Objective: To evaluate the fatty infiltration and atrophy of the supraespinatus in the pre- and postoperative of a rotator cuff lesion (RCL), by MRI. Methods: Ten patients with full-thickness rotator cuff tears who had undergone surgical arthroscopic rotator cuff repair between September and December 2011 were included. This is a prospective study, with analysis and comparison of fatty infiltration and atrophy of the supraespinatus. The occupation ratio was measured using the magic selection tool in Adobe Photoshop CS3(r) on T1 oblique sagittal Y-view MRI. Through Photoshop, the proportion occupied by the muscle belly regarding its fossae was calculated. Results: There was a statistically significant increase in the muscle ratio (p=0.013) comparing images pre and postoperative, analyzed by the Wilcoxon T test. Conclusion: The proportion of the supraspinal muscle above the pit increases in the immediate postoperative period, probably due to the traction exerted on the tendon at the time of repair. Level of Evidence II, Cohort Study.

Objective To compare the chronological age and bone age among cerebral palsy patients in the outpatient clinic and its correlation with the type of neurological involvement, gender and functional status. Methods 401 patients with spastic cerebral palsy, and ages ranging from three months to 20 years old, submitted to radiological examination for bone age and analyzed by two independent observers according Greulich & Pyle. Results In the topographic distribution, there was a significant delay (p<0.005) in tetraparetic (17.7 months), hemiparetic (10.1 months), and diparetic patients (7.9 months). In the hemiparetic group, the mean bone age in the affected side was 96.88 months and the uncompromised side was 101.13 months (p<0.005). Regarding functional status, the ambulatory group showed a delay of 18.73 months in bone age (p<0.005). Comparing bone age between genders, it was observed a greater delay in males (13.59 months) than in females (9.63 months), but not statistically significant (p = 0.54). Conclusion There is a delay in bone age compared to chronological age influenced by the topography of spasticity, functional level and gender in patients with cerebral palsy. Level of Evidence IV, Case Series.

Objective In this study we aim at statistically evaluating the results of the surgical treatment of the osteoarthrosis of the shoulder (OAS) with partial shoulder arthroplasty (PSA) and at correlating them with the several variables involved. Methods In this study we evaluated 36 shoulders of 31 patients with OAS who underwent treatment with PSA in the Grupo de Ombro e Cotovelo (Group of Shoulders and Elbows) of the Department of Traumatology and Orthopedics of the Faculdade de Ciências Médicas da Santa Casa de São Paulo – Pavillion Fernandinho Simonsen between January, 1989 and November, 2010. Patients who underwent PSA and who had a post-operative follow-up of at least 12 months were included in the study. Results ’ After the surgery the range of elevation, external rotation, internal rotation and the UCLA scale improved (with average differences of 35̊, 27̊, 4̊ and 17 points, respectively), with a significant level of 5% (p < 0.05). For the same level of significance, the relation between a satisfactory UCLA and two variables was found: patients with maximum age of 60 years old at the moment of the surgery and patients that underwent tenotomy of the long head of biceps. Conclusion Patients under 60 who underwent surgery and patients who underwent tenotomy of the long head of biceps achieved better results.

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