1
|
Meuser AH, Henyš P, Höch A, Gänsslen A, Hammer N. Evaluating the stability of external fixators following pelvic injury: A systematic review of biomechanical testing methods. J Mech Behav Biomed Mater 2024; 153:106488. [PMID: 38437754 DOI: 10.1016/j.jmbbm.2024.106488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 10/31/2023] [Accepted: 02/26/2024] [Indexed: 03/06/2024]
Abstract
INTRODUCTION This systematic review aims to identify previously used techniques in biomechanics to assess pelvic instability following pelvic injury, focusing on external fixation constructs. METHODS A systematic literature search was conducted to include biomechanical studies and to exclude clinical trials. RESULTS Of an initial 4666 studies found, 38 met the inclusion criteria. 84% of the included studies were retrieved from PubMed, Scopus, and Web of Science. The studies analysed 106 postmortem specimens, 154 synthetic bones, and 103 computational models. Most specimens were male (97% synthetic, 70% postmortem specimens). Both the type of injury and the classification system employed varied across studies. About 82% of the injuries assessed were of type C. Two different fixators were tested for FFPII and type A injury, five for type B injury, and fifteen for type C injury. Large variability was observed for external fixation constructs concerning device type and configuration, pin size, and geometry. Biomechanical studies deployed various methods to assess injury displacement, deformation, stiffness, and motion. Thereby, loading protocols differed and inconsistent definitions of failure were determined. Measurement techniques applied in biomechanical test setups included strain gauges, force transducers, and motion tracking techniques. DISCUSSION AND CONCLUSION An ideal fixation method should be safe, stable, non-obstructive, and have low complication rates. Although biomechanical testing should ensure that the load applied during testing is representative of a physiological load, a high degree of variability was found in the current literature in both the loading and measurement equipment. The lack of a standardised test design for fixation constructs in pelvic injuries across the studies challenges comparisons between them. When interpreting the results of biomechanical studies, it seems crucial to consider the limitations in cross-study comparability, with implications on their applicability to the clinical setting.
Collapse
Affiliation(s)
- Annika Hela Meuser
- Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Petr Henyš
- Institute of New Technologies and Applied Informatics, Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Liberec, Czech Republic
| | - Andreas Höch
- Department of Orthopedic and Trauma Surgery, University of Leipzig, Leipzig, Germany
| | - Axel Gänsslen
- Clinic for Trauma Surgery, Orthopaedics and Hand Surgery, Wolfsburg Hospital, Wolfsburg, Germany
| | - Niels Hammer
- Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria; Department of Orthopedic and Trauma Surgery, University of Leipzig, Leipzig, Germany; Division of Biomechatronics, Fraunhofer IWU, Dresden, Germany.
| |
Collapse
|
2
|
Flores JA, Rovesti GL, Rodriguez-Quiros J. A Bilateral Acetabular Physeal Fracture Treated with External Fixation in an Immature Cat. Animals (Basel) 2024; 14:379. [PMID: 38338023 PMCID: PMC10854531 DOI: 10.3390/ani14030379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/14/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
This study aimed to assess the outcome of a bilateral acetabular physeal fracture treated with external fixation in an immature cat, a surgical technique not usually employed in immature patients. The fixator took 40 days, and it was removed after radiographic bone healing was achieved. No significant complications related to the technique were identified, and the outcome was classified as good based on the functional assessment and pain scales employed. The use of external fixation for stabilising acetabular fractures in immature cats should be considered a viable technical option, especially for minimally invasive stabilisation.
Collapse
Affiliation(s)
- Jose Antonio Flores
- Hospital Veterinario IVC Evidensia Prïvet, Calle Duero 37, Villaviciosa de Odón, 28670 Madrid, Spain
| | - Gian Luca Rovesti
- Clinica Veterinaria M. E. Miller, Via della Costituzione 10, 42025 Cavriago, Italy
| | - Jesus Rodriguez-Quiros
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Avda. Puerta de Hierro s/n, 28040 Madrid, Spain
| |
Collapse
|
3
|
Zhao P, Li R, Liu L, Wang X, Chen X, Guan J, Wu M. Clinical study of modified INFIX combined with sacroiliac joint screws for pelvic instable injuries. BMC Surg 2023; 23:350. [PMID: 37974146 PMCID: PMC10655463 DOI: 10.1186/s12893-023-02205-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 09/23/2023] [Indexed: 11/19/2023] Open
Abstract
OBJECTIVE The INFIX technique is becoming one of the most commonly performed surgical procedures for anterior pelvic ring instability injuries. The purpose of this article is to compare the clinical outcomes of modified anterior subcutaneous internal fixation (M-INFIX) with conventional anterior subcutaneous internal fixation (C-INFIX) for anterior pelvic ring instability injuries. PATIENTS AND METHODS A retrospective analysis of 36 cases of unstable pelvic injuries treated operatively at our institution, 20 of which were treated with C-INFIX and 16 with M-INFIX. Data collected included age, gender, ISS score, fracture typing, operative time, operative bleeding, postoperative complications, fracture healing time, Matta score, Majeed score, and follow-up time. Statistical sub-folding of each variable between the two groups was performed. RESULTS There was no statistical difference between the C-INFIX and M-INFIX groups in terms of age, gender, ISS (Injury Severity Score), follow-up time, fracture typing, fracture healing time, and Majeed score (P > 0.05). the M-INFIX had a significantly lower incidence of postoperative complications than the C-INFIX group, especially in the incidence of Lateral femoral cutaneous nerve (LFCN) injury (P < 0.05). In contrast, the M-INFIX group had statistically higher operative time, intraoperative bleeding, and Matta score than the C-INFIX group (P < 0.05). CONCLUSION This study was based on a modified application of the surgical experience with C-INFIX and showed better clinical outcomes in terms of complication rates and quality of repositioning than the conventional surgical approach. These findings indicate that further analytical studies of this study would be valuable.
Collapse
Affiliation(s)
- Peishuai Zhao
- Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Renjie Li
- Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Leyu Liu
- Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Xiaopan Wang
- Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Xiaotian Chen
- Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Jianzhong Guan
- Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China.
| | - Min Wu
- Department of Orthopaedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China.
| |
Collapse
|
4
|
Flores JA, Rovesti GL, Gimenez-Ortiz L, Rodriguez-Quiros J. Retrospective Assessment of Thirty-Two Cases of Pelvic Fractures Stabilized by External Fixation in Dogs and Classification Proposal. Vet Sci 2023; 10:656. [PMID: 37999479 PMCID: PMC10675007 DOI: 10.3390/vetsci10110656] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/03/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023] Open
Abstract
The goals of this study were to evaluate the outcomes of bone healing, patient comfort during the treatment, functional results, and complications in pelvic fractures treated with external fixation, as well as to propose a classification system for the applied external frames. A total of thirty-two canine patients with pelvic fractures of different origins were treated. To provide a better reference for the frames used, an alphanumeric classification system was developed, detailing the frame structure and the number and location of the pins used. In this study, eighty-six fractures were treated in the 32 patients of this work, with an average fixation time of 9.88 ± 4.15 weeks. No major complications were detected in this case cohort, and the outcomes were rated at 9.46 based on a visual assessment scale for the patient's comfort during treatment. Outcomes graded as excellent and good were 96%. The use of external fixation for stabilization of pelvic fractures should be considered as a technical option, especially for minimally invasive stabilization of complex fractures, either as a primary or secondary stabilization.
