A clinical study of surgical results of thumb polydactyly based on a new classification

A retrospective study of surgical outcomes of thumb polydactyly based on the duplication range classification - A clinical study of thumb polydactyly using the duplication range classification

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000053218

Enrollment

300

Registered

2024-01-06

Start date

2024-01-06

Completion date

Unknown

Last updated

2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Polydactyly of the thumb

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. With preoperative X-rays at 0-1 years of age 2. Who underwent their first surgery before the age of 3 3. With follow-up for 3 years or more after surgery 4. With anteroposterior X-rays of the thumb taken postoperative 1 year and 3 years after surgery, by which joint deviation angles of the MP joint and IP joint can be measured.

Exclusion criteria

Exclusion criteria: 1. Insufficient X-rays 2. Unclear surgical records 3. Judged by the principal investigator to be unsuitable for this study

Design outcomes

Primary

Measure	Time frame
Postoperative skeletal malalignment	—

Countries

Japan

Contacts

Public ContactSusumu Saito

Graduate School of Medicine and Faculty of Medicine, Kyoto University Department of Plastic and Reconstructive Surgery

susumus@kuhp.kyoto-u.ac.jp075-751-3613

Outcome results