Objective:

To evaluate the restoration of hip biomechanical parameters—specifically leg length discrepancy (LLD), femoral offset (FO), acetabular offset (AO), and global offset (GO)—following implantation of a specific type of articulating hip spacer during the first stage of a two-stage revision for periprosthetic joint infection (PJI).

Approach:

Key Findings:

• The study aimed to assess the restoration of key biomechanical parameters after spacer implantation.
• Variations in offset parameters were correlated with the rate of interstage mechanical complications.

Interpretation:

Limitations:

• The study is retrospective and conducted at a single center, which may limit generalizability.
• Exclusion of patients with different types of spacers or those managed with an interim Girdlestone procedure may affect the findings.

Conclusion:

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