Collapse
Affiliation(s)
- Jose Antonio Flores
- Hospital Veterinario IVC Evidensia Prïvet, Calle Duero 37, Villaviciosa de Odón, 28670 Madrid, Spain
| | - Gian Luca Rovesti
- Clinica Veterinaria M. E. Miller, Via della Costituzione 10, 42025 Cavriago, Italy;
| | - Lucia Gimenez-Ortiz
- Clínico Veterinario Val de Iglesias, Calle de la Corredera Alta 30, San Martín de Valdeiglesias, 28680 Madrid, Spain;
| | - Jesus Rodriguez-Quiros
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Avda. Puerta de Hierro s/n, 28040 Madrid, Spain;
| |
Collapse
|
5
|
Modified percutaneous iliosacral screw and anterior internal fixator technique for treating unstable pelvic fractures: a retrospective study. BMC Musculoskelet Disord 2022; 23:1068. [PMID: 36471331 PMCID: PMC9724284 DOI: 10.1186/s12891-022-06036-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The commonly used technique for treating unstable pelvic fractures with sacroiliac screws and anterior internal fixator (INFIX) is prone to complications, such as injury to the pelvic vasculature and nerves, life-threatening bleeding, lateral femoral cutaneous neuritis, and wound infection. This study investigated the clinical effects of using a modified percutaneous iliosacral screw and INFIX technique for treating unstable pelvic fractures. METHODS A retrospective analysis of minimally invasive internal fixation using modified incision of an anterior-ring INFIX application combined with modified percutaneous iliosacral screw placement was performed for 22 cases of unstable pelvic fractures from January 2017 to December 2018. Based on the Tile classification, there were 4 type B1, 7 type B2, 5 type B3 and 6 type C1 injuries. Preoperatively, the length and orientation of the internal fixation were computer-simulated and measured. On postoperative day 3, pelvic radiographs and three-dimensional computed tomograms were used to assess fracture reduction and fixation. All patients were regularly followed up at 4 weeks, 12 weeks, 6 months, 12 months, 24 months and annually thereafter. Fracture healing, complications, visual analogue scale (VAS) scores, the quality of fracture repositioning and Majeed score were assessed during follow-up. RESULTS All patients were followed up for a mean of 25.23 ± 1.48 months. All fractures healed without loss of reduction and no patient showed evidence of delayed union or nonunion. Two years postoperatively, the mean VAS score was 0.32 ± 0.09 and the mean Majeed score was 94.32 ± 1.86. CONCLUSION The modified percutaneous iliosacral screw technique increases the anterior tilt of the sacroiliac screw by shifting the entry point posteriorly to increase the safety of the screw placement. Downward modification of the INFIX incision reduces the risk of lateral femoral cutaneous nerve injury. This technique is safe, effective and well tolerated by patients.
Collapse
|
6
|
Chen H, Ding C, Liu Y, Kong Z, Chang S, Huang F, Li H, Guo Q, Yang Y, Zhong H, Yang S. A clinical and biomechanical comparison of INFIX plus single versus double sacroiliac screw fixation for unstable pelvic ring injury. J Orthop Surg Res 2022; 17:285. [PMID: 35597957 PMCID: PMC9124380 DOI: 10.1186/s13018-022-03133-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 04/12/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The aim of this study is to compare the clinical and biomechanical outcome of INFIX plus single with two sacroiliac screw fixation for unstable pelvic fractures of Type C. METHODS Sixteen cadavers were randomly subjected to INFIX plus single or double sacroiliac screw fixations and then mounted onto the ElectroForce loading machine under different vertical loads. To investigate the clinical outcomes of the two techniques, nineteen patients were retrospectively analyzed. The main outcome measures were postoperative radiographic reduction grading (using the Tornetta and Matta grading system), functional outcome (using the Majeed scoring system), and incidence of complications. RESULTS In the biomechanical study, INFIX plus double sacroiliac screw fixation showed better biomechanical stability than fixation with a single sacroiliac screw (p < 0.05). In our clinical case series, all 19 patients had bony union 6 months after the operation. INFIX plus double sacroiliac screw fixation also demonstrated a better functional outcome and a higher radiographic satisfactory rate than INFIX plus single sacroiliac screw fixation (79.25 ± 5.47; 91.33 ± 4.97; p < 0.05), (77.78% vs. 60%; p = 0.05). One patient in INFIX plus single-screw fixation group had screw loosening at 6-month follow-up postoperatively. One case in each group suffered heterotopic ossification and the lateral femoral cutaneous nerve paralysis, and one patient suffered from infection. CONCLUSION INFIX plus double sacroiliac screw fixation demonstrated more stability in cadaveric biomechanical analysis and better clinical outcomes than INFIX plus single sacroiliac screw fixation.
Collapse
Affiliation(s)
- Hongfen Chen
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Chao Ding
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Yongqiang Liu
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Zhen Kong
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Siling Chang
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Feng Huang
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Heng Li
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Qingxiang Guo
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Yuehua Yang
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 People’s Republic of China
| | - Hua Zhong
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| | - Shaozheng Yang
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No. 566 Congcheng Avenue, Conghua District, Guangzhou, 510900 People’s Republic of China
| |
Collapse
|
7
|
Liu L, Fan S, Zeng D, Chen Y, Song H, Zeng L, Jin D. Clinical application of anterior ring internal fixator system combined with sacroiliac screw fixation in Tile C pelvic fracture treatment. J Orthop Surg Res 2021; 16:715. [PMID: 34906168 PMCID: PMC8670052 DOI: 10.1186/s13018-021-02863-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 12/01/2021] [Indexed: 11/17/2022] Open
Abstract
Background How to perform minimally invasive surgery for Tile C pelvic fracture is a major problem in clinical practice. We performed minimally invasive surgery for Tile C pelvic fracture using anterior ring internal fixator systems combined with sacroiliac screw fixation.
Objective To investigate the advantages and efficacy of anterior ring internal fixator systems combined with sacroiliac screw fixation in the treatment of Tile C pelvic fracture. Methods From May 2017 to May 2020, 27 patients with Tile C pelvic fracture who underwent anterior ring internal fixator system combined with sacroiliac screw fixation (group A) and 21 patients with Tile C pelvic fracture who underwent plate-screw system combined with sacroiliac screw fixation (group B) were retrospectively analyzed. Results All 48 patients were followed up for more than 12 months, all fractures healed within 3–6 months. The operative time, intraoperative bleeding volume, blood transfusion volume, incision length, hospital stay, complication rate and Majeed score were 63.5 ± 10.7 min, 48.3 ± 27.9 ml, 0 ml, 4.5 ± 0.8 cm, 10.2 ± 2.7 d, 3.7% and 89.7 ± 4.6 points, respectively, in group A and 114.8 ± 19.1 min, 375 ± 315.8 ml, 266.7 ± 326.6 ml, 9.2 ± 3.9 cm, 20.9 ± 5.7 d, 23.8% and 88.7 ± 4.9 points, respectively, in group B. Combined excellent and good rates of the Matta evaluation and Majeed score were 100% in both groups. There were no significant differences in the Matta evaluation or Majeed score between the two groups (both P > 0.05), whereas the operative time, intraoperative bleeding volume, blood transfusion volume, incision length and hospital stay were significantly less in group A (all P < 0.05). Conclusion An anterior ring internal fixator system combined with sacroiliac screw fixation can effectively treat Tile C pelvic fracture, and has advantages, including minimal invasiveness, simple operation, short operative time, safe and reliable features, fewer complications, short hospital stay and a good curative effect.
