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Not yet recruitingNCT06957353Updated May 4, 2025

Oblique K-wire Control in Calcaneal Osteotomy for Flatfoot Correction

An interventional study of oblique K-wire technique in controlling Calcaneal displacement during osteotomy in flatfoot correction in Flat Foot, sponsored by Assiut University. Not yet recruiting at 1 site in Egypt. Open to participants aged 16 Years to 60 Years. Per ClinicalTrials.gov, last updated 2025-05-04.

Sponsored by Assiut University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2025, 1 year 4 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
16 Years to 60 Years
Sex
All
01

Study summary

Adult-acquired flatfoot deformity (AAFD) often requires surgical correction when conservative methods fail. Calcaneal displacement osteotomy is a key procedure in restoring alignment. This study introduces a novel K-wire technique to enhance control during surgery and minimize complications related to manual manipulation. It builds on prior research highlighting the limitations of traditional approaches in achieving precise fragment positioning.

Read the detailed description

Flat foot deformity, particularly adult - acquired flatfoot (AAFD), often necessitates surgical intervention when conservative treatment fail. Calcaneal displacement osteotomy is a common surgical procedure for correcting calcaneal displacement and achieving stable fixation. The proposed K-wire technique offers a novel approach to improve control and reduce complications associated with manual manipulation during surgery. Previous studies have indicated challenges with traditional methods in achieving precise fragment control. This study aims to address these gaps.

02

Conditions studied

  • Flat Foot

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Keywords

  • flat foot
  • calcaneal osteotomy
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In context

Flatfoot

173 studies on the registry are indexed under Flatfoot; 44 are open to participants now.

This study's planned enrollment of 20 is below the median of 40 across 122 interventional studies indexed under Flatfoot.

Browse Flatfoot studies →

Lead sponsor

Assiut University is the lead sponsor of 5,078 studies on the registry; 2,178 are open to participants now.

Of its 14 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

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Who can participate

Ages eligible
16 Years to 60 Years
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

  • symptomatic flatfoot that will undergo flatfoot correction with calcaneal displacement osteotomy.

Exclusion criteria

Exclusion Criteria:

  • prior foot surgery
  • Severe comorbidities or contradictions of the surgery
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Study design

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

Study arms

  • Other
    Oblique K-wire Control in Calcaneal Osteotomy for Flatfoot Correction

    oblique K-wire technique in controlling Calcaneal displacement during osteotomy in flatfoot correction

    Procedure: oblique K-wire technique in controlling Calcaneal displacement during osteotomy in flatfoot correction

Interventions

  • Procedureoblique K-wire technique in controlling Calcaneal displacement during osteotomy in flatfoot correction

    Under spinal Anaesthesia , patients will placed in lateral decubitus position. A standard lateral incision will be made over the calcaneus, and the osteotomy site will be exposed. An oblique K-wire will be inserted percutaneously into the posterior calcaneus under fluoroscopic guidance to facilitate the desired displacement. Cannulated screws will then be inserted across the osteotomy site to secure the calcaneal fragment. Post-operative care will include a non-weight bearing protocol for six weeks, followed by gradual weight bearing as tolerated.

06

What researchers measure

Primary outcomes

  1. assessment of degree of desired displacement

    Intra-operative assessment of degree of desired displacement clinical and radiological

    Time frame: baseline

07

Study locations

1 site
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References and documents

Publications

  • Cai Y, Zhao Z, Huang J, Yu Z, Jiang M, Kang S, Yuan X, Liu Y, Wu X, Ouyang J, Li W, Qian L. Morphological changes in flatfoot: a 3D analysis using weight-bearing CT scans. BMC Med Imaging. 2024 Aug 19;24(1):219. doi: 10.1186/s12880-024-01396-0. PubMed 39160476 ↗
  • Brilhault J. Calcaneal osteotomy for hindfoot deformity. Orthop Traumatol Surg Res. 2022 Feb;108(1S):103121. doi: 10.1016/j.otsr.2021.103121. Epub 2021 Oct 20. PubMed 34687951 ↗
  • Mueller G, Frosch KH, Barg A, Schlickewei C, Weel H, Krahenbuhl N, Priemel M, Mueller E. Impact of the medial displacement calcaneal osteotomy on foot biomechanics: a systematic literature review. Arch Orthop Trauma Surg. 2024 May;144(5):1955-1967. doi: 10.1007/s00402-024-05267-9. Epub 2024 Mar 30. PubMed 38554203 ↗
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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for May 2025; primary completion for Jun 2025, 1 month later.

Of 89 non-industry interventional studies with no phase under Flatfoot, half reached primary completion within 7 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 15. This study's planned 1 month is below that.

Counting every sponsor, half of 89 studies reached it within 7 months; a quarter within 2 and three quarters within 15.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 21, 2025
First posted
May 4, 2025
StartEst.
May 1, 2025
Primary completionEst.
Jun 30, 2025
CompletionEst.
Dec 30, 2025
Last update
May 4, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 4, 2025, 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
NCT06957353
Lead sponsor
Assiut University
Responsible party
Mina S. Fekry (assistant lecturer, Assiut University) — Principal investigator
First posted
May 4, 2025
Start date
May 1, 2025 (estimated)
Primary completion
Jun 30, 2025 (estimated)
Completion
Dec 30, 2025 (estimated)
Last update
May 4, 2025

Study contacts

Mina Safwat Fekry, assistant lecturer
Contact
MinaS.Fekry@aun.edu.eg
01280880281
Mohammed Mostafa Kotb, professor
Contact
Mohammed Mostafa Kotb, professir
principal investigator · Assiut University

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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