Clinical Orthopaedics and Related Research®

, Volume 471, Issue 7, pp 2151–2155 | Cite as

Increased Acetabular Depth May Influence Physeal Stability in Slipped Capital Femoral Epiphysis

  • David A. Podeszwa
  • David Gurd
  • Anthony Riccio
  • Adriana De La Rocha
  • Daniel J. Sucato
Symposium: Slipped Capital Femoral Epiphysis: Update and Emerging Concepts

Abstract

Background

Multiple mechanical factors affecting the hip have been associated with the development of slipped capital femoral epiphysis (SCFE). Whether acetabular depth plays a role in the development of a SCFE has not been elucidated.

Questions/purposes

(1) What is the prevalence of a deep acetabulum in SCFE? (2) Is the presence of a deep acetabulum associated with physeal instability? (3) Is the presence of a deep acetabulum associated with the occurrence of a contralateral SCFE?

Methods

We retrospectively reviewed 232 patients (156 males) who presented with a unilateral SCFE. Fifty (22%) subsequently developed a contralateral SCFE. The involved and uninvolved sides were evaluated for the presence of a deep acetabulum (DA). Preoperative radiographic parameters, slip stability, development of a contralateral SCFE, and demographic factors were then compared between patients with and without DA.

Results

DA was present in 120 hips (52%) with a SCFE. DA was more common in females (55 of 76 [72%]) than males (65 of 156 [42%]). Patients with DA presented with a higher lateral center-edge angle (33° versus 31°), slip angle (52° versus 43°), and with a lower body mass index (28.1 versus 30.0 kg/m2). Increased acetabular depth was more common in patients with an unstable SCFE (29 of 41 [71%]) than those with a stable SCFE (91 of 191 [48%]). The presence of DA either on the affected side or the contralateral side did not predict a contralateral SCFE.

Conclusions

Despite not predicting a contralateral SCFE, DA may influence physeal stability if a SCFE does develop. Therefore, the contralateral hip with DA should be closely monitored.

Level of Evidence

Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.

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Copyright information

© The Association of Bone and Joint Surgeons® 2013

Authors and Affiliations

  • David A. Podeszwa
    • 1
  • David Gurd
    • 2
  • Anthony Riccio
    • 1
  • Adriana De La Rocha
    • 1
  • Daniel J. Sucato
    • 1
  1. 1.Department of Orthopaedic SurgeryTexas Scottish Rite Hospital for ChildrenDallasUSA
  2. 2.Cleveland Clinic FoundationClevelandUSA

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