title: Triangle tilt surgery as salvage procedure for failed shoulder surgery in obstetric brachial plexus injury.
abstract: OBJECTIVE
  The study was conducted to review the effects of triangle tilt surgery in children with OBPI (obstetric brachial plexus injury) who had previously undergone several operative procedures at other hospitals before presenting at our institute.
  
  
  METHODS
  The study included a group of 48 OBPI patients who had undergone previous operative procedures at outside hospitals by other surgeons. Patients were assessed for shoulder function using their radiological reports and the modified Mallet functional scale. The same patients underwent the triangle tilt procedure at our institution and were re-evaluated for shoulder function.
  
  
  RESULTS
  The results of the study showed an increase in Mallet scores from 11.88 points to 15.17 points (p < 0.01), improvement in PHHA (percentage of humeral head anterior to the glenoid) from 14% to 25% (p < 0.05), enhancement in glenoid version from -32 degrees to -25 degrees (p < 0.01), and a decrease in the SHEAR (scapular hypoplasia, elevation, and rotation) deformity after surgery.
  
  
  CONCLUSIONS
  The data obtained demonstrated that the triangle tilt procedure significantly enhanced shoulder function and glenohumeral congruity in these patients as evidenced by the improvements in Mallet scores, PHHA, glenoid version, and SHEAR deformity.
authors.affiliation: Texas Nerve and Paralysis Institute, Houston, TX 77030, USA. drnath@drnathmedical.com
authors.forename: Rahul K
authors.initials: RK
authors.lastname: Nath
authors.forename: Meera B
authors.initials: MB
authors.lastname: Avila
authors.forename: Priyanka
authors.initials: P
authors.lastname: Karicherla
mesh_terms: D001720:Birth Injuries / Q000503:physiopathology* / Q000601:surgery; D001917:Brachial Plexus / Q000293:injuries*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D019635:Neurosurgical Procedures / Q000379:methods*; D011247:Pregnancy; D016059:Range of Motion, Articular / Q000502:physiology; D012189:Retrospective Studies; D012399:Rotation; D016879:Salvage Therapy; D012783:Shoulder Dislocation / Q000000981:diagnostic imaging / Q000601:surgery; D000070599:Shoulder Injuries; D012785:Shoulder Joint / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D013484:Supination; D014057:Tomography, X-Ray Computed