Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

When Is a Two-Stage Surgical Procedure Indicated in the Treatment of Pseudotumors of the Hip? A Retrospective Study of 21 Cases and a Review of the Literature

Mariachiara Cerchiaro
,
Giulia Trovarelli
,
Andrea Angelini
ORCID logo ,
Elisa Pala
,
Antonio Berizzi
ORCID logo ,
Carlo Biz
ORCID logo ,
Pietro Ruggieri
* ORCID logo
Version 1 : Received: 16 January 2024 / Approved: 17 January 2024 / Online: 17 January 2024 (08:29:26 CET)

A peer-reviewed article of this Preprint also exists.

Cerchiaro, M.; Trovarelli, G.; Angelini, A.; Pala, E.; Berizzi, A.; Biz, C.; Ruggieri, P. When Is a Two-Stage Surgical Procedure Indicated in the Treatment of Pseudotumors of the Hip? A Retrospective Study of 21 Cases and a Review of the Literature. J. Clin. Med. 2024, 13, 815. Cerchiaro, M.; Trovarelli, G.; Angelini, A.; Pala, E.; Berizzi, A.; Biz, C.; Ruggieri, P. When Is a Two-Stage Surgical Procedure Indicated in the Treatment of Pseudotumors of the Hip? A Retrospective Study of 21 Cases and a Review of the Literature. J. Clin. Med. 2024, 13, 815.

Abstract

(1) Background: Pseudotumor of the hip is a sterile, non-neoplastic soft tissue mass associated with total hip arthroplasties. Pseudotumors may mimic soft tissue tumors, or infections, so the differential diagnosis is crucial and biopsy is recommended. The purpose of this study was to compare complications and functional results between one-stage and two-stage procedures. (2) Methods: We retrospectively analyzed 21 patients surgically treated at our Institution with “pseudotumor” associated with hip prosthesis (8 male,13 female; mean age 69 years). One-stage revision was performed in 10 cases, two-stage in 10, excision only in one case. Complications were classified as major and minor and functional results assessed using the Harris Hip Score (HHS). (3) Results: Five patients (24%) reported major complications. Survival rate to all com-plications was 75%. Overall survival was 95% at five years. Mean HHS went from 35 pre-operative to 75 post-operative, highlighting improved functional results in all cases. We rec-orded no differences in complications and functional outcome between one and two-stage proce-dures. (4) Conclusions: In our experience, two-stage surgical approach is preferable in cases with major bone defects and larger pseudotumor size. The use of custom-made 3D-printed prostheses is increasing and is a further reason to prefer two-stage revision.

Keywords

custom-made 3D-printed prostheses; hip; pseudotumors; revision surgery; total hip arthroplasy

Subject

Medicine and Pharmacology, Orthopedics and Sports Medicine

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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