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Updated: May 7, 2026
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Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus
Published on: January 23, 2018
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A novel acetabular injury pattern: Posterior osteochondral impaction without cortical involvement
Mahmoud Fahmy1, Mostafa Ahmed Shawky1
1Orthopaedic surgery, Pelvis fracture and Arthroplasty Unit, Orthopaedic department, Kasr Alainy hospital, Cairo University, Cairo, Egypt.
Injury
|August 30, 2025
Summary
This study identifies a new acetabular fracture pattern: posterior dome osteochondral impaction without cortical involvement. Surgical repair using posterior wall osteotomy or cortical window techniques yields excellent outcomes.
Area of Science:
- Orthopedic surgery
- Traumatology
- Radiology
Background:
- Acetabular fractures are typically classified by cortical disruption.
- A rare pattern of pure osteochondral impaction without cortical involvement exists.
- This injury is difficult to detect and unclassified by current systems.
Purpose of the Study:
- To characterize isolated posterior dome osteochondral impaction.
- To evaluate surgical techniques for anatomical restoration.
- To assess clinical and radiological outcomes.
Main Methods:
- Retrospective review of eight patients with isolated posterior dome osteochondral impaction.
- Surgical management via posterior wall osteotomy or cortical window technique.
- Functional outcomes assessed by Modified Merle d'Aubigné and Postel score; radiological assessment by Matta criteria.
Main Results:
- All injuries resulted from high-energy trauma.
- Anatomical reduction was achieved in all cases.
- Excellent functional outcomes (mean Merle d'Aubigné score 16.4) and no secondary complications at mean 12-month follow-up.
Conclusions:
- Isolated posterior dome osteochondral impaction is a distinct acetabular injury.
- Surgical intervention leads to excellent mid-term outcomes.
- This injury should be included in future acetabular fracture classifications.
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