DOS 2016

DOS Kongressen 2016 ·

Effectiveness And Pittfalls Of The bilateral 8-Plate

Technique For Treatment Of Moderate Leg-Length

Discrepancy

Roshan Latifi, Johanna Hall, Silas Gylvin, Christian Wong

Department of Othopedics, University hospital of Hvidovre; Department

of Radiology, University hospital of Hvidovre; Department of Othopedics,

University hospital of Hvidovre; Department of Othopedics, University hospital

of Hvidovre

Background:

Bilateral 8-plates (B8P) has been introduced off-label for per-

forming temporary total epiphysiodesis (ttE) for correction of moderate leg

length discrepancy (LLD). Concerns has been raised of development of second-

ary distal femoral dysplasia

Purpose / Aim of Study:

To study the efficacy and potential development of

secondary femoral dysplasia after B8P for ttE for correcting moderate LLD

Materials and Methods:

Fourteen patients were identified retrospectively and

8 were included. These were all treated with B8P. Mean follow-up time was

4.8 years and average initial LLD was 3.2 cm. Information of clinical assess-

ments were retrieved. Long legs radiographs were obtained and measurements

of bilateral leg length, knee alignment, femur and tibia length, femoral central,

medial and lateral epiphyseal height for both legs were done by 3 doctors in-

dependently. Preoperative radiographs were also retrieved. Paired t-tests were

performed in SPSS

Findings / Results:

Knee alignment and leg and femoral length were not sig-

nificant different between the operated leg and non-operated leg, but not tibial

length. The three femoral epiphysial heights were significant larger from the

preoperative height, but not compared to the opposite leg, indicating growth.

The ratios between the central part divided with the lateral, medial side, respec-

tively, had no significant difference when compared to the ratios of the non-

operated leg at follow-up, and the preoperative operated side. This indicated

no femoral dysplasia. Clinical assessments and the other retrieved data were in

agreement with the above measurements

Conclusions:

ttE with B8P for moderate LLD seems to be an effective treat-

ment without secondary femoral dysplasia and with inconsiderable number and

severity in complications when evaluated clinically and radiologically. This indi-

cated no femoral dysplasia

No conflicts of interest reported

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