteopetrosis studies →

Lead sponsor

Kasr El Aini Hospital is the lead sponsor of 287 studies on the registry; 34 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

All patients with adult osteopetrosis above 18 years of age

Exclusion criteria

Exclusion Criteria:

Non-weight-bearing fractures Non-osteopetrosis patients Pediatric patients Previous fracture surgery Concurrent bone conditions Inability to follow up Infection at fracture site Severe comorbidities Pregnancy Non-surgical treatment preference

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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
6 participants (actual)

Study arms

  • Experimental
    open reduction and internal fixation

    Open reduction and internal fixation (ORIF) is a common surgical technique used to treat fractures by realigning and stabilizing the broken bones with hardware such as plates, screws, or rods. In the context of osteopetrosis, ORIF can be particularly challenging due to the sclerotic nature of the bone, which makes drilling and hardware placement difficult, and the poor vascularity, which can impede healing and increase the risk of complications such as nonunion or infection.

    Procedure: Open reduction and internal fixation

Interventions

  • ProcedureOpen reduction and internal fixation

    Open reduction and internal fixation of those with osteopetrosis and weight bearing fractures

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What researchers measure

Primary outcomes

  1. Bone union

    We follow up the patients for bone union through radiological examination

    Time frame: 6 months

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Study locations

1 site
  • Kasr Al Ainy-Cairo University- Faculty of Medicine
    Cairo, Manial 11956, Egypt
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References and documents

Individual participant data

Plan to share: No — unless upon reasonable request

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 26, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06521580
Responsible party
Ahmed Omar Sabry (Dr., Kasr El Aini Hospital) — Principal investigator
First posted
Jul 26, 2024
Start date
Jan 1, 2022
Primary completion
Jan 1, 2024
Completion
Jun 24, 2024
Last update
Jul 26, 2024

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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