PurposeUntreated complete obstetric brachial plexus injury (COBPI) usually results in limited spontaneous recovery of shoulder function. Older methods used to treat COBPI have had questionable success, with very few studies being published. The purpose of the current study was to examine the results of triangle tilt surgery on shoulder function and development in COBPI individuals.MethodsThis study was conducted as a retrospective chart review. Inclusion criteria were COBPI patients that had undergone the triangle tilt procedure from 2005 to 2009 and were between the ages of 9 months and 12 years. COBPI was defined as permanent injury to all five nerve roots (C5–T1), with significant degradation in development and function of the hand. Twenty-five patients with a mean age of 5 (0.75–12) years were followed up clinically for more than 2 years.ResultsThe triangle tilt procedure resulted in demonstrable clinical enhancements with appreciable improvements in shoulder function, glenoid version, and humeral head congruity. There was a significant increase in the overall Mallet score (2.4 points, p < 0.0001) following surgical correction in patients that were followed up for more than 2 years.ConclusionsThe results of this study demonstrate that COBPI patients who develop SHEAR and medial rotation contracture deformities can benefit from the triangle tilt surgery, which improves shoulder function and anatomy across a range of pediatric ages. Despite these patients presenting late for surgery in general (5 years), significant improvements were observed in their glenohumeral (GH) dysplasia and their ability to perform shoulder and arm movements following surgery.

PurposeThe 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.MethodsThe 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.ResultsThe 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° to −25° (p < 0.01), and a decrease in the SHEAR (scapular hypoplasia, elevation, and rotation) deformity after surgery.ConclusionThe 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.

Background:The benefits of triangle tilt surgery in children with OBPI have been previously validated through measurements of statistical improvements in Mallet scores and in glenohumeral congruity. The purpose of the current study was to evaluate the effectiveness of triangle tilt surgery through the application of the Pediatric Outcomes Data Collection Instrument, a well validated questionnaire designed to evaluate function and comfort in children with musculoskeletal disorders.Methods:OBPI patients between 2 and 10 years of age who came to our institute for routine office visits between May 2009 and October 2009 were considered to participate in the study. Among the patient group, the first 130 completed surveys who met the study criteria were included in the study. The Pediatric Outcomes Data Collection Instrument was completed by the parents of patients who have undergone triangle tilt surgery (Group 1: N=63) or those who were considered candidates for this procedure (Group 2: N=67). The results were compared between the two patient groups and analyzed using the unpaired student’s t-test. Later, 23 patients from the group 2, underwent triangle tilt surgery (Group 3). We collected post-op data, compared and analyzed the outcome of the surgery in these patients to their own pre-op PODCI scores, using the paired student’s t test.Results:In patients who have undergone triangle tilt surgery, significantly higher PODCI scores were observed in the parameters of upper extremity function (p<0.05), sports/physical function (p<0.05), basic mobility (p<0.0001) and global functioning (p<0.05), when compared to patients who have not undergone triangle tilt surgery. Further, PODCI scores in group 3 patients were significantly higher after surgery in the parameters of upper extremity function (p <0.03), Pain/Comfort (p <0.05), basic mobility (p<0.0002) and global functioning (p<0.03), when compared to before triangle tilt surgery.Conclusion:The results of the Pediatric Outcomes Data Collection Instrument demonstrate the functional benefits of triangle tilt surgery in patients with obstetric brachial plexus injury.