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01.11.2013 | short report | Ausgabe 21-22/2013

Wiener klinische Wochenschrift 21-22/2013

Impaired joint motion and contractures in callus distraction and segment transport: a retrospective data analysis

Zeitschrift:
Wiener klinische Wochenschrift > Ausgabe 21-22/2013
Autoren:
Lukas Zak, MD Gerald E. Wozasek

Summary

Purpose

The temporary loss of motion of adjacent joints is a common complication after distraction osteogenesis of the lower limb. The aim of this study was to investigate the incidence of tendon contracture and impaired joint motion of the knee and/or ankle joint during and after callus distraction with a ring fixator.

Material and methods

Twenty patients (2 female, 18 male, average age: 36 years) were surgically treated for callus distraction and segment transport with an external ring fixator after traumatic bone loss in 21 lower limbs. The impaired joint motion of the adjacent joints during and after treatment was evaluated.

Results

During treatment, we observed the free range of motion (ROM) of the ankle joint in 4 cases (19 %), restricted motion in 11 cases (52 %), and complete loss of motion in 6 cases (33 %). After treatment,free ROM was observed in 12 cases (57 %), impaired motion in 3 cases (14 %), and fixed joint position in 6 cases (29 %, 2 arthrodesis). This represents an improvement of motion in eight cases (38 %) and an impairment in two cases (10 %). In 11 cases, the ROM remained unchanged. During treatment, six restrictions in extension (24 %) and five (33 %) restrictions in flexion occurred in the knee joint, ultimately resulting in one loss of extension and three losses of flexion after frame removal.

Conclusions

The impairment of joint motion during bone lengthening with an external ring fixator in the lower extremity occurs in most cases at the ankle joint. Various treatment options are available to address tendon shortening, but accompanying physiotherapy may prevent or moderate its onset.

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