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Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_9 | Pages 109 - 109
1 May 2016
Papapietro N Di Martino A Marinozzi A Cancilleri F Denaro V
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Introduction

One of the major concerns in the use of modular hip prostheses is the structural failure of one or more components of the prosthesis, with total mechanical failure. In literature there are sporadic cases of breakage of the prosthetic neck in patients with high functional demand.

Material and methods

In our experience we have implanted a model of modular hip prostheses in 38 patients. In 17 of these patients it was implanted a neck made of titanium alloy, while in the remaining 21 was utilised a CrCo neck. In 5 of the 17 patients with neck titanium it has been a spontaneous rupture of the neck in a time ranging from 12 to 24 months. We proceeded with the replacement of the titanium neck with similar neck made of CrCo alloy in 5 patients with failed neck, and we decided to call the remaining 12 patients with titanium neck, offering them the revision of the system. All patients accepted the revision surgery.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_II | Pages 271 - 271
1 May 2009
Franceschi F Longo U Ruzzini L Rizzello G Marinozzi A Denaro V
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Aims: The aim of this study was to analyze the morphological features of the human surgical specimens of normal supraspinatus tendon from patients with rotator cuff tears and glenohumeral instability.

Methods: 41 subjects were recruited for the study. 20 subjects (group 1) sustained a rotator cuff tear and proceeded arthroscopic repair of the lesion. 21 subjects (group 2) underwent surgery due to glenohumeral instability. During surgery, under arthroscopic control, a full thickness supraspinatus tendon biopsy was harvested in the middle portion of the tendon. All slices were processed for histological analysis

Results: On surgical specimens of supraspinatus tendon from patients with rotator cuff tears, but not from patients with instability, we found increased preponderance of hyaline degeneration, fibrocartilaginous or chondroid metaplasia, calcification, lipoid degeneration, mucoid or myxoid.

Degenerative changes were more evident on the articular side of the rotator cuff.

Conclusions: The present study provides a description of the histological architecture of human surgical specimens of normal supraspinatus tendon from patients with rotator cuff tears. Preexisting degenerative change in the supraspinatus tendon seems to be the main cause of rotator cuff tears.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_II | Pages 275 - 275
1 May 2009
Franceschi F Longo U Ruzzini L Rizzello G Marinozzi A Denaro V
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Aims: We reviewed our experience to determine the results of arthroscopic repair in patients over 50 with rotator cuff tears and Type II SLAP lesion in whom the repair was effected repairing the two lesions, or repairing the rotator cuff tears and performing a tenotomy of the long head of the biceps.

Methods: We recruited 121 patients older than 50 years in whom a symptomatic rotator cuff tear had failed non-surgical management and was affecting daily activities.

We assigned them retrospectively to one of the two groups: Group 1 underwent arthroscopic repair of the rotator cuff and repair of the type II SLAP lesion. Group 2 underwent arthoscopic repair of the rotator cuff tear and a tenotomy of the long head of the biceps.

Results: There was statistically significant difference in total postoperative UCLA scores and ROM when comparing the two groups postoperatively (P< 0.05).

Conclusions: We compared the clinical outcome of patients over 50 affected by the association of rotator cuff tears and Type II SLAP lesion, in whom both the defects were repaired, or the rotator cuff tear was repaired and the long head of the biceps tendon was tenotomized. In our hands, the association of rotator cuff repair and biceps tenotomy provides better clinical outcome compared with the association of Type II SLAP lesion repair and rotator cuff repair at three years of follow-up.