Collapse
Affiliation(s)
- Lin Liu
- Orthopedic Trauma, University of Chinese Academy of Sciences Shenzhen Hospital, Shenzhen, Guangdong, People's Republic of China.
| | - Shicai Fan
- The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Donggui Zeng
- Orthopedic Trauma, University of Chinese Academy of Sciences Shenzhen Hospital, Shenzhen, Guangdong, People's Republic of China
| | - Yuhui Chen
- The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Hui Song
- Orthopedic Trauma, University of Chinese Academy of Sciences Shenzhen Hospital, Shenzhen, Guangdong, People's Republic of China
| | - Letian Zeng
- Orthopedic Trauma, University of Chinese Academy of Sciences Shenzhen Hospital, Shenzhen, Guangdong, People's Republic of China
| | - Dadi Jin
- The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| |
Collapse
|
8
|
Kamatani Y, Okuda A, Maegawa N, Matsumori H, Shigematsu H, Kawamura K, Fukushima H, Tanaka Y. Minimally invasive 360-degree pelvic ring fixation using a combination of crab-shaped fixation and pelvic internal fixator for unstable pelvic ring fracture: A case report. Trauma Case Rep 2021; 36:100540. [PMID: 34660871 PMCID: PMC8502949 DOI: 10.1016/j.tcr.2021.100540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2021] [Indexed: 11/26/2022] Open
Abstract
Surgery with both anterior and posterior fixation is recommended for unstable pelvic ring fractures; nonetheless, the surgical method remains controversial. Crab-shaped fixation is a minimally invasive and strong posterior fixation method using spinal instruments that can reduce vertical dislocations. The use of pelvic internal fixator as a minimally invasive anterior fixation method has been reported. It is recommended in cases where there is an open wound in the lower abdomen or damage to the pelvic organs. Conversely, to the best of our knowledge, there has been no report on the combined use of crab-shaped fixation and pelvic internal fixator to date. We performed a minimally invasive 360-degree fixation using a combination of crab-shaped fixation and pelvic internal fixator for an unstable pelvic ring fracture (AO-C2) and sacral fracture (Denis zone II) with 15-mm vertical dislocation. The sacral fracture was accompanied by a large bone fragment in the spinal canal, which was suspected to have caused neuropathy. Therefore, in addition to posterior fixation, we performed decompression and removed the bone fragment. Postoperative computed tomography revealed that the sacral vertical dislocation was reduced to 7.5 mm. The patient started getting out of bed on postoperative day 2. His neuropathy improved after surgery. Owing to abdominal discomfort, pelvic internal fixator was extracted at 3 months postoperatively. Bone fusion was completed, and posterior fixation was removed at 9 months postoperatively. Two years after, the patient walks independently and has returned to work. Minimally invasive 360-degree pelvic ring fixation is a treatment option for an unstable pelvic ring fracture (AO-C2). CSF360 is a modified CSF surgical technique. Free bone fragment and 360° pelvic ring fixation CSF and INFIX were performed. Unstable pelvic ring fractures can be fixed to 360° of circumference.
Collapse
Affiliation(s)
- Yoshiyuki Kamatani
- Department of Emergency and Critical Care Medicine, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan.,Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan
| | - Akinori Okuda
- Department of Emergency and Critical Care Medicine, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan.,Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan
| | - Naoki Maegawa
- Department of Emergency and Critical Care Medicine, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan.,Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan
| | - Hiroaki Matsumori
- Kashiba Asahigaoka Hospital, Department of Orthopedic Surgery, 839 Uenaka, Kashiba City, Nara 639-0265, Japan
| | - Hideki Shigematsu
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan
| | - Kenji Kawamura
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan
| | - Hidetada Fukushima
- Department of Emergency and Critical Care Medicine, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan
| | - Yasuhito Tanaka
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara City, Nara 634-8522, Japan
| |
Collapse
|
9
|
Suero EM, Greiner A, Becker CA, Cavalcanti Kußmaul A, Weidert S, Pfeufer D, Woiczinski M, Braun C, Flatz W, Böcker W, Kammerlander C. Biomechanical stability of sacroiliac screw osteosynthesis with and without cement augmentation. Injury 2021; 52:2707-2711. [PMID: 32033807 DOI: 10.1016/j.injury.2020.01.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/26/2020] [Accepted: 01/28/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Percutaneous sacroiliac (SI) screw fixation is the standard operative treatment of traumatic disruptions to the posterior pelvic ring. The technique offers good outcomes and early postoperative mobilization, which is vital in elderly patients with fragility fractures of the pelvis. While a double-screw technique has been shown to provide optimal biomechanical stability compared to a single-screw construct, anatomic variations and patient-specific characteristics may prevent the safe insertion of two SI screws. We aimed to determine whether cement augmentation of a single SI screw would provide biomechanical stability comparable to that of the double-screw technique. METHODS Three sacroiliac screw osteosynthesis configurations were tested on 10 human cadaveric pelvis specimens: a single cannulated screw; two cannulated screws; and a single, cement-augmented cannulated screw. Displacement and stiffness of the anterior and posterior pelvic ring after fixation with each technique were measured under axial load. Results where compared using linear regression and paired t-tests. RESULTS A single uncemented screw offered significantly worse stability in the anterior pelvis compared to a double-screw technique (P < 0.05) and to a single cement-augmented screw technique (P < 0.05). There was no significant difference in anterior pelvic ring stability between the single cement-augmented screw technique and the double-screw technique (P > 0.05). There was no significant difference in the stability of the posterior pelvic ring between the three techniques (P > 0.05). CONCLUSIONS A single cement-augmented cannulated sacroiliac screw provides biomechanical stability similar to that of a non-augmented double-screw technique in the treatment of posterior pelvic ring fractures.
Collapse
Affiliation(s)
- Eduardo M Suero
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.
| | - Axel Greiner
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Christopher A Becker
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.
