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Not yet recruitingNCT06152952Updated Dec 5, 2023

Rhomboid Flap vs. Deep Suturing in Recurrent Pilonidal Sinus

An observational study in Pilonidal Sinus Infected, sponsored by Assiut University. Not yet recruiting. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2023-12-05.

Sponsored by Assiut University · Observational

From the registry’s dates

  • Primary completion was expected by Jan 2026, 10 months ago, but the record still lists the study as not yet recruiting.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
30
Ages
18 Years to 60 Years
Sex
All
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Study summary

This prospective clinical trial aims to compare the perioperative outcomes of rhomboid flap versus deep suturing in the management of recurrent sacrococcygeal pilonidal disease.

Read the detailed description

Pilonidal disease derives its name from Latin- pilus meaning "hair," and nidus meaning "nest" . The source of pilonidal disease is thought to be a deep intergluteal sulcus. It is widely accepted that the establishment of the pilonidal sinus results from the penetration of shed hair shafts through the skin, which ultimately leads to an acute or chronic infected site .

Pilonidal disease is largely considered a surgical disease, especially in acute instances with secondary infection and abscess. Infection or abscess requires incision and drainage. Definitive treatment is delayed the majority of the time if there is an acute infection or abscess until after the infection has been addressed. Surgical options for chronic disease are numerous and can include "pit picking," curettage, aspiration, unroofing, or surgical excision. Defects can be closed primarily, with flaps or grafts, or allowed to heal by secondary intention .

The most serious problem of the various surgical approaches proposed is the recurrence rate, ranging from 0% to 40% .

The surgical treatment of patients with recurrent disease does not differ from the surgical treatment of primary pilonidal disease. In case of a recurrence with an abscess, incision and drainage prevail, while in case of chronic recurrent disease, a flap based procedure may be indicated following sinus excision with scarring, like the rhomboid flap .

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Conditions studied

  • Pilonidal Sinus Infected

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Keywords

  • Rhomboid flap
  • Deep suturing
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In context

Pilonidal Sinus

109 studies on the registry are indexed under Pilonidal Sinus; 32 are open to participants now.

This study's planned enrollment of 30 is below the median of 145 across 37 observational studies indexed under Pilonidal Sinus.

Browse Pilonidal Sinus 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
18 Years to 60 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Diversity in population, some come from a rural environment and others from the city

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

  • Adult patients aged between 18 and 60 years;
  • Patients with one or two small inactive sinuses will be included for easier excisional procedures;
  • Previous intervention for pilonidal disease whether surgical or non-surgical;

Exclusion criteria

Exclusion Criteria:

1 - Patients with an acute abscess. 2- Patients with mall inactive pilonidal sinus disease. 3- Age beyond the previous limits. 4- Patients with primary pilonidal disease. 5- Refusal to participate in the study. 6- Unfit for anaesthesia and surgery. 7- Patients with malignant neoplasms or inflammatory bowel disease.

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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
30 participants (estimated)
Target follow-up
1 Year
Patient registry
Yes

Groups and cohorts

  • Group 1 : The rhomboid flap Approach

    The flap will be dissected deep to the gluteal fascia (subfascial level) so as to raise thick a fasciocutaneous flap. This will assure good vascularity of the flap without dead space. The rhomboid flap (CDEF) will be mobilized from the gluteal fascia and sutured without tension in three layers (gluteal fascia with 2/0 Vicryl, subcutaneous fat with 3/0 Vicryl, and the skin with 4/0 Prolene). As all sides will be equal in length, the flap fits in place without tension. A suction drain will be left behind and the wound will be dressed as usual. Pressure wound dressing will be applied and removed on the third postoperative day.

    Procedure: The rhomboid flap approach

  • Group 2 : The deep suturing approach

    A vertical elliptical incision encompassing all pilonidal pits will be made and excision of the sinus will be carried out down to the level of the sacrococcygeal fascia. Tension will be released by a limited sharp dissection above the fascia. After haemostasis is ensured using electrocautery, a suction drain will be inserted through a separate incision, then the deep fascia will be approximated and the wound will be closed in layers using polyglactin 0 sutures. Finally, the skin will be closed with 2/0 polypropylene interrupted mattress sutures.

