Influence of reduction quality on functional outcome and quality of life in the surgical treatment of tibial plateau fractures: A retrospective cohort study

Low rate of secondary interventions for post-traumatic osteoarthritis and satisfactory mid-to-long-term outcomes following tibial plateau fractures

BACKGROUND

The purpose of this study was to quantify the incidence of total knee arthroplasty (TKA) and other osteoarthritis-related procedures following surgical and conservative treatment of tibial plateau fractures (TPF). Secondary goal was to analyse the long-term clinical outcomes and identify risk factors for secondary interventions and poor outcomes.

METHODS

All patients diagnosed with TPF at a single level 1 university trauma centre between January 1, 2008 and December 31, 2016 were retrospectively reviewed. Clinical outcomes were measured by use of the Knee injury and Osteoarthritis Outcome Score (KOOS), the International Knee Documentation Committee Score (IKDC) and the Tegner Activity Score (TAS). Joint-preserving interventions and conversions to TKA were recorded as well as demographic data, injury mechanisms, treatment specifics and complications.

RESULTS

105 cases of TPF, 89 with surgical and 16 with conservative treatment, with a median follow-up of 10.4 years (interquartile range, IQR 9-13), were included. The conversion rate to TKA was 2%, with all cases occurring in the conservative treatment group. 9% underwent a joint-preserving intervention. Higher body mass index (BMI) was associated with an increased risk for secondary intervention (HR 1.4, p = 0.03). The overall KOOS was 78.7 (IQR 69-87) for surgical and 86 (IQR 70-93) for conservative treatment. The IKDC score was 63.6 ± 16.5 for surgical and 66.3 ± 22.2 for conservative treatment and the median TAS was 3 (IQR 3-4 vs. 3-6) for both groups. In the surgical treatment cohort, a negative correlation was found between Schatzker classification (Spearman´s rp = -0.24, p = 0.03), duration of surgery (Spearman´s rp = -0.23, p = 0.03), American Society of Anesthesiologists (ASA) risk classification (Spearman´s rp = -0.28, p = 0.01) and the IKDC score. A higher TAS was observed for non-smokers (median 3, IQR 3-4) compared to smokers (median 2.5, IQR 2-3, p = 0.02).

CONCLUSIONS

There was a low incidence of TKA and joint-preserving, osteoarthritis-related procedures following TPF. Both conservative and surgical treatments can achieve satisfactory long-term clinical outcomes, when appropriately indicated. Obese patients are at increased risk for secondary interventions. The expectations of patients with a higher ASA risk score and complex fractures, accompanied by longer surgical times, should be managed carefully to ensure a realistic outlook on functional outcomes.

Lateral epicondyle osteotomy results in improved radiologic and functional outcomes in severe lateral tibial plateau fractures: a retrospective cohort study

BACKGROUND

This study evaluated the clinical and radiological outcomes of lateral tibial plateau fractures involving the central and postero-lateral regions, comparing an extended lateral approach with lateral epicondyle osteotomy (ECO) to a conventional approach without an extention (No-ECO).

METHODS

A retrospective cohort study was conducted at two centers, examining complex lateral tibial plateau fractures treated with either an extended lateral approach with ECO or without it. Only AO/OTA type B3/C3 fractures involving the antero-latero-central (ALC) and postero-latero-central (PLC) segments were included. Fracture reduction quality was assessed via post-operative CT scans, and clinical outcomes and complications were evaluated over a minimum of 24-month follow-up.

RESULTS

A total of 110 patients (mean age: 51.3 ± 11.1 years) were included, with an average follow-up of 52.7 ± 16.9 months. The ECO group (n = 56) consisted of more severe injuries, indicated by higher external fixator use (48.2% vs. 22.2%, p = 0.0044) and additional affected segments. Postoperative CT scans revealed that the ECO group had significantly less fracture step-off (0.8 mm vs. 3.0 mm, p = 0.0002) and angulation at the ALC/PLC (8.1° vs. 20.1°, p = 0.0002) segment and PLC/PLL (postero-latero-lateral) (2.2° vs. 7.5°, p = 0.02) segments. Clinically, the ECO group achieved superior IKDC scores (71.7 vs. 63.7, p = 0.0097). A negative correlation was found between postoperative ALC/PLC depression and IKDC scores (r=-0.36, p = 0.0002).

