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Lapidus O, Linder M, Barenius B, Lapidus LJ. Total knee arthroplasty following surgical treatment of tibial plateau fractures - A retrospective cohort study. Knee 2024; 50:27-32. [PMID: 39106706 DOI: 10.1016/j.knee.2024.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 07/10/2024] [Accepted: 07/16/2024] [Indexed: 08/09/2024]
Abstract
BACKGROUND Previous studies have shown the risk of post-traumatic osteoarthritis to be high following tibial plateau fracture surgery. Several investigations have examined the risk of total knee arthroplasty (TKA) following tibial plateau fracture treatment, but the risk of TKA in relation to the general population in Sweden has not previously been explored. AIM To determine the incidence of TKA following surgical treatment of tibial plateau fractures and compare it with that of an age-matched population in Sweden. METHODS A total of 349 tibial plateau fractures treated with open reduction internal fixation between 2002 and 2010 were identified from local hospital registers using diagnosis and surgical codes. The cohort was cross-matched with the Swedish Knee Arthroplasty Register to determine which patients had been treated with TKA within 10 years of fracture surgery. The incidence of primary TKA in the age-matched population in Sweden was obtained from the National Patient Register for comparison. RESULTS Mortality-adjusted prevalence of TKA at 10 years following fracture surgery was 6.7% (relative risk (RR) = 5.5) and peaked during the second postoperative year (RR=19.3). High age was independently associated with increased risk of TKA (P=0.004); no other examined patient factors were significantly associated with TKA. CONCLUSION The overall prevalence of TKA at 10 years following tibial plateau fracture surgery is low at 6.7%, however the risk is many times greater than that of the age-matched population in Sweden. The majority of patients require TKA within a few years of fracture treatment, hence post-traumatic osteoarthritis may arguably have not been the reason for TKA as this would have taken longer to develop.
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Affiliation(s)
- Oscar Lapidus
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
| | - Martin Linder
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden; Department of Orthopedics, Södersjukhuset, Stockholm, Sweden
| | - Björn Barenius
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden; Department of Orthopedics, Södersjukhuset, Stockholm, Sweden
| | - Lasse J Lapidus
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden; Department of Orthopedics, Södersjukhuset, Stockholm, Sweden
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Neidlein C, Watrinet J, Pätzold R, Berthold DP, Prall WC, Böcker W, Holzapfel BM, Fürmetz J, Bormann M. Patient-Reported Outcomes following Tibial Plateau Fractures: Mid- to Short-Term Implications for Knee Function and Activity Level. J Clin Med 2024; 13:2327. [PMID: 38673600 PMCID: PMC11051425 DOI: 10.3390/jcm13082327] [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: 03/20/2024] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Background: Patients with complex proximal tibial plateau fractures (TPFs) tend to overestimate the prognosis of their injury, potentially due to factors such as a limited understanding, optimism, and the influence of the pain intensity. Understanding the reasons behind this misperception is crucial for healthcare providers to effectively communicate with patients and establish realistic expectations for treatment outcomes. The purpose of this study was to analyze the outcomes of TPFs, with a particular focus on patient-reported outcome measures concerning functional recovery, pain levels, and overall satisfaction with treatment. The authors aim to provide valuable insights into the realistic expectations and potential limitations that patients may encounter during their recovery journey. Methods: In this retrospective single-center study, all surgically treated TPFs between January 2014 and December 2019 with a minimum follow-up of 12 months were included. Several patient-reported outcome measures were obtained, including the International Knee documentation Committee Score (IKDC), Lyholm score, Tegner score, and visual analog scale (VAS) for pain. Fractures were classified according to Schatzker, and then subgrouped into simple (Schatzker I-III) and complex (Schatzker IV-VI) fractures. Results: A total of 54 patients (mean age 51.1 ± 11.9 years, 59.3% female) with a mean follow-up time of 3.9 years were included. Schatzker II fractures were present in 48% (n = 26) of the cases, with Schatzker III in 6% (n = 3), Schatzker IV fractures in 6% (n = 3), and Schatker VI fractures in 41% (n = 22) of the cases. All outcome scores showed a significant improvement between the first year after surgery and the last follow-up (mean: 3.9 years). Simple fractures showed significantly lower patient-reported outcomes when compared to the preinjury state; however, good to excellent results were observed. Patient-reported outcomes of complex fractures showed no significant changes in the study period with good to excellent results. When it comes to the Lysholm score, there were no significant differences in the outcome between simple and complex fractures. Furthermore, there was a return-to-sports rate of 100%, with high rates of changing sporting activity in 25% (simple fractures) and 45% in complex fractures. Conclusions: The data from this study showed that both simple and complex tibial plateau fractures show favorable outcomes at the midterm follow-up, and that injury severity does not correlate with worse results. While patients may tend to overestimate the recovery speed, this research highlights the importance of long-term follow-up, demonstrating a substantial improvement between one year post-surgery and the final evaluation. Return-to-sports rates were high, with adjustments needed for certain activities. However, patients should recognize the need to shift to lower-impact sports and the lengthy recovery process.
