Related Experiment Video
Updated: Jan 24, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
Periprosthetic Fracture of Greater Trochanter in Total Hip Replacement Stemming from Pin Site Placement in
Ava Brozovich1,2, David R Lionberger1
1Houston Methodist Hospital, Houston, TX 77030, USA.
Abstract:
Surgeons are looking to use computer computer-assisted surgery (CAS) in total hip arthroplasty (THA) in order to quantify leg length measurement, angular cup placement, and enhance stability to provide enhanced accuracy in implant placement. As a result, CAS in THA is gaining popularity. This technology employs the use of pins and provides the surgeon with real-time feedback on positioning intraoperatively. Previous total knee arthroplasty (TKA) literature has reported pin-associated complications such as infections, neuropraxia, and suture abscess. To our knowledge, there have been reports of tibial stress fracture after CAS TKA, but this is the first report of a pin causing fracture of the greater trochanter leading to dislocation in THA. Further studies may be warranted to optimize pin placement for trackers to prevent fractures of the greater trochanter.
Related Concept Videos
Euler's Formula for Pin-Ended Columns
To calculate the critical load, envision...
Fractures: Bone Repair
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
Continuous Renal Replacement Therapy
Total Voids in Concrete
Adult Stem Cells
Embryonic Stem Cells

