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Published on: April 11, 2012
Injury to the growth plate after Pemberton osteotomy
A I Leet1, W G Mackenzie, G Szoke
1Alfred I. duPont Hospital for Children, Wilmington, Delaware 19899, USA.
The Journal of Bone and Joint Surgery. American Volume
|March 12, 1999
Summary
The Pemberton osteotomy can cause bone bar formation in the acetabular triradiate cartilage. Histological analysis confirmed osseous bars in most piglets after this surgical procedure.
Area of Science:
- Orthopedic surgery
- Pediatric orthopedics
- Skeletal development
Background:
- The Pemberton osteotomy is a surgical procedure involving the acetabulum.
- Previous case reports suggest complete closure of the triradiate cartilage after this osteotomy.
Purpose of the Study:
- To investigate the occurrence of physeal osseous bars following Pemberton osteotomy in a preclinical model.
- To evaluate the extent of triradiate cartilage injury after Pemberton osteotomy.
Main Methods:
- Eight Pemberton osteotomies were performed on six piglets.
- Acetabula were analyzed using radiography (including Bucholz views), computed tomography, and histological examination.
- Histological analysis focused on identifying osseous bars and cartilage disruption.
Main Results:
- Plain pelvic radiographs were insufficient for detecting osseous bars.
- Bucholz radiographs revealed osseous bars in 3 out of 4 analyzed specimens.
- Histological examination confirmed osseous bars in 5 iliopubic and 4 ilioischial limbs.
- Two specimens showed cartilage disruption without bridging, and only two had completely normal histology.
Conclusions:
- Pemberton osteotomy can lead to the formation of osseous bars within the triradiate cartilage of the acetabulum.
- Histological analysis is crucial for accurate detection of these post-osteotomy changes.
- The findings highlight potential risks of physeal injury associated with this surgical technique.
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