The Induced Membrane Technique for Bone Defects in the Hand and Upper Extremity: A Case Series

Area of Science:

• Orthopedic Surgery
• Trauma Surgery
• Limb Reconstruction

Background:

• Segmental bone defects in the hand and upper extremity pose significant treatment challenges.
• The induced membrane technique (IMT) is an emerging method for bone defect reconstruction.

Purpose of the Study:

• To evaluate the efficacy of the induced membrane technique (IMT) for treating segmental bone defects.
• To determine union rates and complication profiles associated with IMT in the upper extremity.

Main Methods:

• Retrospective review of 13 patients treated with IMT between 2012 and 2018.
• Inclusion criteria: segmental bone defects from trauma or chronic infection nonunion.
• Data collected: demographics, defect size, time to union, complications.

Main Results:

• Achieved an 84.6% union rate after the primary procedure.
• Average time to union was 14 weeks for a mean defect length of 2.73 cm.
• Soft tissue defects and reconstruction challenges were noted in 46.1% of patients.

Conclusions:

• The induced membrane technique (IMT) is a viable option for segmental bone defects in the upper extremity.
• Challenges remain, including persistent nonunion and soft tissue reconstruction complexities.