| | - Adrian Cavalcanti Kußmaul
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Simon Weidert
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Daniel Pfeufer
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Matthias Woiczinski
- Department of Orthopedic Surgery, Physical medicine and Rehabilitation, University Hospital, LMU Munich, Munich, Germany
| | - Christian Braun
- Institute of Legal and Forensic Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Wilhelm Flatz
- Institute for Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Wolfgang Böcker
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Christian Kammerlander
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| |
Collapse
|
10
|
Barrientos-Mendoza C, Brañes J, Wulf R, Kremer A, Barahona M, León S. The role of anterior supra-acetabular external fixator as definitive treatment for anterior ring fixation in unstable pelvic fractures. Eur J Trauma Emerg Surg 2021; 48:3737-3746. [PMID: 34097076 DOI: 10.1007/s00068-021-01711-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 05/25/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Management of anterior ring injuries is still a matter of discussion, and there are only few studies reporting anterior external fixator as definitive treatment for unstable pelvic injuries. This study aimed to describe the clinical and radiological outcomes of a consecutive series of mechanically unstable pelvic injuries that were treated with definitive anterior supra-acetabular external fixator for the anterior ring, and to identify risk factors for failure. METHODS We included a consecutive series of patients with unstable pelvic ring fractures who underwent anterior supra-acetabular external fixation for definitive treatment, between January 2012 and January 2020. All demographics, associated injuries and procedures, injury mechanism, and complications were analysed. Pelvic fracture was classified based on Orthopaedic Trauma Association/Tile AO (OTA/AO) and Young-Burgess classifications. Complications associated with the external fixator were revised. All patients were functionally evaluated at final follow-up and asked to report their clinical outcomes using the Majeed score. RESULTS A total of 47 patients were included, of which 25 were females. The median age was 44 years (interquartile range 23-59). Median follow-up duration was 14 months (interquartile range 6-31). The most frequent aetiology was motor vehicle accident (35), followed by fall from height (8). All fractures required posterior pelvic ring fixation. The median time during which patients had external fixation in situ was 11 weeks (interquartile range 9-13). All patients achieved healing of pelvic fracture at median time of 10 weeks (interquartile range 8-12). At final follow-up, the median displacement of the anterior pelvis was 6 mm (interquartile range 0-11). Superficial infection was the most common complication (n = 7). No washout procedures were needed. No major complication was reported. No patient required reoperation for anterior ring fracture. The median Majeed score was 88 points (range 60-95; interquartile range 80-90) at final follow-up. CONCLUSION Our findings suggest that the use of supra-acetabular external fixator is safe and effective for definitive treatment of the anterior ring in unstable pelvic fractures. It is a method with high proportion of excellent results, regardless of the type of fracture. The rate of complications is low, and it does not compromise functional results.
Collapse
Affiliation(s)
- Cristián Barrientos-Mendoza
- Orthopaedics Department, Hospital San José, San Jose 1196, 8380219, Santiago, Region Metropolitana, Chile. .,Orthopaedics Department, Hospital Clínico de La Universidad de Chile, Santiago, Chile. .,Orthopaedics Department, Hip and Pelvis Unit, Clínica Santa María, Santiago, Chile.
| | - Julián Brañes
- Orthopaedics Department, Hospital San José, San Jose 1196, 8380219, Santiago, Region Metropolitana, Chile.,Orthopaedics Department, Hospital Clínico de La Universidad de Chile, Santiago, Chile
| | - Rodrigo Wulf
- Orthopaedics Department, Hospital Clínico de La Universidad de Chile, Santiago, Chile
| | - Alex Kremer
- Orthopaedics Department, Hospital San José, San Jose 1196, 8380219, Santiago, Region Metropolitana, Chile
| | - Maximiliano Barahona
- Orthopaedics Department, Hospital Clínico de La Universidad de Chile, Santiago, Chile
| | - Sebastián León
- Orthopaedics Department, Hospital San José, San Jose 1196, 8380219, Santiago, Region Metropolitana, Chile.,Orthopaedics Department, Hospital Clínico de La Universidad de Chile, Santiago, Chile
| |
Collapse
|
11
|
Sun X, Yan H, Wang J, Liu Z, Tian W, Jia J. Clinical research on minimally invasive internal fixation for the treatment of anterior ring injury in tile C pelvic fracture. Medicine (Baltimore) 2020; 99:e20652. [PMID: 32791662 PMCID: PMC7386985 DOI: 10.1097/md.0000000000020652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The aim of this study is to explore the clinical outcome and indications in treating anterior ring injury of Tile C pelvic fracture with minimally invasive internal fixation.We retrospectively reviewed 18 patients (aged 25-62, 34.2 ± 7.4) with 26 pelvic anterior ring injuries of Tile C pelvic fracture treated with minimally invasive internal fixation in our hospital were from January 2012 to August 2016. Two cases were pubic symphysis diastasis, 15 were anterior ring fracture (7 were bilateral), and 1 was vertical displacement of pubic symphysis associated with pubic ramus fracture. According to Tile classification, 8, 4, and 6 cases were types C1, C2, and C3, respectively. All patients accepted the operation of pelvic fractures on both rings, while the anterior ring injuries were treated with minimally invasive internal fixation. The period from injury to operation was 5 to 32 days (11.2 ± 3.7). Four patients had pubic symphysis diastasis or pelvic anterior ring fracture medial obturator foramen reduced with modified Pfannenstiel incision and fixed with cannulated screws, 14 patients (22 fractures) had a fractured lateral obturator foramen reduced with modified Pfannenstiel incision associated with small iliac crest incision and fixed with locking reconstruction plates. Clinical data, such as operation time, intraoperative bleeding, Matta standard to assess the reduction quality of fracture, and complications, were collected and analyzed.The operation time ranged from 30 to 65 minutes (42.8 ± 18.7), and the intraoperative bleeding volume was 30 to 150 mL (66.5 ± 22.8). All cases were continuously followed-up for 16 to 42 months (30.2 ± 4.6). All fractures were healed between 3 and 9 months postoperatively (4.9 ± 2.7 months). According to the Matta standard assessment, 18, 7, and 1 cases were excellent, good, and fair, respectively, with a 96.2% (25/26) rate of satisfaction. Neither reduction loss, fixation failure, nor infection occurred; complications included 1 patient with fatal liquefaction, 1 patient had lateral femoral cutaneous nerve injury, and 1 patient complained of discomfort in the inguinal area due to fixation stimulation.Minimally invasive internal fixation for pelvic anterior ring injury in Tile C pelvic fracture has the advantages of less damage, safer manipulation, less complications, and good prognosis.
Collapse
Affiliation(s)
- Xiaochen Sun
- Department of Orthopaedic Surgery, Tianjin Haihe Hospital
| | - Huimin Yan
- Department of Orthopaedic Surgery, Tianjin Haihe Hospital
| | - Jianmin Wang
- Department of Orthopaedic Surgery, Da Feng Tong Ren hospital of Yancheng, Jiangsu
| | - Zhaojie Liu
- Department of Orthopaedic Surgery, Tianjin Hospital, Tianjin, China
| | - Wei Tian
- Department of Orthopaedic Surgery, Tianjin Hospital, Tianjin, China
| | - Jian Jia
- Department of Orthopaedic Surgery, Tianjin Hospital, Tianjin, China
| |
Collapse
|
12
|
Zeckey C, Cavalcanti Kußmaul A, Suero EM, Kammerlander C, Greiner A, Woiczinski M, Braun C, Flatz W, Boecker W, Becker CA. The T-pod is as stable as supraacetabular fixation using 1 or 2 Schanz screws in partially unstable pelvic fractures: a biomechanical study. Eur J Med Res 2020; 25:26. [PMID: 32682448 PMCID: PMC7368791 DOI: 10.1186/s40001-020-00427-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 07/10/2020] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Unstable fractures of the pelvis remain the predominant cause of severe hemorrhage, shock and early death in severely injured patients. The use of pelvic binders has become increasingly popular, particularly in the preclinical setting. There is currently insufficient evidence available about the stability of the pelvic binder versus supraacetabular fixation using 1 or 2 Schanz screws. We aimed to analyze the stability of the pelvic binder and supraacetabular fixateurs using either 1 or 2 Schanz screws in a cadaver model of an induced pelvic B-type fracture. MATERIALS AND METHODS The study was undertaken in 7 human fresh-frozen cadaveric pelvises with induced AO-type B fractures. Three stabilization techniques were compared: T-POD (pelvic bandage), supraacetabular external fixator with 1 pin on each side and external fixator with 2 pins on each side. Stability and stiffness were analyzed in a biomechanical testing machine using a 5-step protocol with static and dynamic loading, dislocation data were retrieved by ultrasound sensors at the fracture sites. RESULTS No significant differences in fracture fragment displacement were detected when using either the T-POD, a 1-pin external fixator or a 2-pin external fixator (P > 0.05). The average difference in displacement between the three methods was < 1 mm. CONCLUSIONS Pelvic binders are suitable for reduction of pelvic B-type fractures. They provide stability comparable to that of supraacetabular fixators, independently of whether 1 or 2 Schanz screws per side are used. Pelvic binders provide sufficient biomechanical stability for transferring patients without the need to first replace them with surgically applied external fixators. However, soft tissue irritation has to be taken into consideration and prolonged wear should be avoided. LEVEL OF EVIDENCE Level III.
