1.Failure of Dermal Allograft Repair of Massive Rotator Cuff Tears in Magnetic Resonance Imaging and Clinical Assessment
Conor James Craig GOUK ; Ryan Mark SHULMAN ; Craig BUCHAN ; Michael John Evan THOMAS ; Fraser James TAYLOR
Clinics in Orthopedic Surgery 2019;11(2):200-207
BACKGROUND: Massive retracted rotator cuff tears represent a therapeutic dilemma, particularly in the young and middle-aged patients who are not appropriate for a reverse total shoulder replacement. Interposition grafting using human dermal allograft offers an alternative treatment. METHODS: A retrospective review of all patients who underwent interposition grafting using human dermal allograft between December 2013 and May 2015 for massive rotator cuff tears at our tertiary referral center was performed. Preoperative and 6 month postoperative magnetic resonance imaging (MRI) assessments were performed in all patients, with postoperative graft integrity being the primary outcome measure. Clinical evaluation was performed using the Oxford shoulder score, Constant score, and Disabilities of the Arm, Shoulder and Hand (DASH) score. RESULTS: The mean age at the time of follow-up was 54 years. On MRI, 84% of grafts were seen to have failed at 6 months. Strength was grossly reduced on the operative side when supraspinatus and subscapularis were tested; despite this, Constant score (mean, 48.2) was comparable to that in the previous reports. DASH and Oxford scores were a mean of 24.94 and 37.16, respectively. CONCLUSIONS: Based on these results, in particular the MRI findings, we cannot advocate the use of dermal allograft as an interposition graft for the repair of massive rotator cuff tears.
Acellular Dermis
;
Allografts
;
Arm
;
Follow-Up Studies
;
Hand
;
Humans
;
Magnetic Resonance Imaging
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Outcome Assessment (Health Care)
;
Retrospective Studies
;
Rotator Cuff
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Shoulder
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Surgical Procedures, Operative
;
Tears
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Tertiary Care Centers
;
Transplants
2.Blood Management Strategies in Total Knee Arthroplasty
David LIU ; Michael DAN ; Sara MARTINEZ MARTOS ; Elaine BELLER
The Journal of Korean Knee Society 2016;28(3):179-187
A perioperative blood management program is one of a number of important elements for successful patient care in total knee arthroplasty (TKA) and surgeons should be proactive in its application. The aims of blood conservation are to reduce the risk of blood transfusion whilst at the same time maximizing hemoglobin (Hb) in the postoperative period, leading to a positive effect on outcome and cost. An individualized strategy based on patient specific risk factors, anticipated blood loss and comorbidities are useful in achieving this aim. Multiple blood conservation strategies are available in the preoperative, intraoperative and postoperative periods and can be employed in various combinations. Recent literature has highlighted the importance of preoperative Hb optimization, minimizing blood loss and evidence-based transfusion guidelines. Given TKA is an elective procedure, a zero allogenic blood transfusion rate should be the aim and an achievable goal.
Arthroplasty
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Arthroplasty, Replacement, Knee
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Blood Transfusion
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Bloodless Medical and Surgical Procedures
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Comorbidity
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Humans
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Knee
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Patient Care
;
Postoperative Period
;
Risk Factors
;
Surgeons
3.Effect of Galantamine on Caregiver Time and Activities of Daily Living in Mild to Moderate Alzheimer's Disease: A 1-Year Prospective Study.
Guk Hee SUH ; Hee Yeon JUNG ; Chang Uk LEE ; Sang Kyu LEE ; Nam Jin LEE ; Jae Hyun KIM ; Baik Seok KEE ; Dae Gwan KO ; Young Hoon KIM ; In Ja HONG ; Sungku CHOI ; Michael GOLD
Journal of the Korean Geriatrics Society 2007;11(2):74-82
OBJECTIVE: This study aims to investigate the effect of galantamine on caregiver time and activities of daily living(ADLs) in patients with mild to moderate Alzheimer's disease(AD) in a Korean population. DESIGN: Quasi-experimental study: A rndomized, double-blind, parallel-group clinical trial and a naturalistic longitudinal community study METHOD: For this 1-year prospective study, 138 patients residing in the community were recruited(baseline MMSE score of. 10-22). The two groups were composed of 72 patients treated with galantamine and 66 patients selected as the control group from an untreated community cohort of AD patients. The primary efficacy outcome was the caregiver time and the secondary efficacy measure was the Korean version of the Disability Assessment for Dementia(DAD-K) scale. RESULTS: The results of a mixed model analyses demonstrated reduced caregiver time and improved ADLs in galantamine group relative to baseline and compared with the community control group in this 1-year prospective study. Significant improvement in galantamine group observed in the DAD scores demonstrated beneficial effects of galantamine on delaying functional deterioration in patients with mild to moderate AD. Difference in caregiver time between two groups was equivalent to additional 9.5 working days per month or 113 working days per year. CONCLUSION: Treatment with Galantamine is associated with a significantly slower decline in basic and instrumental ADLs in patients with mild to moderated AD. These benefits on functional capacity in patients with AD treated with galantamine were associated with less caregiver time, lower caregiver burden and higher economic benefits.
Activities of Daily Living*
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Alzheimer Disease*
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Caregivers*
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Cohort Studies
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Galantamine*
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Humans
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Prospective Studies*