CONCLUSION

Patients treated with ECO had a significantly better clinical and radiologic postoperative outcomes, with the quality of fracture reduction positively correlating with the clinical IKDC score. This was achieved despite more severe injuries, as indicated by higher external fixator use and number of affected segments.

LEVEL OF EVIDENCE

III Retrospective Cohort Study.

TRIAL REGISTRATION

The study was retrospectively registered and conducted according to the guidelines of the Declaration of Helsinki and approved by the local Ethics Committee (PV7319).

Efficacies of different surgical approaches in the treatment of hyperextension tibial plateau fractures

OBJECTIVE

To investigate the clinical efficacies of an anteromedial combined with anterolateral approach versus posteromedial combined with anterolateral approach in the treatment of hyperextension tibial plateau fractures.

METHODS

A retrospective analysis was conducted on the data of 112 patients with hyperextension tibial plateau fractures treated in the Orthopedics Department of No. 215 Hospital of Shaanxi Nuclear Industry from January 2020 to December 2022. The patients were categorized as the control group (anteromedial combined with anterolateral approach, n=62) and the observation group (posteromedial combined with anterolateral approach, n=60) in accordance with the surgical approaches they underwent. Clinical outcomes, surgical time, time needed to be able to undertake weight-bearing activities, Visual Analogue Scale (VAS) pain scores, and the incidence of postoperative complications were compared between the two groups. Knee joint function was assessed using the Hospital for Special Surgery (HSS) knee scoring system. Changes in the posterior tibial slope and varus angles were evaluated using X-ray imaging.

RESULTS

All patients recovered from tibial plateau fractures after treatment, with their knee joint function returning to pre-injury status to a large degree. At 6 months postoperatively, there was no statistically significant difference in HSS knee scores between the two groups (P=0.775). However, at 12 months postoperatively, the HSS knee scores in the control group were significantly lower than those in the observation group (P < 0.001). Additionally, the rate of patients demonstrating excellent or good knee function was significantly lower in the control group than that in the observation group (P=0.041). In terms of pain evaluation, the VAS pain scores of patients were higher in the control group than those in the observation group on days 1 and 3 after surgery (P < 0.001), whereas no statistically significant difference was observed between the two groups on postoperative day 12 (P=0.337). At 6 months postoperatively, the posterior tibial slope angle was larger in the control group than that in the observation group (P < 0.01). The time needed to be able to undertake weight-bearing activities was markedly longer and the varus angle greater in the observation group than those in the control group on the day of surgery (P < 0.01). Lastly, there was no statistically significant difference in the incidence of complications between the two groups (P=0.045).

CONCLUSION

The posteromedial combined with anterolateral approach for treating hyperextension tibial plateau fractures has presented ideal clinical outcomes, reduced patients' pain, and promoted the recovery of their joint function without increasing the incidence of adverse reactions.

Tibial plateau fractures are associated with poor functional outcomes and a low conversion rate to total knee arthroplasty

PURPOSE

The aim of this study was to analyse the functional outcome and the conversion rate to total knee arthroplasty (TKA) after surgically treated tibial plateau fractures (TPF).

METHODS

All patients undergoing surgical treatment of TPF at a single institution between January 2003 and December 2019 were retrospectively reviewed. The Knee injury and Osteoarthritis Outcome Score (KOOS) and Tegner activity scale (TAS) were collected. The conversion rate to TKA was examined 2, 5, 7 and 10 years after surgical treatment of TPF.

RESULTS

Ninety-four patients, with a mean follow-up of 110.6 months (±60.0), were included in the functional outcome assessment. Mean KOOS scores were 75.4 for symptoms, 80.6 for pain, 84.3 for activities of daily living (ADL), 59.5 for sports and 61.3 for QOL. All subscales were significantly lower on the injured side compared with the contralateral leg. Lower KOOS was observed in patients with hardware removal and Schatzker type 5 and 6 injuries. Median TAS was postinjury (4) significantly lower than preinjury (5) (p < 0.001). The conversion rate to TKA was 6.3%, 10.9%, 11.7% and 12.2% after 2,5,7 and 10 years of follow-up, respectively. Patients undergoing TKA were older than patients with no conversion to TKA (2 years follow-up 53.8 vs. 64.5 years, p = 0.026).