Collapse
Affiliation(s)
- Christian Zeckey
- Department of General, Trauma and Reconstructive Surgery, University Hospital, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Adrian Cavalcanti Kußmaul
- Department of General, Trauma and Reconstructive Surgery, University Hospital, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Eduardo M Suero
- Department of General, Trauma and Reconstructive Surgery, University Hospital, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Christian Kammerlander
- Department of General, Trauma and Reconstructive Surgery, University Hospital, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Axel Greiner
- Department of General, Trauma and Reconstructive Surgery, University Hospital, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Matthias Woiczinski
- Department of Orthopedic Surgery, Physical medicine and Rehabilitation, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Christian Braun
- Institute of Legal and Forensic Medicine, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Wilhelm Flatz
- Institute for Radiology, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Wolfgang Boecker
- Department of General, Trauma and Reconstructive Surgery, University Hospital, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Christopher A Becker
- Department of General, Trauma and Reconstructive Surgery, University Hospital, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany.
| |
Collapse
|
13
|
Biomechanical comparison of minimally invasive treatment options for Type C unstable fractures of the pelvic ring. Orthop Traumatol Surg Res 2020; 106:127-133. [PMID: 31864961 DOI: 10.1016/j.otsr.2019.09.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/05/2019] [Accepted: 09/16/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND The definite treatment of pelvic C fractures presents a widely discussed issue and undergoes continuous evolution. While the stabilization of the posterior ring has been studied extensively, the fixation of the anterior pelvic ring continuous to be rarely investigated. The importance of the simultaneous stabilization however lays in the earlier mobilization and prevention of long-term damage to the pelvis. Therefore we investigated four combinations of minimally invasive fixation techniques for unstable type C1-3 pelvic injuries and aimed to answer the following research questions: (1) what combination of fixation methods yields the highest stiffness and the least displacement? (2) Is the combination of a single sacroiliac screw (SI-screw) with a transiliac internal fixator (TIFI) a reasonable alternative to two SI-screws? (3) Is a modified unilateral anterior fixation comparable to a retrograde transpubic screw? HYPOTHESIS Minimally invasive fixation techniques provide sufficient biomechanical stability for type C pelvic fractures. METHODS Thirty synthetic full pelvises were divided into 5 groups, of which 4 groups were assigned a different osteosynthesis method and one was an intact pelvis used as reference (group 1: internal fixator+2 sacroiliac screws, group 2: internal fixator+transiliac internal fixator+1 sacroiliac screw, group 3: retrograde transpubic screw+2 sacroiliac screws, group 4: retrograde transpubic screw+transiliac internal fixator+1 sacroiliac screw). The pelvises underwent a protocol of cyclic loading between 100N and 200N, during which they were subjected to compression loads while the position of the fracture fragments was measured every 30 milliseconds. Displacement and stiffness were calculated for statistical analysis. RESULTS The minimally invasive fixation methods investigated in this study all provide sufficient biomechanical stability without one method being superior to the others (p [anterior displacement]=0.61 and p [posterior displacement]=0.88). Group 3 was allowed the least displacement (1.8±0.2mm for anterior and posterior fracture) for the treatment of a C1.3 fracture. The other fixation methods displayed the following dislocations (mm) of the anterior pelvic ring: group 1: 1.9±0.3, group 2: 2.1±0.4, group 4: 2.0±0.5. Posteriorly, the displacements (mm) were the following: group 1: 1.8±0.6, group 2: 1.9±0.2, group 4: 2.0±0.5. DISCUSSION The minimally invasive fixation methods investigated in this study all provide sufficient biomechanical stability without one method being superior to the others since differences were not significant regarding anterior and posterior displacements. Even if not significantly, we could reveal that out of all the methods tested the combination of 2 SI-screws with a retrograde transpubic screw (group 3) displayed the least displacement and highest stiffness. These techniques could therefore potentially improve patient's clinical outcome by reducing the surgical invasiveness and procedure time while providing sufficient biomechanical stability. LEVEL OF EVIDENCE III, comparative in vitro study.
Collapse
|
14
|
Chen J, Fang Y, Walter MC, Yang Y, Yan X. [Anterior subcutaneous internal fixation combined with posterior percutaneous iliosacral screw for treatment of unstable pelvic fractures]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2020; 34:21-26. [PMID: 31939229 PMCID: PMC8171833 DOI: 10.7507/1002-1892.201905098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 11/02/2019] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To assess the effectiveness of anterior subcutaneous internal fixation (INFIX) combined with posterior percutaneous iliosacral screw for the treatment of unstable pelvic fractures. METHODS Between August 2016 and November 2017, 19 cases of unstable pelvic fractures were treated with anterior subcutaneous INFIX combined with posterior percutaneous iliosacral screw. There were 14 males and 5 females, with an average age of 40.6 years (range, 17-69 years). Causes of injury included traffic accident injury in 11 cases, falling from height in 5 cases, bruise injury by heavy object in 3 cases. According to Tile classification, there were 2 cases of type B1, 6 cases of type B2, and 11 cases of type C. Anterior ring injuries included bilateral pubic ischial ramus fractures in 12 cases, unilateral pubic ischial ramus fractures in 5 cases, and symphysis pubis separation in 2 cases. Posterior ring injuries included sacroiliac ligament injuries in 2 cases, unilateral iliac bone fractures in 3 cases, unilateral sacral fractures in 11 cases, unilateral sacroiliac joint dislocation in 2 cases, and bilateral sacral fracture in 1 case. The intraoperative blood loss and operation time were recorded, and the fracture healing and postoperative complications were observed. Matta score was used to evaluate the reduction of fracture, and Majeed score was used to evaluate the postoperative function of patients. RESULTS The operation time was 47-123 minutes (mean, 61.4 minutes) and the intraoperative blood loss was 50-115 mL (mean, 61.1 mL). One case had superficial infection at the site of screw implantation, and 1 case had unilateral cutaneous nerve stimulation, which were cured after corresponding treatment. There was no damage of urinary system, reproductive system, and intestine. All cases were followed up 12-25 months (mean, 18.1 months). All the fractures healed after operation, the average healing time was 9.5 weeks (range, 8-13 weeks); no nonunion, delayed healing, internal fixation loosening, fracture, and other situations occurred. Of the 2 patients with lumbosacral plexus injury before operation, 1 recovered completely and 1 had residual mild claudication. At last follow-up, the reduction of fracture was evaluated by Matta scoring standard, the results were excellent in 13 cases and good in 6 cases, with an excellent and good rate of 100%; the function was evaluated by Majeed scoring standard, the results were excellent in 15 cases and good in 4 cases, with an excellent and good rate of 100%. CONCLUSION Minimally invasive pelvic stabilization by using anterior subcutaneous INFIX and posterior percutaneous iliosacral screw for treatment of unstable pelvic fractures, can achieve good fracture reduction and definitive stabilization with minimum complications and obtain excellent functional outcomes.