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Affiliation(s)
- Claas Neidlein
- Department of Orthopedics and Trauma Surgery, University Hospital, LMU Munich, Musculoskeletal University Center Munich (MUM), Marchioninistraße 15, 81377 Munich, Germany; (C.N.)
| | - Julius Watrinet
- Department of Trauma Surgery, Trauma Center Murnau, Professor-Küntscher-Str. 8, 82418 Murnau, Germany
| | - Robert Pätzold
- Department of Trauma Surgery, Trauma Center Murnau, Professor-Küntscher-Str. 8, 82418 Murnau, Germany
| | - Daniel P. Berthold
- Department of Orthopedics and Trauma Surgery, University Hospital, LMU Munich, Musculoskeletal University Center Munich (MUM), Marchioninistraße 15, 81377 Munich, Germany; (C.N.)
| | - Wolf Christian Prall
- Devision of Knee, Hip, Shoulder and Elbow Surgery, Schoen Clinic Munich, Harlachinger Straße 51, 81547 Munich, Germany
| | - Wolfgang Böcker
- Department of Orthopedics and Trauma Surgery, University Hospital, LMU Munich, Musculoskeletal University Center Munich (MUM), Marchioninistraße 15, 81377 Munich, Germany; (C.N.)
| | - Boris Michael Holzapfel
- Department of Orthopedics and Trauma Surgery, University Hospital, LMU Munich, Musculoskeletal University Center Munich (MUM), Marchioninistraße 15, 81377 Munich, Germany; (C.N.)
| | - Julian Fürmetz
- Department of Orthopedics and Trauma Surgery, University Hospital, LMU Munich, Musculoskeletal University Center Munich (MUM), Marchioninistraße 15, 81377 Munich, Germany; (C.N.)
- Department of Trauma Surgery, Trauma Center Murnau, Professor-Küntscher-Str. 8, 82418 Murnau, Germany
| | - Markus Bormann
- Department of Orthopedics and Trauma Surgery, University Hospital, LMU Munich, Musculoskeletal University Center Munich (MUM), Marchioninistraße 15, 81377 Munich, Germany; (C.N.)
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Förch S, Lisitano L, Mayr E. Primary Total Knee Arthroplasty for Fractures Around the Knee. ZEITSCHRIFT FUR ORTHOPADIE UND UNFALLCHIRURGIE 2023; 161:619-627. [PMID: 35654393 DOI: 10.1055/a-1807-7668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Primary arthroplasty for fractures of the femoral neck is a very common procedure and even the gold standard for the geriatric patient. In contrast, primary arthroplasty for perigenicular fractures is a rare event. On the other hand, it can be a therapeutic option, especially for geriatric patients with prior osteoarthritis or complex fractures and severe osteoporosis.The operative procedure can be complex and requires experience in primary and revision arthroplasty as well as suitable implants and good preoperative planning.There are case series reporting primary arthroplasty in a total of approximately 200 cases of both distal femoral and proximal tibial fractures. Complication rates are between 0 and 90% and mostly concern wound healing problems and infections. From a functional point of view, predominantly good results and a range of motion of 100° can be achieved.Primary arthroplasty can be a therapeutic option for selected cases of perigenicular fractures and gives good functional results. The most frequent complications are wound healing problems and infections.
