GIF89aì>³™

INTRODUCTION

PELVIC BONE ANATOMY

CLASSIFICATION OF PELVIC RESECTIONS

SURGICAL OPTIONS FOR THE PERIACETABULAR RESECTION

Hemipelvectomy

Arthrodesis

Megaprosthesis

THE SADDLE PROSTHESIS

Historical Perspectives: The Mark I

Mark II Prosthesis

Periacetabular Reconstruction Prosthesis (PAR)

INDICATIONS

SURGICAL TECHNIQUES AND CONSIDERATIONS

The Notch Osteotomy

Soft Tissue Tension

NORMAL POSTOPERATIVE IMAGING

COMPLICATIONS AND IMAGING

Mark I

Mark II

PAR Page 1

PAR Page 2

RECOVERY AND FUNCTIONALITY

CONCLUSION

REFERENCES

POSTOPERATIVE IMAGING CONSIDERATIONS

Benevenia et al.⁴ stated that intra and post operative judet and obturator views were the most consistent in showing the placement of the prosthesis.

Cottias et al.¹⁶ found that obturator oblique, alar views as well as AP and sagittal were most helpful. Furthermore, he found that upward migration was best evaluated on successive films (did not mention which view) by measuring distance between base of intermediate component and straight line tangential to inferior border of SI joints.

Mark II Prosthesis

Above left: Normal AP. Above right: Normal Oblique. Note how saddle cradles ilium.¹⁵

Above: Normal Axial CT. Ilium situated between saddle prongs. Incidentally noted right SI joint subluxation.¹⁵

PAR Prosthesis

Normal AP images

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