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Background To determine patient and surgical factors associated with the use of 360-degree laser retinopexy during primary pars plana vitrectomy (PPV) ± scleral buckle (SB) for rhegmatogenous retinal detachment (RRD) and its impact on surgical outcomes. Methods Patients who underwent PPV ± SB for repair of non-complex RRD at a single centre were included in this retrospective study. The primary outcome was single surgery anatomical success (SSAS). Secondary outcomes included visual acuity, epiretinal membrane formation, the presence of cystoid macular oedema, tonic pupil and corneal epithelial defects. Multiple logistic regression and multivariate regression was used. Results The study included 192 cases, of which 130 received 360-degree laser. Worse preoperative logMAR visual acuity (P = 0.009), male sex (P = 0.060), higher PVR grades, supplemental SB (P = 0.0468) and silicone oil/C3F8 tamponade (P < 0.0001) were associated with 360-degree laser use. No significant associations between 360-degree laser and SSAS (P = 0.079), final logMAR visual acuity (P = 0.0623), ERM development (P = 0.8208), postoperative CMO (P = 0.5946), tonic pupil (P > 0.9999) or corneal epithelial defects (P = N/A) were found. Conclusions 360-degree laser retinopexy during primary PPV ± SB for RRD was associated with more complex cases and more extensive operations. Even when accounting for this, there was no difference in surgical outcomes or complication rates.

Background Burn outcomes can be improved by reducing mortality and hospital admission duration. This increases patient quality of life and reduces hospital‐associated complications and costs. This study aimed to develop a model with which to predict burns inpatient mortality and admission duration. Methods Multiple logistic and linear regression were used to investigate mortality and admission duration by age, total body surface area, sex, delay to presentation, the use of surgery, discharge distance and period. Results One thousand four hundred and seventy nine patients (747 pre‐COVID and 732 during COVID) were admitted between the study dates. Using multiple logistic regression, age and total body surface area predicted mortality LR X2 (5), P < 0.001, pseudo R2 = 0.57. Using multiple linear regression, age, total body surface area and the use of surgery predicted admission duration F (7, 1455) = 161.42, P < 0.001, R2 = 0.44. Sex, delay to presentation, period and discharge distance did not predict mortality or admission duration. Conclusions In our institution, mortality was increased by 8.6% for each additional year of age and by 11.3% for each additional percentage total body surface area. Likewise, admission duration was prolonged by 1 day for every 7 years of increased age, by 1 day for each additional percentage total body surface area or by 7 days if surgery was required. These models have been incorporated into a set of prediction tables for mortality and admission duration for use in our institute that can guide patient and family discussions.

Purpose: Orbital volume increase has been previously linked with post-traumatic enophthalmos. However, this varies and some studies show no correlation. This systematic review and meta-analysis aimed to synthesize the correlation between orbital volume and enophthalmos and to determine if surgical intervention, enophthalmos measurement method, fracture location, or timing affect this correlation. Methods: Automation tools were used to assist in this review of 6 databases. Searches were performed across all dates. Included studies quantitatively reported orbital volume and enophthalmos following traumatic orbital wall fractures in at least 5 adult subjects. Correlational data were extracted or calculated. Random-effects meta-analysis was used with subgroup analyses for each of the secondary aims. Results: Twenty-five articles describing 648 patients were included. The pooled correlation between orbital volume and enophthalmos was r = 0.71 (R 2 = 0.50, P < 0.001). Operative status, enophthalmos measurement method, and fracture location did not affect pooled correlation. The delay between trauma or surgery and enophthalmos measurement was not shown to modulate correlation for unoperated patients (R 2 = 0.05, P = 0.22) but showed a negative relationship for postoperative patients (z = −0.0281, SE = 0.0128, R 2 = 0.63, P = 0.03), but this was heavily influenced by a single article. All results had high residual heterogeneity. Studies were rated as moderate, low, or very low quality with few stating explicit hypotheses or limitations.Conclusions: Bony orbital volume expansion accounts for around 50% of post-traumatic enophthalmos. The other half is probably explained by soft tissue or geometric bony, rather than volumetric, changes.