Is the use of biodegradable devices in the operative treatment of avulsion fractures of fingers, the so-called mallet finger advantageous? A feasibility study with meniscus arrows

R Nelis, D B Wouters, R Nelis, D B Wouters

Abstract

Purpose: Treatment of Mallet fingers or fractures remains a controversial topic. No evident preference can be distilled from the reports of the clinical results obtained by conservative treatment with splints and internal fixation. If operative treatment is indicated, several techniques can be used. However, each technique has disadvantages like the risk of comminution of the fragment, the risk of infection and necrosis, a demanding operative technique and-or the necessity of removing the metallic devices. This can be avoided by the use of biodegradable devices. The purpose of this feasibility study was to evaluate the outcome of internal fixation of a Mallet fracture with a biodegradable device, the Meniscus Arrow((R)).

Methods: We treated nine consecutive patients with a Mallet fracture by fixation of the fragment with a biodegradable Meniscus Arrow((R)), at this moment the smallest device available, with an average operation time of 14 minutes.

Results: Postoperatively, no complications were found. All patients were satisfied by the results after surgery, with a restored range of motion in the distal interphalangeal joint as previously and good alignment with full consolidation of all fractures at radiological evaluation.

Conclusions: The operative treatment of bony mallet fingers with the Meniscus Arrow((R)) is a fast procedure without complications in our prospective series of nine patients and without the need of a second operation to remove the implant.

Keywords: Mallet fracture; biodegradable; internal fixation.; meniscus arrow®.

Figures

Fig. (1)
Fig. (1)
Position of the shaft.
Fig. (2)
Fig. (2)
Position of the hand drill in de distal phalanx.
Fig. (3)
Fig. (3)
Gently hammering the Meniscus Arrow® in place.
Fig. (4)
Fig. (4)
X-ray, 4 weeks postoperatively.

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