Minimally invasive reduction system for the surgical treatment of pelvic ring injuries: a case report

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Abstract

High-energy pelvic fractures represent a considerable challenge in modern traumatology and orthopedics, associated with a high risk of massive blood loss, thromboembolism, neurological deficits, and prolonged lоss of function. Unstable, comminuted fractures pose a particular difficulty, requiring not only early stabilization but also precise anatomical reductiоn of all elements of the pelvic ring.

Achieving proper fragment alignment, especially in cases of vertical and rotational displacement, remains a complex task. Open surgical approaches are associated with significant blood loss, risk of damage to neurovascular structures, and infectious complications, highlighting the need for the development of minimally invasive techniques.

This article describes the clinical experience of intraoperative application of a pelvic reduction frame for anatomical reduction in a comminuted pelvic fracture, as well as an assessment of rehabilitation outcomes, long-term functional results, and patient quality of life.

We present a clinical case оf a 39-year-old patient who sustained multiple pelvic fractures due to a fall from height. The article demonstrates the use оf an intraoperative pelvic reduction frame (hereinafter referred to as the “pelvic frame”) during closed reduction and osteosynthesis of the pelvic ring, which facilitated early patient verticalization and led to good functional outcomes (Majeed score 88, Oxford Hip Score 52).

This clinical case confirms the effectiveness of using a pelvic frame in the treatment of complex, vertically unstable pelvic fractures. The methоd provided accurate closed reduction and stable fixation without the need for extensive surgical approaches. This, in turn, enabled early mobilization and a favorable long-term functional result.

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About the authors

Karen A. Egiazaryan

The Russian National Research Medical University named after N.I. Pirogov

Email: egkar@mail.ru
ORCID iD: 0000-0002-6680-9334
SPIN-code: 5488-5307

MD, Dr. Sci. (Medicine), Professor

Russian Federation, Moscow

Dmitry S. Ershov

The Russian National Research Medical University named after N.I. Pirogov

Email: ershov0808@gmail.com
ORCID iD: 0000-0001-7005-2752
SPIN-code: 9839-1206

MD, Cand. Sci. (Medicine), Associate Professor

Russian Federation, Moscow

Artyom M. Lysko

The Russian National Research Medical University named after N.I. Pirogov; City Clinical Hospital No. 1 named after N.I. Pirogov

Email: artlysko@gmail.com
ORCID iD: 0009-0006-0925-2169

MD, Cand. Sci. (Medicine)

Russian Federation, Moscow; Moscow

Nikita D. Yudaev

The Russian National Research Medical University named after N.I. Pirogov; City Clinical Hospital No. 1 named after N.I. Pirogov

Email: n.iudaev@yandex.ru
ORCID iD: 0000-0002-7245-0153

MD

Russian Federation, Moscow; Moscow

Mikhail R. Piskunov

The Russian National Research Medical University named after N.I. Pirogov

Author for correspondence.
Email: piskunovmr@yandex.ru
ORCID iD: 0009-0003-3392-6416

MD

Russian Federation, Moscow

Yuliya L. Chupsheva

The Russian National Research Medical University named after N.I. Pirogov

Email: fullsun4@yandex.ru
ORCID iD: 0009-0008-6557-1281

MD

Russian Federation, Moscow

References

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  2. Egiazaryan KA, Starchik DA, Gordienko DI, Lysko AM. Modern condition of problem of treatment of patients with ongoing intrapelvic bleeding after unstable pelvic ring injuries. Polytrauma. 2019;(1):75–81. EDN: VCTPDJ
  3. Chen J, Zhang Z, Weng Y, et al. Pelvic unlocking closed reduction device for treatment of severe traumas combined with pelvic fractures: a retrospective case series of 13 patients. BMC Surg. 2025;25(1):456. doi: 10.1186/s12893-025-03199-8 EDN: XZPZON
  4. Shen L, Xue X, Ping Y, et al. Evolution of the reduction technique for unstable pelvic ring fractures: a narrative review. Eur J Med Res. 2025;30:2570. doi: 10.1186/s40001-025-02570-y EDN: RXBZBN
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  9. Luo Y, Chen H, He L, Yi C. Displaced posterior pelvic ring fractures treated with an unlocking closed reduction technique: Prognostic factors associated with closed reduction failure, reduction quality, and fixation failure. Injury. 2023;54 (Suppl. 2):S21–S27. doi: 10.1016/j.injury.2022.01.001 EDN: VBMKQV
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  12. Donchenko SV, Egiazaryan KA, Prokhorov AA. Application of 3D printing technology in minimally invasive pelvic surgery. Traumatology and Orthopedics of Russia. 2025;31(2):45–56. doi: 10.17816/2311-2905-17638 EDN: XNCMCJ
  13. Wu Z, Dai Y, Zeng Y. Intelligent robot-assisted fracture reduction system for the treatment of unstable pelvic fractures. J Orthop Surg Res. 2024;19(1):271. doi: 10.1186/s13018-024-04761-5 EDN: XAIKNN
  14. Khabriev RU, Cherkasov SN, Egiazarian KA, Attaieva LJ. The actual state of problem of traumatism. Problems of Social Hygiene, Public Health and History of Medicine. 2017;25(1):4–7. doi: 10.18821/0869-866X-2017-25-1-4-7 EDN: YHMRAJ

Supplementary files

Supplementary Files
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1. JATS XML
2. Fig. 1. Condition after installation of the external fixation device: upward displacement of the left pelvic hemiring, closed comminuted fracture of the lateral mass of the sacrum on the left, fracture of the pubic and ischium on the left, fractures of the transverse processes of the L3–L4 vertebrae. Computed tomography.

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3. Fig. 2. Fixation of Schanz screws inserted supraacetobularly to the pelvic frame: a — side view; b — head view; c — intraoperative radiographic image.

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4. Fig. 3. System for providing traction of the left lower limb along its length.

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5. Fig. 4. Reposition stages: a — traction using a large distractor; b — traction on the left lower limb using a cable; c — intraoperative X-ray image of the fracture site before traction; d — intraoperative X-ray image of the fracture site after traction.

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6. Fig. 5. Osteosynthesis of the pubic bone with a screw and the pubic symphysis with a plate: a - Pfannenstiel approach, top view; b - intraoperative X-ray image.

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7. Fig. 6. A screw was inserted into S1 on the left (intraoperative X-ray image).

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8. Fig. 7. X-ray control the day after surgery.

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9. Fig. 8. Range of motion control. Squatting position with full flexion of the left hip joint.

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10. Fig. 9. X-ray examination of the position of the fragments and metal fixators 18 months after surgery. No displacement of the installed metal fixators was detected, and no consolidation of the inferior pubic ramus was noted.

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11. Fig. 10. Patient T.: chronology of key events.

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