    Procedure: The rhomboid flap approach

Interventions

  • ProcedureThe rhomboid flap approach

    The rhomboid flap Approach : The flap will be dissected deep to the gluteal fascia (subfascial level) so as to raise thick a fasciocutaneous flap. This will assure good vascularity of the flap without dead space. The rhomboid flap (CDEF) will be mobilized from the gluteal fascia and sutured without tension in three layers The deep suturing approach : A vertical elliptical incision encompassing all pilonidal pits will be made and excision of the sinus will be carried out down to the level of the sacrococcygeal fascia. T then the deep fascia will be approximated and the wound will be closed

    Also known as: The deep suturing approach

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What researchers measure

Primary outcomes

  1. Primary Outcome of comparing the perioperative of rhomboid flap versus deep suturing in the management of recurrent sacrococcygeal pilonidal disease.

    Primary Outcome : Postoperative recurrence rate. Recurrence will be defined as the additional outbreak of signs and symptoms of pilonidal disease after a disease-free interval following complete wound healing

    Time frame: baseline

Secondary outcomes

  1. Secondary Outcome (subsidiary)of comparing the perioperative of rhomboid flap versus deep suturing in the management of recurrent sacrococcygeal pilonidal disease.

    Secondary Outcome (subsidiary): 1. Operative time. 2. Postoperative pain. 3. The incidence of other complications. 4. Postoperative cosmetic outcome. 5. The duration to walk, sit on toilet free from pain. 6. The duration till complete daily activities.

    Time frame: baseline

Other outcomes

  1. Data management and analysis (Details needed):

    Data collection Data will be collected by the principal investigator from Assiut University Hospital from. Computer software We will use SPSS version 26 for analyzing the data. Statistical tests Quantitative data will be presented as means ± SD. Categorical and binary variables will be tested using the χ 2 test and Fisher's exact test. Statistical significance will be assumed when p \< 0.05.

    Time frame: baseline

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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Esposito C, Cerulo M, Esposito G, Turco A, Borgogni R, Carulli R, Di Mento C, Del Conte F, Coppola V, Escolino M. Endoscopic Treatment of Pilonidal Sinus Disease in Children: A Systematic Review. J Laparoendosc Adv Surg Tech A. 2023 May;33(5):512-517. doi: 10.1089/lap.2022.0564. Epub 2023 Apr 6. PubMed 37023403 ↗
  • Konoplitskyi V, Shavliuk R, Dmytriiev D, Dmytriiev K, Kyrychenko O, Zaletskyi B, Olkhomiak O. Pilonidal disease: changes in understanding of etiology, pathogenesis and approach to treatment. Wiad Lek. 2019 Aug 31;72(8):1559-1565. PubMed 32012508 ↗
  • Harries RL, Alqallaf A, Torkington J, Harding KG. Management of sacrococcygeal pilonidal sinus disease. Int Wound J. 2019 Apr;16(2):370-378. doi: 10.1111/iwj.13042. Epub 2018 Nov 15. PubMed 30440104 ↗
  • Grabowski J, Oyetunji TA, Goldin AB, Baird R, Gosain A, Lal DR, Kawaguchi A, Downard C, Sola JE, Arthur LG, Shelton J, Diefenbach KA, Kelley-Quon LI, Williams RF, Ricca RL, Dasgupta R, St Peter SD, Somme S, Guner YS, Jancelewicz T. The management of pilonidal disease: A systematic review. J Pediatr Surg. 2019 Nov;54(11):2210-2221. doi: 10.1016/j.jpedsurg.2019.02.055. Epub 2019 Mar 19. PubMed 30948198 ↗
  • de Parades V, Bouchard D, Janier M, Berger A. Pilonidal sinus disease. J Visc Surg. 2013 Sep;150(4):237-47. doi: 10.1016/j.jviscsurg.2013.05.006. Epub 2013 Aug 1. PubMed 23911903 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Dec 2023; primary completion for Jan 2026, 25 months later.

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

Registered
Nov 12, 2023
First posted
Dec 1, 2023
StartEst.
Dec 2023
Primary completionEst.
Jan 2026
CompletionEst.
Jan 2026
Last update
Dec 5, 2023
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 Dec 5, 2023, 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
NCT06152952
Lead sponsor
Assiut University
Responsible party
Ahmed Dify Kamal (Principal Investigator, Assiut University) — Principal investigator
First posted
Dec 1, 2023
Start date
Dec 2023 (estimated)
Primary completion
Jan 2026 (estimated)
Completion
Jan 2026 (estimated)
Last update
Dec 5, 2023

Study contacts

Ahmed Dify, G.P.
Contact
Ahmeddify94@gmail.com
00201022552241

Oversight

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 Dec 2023. You cannot join it, but the record below documents what was studied.

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