Free Fracture Fragment Predicts Poorer Outcomes in Adolescents With Delbet II Femoral Neck Fracture

Long-term outcome of robotic-guided closed reduction internal fixation for Delbet II femoral neck fractures in children

OBJECTIVE

To retrospectively analyze and assess the long-term effectiveness of robotic navigation and traditional closed reduction internal fixation in the treatment of Delbet type II femoral neck fracture in children.

METHODS

A total of fifty-five patients diagnosed with pediatric Delbet type II femoral neck fracture, who were admitted to Foshan Hospital of Traditional Chinese Medicine between January 2018 and June 2022, were included in this study. Among them, 22 cases of nailing under robotic navigation were set as the observation group, and 33 cases of nailing under fluoroscopy of the C-arm machine were set as the control group. All patients had their femoral neck fractures closed and repositioned first. After confirming the satisfactory fracture repositioning under the fluoroscopic view of the C-arm machine, internal fixation was performed by inserting hollow compression screws in the corresponding surgical way.A comparative analysis was conducted between the two groups to assess the disparity in the amount of X-ray exposure during surgery, the number of guide pins inserted, and the duration of the surgical procedure. The quality of comparative fracture reduction was assessed according to the Haidukewych criteria on the first postoperative hip X-ray, and the parallelism and distribution of the comparative screws were measured. The incidence of hip function and postoperative complications according to the Ratliff criteria were evaluated between each of the subgroups at the final follow-up.

RESULTS

Comparison of general information, operation duration, and quality of fracture reduction between the two groups failed to reveal statistically significant results (P > 0.05). The observation group had a lower number of X-ray exposures and guide pin placements compared to the control group, and this difference was statistically significant (P < 0.05).At the last follow-up, the observation group exhibited superior screw parallelism and distribution, as well as hip joint function, compared to the control group, and this difference was statistically significant (P < 0.05). The incidence of complications in the observation group was lower than that in the control group; however, the difference was not statistically significant (P > 0.05).

CONCLUSION

Closed reduction and internal fixation under orthopedic robot navigation can achieve better long-term efficacy in treating Delbet type II femoral neck fracture in children.

Is there an alternative to the Delbet-Colonna classification? Introduction and reliability assessment of a new classification system for paediatric femoral neck fractures: preliminary results

PURPOSE

The purpose of this study was to introduce a new classification system for paediatric femoral neck fractures (PFNFs) and to evaluate its reliability.

METHODS

Two hundred and eight unilateral PFNFs (mean patient age: 9.0 ± 4.8 years) were included. Based on preoperative radiographs, the new classification system distinguished PFNFs without anterior or posterior translation (Type I), PFNFs with anterior (Type II) or posterior (Type III) translation, PFNFs with a comminuted medial or posterior column (Type IV), and subtrochanteric femoral fractures (SFFs; Type V). Radiographs were evaluated twice with an interval of two weeks by 19 raters with different specialties, experiences and geographical origins. The results were compared with a selection of 50 patient age-matched unilateral PFNFs and SFFs (mean patient age: 9.1 ± 4.9 years). These were graded twice by the same graders according to the Delbet-Colonna (D-C) classification.

RESULTS

Four radiologists and 15 paediatric orthopaedic surgeons from Europe and Asia graded the radiographs. Fair agreement was found between radiologists (κ = 0.296 ± 0.01) and surgeons (κ = 0.3 ± 0.005) (P = 0.17), although more experienced surgeons performed better than less experienced ones; a similar fair assessment was found for raters from Europe (κ = 0.309 ± 0.021) and Asia (κ = 0.3 ± 0.006) and for type II, III and IV fractures; the κ value in the first evaluation (0.309) was similar to that in the second evaluation (0.298). The overall κ value of the D-C classification subtypes was significantly higher (0.599 ± 0.217) than that of the new classification, 0.326 ± 0.162 (t = 3.190 P = 0.005).

CONCLUSIONS

The new classification system showed fair reliability relative to the D-C classification. The reliability of the new classification system was not affected by the specialty or geographic origin of the rater or the evaluation round, only by rater experience level. The concordance was worse for PFNFs with anterior or posterior translation or with a comminuted medial or posterior columns.

The outcome of loose bone fragments in pediatric supracondylar humerus fractures: a retrospective study

We evaluated the clinical and imaging outcomes of loose bone fragments in children with supracondylar humerus fractures after closed reduction with percutaneous pin (CRPP) fixation. A retrospective review was conducted on 12 children with fragments on imaging after closed reduction of displaced humeral supracondylar fractures (Gartland III). Primary radiographic assessment included fragment outcome, postoperative Baumann angle, carrying angle and loss of reduction. Clinical outcome included the elbow range of motion (ROM), Flynn grade and other complications. Between January 2015 and January 2018, 460 children (2-14 years old) with supracondylar humerus fractures were treated at our center, including 12 (2.6%) with loose bone fragments on postoperative X-ray. Union or absorption of fragments was noted in all 12 patients at 1 year postoperatively, with good radiographic and clinical outcomes. The mean Baumann angle was 15.5° ± 4.3° and the mean carrying angle was 11.2° ± 2.8°. All patients had a normal elbow ROM. Ten patients achieved an excellent and two a good result according to the Flynn criteria. Good results were achieved after CRPP fixation in 12 children with supracondylar humerus fractures and loose bone fragments. The fragments were mainly absorbed or achieved union to the humerus within 1 year.

What Drives High Costs of Cytoreductive Surgery and HIPEC: Patient, Provider or Tumor?

INTRODUCTION

Cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) is utilized for peritoneal malignancies and is associated with significant resource use. To address potentially modifiable factors contributing to excessive cost, we sought to determine predictors of high cost of care for patients undergoing CRS/HIPEC.

METHODS

An institutional CRS/HIPEC database was queried for adult patients from 2014 to 2018. Cost was defined as cost for the index hospitalization, and high-cost cases were defined as > 75th percentile for cost. Bivariate analyses for cost were performed, and all significant tumor, patient, and surgeon-specific variables were entered in a linear regression for cost. A separate linear regression was performed for length of stay (LOS).

RESULTS

In total, 59 patients underwent 61 CRS/HIPEC procedures. The median direct variable cost was $20,509 (16,395-25,240). Median length of stay (LOS) was 8 (7-11.5) days and ICU stay was 1 (1-1.5) day. LOS, length of ICU stay and operative time were predictive of cost. Factors associated with increased LOS were Clavien-Dindo grade II complications and ostomy creation. Patient-related factors, including age and BMI, tumor-related factors, such as PCI and CCR, and surgeon were not predictive of cost nor LOS.

DISCUSSION

Our results, the first to identify predictors of high cost of CRS/HIPEC-related care in the US, reveal cost was largely related to length and intensity of care. In turn, these drivers were influenced by complications and operative factors. Future work will focus on identifying an appropriate ERAS protocol following CRS/HIPEC and selection of those patients that may avoid routine ICU admission.