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Arthroscopic Versus Open Subtalar Arthrodesis for the Treatment of Subtalar Arthritis

NCT07486596 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2026-04-13

No results posted yet for this study

Summary

The goal of this clinical trial is to compare two surgical approaches for treating symptomatic subtalar arthritis in patients who have failed conservative treatment. The main questions it aims to answer are:

What is the fusion rate for each surgical technique? Which technique achieves bony union faster with fewer complications?

Researchers will compare arthroscopic subtalar arthrodesis (ASTA) using a combined three-to-four portal approach to open in situ subtalar arthrodesis (ISTA) to see if one technique results in superior fusion rates, faster healing, and better functional outcomes.

Participants will:

Undergo one of two surgical procedures (either ASTA or ISTA) Attend follow-up visits at 6 weeks, 3 months, 6 months, and 12 months after surgery Have X-rays taken to assess fusion and bone healing Complete pain and function questionnaires at each visit

Conditions

  • Subtalar Arthritis

Interventions

PROCEDURE

Arthroscopic Subtalar Arthrodesis

Arthroscopic technique using a 4 mm 30° arthroscope in the prone position with a combined three-to-four portal approach (anterolateral sinus tarsi portal, posterolateral portal, posteromedial portal). Includes complete synovectomy, motorized debridement of posterior facet cartilage, subchondral microfracture drilling, and percutaneous screw fixation (two 6.5-7.3 mm cannulated screws) under fluoroscopic guidance.

PROCEDURE

Open In Situ Subtalar Arthrodesis

Lateral sinus tarsi approach performed supine with 4-5 cm oblique incision. Complete cartilage debridement to bleeding cancellous bone, subchondral plate perforation, and percutaneous screw fixation (two cannulated screws) under fluoroscopic guidance.

Sponsors & Collaborators

  • Kasr El Aini Hospital

    collaborator OTHER

  • Cairo University

    lead OTHER

Principal Investigators

  • Helal Hosny Abdulaziz, M.B., B.Ch., M.Sc. · Cairo University

  • Ahmed Samir Bashandy · Cairo University

  • Ahmed Mohamed Khedr · Cairo University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-12-05
Primary Completion
2026-04-30
Completion
2026-06-30

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07486596 on ClinicalTrials.gov