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. 2022 Jul 5:14:225-233.
doi: 10.2147/ORR.S367499. eCollection 2022.

The Relationship Between Patient Factors and Clinical Outcomes of Free Functional Muscle Transfer in Patients with Complete Traumatic Brachial Plexus Injury

Affiliations

The Relationship Between Patient Factors and Clinical Outcomes of Free Functional Muscle Transfer in Patients with Complete Traumatic Brachial Plexus Injury

Heri Suroto et al. Orthop Res Rev. .

Abstract

Purpose: Traumatic brachial plexus injury (TBPI) causes severe disabilities to the patients, affecting not only upper limb function but also the psychosocial and economic aspects. Free functional muscle transfer (FFMT) is one of the reconstruction modalities for the management of TBPI. The aim of this study is to evaluate the functional outcomes and their correlation to patient factors.

Patients and methods: This is a retrospective study of 131 patients who suffered from complete TBPI (C5-T1) and were treated with the FFMT procedure to restore elbow flexion and wrist extension from 2010 to 2018 in our institution. We evaluated the active range of motion (AROM), muscle power with MRC (Medical Research Council) scale, DASH score, and complications, with a minimum of 12-month follow-up.

Results: Following FFMT surgery, elbow flexion was significantly and successfully restored (MRC ≥ 3) in 75.5% of patients with an average AROM of 88.17 ± 41.29°. The wrist extension was restored in 42% of the patients with an average AROM of 20.69 ± 18.72°. There was no correlation between age, side of injury, and time to surgery with the functional outcomes. There was a weak correlation between education level, rehabilitation compliance, and elbow functional outcomes.

Conclusion: FFMT is a reliable surgical option to restore elbow flexion in TBPI with a high satisfactory result. Our findings suggested that the FFMT indication is potentially expanded regardless of the patient factors.

Keywords: FFMT; brachial plexus neuropathies; free tissue flaps; muscle transfer; peripheral nerve injuries; traumatic brachial plexus injury.

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Conflict of interest statement

The authors declare no potential conflict of interest with respect to the research, authorship, and/or publication of this article.

Figures

Figure 1
Figure 1
Free functional muscle transfer (FFMT) surgical technique illustration. The origin of the transferred gracilis muscle was implanted directly to the periosteum middle-third clavicle with continuous suture through proximal tendon part of gracilis muscle. The distal tendon was placed underneath the lacertus fibrosus and mobile wad compartment, and then attached to the proximal side of the Extensor Carpi Radialis Brevis (ECRB) tendon. Green coloured: Gracilis muscle.

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