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Affiliation(s)
- Stefan Förch
- Abteilung für Unfallchirurgie, Orthopädie, plastische und Handchirurgie, Universitätsklinikum Augsburg, Augsburg, Deutschland
| | - Leonard Lisitano
- Abteilung für Unfallchirurgie, Orthopädie, plastische und Handchirurgie, Universitätsklinikum Augsburg, Augsburg, Deutschland
| | - Edgar Mayr
- Unfallchirurgie, Orthopädie, Hand- und Plastische Chirurgie, Universität Augsburg Medizinische Fakultät, Augsburg, Deutschland
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Yuan T, Cai D, Yang F, Wang Z, Qin J. Clinical Analysis of the Frosch Approach in the Treatment of Posterolateral Tibial Plateau Fractures Combined with Lateral Tibial Plateau Fractures. Orthop Surg 2023; 15:2974-2984. [PMID: 37706250 PMCID: PMC10622288 DOI: 10.1111/os.13890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 09/15/2023] Open
Abstract
OBJECTIVE The treatment of posterolateral tibial plateau fractures is difficult, and providing sufficient exposure and effective fixation is a challenge. There is great controversy regarding the surgical approach for posterolateral tibial plateau fractures. The purpose of the study was to investigate the clinical effects of open reduction and internal fixation using the Frosch approach for the treatment of posterolateral tibial plateau fractures combined with lateral tibial plateau fractures. METHODS Data from 19 patients with posterolateral tibial plateau fractures combined with lateral tibial plateau fractures treated from May 2018 to January 2022 were retrospectively analyzed. There were nine men and 10 women, ranging in age from 22 to 62 years, with an average age of 45.6 years. All patients were treated using the Frosch approach. Under direct vision, the posterolateral and lateral fractures were reduced, and full bone grafting was performed. We reshaped the oblique "T" shaped plate for the distal radius and placed it on the posterolateral tibial plateau to fix the posterolateral fractures. The lateral inverted "L" shaped locking plate was placed on the lateral tibial plateau to fix the lateral tibial plateau fractures. Within 2 weeks after the operation, the patients were instructed to perform knee joint function exercises within 90°. At the last follow-up, the Rasmussen radiological criteria were used to evaluate the effectiveness of fracture reduction and fixation. And the knee joint function was evaluated using Rasmussen functional score. RESULTS The operation time ranged from 100 to 180 min, with an average of 134.2 min; intraoperative blood loss ranged from 20 to 150 mL, with an average of 66.8 mL. The follow-up duration ranged from 14 to 58 months, with an average of 36.2 months. There were no complications, such as vascular or nerve injury or incision infection. Fracture healing was achieved in all patients, and the healing time ranged from 10 to 14 weeks, with an average of 11.2 weeks. During the follow-up period, there was no loosening or breakage of the internal fixation, varus or valgus deformity of the knee joint, re-collapse of the articular surface, or instability of the knee joint. At the last follow-up, the effectiveness of fracture reduction and fixation was excellent in 13 patients and good in six patients. And the knee joint function was excellent in 17 patients and good in two patients. CONCLUSION The Frosch approach for open reduction and internal fixation in the treatment of posterolateral tibial plateau fractures combined with lateral tibial plateau fractures has a definite clinical benefit and is worthy of promotion and application.
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Affiliation(s)
- Tangbo Yuan
- Department of Orthopaedics, Sir Run Run HospitalNanjing Medical UniversityNanjingChina
| | - Dawei Cai
- Department of Orthopaedics, Sir Run Run HospitalNanjing Medical UniversityNanjingChina
| | - Fei Yang
- Department of Orthopaedics, Sir Run Run HospitalNanjing Medical UniversityNanjingChina
| | - Zeyong Wang
- Department of Orthopaedics, Sir Run Run HospitalNanjing Medical UniversityNanjingChina
| | - Jian Qin
- Department of Orthopaedics, Sir Run Run HospitalNanjing Medical UniversityNanjingChina
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Sachse A, Hasenbein I, Hortschansky P, Schmuck KD, Maenz S, Illerhaus B, Kuehmstedt P, Ramm R, Huber R, Kunisch E, Horbert V, Gunnella F, Roth A, Schubert H, Kinne RW. BMP-2 (and partially GDF-5) coating significantly accelerates and augments bone formation close to hydroxyapatite/tricalcium-phosphate/brushite implant cylinders for tibial bone defects in senile, osteopenic sheep. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:31. [PMID: 37378714 PMCID: PMC10307740 DOI: 10.1007/s10856-023-06734-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023]
Abstract
Bilateral defects (diameter 8 mm) in the medial tibial head of senile, osteopenic female sheep (n = 48; 9.63 ± 0.10 years; mean ± SEM) were treated with hydroxyapatite (HA)/beta-tricalcium phosphate (β-TCP)/dicalcium phosphate dihydrate (DCPD; brushite) cylinders coated with BMP-2 (25 or 250 micrograms) or growth differentiation factor (GDF)-5 (125 or 1250 micrograms; left side); cylinders without BMP served as controls (right side). Three, 6, and 9 months post-operation (n = 6 each group), bone structure and formation were analyzed in vivo by X-ray and ex vivo by osteodensitometry, histomorphometry, and micro-computed tomography (micro-CT) at 3 and 9 months. Semi-quantitative X-ray evaluation showed significantly increasing bone densities around all implant cylinders over time. High-dose BMP-2-coated cylinders (3 and 9 months) and low-dose GDF-5-coated cylinders (3 and 6 months) demonstrated significantly higher densities than controls (dose-dependent for BMP-2 at 3 months). This was confirmed by osteodensitometry at 9 months for high-dose BMP-2-coated cylinders (and selected GDF-5 groups), and was again dose-dependent for BMP-2. Osteoinduction by BMP-2 was most pronounced in the adjacent bone marrow (dynamic histomorphometry/micro-CT). BMP-2 (and partially GDF-5) significantly increased the bone formation in the vicinity of HA/TCP/DCPD cylinders used to fill tibial bone defects in senile osteopenic sheep and may be suitable for surgical therapy of critical size, non-load-bearing bone defects in cases of failed tibial head fracture or defect healing.