CONCLUSION

TPFs decrease the function of the knee when compared with the contralateral side and to the preoperative condition. Bicondylar fractures are associated with worse functional outcomes. A conversion rate to TKA of 12.2% was found at 10 years follow-up.

LEVEL OF EVIDENCE

Level III.

Bicondylar tibial plateau fracture osteosynthesis with double-plate fixation: Similar complication rates and clinical results but improved radiographic outcomes with dual compared to single approach

INTRODUCTION

Associating posteromedial and anterolateral approaches should improve fracture line visualization and optimize bicondylar tibial plateau fracture reduction compared to a single midline approach. The present study aimed to compare postoperative complications rates and functional and radiographic results after double-plate fixation via either a single or a dual approach. The study hypothesis was that double-plate fixation using a dual approach provides equivalent complications rates with improved radiographic results compared to a single approach.

MATERIAL AND METHODS

A retrospective 2-center study compared bicondylar tibial plateau fractures treated by double-plate fixation on a single versus a dual approach between January 2016 and December 2020. Comparison focused on major complications requiring surgical revision, radiographic measurements of medial proximal tibial angle (MPTA) and posterior proximal tibial angle (PPTA); change from their respective baseline values of 87° and 83° (deltaMPTA and deltaPPTA), and functional results on KOOS, SF12 and EQ5D-3L self-reported questionnaires.

RESULTS

Major complications occurred in 2 of the 20 single approach group patients (10%) [1 surgical site infection (SSI) (5%), and 1 skin complication (5%)], and in 3 of the 39 dual approach group patients (7.69%) (p=0.763), at an average 29 months' follow-up. In the sagittal plane, deltaPPTA was significantly lower with dual than single approach (respectively, 4.67° versus 7.43°; p=0.0104). There were no significant intergroup differences in deltaMPTA or functional results at last follow-up.

CONCLUSION

The present study suggests an absence of significant difference in major complications, between single and dual approach for double-plate osteosynthesis of bicondylar tibial plateau fractures. Using a dual approach enabled improved anatomic restoration in the sagittal plane, without significant differences observed in the frontal plane or functional scores at an average 29months' follow-up.

LEVEL OF EVIDENCE

III; case-control study.

Comparison of the intraarticular osteotomy and the "window" osteotomy in the treatment of tibial plateau fracture involving depressed posterolateral fragments

OBJECTIVES

The methods of reduction of depressed posterolateral fragments in tibial plateau fracture through anterolateral approaches remain controversial. This paper aimed to compare the intraarticular osteotomy technique and the "window" osteotomy technique for the reduction of depressed posterolateral fragments through anterolateral approach.

METHOD

From January 2015 to January 2022, we retrospectively reviewed the data on patients with tibial plateau fracture involving depressed posterolateral fragments treated with the intraarticular osteotomy or the "window" osteotomy. 40 patients underwent the intraarticular osteotomy were divided into group A, while 36 patients underwent the "window" osteotomy were divided into group B. The operative time, bone grafting volume, fracture healing time, complication, reduction quality and postoperative functional results were compared between the two groups.

RESULTS

The average follow-up duration was 16.6 ± 3.7 months. The average bone grafting volume for all patients in group B was essential larger than group A (p = 0.001). Compared to group B, patients in groups A had significantly shorter fracture healing time (p = 0.011). The depth of depressed articular surface, PSA and the radiographic evaluation at 2 days and 6 months after surgery in group A were significantly lower than group B (p<0.05). Based on the HSS knee-rating score, no significant difference in function results was found between the two groups (p>0.05). No significant difference was found in operation time and blood loss between the two groups (p>0.05).

CONCLUSION

The intraarticular osteotomy could obtain satisfactory clinical results in tibial plateau fracture involving posterolateral fragments.

Mismatch between Clinical-Functional and Radiological Outcome in Tibial Plateau Fractures: A Retrospective Study

BACKGROUND

The evaluation of tibial plateau fractures (TPF) encompasses the assessment of clinical-functional and radiological parameters. In this study, the authors aimed to investigate the potential correlation between these parameters by utilizing both the clinical-functional and the modified radiological Rasmussen score.

METHODS

In this retrospective monocentric study conducted at a level-I trauma center, patients who underwent surgery between January 2014 and December 2019 due to a TPF were included. The clinical-functional Rasmussen score prior to the injury, at 1-year postoperatively, and during the last follow-up (minimum 18 months) was assessed using a standardized questionnaire. Additionally, the modified radiological Rasmussen score was determined at the 1-year postoperative mark using conventional radiographs in two planes.

