title: [Symptomatic lumbar incisional hernia after open nephrectomy: What are the risk factors?].
abstract: OBJECTIVE
  Lumbar incisional hernias after open nephrectomy are rare but can lead to aesthetic disorder, discomfort or intestinal obstruction. The aim of the study is to highlight their risk factors.
  
  
  METHODS
  The characteristics of patients who suffered from symptomatic and surgically treated lumbar incisionnal hernia after open nephrectomy (study group "GE") were compared to those of patients who underwent open nephrectomy without postoperative incisional hernia (control group "GT") using the Student's t test and Mann-Whitney test (statistical significance P value<0.05). GT patients were randomly selected with a 1/4 ratio (1 lumbar incisionnal hernia vs 4 controls).
  
  
  RESULTS
  From 2004 to 2014, 417 open nephrectomies were performed in one university hospital. Forty-five patients were included: 9 in GE and 36 in GT. There was no statistically significant difference between GT and GE for weight, height, body mass index (BMI), emergency, partial nephrectomy, laterality, rib resection, laparoscopic conversion to open surgery, postoperative complications, smoking, diabetes mellitus, cardiovascular history, obesity and sex, but there was a statistically significant difference for age, operative time, chronic obstructive pulmonary disease (COPD) and severe obesity (BMI>35) with, respectively, P=0.05, P=0.02, P=0.04 and P=0.02.
  
  
  CONCLUSIONS
  Risk factors for lumbar incisional hernia after open nephrectomy are age, operative time, severe obesity and COPD.
  
  
  METHODS
  5.
authors.affiliation: Service d'urologie et d'andrologie, hôpital Robert-Debré, CHU de Reims, avenue du Général-Koenig, 51092 Reims cedex, France. Electronic address: cmarchand@chu-reims.fr.
authors.forename: C
authors.initials: C
authors.lastname: Marchand
authors.affiliation: Service de chirurgie générale, digestive et endocrinienne, CHU de Reims, avenue du Général-Koenig, 51092 Reims cedex, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Renard
authors.affiliation: Service de chirurgie générale, digestive et endocrinienne, CHU de Reims, avenue du Général-Koenig, 51092 Reims cedex, France.
authors.forename: C
authors.initials: C
authors.lastname: Avisse
authors.affiliation: Service de chirurgie générale, digestive et endocrinienne, CHU de Reims, avenue du Général-Koenig, 51092 Reims cedex, France.
authors.forename: J-P
authors.initials: JP
authors.lastname: Palot
authors.affiliation: Service d'urologie et d'andrologie, hôpital Robert-Debré, CHU de Reims, avenue du Général-Koenig, 51092 Reims cedex, France.
authors.forename: S
authors.initials: S
authors.lastname: Larre
mesh_terms: D017677:Age Distribution; D000368:Aged; D015992:Body Mass Index; D016022:Case-Control Studies; D005260:Female; D005500:Follow-Up Studies; D006785:Hospitals, University; D006801:Humans; D000069290:Incisional Hernia / Q000209:etiology* / Q000601:surgery; D010535:Laparoscopy / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000009:adverse effects* / Q000379:methods; D009765:Obesity / Q000150:complications; D061646:Operative Time; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects; D016896:Treatment Outcome
keywords: Complications; Facteurs de risque; Hernia; Hernie; Nephrectomy; Néphrectomie; Postoperative period; Période postopératoire; Risk factors