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Biomedical subjects

Michael J Pagnani

Publications and source records attributed to Michael J Pagnani.

3 recordsLinked to original sources

Hamstring tendon harvesting. Reviewing anatomic relationships and avoiding pitfalls.

The gracilis and semitendinosus tendons remain popular grafts for many reconstructive procedures, including anterior cruciate ligament reconstruction. Surgeons who use other grafts for ACL reconstruction should have the hamstring tendon techniques in their arsenal in the event other grafts are unavailable or undesirable. Detailed knowledge of the anatomy of the medial side of the knee is paramount to avoid potential pitfalls and ensure a successful tendon harvest.

Anterior Cruciate Ligament↗

Surgical treatment of traumatic anterior shoulder instability in american football players.

BACKGROUND: American football players have been reported to be at high risk for postoperative instability after arthroscopic stabilization of anterior shoulder instability. While some authors have recommended open methods of stabilization in athletes who play contact sports, there are few data in the literature showing more favorable results with use of an open technique. We reviewed the results of an open technique of anterior shoulder stabilization in fifty-eight American football players after a minimum of two years of follow-up. METHODS: Fifty-eight American football players underwent open stabilization with use of a standardized technique for the treatment of recurrent anterior shoulder instability. Forty-seven patients had recurrent dislocations, and the remaining eleven had recurrent subluxations. The average age of the patients was 18.2 years, and the average duration of follow-up was thirty-seven months. Patients were evaluated according to the shoulder scoring system of the American Shoulder and Elbow Surgeons and with use of the shoulder instability score described by Rowe and Zarins. RESULTS: There were no postoperative dislocations. Postoperative subluxation occurred in two patients, neither of whom had had a dislocation prior to the operation. Forward flexion and external rotation returned to within 5 of those of the contralateral shoulder in forty-nine patients. The average score according to the system of the American Shoulder and Elbow Surgeons was 97.0 points, and the average Rowe and Zarins score was 93.6 points. Fifty-five patients had a good or excellent result, and fifty-two of the fifty-eight returned to playing football for at least one year. One patient was forced to stop playing because of recurrent instability. CONCLUSIONS: Open stabilization is a predictable method of restoring shoulder stability in American football players while maintaining a range of motion approximating that found after arthroscopic stabilization. Postoperative stability appears to be superior to that reported after arthroscopic techniques in this population of patients.

Adolescent↗

Painful os acromiale (or unfused acromial apophysis) in athletes.

Twelve male competitive athletes (fourteen shoulders) presented with persistent shoulder pain that interfered with athletic participation. Patient ages ranged from 18 to 25 years. Symptoms included impingement-like pain with overhead activity and weightlifting. Local tenderness was present over the acromion near the same coronal plane as the posterior border of the clavicle. In each case, plain radiographs revealed the presence of an unfused anterior meso-acromial fragment. Magnetic resonance images were obtained in 5 shoulders and revealed edema at the junction of the anterior acromial fragment and the body of the acromion. Nine patients (eleven shoulders) were treated with arthroscopic excision of the anterior acromial fragment. They were followed up for a minimum of 2 years after the procedure. All surgically treated patients were able to return to full athletic participation by 14 weeks after surgery. Isokinetic testing at the latest follow-up revealed no significant deficits in abduction, internal rotation, or external rotation strength compared with the opposite side.

Acromion↗