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ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2026

Balloon acetabuloplasty for cartilage impaction reduction in traumatic acetabular fractures: a case series and technical note.

Lorenzo Serfaty, Guillaume Riouallon, Elias Melhem, Mourad Zaraa, Peter Upex, Pierre-Emmanuel Moreau

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Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Lorenzo SerfatyOrthopedic and Traumatology Surgery Department, Hôpital Paris Saint-Joseph, Paris, France. lorenzo.serfaty@aphp.fr.
Guillaume RiouallonOrthopedic and Traumatology Surgery Department, Hôpital Paris Saint-Joseph, Paris, France.
Elias MelhemOrthopedic and Traumatology Surgery Department, Hôpital Paris Saint-Joseph, Paris, France.
Mourad ZaraaOrthopedic and Traumatology Surgery Department, Hôpital Paris Saint-Joseph, Paris, France.
Peter UpexOrthopedic and Traumatology Surgery Department, Hôpital Paris Saint-Joseph, Paris, France.
Pierre-Emmanuel MoreauOrthopedic and Traumatology Surgery Department, Hôpital Paris Saint-Joseph, Paris, France. pemoreau@ghpsj.fr.

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6 · The paper itself

Abstract

purposeAcetabular fractures with cartilage impaction are associated with a high risk of post-traumatic osteoarthritis, frequently requiring total hip arthroplasty (THA). Conventional open reduction and internal fixation (ORIF) often fail to restore joint surface congruity. This case series evaluates the radiological and clinical outcomes of a novel minimally invasive technique using balloon acetabuloplasty to reduce dome impaction in traumatic acetabular fractures.

methodsThis retrospective case series included patients with acetabular fractures involving cartilage impaction. Balloon acetabuloplasty was indicated when the impaction was inaccessible through standard approaches or in isolated impaction cases suitable for percutaneous treatment. Step and gap were measured on pre- and postoperative CT scans (St. Joseph Acetabular Score). Secondary outcomes included conversion to THA and functional evaluation using the Simple Hip Value (SHV) at latest follow-up.

resultsEight patients (mean age, 56 ± 8 years; 1 female, 7 males) were included. Mean follow-up was 22 ± 9 months (range, 9-31 months). Fracture types comprised three anterior column and posterior hemitransverse, one T-shaped fracture, one both-column, one transverse, one anterior wall and one posterior wall fracture. Four patients were treated using an open Stoppa approach and four with a percutaneous approach. The mean step was reduced from 8.6 to 0.7 mm (p = 0.014), and the gap from 3.5 to 1.0 mm (p = 0.021). Two patients (25%) required THA during follow-up. In the remaining six patients, mean Simple Hip Value (SHV) at latest follow-up was 92 ± 8%. No complications were reported.

conclusionBalloon acetabuloplasty is a promising minimally invasive technique to address dome impaction in acetabular fractures. It may improve articular surface restoration and reduce the risk of progression to THA. Further studies are needed.

Indexed as

AcetabuloplastyAcetabulumCartilage, ArticularFractures, BoneAdultAgedArthroplasty, Replacement, HipFemaleFracture Fixation, InternalHumansMaleMiddle AgedRetrospective StudiesTomography, X-Ray ComputedTreatment OutcomeAcetabulum fractureBalloon acetabuloplastyCartilage impactionMinimally invasivePelvic fractureTrauma

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.