title: Ultrasound-guided mechanical fragmentation of sialoliths (sonoguide forceps).
abstract: BACKGROUND
  Little data about the efficacy and limitations of ultrasound-guided mechanical intraductal stone fragmentation and removal of sialoliths (Sonoguide Forceps) exist.
  
  
  METHODS
  This was a chart review of patients treated within the last 4 years at 2 tertiary care centers.
  
  
  RESULTS
  Sonoguide Forceps were used as a second-line treatment in 22 patients with sialolithiasis. Ten patients were free of stones and symptoms afterwards (7 of 17 submandibular, 2 of 4 parotid, 1 of 1 sublingual). Six patients were primarily treated for parotid sialolithiasis, 4 with successful stone retrieval. The reasons for failure were a lack of accessibility to the stone by the forceps (n = 9), the impossibility of grasping the stone (n = 5), and/or the concomitant grabbing of soft tissue together with the stone (n = 3).
  
  
  CONCLUSIONS
  The efficacy of Sonoguide Forceps as both a secondary and primary treatment modality makes it an interesting, simple, and inexpensive therapeutic alternative. Relevant parameters for treatment success include the size and position of the stones.
authors.affiliation: Department of Otorhinolaryngology, Hospitals of the City of Cologne, Cologne, Germany.
authors.forename: Urban W
authors.initials: UW
authors.lastname: Geisthoff
authors.forename: Steffen
authors.initials: S
authors.lastname: Maune
mesh_terms: D006801:Humans; D015494:Salivary Gland Calculi / Q000000981:diagnostic imaging / Q000628:therapy*; D013525:Surgical Instruments; D018084:Ultrasonography, Interventional / Q000295:instrumentation