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Affiliation(s)
- André Sachse
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
- Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Ines Hasenbein
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
- Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Peter Hortschansky
- Leibniz-Institute for Natural Products Research and Infection Biology-Hans-Knoell-Institute, Jena, Germany
| | - Klaus D Schmuck
- Johnson & Johnson Medical GmbH, DePuy Synthes, Norderstedt, Germany
| | - Stefan Maenz
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Jena, Germany
| | - Bernhard Illerhaus
- Federal Institute for Materials Research and Testing (BAM), Berlin, Germany
| | - Peter Kuehmstedt
- Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Jena, Germany
| | - Roland Ramm
- Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Jena, Germany
| | - René Huber
- Institute of Clinical Chemistry, Hannover Medical School, Hannover, Germany
| | - Elke Kunisch
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Victoria Horbert
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Francesca Gunnella
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Andreas Roth
- Bereich Endoprothetik/Orthopädie, Klinik für Orthopädie, Unfallchirurgie und Plastische Chirurgie, Uniklinik Leipzig AöR, Leipzig, Germany
| | - Harald Schubert
- Institute of Laboratory Animal Sciences and Welfare, Jena University Hospital, Jena, Germany
| | - Raimund W Kinne
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany.
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Berlusconi M, Moretti B, Vicenti G. What's new in orthopaedic trauma: the Italian AO Trauma experience. Injury 2023; 54 Suppl 1:S1. [PMID: 37030954 DOI: 10.1016/j.injury.2023.02.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/10/2023]
Affiliation(s)
| | - Biagio Moretti
- Research Officer AO Trauma Italy, Director of Orthopaedics and Trauma, University of Bari, Italy
| | - Giovanni Vicenti
- Education Officer AO Trauma Italy, Professor of Orthopaedic and Trauma, University of Bari, Italy
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Pflüger P, Schlickewei C, Barg A, Valderrabano V. [Postprimary early elective total arthroplasty in severe ankle fractures]. UNFALLCHIRURGIE (HEIDELBERG, GERMANY) 2022; 125:946-950. [PMID: 36416890 PMCID: PMC9705496 DOI: 10.1007/s00113-022-01252-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Treatment of the ankle joint with total ankle arthroplasty (TAA) is an established and safe surgical treatment for osteoarthritis of the ankle. Modern implants have low revision rates and are superior to ankle arthrodesis in terms of patient-reported outcomes. The importance of primary TAA treatment of ankle fractures is unclear. There are currently no studies in the literature on this topic. In view of the increasing number of cases of unstable ankle fractures, especially in older patients and with increasing functional demands also in old age, it is important to consider TAA in the management of these fractures in the future. Clinical studies are necessary to evaluate the treatment of ankle fractures using TAA.
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Affiliation(s)
| | - Carsten Schlickewei
- Klinik und Poliklinik für Unfallchirurgie und Orthopädie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Deutschland
| | - Alexej Barg
- Klinik und Poliklinik für Unfallchirurgie und Orthopädie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Deutschland
| | - Victor Valderrabano
- SWISS ORTHO CENTER, Professor University of Basel, Swiss Medical Network, Schmerzklinik Basel, Hirschgässlein 15, 4010, Basel, Schweiz.
