Abstract：
:Fourteen patients with Stage II or III impingement syndrome (average age 58 years) were studied. Nine patients had full-thickness rotator cuff tears documented by arthrograms. Patients initially underwent a thorough shoulder examination followed by baseline isokinetic strength testing. Abduction/adduction testing was performed utilizing a Biodex dynamometer. Maximum concentric contractions were performed, and values for peak torque (PT), total work (W), and power (P) were obtained. All patients received a subacromial injection of 5 cc 1% lidocaine plus 5 cc 0.5% bupivacaine (Marcaine). After 5 minutes the testing sequence was repeated. Clinically, patients demonstrated marked improvement following injection. Eighty-six percent reported complete pain relief; the remaining two patients reported only mild discomfort at the extremes of motion. Improvement in functional activity of the affected shoulder was noted by all subjects. On manual muscle testing, 13 of 14 patients (93%) demonstrated increased abduction strength; 11 of 14 (79%) had improvement in external rotation. Mean increases in active forward elevation and external rotation were 36 degrees and 11 degrees, respectively (P < .01). Postinjection isokinetic changes in PT, W, and P for abduction/adduction were dramatic. For abduction, all patients showed significant increases in P (mean 82%), W (mean 90%), and PT (mean 48%) (all P < .05). No significant differences in range of motion testing or strength parameters were noted based on the presence or absence of a rotator cuff tear. For adduction, all patients showed significant increases in P (mean 208%), W (mean 183%), and PT (mean 41%) (all P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Orthopedicsjournal_title
Orthopedicsauthors
Ben-Yishay A,Zuckerman JD,Gallagher M,Cuomo Fsubject
Has Abstractpub_date
1994-08-01 00:00:00pages
685-8issue
8eissn
0147-7447issn
1938-2367journal_volume
17pub_type
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