# An Unconventional Solution for Persistent Lateral Hip Prosthetic Friction Syndrome (LHPFS) after Revision Total Hip Arthroplasty

## TL;DR

This paper presents a novel surgical approach to reduce pain in a patient with persistent hip prosthetic friction syndrome after multiple hip revision surgeries.

## Contribution

The paper introduces the term 'lateral hip prosthetic friction syndrome' (LHPFS) and proposes a new surgical technique for its treatment.

## Key findings

- A cemented neotrochanter with a polyester patch and Z-plasty improved the patient's pain and Harris Hip Score.
- The patient experienced a 50% reduction in subjective pain and a 30-point increase in the Harris Hip Score after surgery.

## Abstract

We report on a 77-year-old male patient, who presented with excessive bone loss at the area of the greater trochanter after several hip revision surgeries resulting in a persistent friction syndrome caused directly by the rough surface and sharp edges of the prosthetic shoulder of a well-fixed Wagner-type revision stem. Surgery was performed by creating a cemented neotrochanter with an attached polyester patch around the proximal lateral shaft and performing a Z-plasty of the iliotibial tract. Twelve months postoperatively, the patient reported a reduction in subjective pain of 50% and improvement of the Harris Hip Score from 45 to 75 points. Without a definition in the current literature, the authors propose the term “lateral hip prosthetic friction syndrome” (LHPFS) to describe this medical condition.