Use of anatomic landmarks for assessment of intraoperative restoration of offset in total hip arthroplasty
Gadekar, Girish Mahajan, Ravindra Zedan, Yasmine Askar, Mohamed
Gadekar, Girish
Mahajan, Ravindra
Zedan, Yasmine
Askar, Mohamed
Abstract
Total hip arthroplasty is one of the most common and successful life-enhancing operations. Restoration of hip biomechanics is key for functional optimization. One of the factors contributing to the biomechanics of the hip is offset. The offset is defined as the distance of a line, which is perpendicular to the femoral axis and passes through the hip center of rotation, between the teardrop and that axis.1 Inappropriate restoration of the offset can lead to abductor dysfunction, loosening, increased wear rates, instability, and increased risk of dislocation.2,3
Determination of the offset preoperatively is feasible by templating, which helps choose the stem and the offset (standard vs. high offset) as well as the liner (standard vs. lateralized or eccentric). On the other hand, intraoperative determination and offset restoration can be challenging. A common technique for intraoperative assessment and restoration of the hip offset is the “pin technique.”4 In this study, the authors describe their technique for intraoperative restoration of hip offset in total hip arthroplasty.
MIDER Authors
Date
2025-09
Type
Article
Subject
Arthroplasty, replacement, hip, Biomechanical phenomena, Orthopaedics
Collections
Citation
Gadekar G, Mahajan R, Zedan Y, Askar M. Use of anatomic landmarks for assessment of intraoperative restoration of offset in total hip arthroplasty. Tech Orthop. 2025 Sep;40(3). doi:10.1097/BTO.0000000000000708.
Journal / Source Title
Techniques in Orthopaedics
DOI
10.1097/BTO.0000000000000708
PMID
Publisher
Lippincott, Williams & Wilkins