title: Supraomohyoid neck dissection and modified radical neck dissection for clinically node-negative oral squamous cell carcinoma: a prospective study of prognosis, complications and quality of life.
abstract: BACKGROUND
  To assess the prognosis and morbidity between supraomohyoid neck dissection (SOND) and modified radical neck dissection (MRND) for oral squamous cell carcinoma (OSCC) in patients with a clinically node-negative neck (cN0).
  
  
  METHODS
  This prospective randomized study began in June 1999, and patient accrual concluded in May 2010. The cN0 neck was confirmed on clinical palpation by senior doctors. Ultimately, there were 322 patients recruited into the study.
  
  
  RESULTS
  Patient demographics were well balanced between the two groups. There were 10 patients in the SOND group and 21 patients in the MRND group who developed nodal recurrence without associated local recurrence or distant metastasis. The 3-year neck control rate (NCR) rate was 92.6% for the SOND group and 87.5% for the MRND group (in favor of SOND, P = 0.108). There was no significant difference between the SOND group and the MRND group in the 3-year disease-specific survival (DSS) rate (79.0% vs. 76.9%, P = 0.659). Importantly, there were significantly fewer complications in the SOND group compared with the MRND group (13.0% vs. 21.9%, P = 0.040). The disease-free survivors in the SOND group also reported better pain relief (P = 0.013) and shoulder function (P < 0.001) than those in the MRND group one year after treatment.
  
  
  CONCLUSIONS
  We recommend SOND as a priority treatment for cN0 OSCC patients.
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China. Electronic address: guodazuo@sina.com.
authors.forename: Chuan Bin
authors.initials: CB
authors.lastname: Guo
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Zhien
authors.initials: Z
authors.lastname: Feng
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Jian Guo
authors.initials: JG
authors.lastname: Zhang
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Peng
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Zhi Gang
authors.initials: ZG
authors.lastname: Cai
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Chi
authors.initials: C
authors.lastname: Mao
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Guang Yan
authors.initials: GY
authors.lastname: Yu
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Jian Nan
authors.initials: JN
authors.lastname: Li
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Li Xuan
authors.initials: LX
authors.lastname: Niu
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000556:secondary / Q000601:surgery*; D002423:Cause of Death; D018572:Disease-Free Survival; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008207:Lymphatic Metastasis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000601:surgery*; D037981:Neck Dissection / Q000379:methods*; D009334:Neck Muscles / Q000601:surgery*; D009367:Neoplasm Staging; D010147:Pain Measurement; D011183:Postoperative Complications; D011379:Prognosis; D011446:Prospective Studies; D011788:Quality of Life; D011879:Radiotherapy Dosage; D018714:Radiotherapy, Adjuvant; D016879:Salvage Therapy; D012785:Shoulder Joint / Q000502:physiology; D013530:Surgical Wound Infection / Q000209:etiology; D016896:Treatment Outcome
keywords: Complication; Neck dissection; Oral squamous cell carcinoma; Prognosis; Quality of life