Hip Pelvis.  2018 Mar;30(1):60-64. 10.5371/hp.2018.30.1.60.

Arthroscopic Management of Intraarticular Screw Perforation after Surgical Treatment of an Acetabular Posterior Wall Fracture: A Case Report

Affiliations
  • 1Department of Orthopaedic Surgery, Pusan National University Hospital, Busan, Korea. namhoonmoon@gmail.com

Abstract

Although surgical techniques for treating acetabular fracture are evolving, the use of periacetabular screws is common, and their placement in acetabular surgery is still technically demanding. For instance, intraarticular screw perforation is a serious complication that may occur during surgical treatment of an acetabular fracture. Here, we describe the case of a 50-year-old female who experienced an intraarticular screw perforation after surgical treatment of a posterior acetabular wall fracture. Removal of the perforated screw was performed arthroscopically based on its ability to offer minimally invasive access to the hip joint. One year after removal of the screw, no radiological signs of osteoarthritic changes were observed. The patient regained normal ambulation without limitations to range of motion or hip pain. To our knowledge, this is the first report on the use of arthroscopy to treat intraarticular screw perforation after surgical treatment of an acetabular fracture.

Keyword

Hip arthroscopy; Screw perforation; Acetabular fracture

MeSH Terms

Acetabulum*
Arthroscopy
Female
Hip
Hip Joint
Humans
Middle Aged
Range of Motion, Articular
Walking

Figure

  • Fig. 1 (A, B) A 50-year-old woman with a left posterior acetabular wall fracture and posterior hip dislocation (black and white arrows). (C, D) Coronal and sagittal images of a computed tomography scan reveal a small osteochondral fragment (black arrow).

  • Fig. 2 (A) An embedded 2.0-mm cortical screw was used to fix the osteochondral fragment. (B) Postoperative radiographs show good congruency of the hip joint and well-fixed posterior wall fracture but reveal a possible intraarticular screw perforation (black arrow). (C, D) Coronal and sagittal images of a computed tomography scan confirm a screw perforation.

  • Fig. 3 (A) Arthroscopy showing intraarticular perforation of the cortical screw heading from 2 o'clock to 10 o'clock. (B) Articular cartilage surrounding the screw was removed using an extra small arthroscopic gauge and ring curette for whole exposure of the screw. (C) Arthroscopy showing basket forceps removing the lag screw. (D) Osteochondral defect and linear cartilage defect after screw removal.

  • Fig. 4 No radiologic signs of osteoarthritic changes are observed, although a one year follow-up computed tomography revealed a small defect in the posterosuperior portion of the acetabulum.


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