Robot-assisted laparoscopic pyeloplasty is a valid option for ureteropelvic junction obstruction repair in adults with congenital renal abnormalities: a case series study.

Background: Congenital renal anomalies are rare but may be associated with obstruction of the ureteropelvic junction. Given the rarity of simultaneous ureteropelvic junction obstruction [UPJO] and renal anomalies in the adult population, there is limited literature on approaching these patients. We report our experience with robotic assisted laparoscopic pyeloplasty for UPJO repair in this subset of patients.

Outcomes of robotic-assisted pyeloplasty in symptomatic versus asymptomatic patients.

Objective: To evaluate the outcome of robotic-assisted laparoscopic pyeloplasty (RAP) in symptomatic patients with ureteropelvic junction obstruction (UPJO) versus patients who were incidentally found to have UPJO.

Methods: We retrospectively reviewed the records of 141 patients who underwent RAP at Massachusetts General Hospital between 2008 and 2020. Patients were categorized into symptomatic group and asymptomatic group.

Structural features of subchondral bone cysts and adjacent tissues in hip osteoarthritis.

Objective: Focal lesions within the subchondral bone, termed subchondral bone cysts (SBCs), are clinically accepted radiographic markers of advanced osteoarthritis (OA), but their etiology in the hip is not well understood.

Design: This study used micro-computed tomography (μCT), and histological and immunocytological analysis to examine the prevalence, size, location, and morphological and cellular features of SBCs found within 34 femoral heads (14 male, 20 female; age range = 43-80 years) obtained from total hip arthroplasty procedures.

Results: SBCs were common-present in 91% of the femoral heads examined-and frequently commuted with the surface of the femoral head, but otherwise showed no preferred anatomical location.