Radiological Outcomes of Modified Extra-articular LCL

Radiological Outcomes of Modified Extra-articular Lateral Column Lengthening Procedure for Correction of Adult Acquired Flexible Flatfoot Deformity

To assess radiological and functional outcomes of modified extra-articular lateral column lengthening procedure for correction of adult acquired flexible flatfoot deformity

Study Overview

• Status: Recruiting
• Conditions: Adult Acquired Flexible Flatfoot Deformity After Failure of Conservative Treatment
• Intervention / Treatment: Procedure: Extra-articular Lateral Column Lengthening Procedure

Detailed Description

Measurement of

1. Calcencal pitch : This angle is formed on a weight-bearing lateral foot radiograph between the calcaneal Inclination axis and the supporting horizontal surface(10), normal ranges of between 10-25° and 20-30 have Been proposed(11)
2. Meary's angle: It is the angle between a line drawn along the longitudinal axis of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) , typically', Meary's angle is 0°, with abnormal values considered angle >4° convex upward: pes cavus , angle <-4 convex downward: pes planus, It can be used to classify the severity of deformity
3. lateral talocalceneal angle : the angle between the calcaneal inclination axis and the mid-talar axis , The lateral talocalcaneal angle should normally measure between 25 and 40°, >40° diagnoses flatfoot deformity(12)
4. Talonavicular coverage angle: it is the medial angle between ( talar head articular surface and Proximal navicular articular surface) ,Interpreting the talonavicular coverage angle (13)Normal: <7,Adult Acquired flatfoot disease: >7°

• Study Type: Observational
• Enrollment (Estimated): 1

Contacts and Locations

• Study Contact: Name: Hosam Eldeen Kamal Mohamed, Resident; Phone Number: +201015106584; Email: Hossam.15235597@med.aun.edu.eg

Study Locations

• Egypt
  • Assiuu
    • Assiut, Assiuu, Egypt
      • Recruiting
      • Faculty of Medicine Assiut University
      • Contact: Amr Abo Alfadle, Lecturer; Phone Number: +201007788699; Email: Amr.a.mohamed@aun.edu.eg

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: Yes

• Sampling Method: Non-Probability Sample

Study Population

Adult flexible acquired flatfoot deformity which doesn't include genetic or spasmodic flatfoot deformity in children

Description

Inclusion Criteria:

- 1) Age : adult ( age above 16 years old and below 65 years old

2) symptomatic flexible flat foot after failure of Conservative treatment

Exclusion Criteria:

• 1- Age: (<16,>65) years old 2 -Previous foot surgery 3- autoimmune disease
• 4 Uncontrolled blood sugar 5- Osteoprotic patient 6- Infection

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Radiological outcome & by standard erect plain x ray after 3 months	Measurement of; Calcencal pitch : this angle is formed on a weight-bearing lateral foot radiograph between the calcaneal Inclination axis and the supporting horizontal surface , correction angle needed ≈ 15-25°.; Meary's angle: It is the angle between a line drawn along the longitudinal axis of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) , correction angle needed ≈ 0-1°.; lateral talocalceneal angle : the angle between the calcaneal inclination axis and the mid-talar axis correction angle ≈ 25 and 40° .; Talonavicular coverage angle: it is the medial angle between ( talar head articular surface and Proximal navicular articular surface	3 months after the surgery

Secondary Outcome Measures

Outcome Measure	Time Frame
clinical outcome by American orthopedic foot and ankle score (hindfoot	6 months after the surgery when the patient restore his life activities maximally

Collaborators and Investigators

• Sponsor: Assiut University

Study record dates

Study Major Dates

• Study Start (Estimated): August 16, 2024
• Primary Completion (Estimated): December 1, 2027
• Study Completion (Estimated): February 1, 2028

Study Registration Dates

• First Submitted: August 16, 2024
• First Submitted That Met QC Criteria: August 16, 2024
• First Posted (Actual): August 20, 2024

Study Record Updates

• Last Update Posted (Actual): August 20, 2024
• Last Update Submitted That Met QC Criteria: August 16, 2024
• Last Verified: August 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Musculoskeletal Diseases; Musculoskeletal Abnormalities; Limb Deformities, Congenital; Foot Deformities; Foot Deformities, Acquired; Foot Deformities, Congenital; Lower Extremity Deformities, Congenital; Talipes; Congenital Abnormalities; Flatfoot
• Other Study ID Numbers: Extra-articular LCL of AAFFD

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No