Collapse
Affiliation(s)
- Jialei Chen
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Yue Fang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041,
| | - M Chirume Walter
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Yun Yang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Xin'an Yan
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| |
Collapse
|
15
|
Becker CA, Kussmaul AC, Suero EM, Regauer M, Woiczinski M, Braun C, Flatz W, Pieske O, Kammerlander C, Boecker W, Greiner A. Tape suture for stabilization of incomplete posterior pelvic ring fractures-biomechanical analysis of a new minimally invasive treatment for incomplete lateral compression pelvic ring fractures. J Orthop Surg Res 2019; 14:465. [PMID: 31881914 PMCID: PMC6935107 DOI: 10.1186/s13018-019-1509-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 12/05/2019] [Indexed: 12/13/2022] Open
Abstract
Background Incomplete lateral compression fractures (including AO Type B2.1) are among the most common pelvic ring injuries. Although the treatment of choice remains controversial, sacroiliac (SI) screws are commonly used for the operative treatment of incomplete lateral compression fractures of the pelvic ring. However, the disadvantages of SI screws include the risk of nerve root or blood vessel injury. Recently, tape sutures have been found useful as stabilizing material for the treatment of injuries of the syndesmosis, the rotator cuff and knee ligaments. In this current study, we aimed to test the biomechanical feasibility of tape sutures to stabilize the pelvis in the setting of AO Type B2.1 injury. Methods Six human cadaveric pelvises underwent cyclic loading to compare the biomechanical stability of different osteosynthesis methods in a B2.1 fracture model. The methods tested in this experiment were a FiberTape® suture and the currently established SI screw. A 3D ultrasound tracking system was used to measure fracture fragment motion. Linear regression was used to model displacement and stiffness at the posterior and anterior pelvic ring. Results At the posterior fracture site, the FiberTape® demonstrated similar displacement (2.2 ± 0.8 mm) and stiffness (52.2 ± 18.0 N/mm) compared to the sacroiliac screw (displacement 2.1 ± 0.6 mm, P > 0.999; stiffness 50.8 ± 13.0 N/mm, P > 0.999). Considering the anterior fracture site, the FiberTape® again demonstrated similar displacement (3.8 ± 1.3 mm) and stiffness (29.5 ± 9.0 N/mm) compared to the sacroiliac screw (displacement 2.9 ± 0.8 mm, P = 0.2196; stiffness 37.5 ± 11.5 N/mm, P = 0.0711). Conclusion The newly presented osteosynthesis, the FiberTape®, shows promising results for the stabilization of the posterior pelvic ring in AO Type B2.1 lateral compression fractures compared to a sacroiliac screw osteosynthesis based on its minimal-invasiveness and the statistically similar biomechanical properties.
Collapse
Affiliation(s)
| | - Adrian Cavalcanti Kussmaul
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Eduardo Manuel Suero
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Markus Regauer
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Matthias Woiczinski
- Department of Orthopedic Surgery, Physical Medicine and Rehabilitation, University Hospital, LMU Munich, Munich, Germany
| | - Christian Braun
- Department of Legal and Forensic Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Wilhelm Flatz
- Department of Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Oliver Pieske
- Department of Trauma Surgery, Evangelic Hospital Oldenburg, Oldenburg, Germany
| | - Christian Kammerlander
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Wolfgang Boecker
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Axel Greiner
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany.
| |
Collapse
|
16
|
[Three-point buttressing with internal fixator for minimally invasive stabilization of the anterior pelvic ring : Operative technique and first clinical results]. Unfallchirurg 2019; 122:870-879. [PMID: 30617539 DOI: 10.1007/s00113-018-0599-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND The changing age distribution in society inevitably leads to a percentage increase in osteoporotic and fatigue fractures as well as the absolute number of insufficiency fractures of the pelvic ring. Due to pain these fractures lead to a loss of mobility and autonomy. To prevent these consequences surgical treatment is increasingly being performed. OBJECTIVE This article presents a new configuration of an internal fixator on the anterior pelvic ring, the principle of which correlates to a three-point buttressing. METHODS In addition to a description of the configuration of the internal fixator on the anterior pelvic ring and the surgical technique, the article presents the results after the first 23 applications. RESULTS The first results after application of the new internal fixator on the pelvic ring show a low risk, sufficient and minimally invasive stabilization with an encouraging clinical and radiological outcome. CONCLUSION Missing long-term results, also taking into account a higher number of patients, as well as the biomechanical examination of the presented fixator configuration still have to be evaluated.
Collapse
|
17
|
Abstract
PURPOSE OF REVIEW Fractures of osteoporotic bone in elderly individuals need special attention. This manuscript reviews the current strategies to provide sufficient fracture fixation stability with a particular focus on fractures that frequently occur in elderly individuals with osteoporosis and require full load-bearing capacity, i.e., pelvis, hip, ankle, and peri-implant fractures. RECENT FINDINGS Elderly individuals benefit immensely from immediate mobilization after fracture and thus require stable fracture fixation that allows immediate post-operative weight-bearing. However, osteoporotic bone has decreased holding capacity for metallic implants and is thus associated with a considerable fracture fixation failure rate both short term and long term. Modern implant technologies with dedicated modifications provide sufficient mechanical stability to allow immediate weight-bearing for elderly individuals. Depending on fracture location and fracture severity, various options are available to reinforce or augment standard fracture fixation systems. Correct application of the basic principles of fracture fixation and the use of modern implant technologies enables mechanically stable fracture fixation that allows early weight-bearing and results in timely fracture healing even in patients with osteoporosis.
Collapse
Affiliation(s)
- Marianne Hollensteiner
- Institute for Biomechanics, BG Unfallklinik Murnau, Prof.-Kuentscher-Str. 8, 82418, Murnau am Staffelsee, Germany
- Institute for Biomechanics, Paracelsus Medical University, Salzburg, Austria
| | - Sabrina Sandriesser
- Institute for Biomechanics, BG Unfallklinik Murnau, Prof.-Kuentscher-Str. 8, 82418, Murnau am Staffelsee, Germany
- Institute for Biomechanics, Paracelsus Medical University, Salzburg, Austria
| | - Emily Bliven
- Institute for Biomechanics, BG Unfallklinik Murnau, Prof.-Kuentscher-Str. 8, 82418, Murnau am Staffelsee, Germany
- Institute for Biomechanics, Paracelsus Medical University, Salzburg, Austria
| | - Christian von Rüden
- Institute for Biomechanics, BG Unfallklinik Murnau, Prof.-Kuentscher-Str. 8, 82418, Murnau am Staffelsee, Germany
- Institute for Biomechanics, Paracelsus Medical University, Salzburg, Austria
- Department of Trauma Surgery, BG Klinikum Murnau, Murnau, Germany
| | - Peter Augat
- Institute for Biomechanics, BG Unfallklinik Murnau, Prof.-Kuentscher-Str. 8, 82418, Murnau am Staffelsee, Germany.
