Locking Attachment Plate for the Surgical Treatment of Periprosthetic and Periimplant Fractures: Long-Term Follow-Up

Document Type : RESEARCH PAPER


Department of Orthopedic Surgery, La Paz University Hospital, Madrid, Spain



Objectives: The surgical management of periprosthetic fractures (PPF) and periimplant fractures (PIF) 
can be challenging. The locking attachment plate (LAP) was proposed in recent years for the 
osteosynthesis of such fractures. The aim of this study was to assess the experience of a third -level 
hospital with LAP for the treatment of PPF and PIF, and analyse the clinical outcomes.
Methods: Data were prospectively collected and analysed from all patients whose PPF/PIF was treated surgically 
with LAP in a third-level hospital from June 2018 to June 2022. All fractures were postoperative low-energy femur 
fractures. The minimum follow-up period was six months.
Results: Thirty-eight patients (31 women) met the eligibility criteria. The mean age was 86.3 years. The median 
time until surgery was 4 days. A mean of 3.61 screws were used for each LAP. The mean femur plate length was 
14 holes, and the mean working length 7.1 holes. The median hospital stay was nine days. The mean follow-up was 
19.56 months. At one month, 12 patients tolerated partial weight-bearing. Five patients walked independently 
indoors. One patient had died and seven patients were readmitted. At six months, six more patients had died. Fifteen 
patients tolerated full weight-bearing (FWB). Nine patients walked independently indoors, six outdoors. Twenty-five 
patients reached fracture consolidation without malalignment. Nine patients were readmitted. At 12 months, another 
patient had died. Seventeen patients tolerated FWB. Eleven patients walked independently indoors, six outdoors. 
Twenty-five patients achieved fracture consolidation without malalignment. Five patients were readmitted. Fourteen 
patients crossed the two-year postoperative threshold. All achieved fracture consolidation. Two patients passed the 
4-year postoperative milestone.
Conclusion: The clinical results of patients whose PPF or PIF was treated with the LAP are promising. This fixation 
method is a viable option to be considered when planning surgery for such fractures.
 Level of evidence: III


Main Subjects