RESULTS

A total of 50 patients were included in this study, comprising 40% (n = 20) men, and 60% (n = 30) women, with an average age of 47 ± 11.8 years (range 26-73 years old). Among them, 52% (n = 26) had simple fractures (classified according to Schatzker I-III), while 48% (n = 24; according to Schatzker IV-VI) had complex fractures. The mean follow-up was 3.9 ± 1.6 years (range 1.6-7.5 years). The functional Rasmussen score assessed before the injury and at follow-up showed an "excellent" average result. However, there was a significant difference in the values of complex fractures compared to before the injury. One year postoperatively, both the clinical-functional score and the modified radiological score demonstrated a "good" average result. The "excellent" category was more frequently observed in the functional score, while the "fair" category was more common in the radiological score. There was no agreement between the categories in both scores in 66% of the cases.

CONCLUSIONS

The data from this retrospective study demonstrated that patients with TPF are able to achieve a nearly equivalent functional level in the medium-term after a prolonged recovery period, comparable to their pre-injury state. However, it is important to note that the correlation between clinical-functional and radiological parameters is limited. Consequently, in order to create prospective outcome scores, it becomes crucial to objectively assess the multifaceted nature of TPF injuries in more detail, both clinically and radiologically.

Functional outcomes and quality of life after surgically treated tibial plateau fractures

BACKGROUND

Tibial plateau fractures (TPF) are uncommon and challenging for orthopedic surgeons with controversial reported outcomes. In this study, we aimed to evaluate the functional outcomes and quality of life (QOL) of patients with surgically treated TPF.

METHODS

A total of 80 consecutive patients and 82 controls participated in this case control study. The patients were all surgically treated in our tertiary center from April 2012 to April 2020. The functional outcome was evaluated using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) scale. Moreover, we used the Short Form 36 health survey (SF-36) health survey to evaluate the QOL.

RESULTS

No significant difference was observed in the overall mean SF-36 score in the two groups. We found a significant positive correlation between the scores of the SF-36 and WOMAC questionnaires (r = 0.642, p < 0.001) and between the ROM and the WOMAC questionnaire score (r = 0.478, p < 0.001). Further, ROM and SF-36 showed a weak positive correlation (r = 0.248, p = 0.026). Age had a weak negative correlation with the pain subscale of SF-36 (r = - 0.255, p = 0.22), even though it was not correlated with the total score or other subscales (p > 0.05).

CONCLUSION

QoL after TPF is not significantly different from that of a matched control group. Also, neither age nor BMI correlates with the QoL and functional outcome.

Preoperative Mixed-Reality Visualization of Complex Tibial Plateau Fractures and Its Benefit Compared to CT and 3D Printing

BACKGROUND

Various studies have shown the benefit of three-dimensional (3D) computed tomography (CT) reconstruction and especially 3D printing in the treatment of tibial plateau fractures (TPFs). This study aimed to investigate whether mixed-reality visualization (MRV) using mixed-reality glasses can provide a benefit for CT and/or 3D printing in planning treatment strategies for complex TPFs.

METHODS

Three complex TPFs were selected for the study and processed for 3D imaging. Subsequently, the fractures were presented to specialists in trauma surgery using CT (including 3D CT reconstruction), MRV (hardware: Microsoft HoloLens 2; software: mediCAD MIXED REALITY) and 3D prints. A standardized questionnaire on fracture morphology and treatment strategy was completed after each imaging session.

RESULTS

23 surgeons from 7 hospitals were interviewed. A total of 69.6% (n = 16) of those had treated at least 50 TPFs. A change in fracture classification according to Schatzker was recorded in 7.1% of the cases and in 78.6% an adjustment of the ten-segment classification was observed after MRV. In addition, the intended patient positioning changed in 16.1% of the cases, the surgical approach in 33.9% and osteosynthesis in 39.3%. A total of 82.1% of the participants rated MRV as beneficial compared to CT regarding fracture morphology and treatment planning. An additional benefit of 3D printing was reported in 57.1% of the cases (five-point Likert scale).

CONCLUSIONS

Preoperative MRV of complex TPFs leads to improved fracture understanding, better treatment strategies and a higher detection rate of fractures in posterior segments, and it thus has the potential to improve patient care and outcomes.