Clinical and Functional Outcomes of Peri-Implant Fractures Associated with Short Proximal Femur Nails: Prevention Strategies and Key Insights

Overview

Journal J Clin Med

Date 2025 Jan 11

PMID 39797343

Authors

Ignacio Aguado-Maestro

Sergio Valle-Lopez

Clarisa Simon-Perez

Emilio-Javier Frutos-Reoyo

Ignacio Garcia-Cepeda

Ines de Blas-Sanz

Ana-Elena Sanz-Penas

Jesus Diez-Rodriguez

Juan-Pedro Mencia-Gonzalez

Carlos Sanz-Posadas

Affiliations

Soon will be listed here.

Abstract

: Hip fractures are prevalent among the elderly and impose a significant burden on healthcare systems due to the associated high morbidity and costs. The increasing use of intramedullary nails for hip fracture fixation has inadvertently introduced risks; these implants can alter bone elasticity and create stress concentrations, leading to peri-implant fractures. The aim of this study is to investigate the outcomes of peri-implant hip fractures, evaluate the potential causes of such fractures, determine the type of treatment provided, assess the outcomes of said treatments, and establish possible improvement strategies. : We conducted a retrospective observational study on 33 patients with peri-implant hip fractures (PIFs) who underwent surgical management at Río Hortega University Hospital from 2010 to 2022. The collected data included demographics, initial fracture characteristics, the peri-implant fracture classification, implant details, surgical outcomes, functional scores, and complications. Functional capacity was evaluated using the Parker Mobility Score (PMS). : The cohort (91% female, mean age 87.6 years) included 34 peri-implant fractures. The mean time from the initial fracture to the PIF was 47.2 months (nine patients developed PIFs within 2 months). Most fractures (76%) were managed with implant removal and the insertion of a long intramedullary nail, with cement augmentation in 31% of cases. The mean surgical time was 102 min, and the average hospital stay was 9.6 days. Postoperative complications occurred in 27%, with a perioperative mortality rate of 9%. Functional capacity showed a significant decline, with an average PMS loss of 4.16 points. Mortality at one year post-PIF was 36%, rising to 83% at five years. Radiographic consolidation was observed in 72% of cases at an average of 6.04 months, though 24% of patients died before consolidation. Statistically significant correlations were found for PMS pre-index fracture (PMS1: r = 0.354, < 0.05), pre-PIF (PMS2: r = 0.647, < 0.001), and post-PIF (PMS3: r = 0.604, < 0.001). : Peri-implant hip fractures present complex challenges due to their surgical difficulty and impact on patient mobility and survival. Successful management requires individualized treatment based on fracture type, implant positioning, and patient factors. These findings underscore the need for preventive measures, particularly in implant choice and techniques like overlapping and interlocking constructs, to minimize the secondary fracture risk.

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