- Institute for Biomechanics, Paracelsus Medical University, Salzburg, Austria.
| |
Collapse
|
18
|
Chen J, Walter MC, Fang Y. [Research progress in internal fixation for treatment of pelvic anterior ring injury]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2019; 33:1462-1465. [PMID: 31650767 DOI: 10.7507/1002-1892.201811105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective To review the research progress of the application of internal fixation (INFIX) in the treatment of pelvic anterior ring injuries. Methods The recent literature about INFIX in the treatment of pelvic anterior ring injury concerning the surgery technique, biomechanical characteristics, indications, contraindications, advantages, complications, and effectiveness was extensively consulted, reviewed, and summarized. Results INFIX is a relatively novel technique for the treatment of pelvic anterior ring injuries at present. The advantages include good biomechanical properties, extensive indications, minimally invasion, convenient nursing, less complications, and excellent effectiveness. Conclusion It is a clinical method with obvious advantages and development potential for treatment of pelvic anterior ring injuries using INFIX, and further study is needed to improve its effectiveness.
Collapse
Affiliation(s)
- Jialei Chen
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - M Chirume Walter
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Yue Fang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041,
| |
Collapse
|
19
|
Jordan MC, Brems AC, Heintel T, Jansen H, Hoelscher-Doht S, Meffert RH. The Anterior Subcutaneous Pelvic Ring Fixator: No Biomechanical Advantages Compared with External Fixation. J Bone Joint Surg Am 2019; 101:1724-1731. [PMID: 31577677 DOI: 10.2106/jbjs.18.01363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Subcutaneous fixation of the anterior pelvic ring is an emerging surgical technique for trauma patients. The aim of this study was to biomechanically evaluate 2 internal fixation devices for stabilizing a disrupted pelvic ring and compare them with traditional external fixation. METHODS Thirty-six synthetic pelvises with a simulated unstable ring fracture (anteroposterior compression type III) were divided into 3 groups. Group A underwent fixation with a supra-acetabular external fixator; group B, with an internal fixator using the USS II polyaxial system; and group C, with an internal fixator using the Click'X polyaxial system. Biomechanical testing included measurement of peak-to-peak displacement at 300, 400, and 500 N; total displacement; plastic deformation; stiffness; and fracture-line displacement. RESULTS Statistical analysis of all measured parameters revealed no significant differences among the groups. However, vertical displacement of the preshaped connecting rod within the screw heads occurred as a result of inadequate stability of the internal fixation at the rod-screw interface. CONCLUSIONS Although internal fixator devices are placed close to the bone and should therefore maintain greater stiffness, our data did not support the hypothesis of superior stability. Special attention is required when using a curved connecting rod as the rod is easily displaced, placing relevant anatomical structures at risk. These devices require further refinement to avoid potential patient injury.
Collapse
Affiliation(s)
- Martin C Jordan
- Department of Orthopaedic Trauma, Hand, Plastic and Reconstructive Surgery, University Hospital Würzburg, Würzburg, Germany
| | | | | | | | | | | |
Collapse
|
20
|
Becker CA, Kammerlander C, Kußmaul AC, Woiczinski M, Thorwächter C, Zeckey C, Sommer F, Linhart C, Weidert S, Suero EM, Böcker W, Greiner A. Modified less invasive anterior subcutaneous fixator for unstable Tile-C-pelvic ring fractures: a biomechanical study. Biomed Eng Online 2019; 18:38. [PMID: 30925898 PMCID: PMC6441140 DOI: 10.1186/s12938-019-0648-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 03/13/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Operative procedures for unstable pelvic ring fractures remain controversially discussed. Minimally invasive treatment options for pelvic ring fractures have several benefits for the patient. But they can also provide disadvantages. Anterior subcutaneous pelvic fixation (INFIX) has shown promising biomechanical results in pelvic ring fractures, but there is a high complication rate of nerve injuries. An additional screw to the INFIX seems to be more stable. The aim of this study is to compare biomechanical stability of a new modified unilateral INFIX fixing the unilateral injured pelvic ring with the standard INFIX. METHODS 24 composite synthetic full pelvises were used in this study. 4 groups each with a number of six pelvic specimens were randomly assigned. A C1.3-type pelvic fracture was made with an osteotomy of the sacrum and an osteotomy of the anterior pelvic ring. Fracture fixation was performed within the four groups: (1) unilateral INFIX, (2) "extended" unilateral INFIX + additional pubic ramus pedicle screw, (3) bilateral INFIX, (4) "extended" bilateral INFIX + additional pubic ramus pedicle screw. All specimens were cyclic loaded with 200 N until maximum of 300 N. Distance/dislocation of the fracture fragments were detected with 3D-ultrasound measuring system. Stiffness was calculated. RESULTS Extended unilateral INFIX showed the lowest mean dislocation. Lowest rotational stability was displayed by the standard bilateral INFIX. A significant difference (P = 0.04) was shown between the extended unilateral INFIX and the "standard" bilateral INFIX in terms of rotational stability. Extended unilateral INFIX showed significantly improved stability of anterior fracture dislocation (P = 0.01) and unilateral INFIX showed the highest rotational stiffness. Anterior fixation stiffness of the unilateral INFIX was significantly improved using an additional symphysis/pubic ramus screw (P = 0.002). CONCLUSION Extended unilateral INFIX (+ additional pubic ramus pedicle screw) is a feasible minimally invasive treatment for anterior pelvic ring fractures. Higher stability and lower probability of bilateral nerve damage is provided by the extended unilateral INFIX compared to the standard bilateral INFIX.
Collapse
Affiliation(s)
- Christopher A Becker
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Christian Kammerlander
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Adrian Cavalcanti Kußmaul
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Matthias Woiczinski
- Department of Orthopedics, Physical Medicine and Rehabilitation, University Hospital, LMU Munich, Munich, Germany
| | - Christoph Thorwächter
- Department of Orthopedics, Physical Medicine and Rehabilitation, University Hospital, LMU Munich, Munich, Germany
| | - Christian Zeckey
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Fabian Sommer
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Christoph Linhart
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Simon Weidert
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Eduardo M Suero
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Wolfgang Böcker
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Axel Greiner
- Department of General Trauma & Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany.
| |
Collapse
|
21
|
Yin Y, Zhang R, Li S, Su K, Hou Z, Zhang Y. Complications Following Internal Fixator in the Treatment of Pelvic Fracture. Orthopedics 2019; 42:e7-e13. [PMID: 30403824 DOI: 10.3928/01477447-20181102-06] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 03/19/2018] [Indexed: 02/03/2023]
Abstract
The aim of this systematic review was to investigate the incidence of complications of the internal fixator in the treatment of anterior pelvic ring injury. The literature was comprehensively searched from 1980 to January 2017 to identify potential studies. Six studies involving 272 cases of anterior pelvic ring injury treated with the internal fixator were included in this meta-analysis. The rates of wound infection, heterotopic ossification, nerve paresthesia, pain, and fracture dislocation were 5.7%, 35.1%, 28.2%, 3.7%, and 3.0%, respectively. This new technique should be prudently used to treat pelvic fractures. [Orthopedics. 2019; 42(1):e7-e13.].
