Direct and Reversed Dorsal Digito-metacarpal Flaps: A Review of 24 Cases

Not Applicable

Completed

• Conditions: Soft Tissue Injuries; Finger Injuries
• Interventions: Procedure: Dorsal digito-metacarpal flap

• Registration Number: NCT01927003
• Lead Sponsor: The Second Hospital of Tangshan

Brief Summary

Multiple digital injuries are often complex and severe, and the commonly used local and regional flaps may not be feasible. The authors reconstruct soft tissue defects of the fingers using the dorsal digito-metacarpal flap and evaluate the efficacy of this technique.

Detailed Description

At final follow-up, we measure the sensibility of the flaps using the static 2-point discrimination test. The Static 2-point discrimination test determines the minimal distance at which a subject can sense the presence of two needle. The modified American Society for Surgery of the Hand guidalines are used to stratify discriminator measurements(excellent \<6 mm, good 6-10 mm, fair 11-15 mm, poor \>15 mm). Each area is tested 3 times with a Discriminator (Ali Med, Dedham, MA). Two out of 3 correct answers are considered proof of perception before proceeding to another lower value. We stopp at 4mm as a limit of 2PD and consider this normal. The measurements are performed at a single time point at final follow up.

Study Timeline

• Study Start: 2009-04
• Status Verified: 2010-04
• Primary Completion: 2011-09
• Study Completion: 2012-09
• Study First Submitted: 2013-08-19
• Study First Submitted QC: 2013-08-19
• Study First Posted: 2013-08-21
• Last Update Submitted: 2018-10-25
• Last Update Posted: 2018-10-29

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 24

Inclusion Criteria

• the injured and adjacent fingers are unable to be used as the donor due to multiple digital injuries
• a soft tissue defect > 1.5 cm in length with exposed bone or tendon
• the reverse DMA flap may not be appropriate for tissue reconstruction due to the concomitant injuries or due to the limitation of the rotation arc
• a patient between 15 and 60 years of age

Exclusion Criteria

• concomitant injuries involved all the finger that precluded their use as donor sites
• a defect less than 1.5 cm in length
• injuries to the course of the vascular pedicle

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Surgical flap	Dorsal digito-metacarpal flap	Dorsal digito-metacarpal flap is based on the dorsal digital artery and dorsal metacarpal artery.

Primary Outcome Measures

Name	Time	Method
The Static 2-point discrimination test	18 to 24months	The Static 2-point discrimination test determines the minimal distance at which a subject can sense the presence of two needle. The modified American Society for Surgery of the Hand guidalines are used to stratify discriminator measurements(excellent \<6 mm, good 6-10 mm, fair 11-15 mm, poor \>15 mm). Each area is tested 3 times with a Discriminator (Ali Med, Dedham, MA). Two out of 3 correct answers are considered proof of perception before proceeding to another lower value. We stopped at 4mm as a limit of 2PD and considered this normal. The measurements are performed at a single time point at final follow up.

Secondary Outcome Measures

Name	Time	Method
Patient satisfaction	18 to 24 months	Patients report their satisfaction with the appearance of the flap and the donor site according to the Michigan Hand Outcomes Questionnaire that is based on a 5-point response scale.

Trial Locations

Locations (1)

The Second Hospital of Tangshan; 🇨🇳 Tangshan, Hebei, China