Bunionectomy as an Acute Postoperative Pain Model: Overview of Common Experimental Methods, and Insights from Past Clinical Trials.

To obtain broad regulatory approval for a new analgesic agent in acute postoperative pain, US and European regulatory authorities require pivotal studies in both hard (bony) tissue pain and soft tissue pain. Bunionectomy is by far the most common hard tissue pivotal trial model, in spite of the fact that the model has limited relevance to clinicians prescribing pain drugs (pain from bunionectomy is not extreme or long-lasting, and is adequately treated by existing drugs). The authors outline the experimental characteristics that make bunionectomy an appealing study model for researchers despite its lack of clinical relevance compared to larger surgeries.

The role of neoadjuvant systemic therapy for high grade upper tract urothelial carcinoma: Results from the upper tract collaborative network (UCAN).

Introduction: Utilization of neoadjuvant systemic therapy (NAT) prior to radical nephroureterectomy (RNU) for upper tract urothelial carcinoma (UTUC) is inconsistent, and optimal patient selection for NAT is unclear. The purpose of this study was to evaluate the clinical benefit of NAT in high grade UTUC undergoing RNU.

Materials And Methods: The UTUC Collaborative Network (UCAN) identified patients who underwent RNU for high grade UTUC between 2000 and 2022.

Management of translocation carcinomas of the kidney.

Microphthalmia-associated transcription factor family translocation renal cell carcinoma (MiT-tRCC) stands out as a rare subtype of kidney cancer with distinct biological features compared to other kidney cancer subtypes. It encompasses TFE3-rearranged RCC (also known as Xp11 translocation RCC) and TFE-rearranged translocations RCC, although multiple new fusion partners were identified. Traditionally thought to primarily affect children and young adults, more cases of MiT-tRCC are being identified in adults.

Primary retroperitoneal lymph node dissection in clinical stage 2a/b non-seminomatous germ cell tumour.

Objectives: To reassess the role of primary retroperitoneal lymph node dissection (RPLND) in patients with marker-negative non-seminomatous germ cell tumour (NSGCT) clinical stage (CS) 2a, to explore results in patients with CS 2b and to evaluate surgical methods, recurrence, and adjuvant chemotherapy indications.

Materials And Methods: Data from 17 institutions were collected, comprising 305 men who underwent primary RPLND for CS 2 NSGCT. Regression analyses were conducted to predict histology in the RPLND specimen and disease-free survival (DFS).