Collapse
|
22
|
McLachlin S, Lesieur M, Stephen D, Kreder H, Whyne C. Biomechanical analysis of anterior ring fixation of the ramus in type C pelvis fractures. Eur J Trauma Emerg Surg 2017; 44:185-190. [PMID: 28391395 DOI: 10.1007/s00068-017-0788-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 03/20/2017] [Indexed: 11/30/2022]
Abstract
PURPOSE This biomechanical study compared the stability of four different ramus fracture fixation methods for Type C pelvic ring injuries in the absence of posterior fixation. METHODS A 5-mm vertical osteotomy of the mid-superior and inferior pubic ramus was created in 12 synthetic pelvic models. Four surgical constructs were compared: (1) two-pin AIIS external fixation, (2) 3.5-mm reconstruction plating, (3) bicortical, fully threaded 3.5-mm, and (4) 6.5-mm pubic ramus screws. Specimens were tested in a simulated one-legged stance on a hemiarthroplasty implant in three stages: (1) no applied load, (2) application of the loading fixture preload to the sacrum (6N), and (3) following six cycles of a 250N load. Stability was assessed based on resultant displacement of the fracture sites at the superior ramus and the anterior sacroiliac joint. RESULTS The bicortical, fully threaded 6.5-mm pubic ramus screw provided the most stable ramus fracture fixation (0.5 ± 0.4 mm) displacement under load and was the only construct to finish testing without gross posterior pelvic disruption. Plate constructs finished the final loading stage with only a small increase (3.1 ± 2.3 mm) in ramus fracture gap size, but had significant displacement at the SI joint (>20 mm). 3.5-mm screw constructs had 1.6 ± 0.7 mm of ramus displacement in the preload stage, but had complete posterior pelvic disruption (>20 mm) that prevented further testing. External fixation was unstable at the ramus and sacroiliac sites in the initial setup. CONCLUSIONS The bicortical, fully threaded 6.5-mm pubic ramus screw was the only anterior fixation construct tested that controlled motion at both the anterior and posterior pelvic rings in the absence of posterior fixation.
Collapse
Affiliation(s)
- S McLachlin
- Orthopaedic Biomechanics Laboratory, Sunnybrook Research Institute, 2075 Bayview Ave., Room S611, Toronto, M4N 3M5, ON, Canada
| | - M Lesieur
- Division of Orthopaedic Surgery, University of Toronto, Toronto, ON, Canada
| | - D Stephen
- Division of Orthopaedic Surgery, University of Toronto, Toronto, ON, Canada
| | - H Kreder
- Division of Orthopaedic Surgery, University of Toronto, Toronto, ON, Canada
| | - C Whyne
- Orthopaedic Biomechanics Laboratory, Sunnybrook Research Institute, 2075 Bayview Ave., Room S611, Toronto, M4N 3M5, ON, Canada. .,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada. .,Division of Orthopaedic Surgery, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
23
|
Shetty AP, Bosco A, Perumal R, Dheenadhayalan J, Rajasekaran S. Midterm radiologic and functional outcomes of minimally-invasive fixation of unstable pelvic fractures using anterior internal fixator(INFIX) and percutaneous iliosacral screws. J Clin Orthop Trauma 2017; 8:241-248. [PMID: 28951641 PMCID: PMC5605730 DOI: 10.1016/j.jcot.2017.05.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 05/25/2017] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Anterior pelvic external fixation is associated with pin site infections, aseptic loosening with loss of reduction, frame bulkiness hindering patient mobilization and consequent difficulties in inpatient nursing. We performed a single-center prospective series to evaluate the feasibility, safety, limitations and midterm radiologic and functional outcomes of an alternative minimally invasive pelvic internal fixation technique using an anterior subcutaneous pelvic internal fixator (INFIX) and percutaneous iliosacral screws in unstable pelvic ring fractures. METHODS Fifteen consecutive patients with vertically and/or rotationally unstable pelvic fractures, presenting to a Level-1 trauma center were treated with closed reduction, appropriate posterior stabilization with percutaneous iliosacral screws and anterior INFIX application. Outcomes were analyzed with respect to the quality of fracture reduction (Matta's radiologic criteria), ease of inpatient nursing, patient mobility and comfort, functional outcomes at final follow-up (Majeed score, SF-12 score), social reintegration and complications. RESULTS Most common injury pattern was AO/OTA type 61-C pelvic fracture in thirteen patients. Mean procedure time and intra-operative blood loss were, 57.1+/-4.9 min (range,51-68 min) and 115.3+/-26.7 ml (range,80-170 ml) respectively. Mean follow-up was 34.9+/-4.1 months (range,31-42 months). Fracture reduction was excellent in twelve and good in three patients (Matta's criteria). Functional outcomes were excellent in eight and good in seven patients (Majeed score). Mean SF-12 scores for physical and mental health were 48.58+/-5.61 and 50.89+/-3.97 respectively. Thirteen patients returned to their pre-injury jobs. All fifteen patients reintegrated into society without any restrictions. INFIX was removed at a mean post-operative period of 7.3+/-1.5 months (range,5.5-11 months). Complications included, lateral femoral cutaneous nerve irritation(n = 1), superficial wound infection(n = 1) and loss of reduction(n = 2). CONCLUSION Minimally invasive pelvic stabilization using INFIX and percutaneous iliosacral screws is easy to learn and apply, achieves good fracture reduction and definitive stabilization with minimum complications and offers excellent functional outcomes at a minimum follow-up of 31 months. LEVEL OF EVIDENCE Level IV.
Collapse
|
24
|
Stahel PF, Hammerberg EM. History of pelvic fracture management: a review. World J Emerg Surg 2016; 11:18. [PMID: 27148396 PMCID: PMC4855448 DOI: 10.1186/s13017-016-0075-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 04/29/2016] [Indexed: 03/20/2023] Open
Abstract
High-energy pelvic fractures represent potentially life-threatening injuries due to the risk of acute exsanguinating retroperitoneal hemorrhage. The first report of a severe pelvic ring disruption dates back to Charles Hewitt Moore’s seminal publication from 1851. Significant advantages in the understanding of injury mechanisms and treatment concepts of pelvic ring injuries evolved in the 20th century, and provided the basis to current classification-guided treatment and life-saving “damage control” concepts. However, there is a paucity of reports in the current literature focused on the historic background on the treatment of pelvic ring injuries. The present review was designed to summarize the history and evolution of our current understanding of the mechanisms and management strategies for severe pelvic ring injuries (excluding acetabular fractures which represent a different entity outside of the scope of this article).
Collapse
Affiliation(s)
- Philip F Stahel
- Department of Orthopaedics, Univesity of Colorado, School of Medicine, Denver Health Medical Center, 777 Bannock Street, Denver, CO 80204 USA ; Department of Neurosurgery, Univesity of Colorado, School of Medicine, Denver Health Medical Center, 777 Bannock Street, Denver, CO 80204 USA
| | - E Mark Hammerberg
- Department of Orthopaedics, Univesity of Colorado, School of Medicine, Denver Health Medical Center, 777 Bannock Street, Denver, CO 80204 USA
| |
Collapse
|