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8
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Outcomes of Primary Total Knee Arthroplasty in Fractures Around the Knee in the Elderly: A Systematic Review and Pooled Analysis of 212 Patients Across 11 Studies. Indian J Orthop 2021; 56:533-546. [PMID: 35342521 PMCID: PMC8921389 DOI: 10.1007/s43465-021-00579-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/15/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Treatment of fractures around the knee in the elderly is somewhat controversial with primary total knee arthroplasty (TKA) gaining prominence over the past decade or so, as an alternative for open reduction and internal fixation. The present review was conceptualized to review the published literature and evaluate outcomes of TKA in these patients, and to understand whether this is a viable treatment option for these fractures. We have further tried to identify complications and the challenges faced while performing this surgery. METHODS PRISMA guidelines were followed and search was conducted on three databases-PubMed, EMBASE and SCOPUS. Studies evaluating multiple factors related to outcomes and complications in primary TKA performed for fractures around the knee in the elderly were included. Cadaveric studies, conference abstracts, case reports, and any studies that included non-traumatic cases or revision after failed internal fixation, were all excluded. RESULTS Eleven studies, published between 2011 and 2021 were included in our review. There was significant female preponderance in the study population (M:F = 1:3). Implants with higher constraint (high post, hinged prosthesis) were frequently required to compensate for ligamentous laxity due to the fractures. On pooled analysis the mean Knee Society Score (KSS) knee score was 84.62 (excellent), and mean knee range of motion was 107.25°. However, the mean KSS function score was 56.71 (poor), which could have been due to co-morbid conditions and pre-operative status. Overall complication rate was 14.6%; surgical site infection was the most commonly reported. CONCLUSION There remains limited evidence for the use of TKA as a primary treatment option for these injuries. In the presence of specific conditions, and in expert hands-it may be a viable alternative to osteosynthesis with comparable outcomes. More focused studies are needed to compare the two treatment options and to formulate guidelines.
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Zhu Y, Qin S, Jia Y, Li J, Chen W, Zhang Q, Zhang Y. Surgeon volume and the risk of deep surgical site infection following open reduction and internal fixation of closed tibial plateau fracture. INTERNATIONAL ORTHOPAEDICS 2021; 46:605-614. [PMID: 34550417 DOI: 10.1007/s00264-021-05221-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/14/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Emerging evidences supported that the surgeon case volume significantly affected post-operative complications or outcomes following a range of elective or non-elective orthopaedic surgery; no data has been available for surgically treated tibial plateau fractures. We aimed to investigate the relationship between surgeon volume and the risk of deep surgical site infection (DSSI) following open reduction and internal fixation (ORIF) of closed tibial plateau fracture. METHODS This was a further analysis of the prospectively collected data. Adult patients undergoing ORIF procedure for closed tibial plateau fracture between January 2016 and December 2019 were included. Surgeon volume was defined as the number of surgically treated tibial fractures in the preceding 12 months and dichotomized on the basis of the optimal cut-off value determined by the receiver operating characteristic (ROC) curve. The outcome was DSSI within one year post-operatively. Multiple multivariate logistic models were constructed for "drilling down" adjustment of confounders. Sensitivity and subgroup analyses were performed to assess the robustness of outcome and identify the "optimal" subgroups. RESULTS Among 742 patients, 20 (2.7%) had a DSSI and 17 experienced re-operations. The optimal cut-off value for case volume was nine, and the low-volume surgeon was independently associated with 2.9-fold (OR, 2.9; 95%CI, 1.1 to 7.5) increased risk of DSSI in the totally adjusted multivariate model. The sensitivity analyses restricted to patients with original BMI data or those operated within 14 days after injury did not alter the outcomes (OR, 2.937, and 95%CI, 1.133 to 7.615; OR, 2.658, and 95%CI, 1.018 to 7.959, respectively). The subgroup analyses showed a trend to higher risk of DSSI for type I-IV fractures (OR, 4.6; 95%CI, 0.9 to 27.8) classified as Schatzker classification and substantially higher risk in patients with concurrent fractures (OR, 6.1; 95%CI, 1.0 to 36.5). CONCLUSION The surgeon volume is independently associated with the rate of DSSI, and a number of ≥ nine cases/year are necessarily kept for reducing DSSIs; patients with concurrent fractures should be preferentially operated on by high-volume surgeons.
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Affiliation(s)
- Yanbin Zhu
- Department of Orthopaedic Surgery, the 3Rd Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,Orthopaedic Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Shiji Qin
- Department of Orthopaedic Surgery, the 3Rd Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,Orthopaedic Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Yuxuan Jia
- Basic Medicine School of Hebei Medical University, Shijiazhuang, 050000, Hebei, People's Republic of China
| | - Junyong Li
- Department of Orthopaedic Surgery, the 3Rd Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,Orthopaedic Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Wei Chen
- Department of Orthopaedic Surgery, the 3Rd Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,Orthopaedic Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Qi Zhang
- Department of Orthopaedic Surgery, the 3Rd Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China. .,Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China. .,Orthopaedic Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China. .,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China.
| | - Yingze Zhang
- Department of Orthopaedic Surgery, the 3Rd Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China. .,Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China. .,Orthopaedic Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China. .,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China. .,Chinese Academy of Engineering, Beijing, 100088, People's Republic of China.
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