Acetabular Rim Disorders/Pincer-type Femoroacetabular Impingement and Hip Arthroscopy

Sports Med Arthrosc Rev. 2021 Mar 1;29(1):35-43. doi: 10.1097/JSA.0000000000000296.


Femoroacetabular impingement (FAI) can lead to acetabular impaction, chondral injury, and labral pathology secondary to deformities of the proximal femur (CAM-type FAI), acetabulum (pincer-type FAI), or with combined FAI. While the majority of cases are of the combined type, this paper focuses on acetabular overcoverage/pincer-type deformities. Various pincer subtypes include focal anterior overcoverage, global retroversion, global overcoverage/profunda, protrusio, subspine impingement, and os acetabuli/rim fracture variants. A thorough history and physical examination, plain radiographs, magnetic resonance imaging, 3-dimensional computerized tomography, and diagnostic injections can lead to an accurate assessment of pincer-type variants. Appropriately indicated arthroscopic management techniques and pearls for the various pincer subtypes can lead to improved patient-related outcome measures and a high rate of return to athletic activity for the majority of these patients.

Publication types

  • Review

MeSH terms

  • Acetabulum / diagnostic imaging
  • Acetabulum / pathology*
  • Acetabulum / physiopathology
  • Acetabulum / surgery*
  • Arthroscopy* / methods
  • Arthroscopy* / rehabilitation
  • Femoracetabular Impingement / diagnostic imaging
  • Femoracetabular Impingement / pathology*
  • Femoracetabular Impingement / physiopathology
  • Femoracetabular Impingement / surgery*
  • Fluoroscopy
  • Humans
  • Physical Therapy Modalities
  • Radiography
  • Range of Motion, Articular
  • Tomography, X-Ray Computed
  • Treatment Outcome