Dr. Robert  Cates  Md image

Dr. Robert Cates Md

3300 Gallows Rd
Falls Church VA 22042
703 763-3111
Medical School: Other - Unknown
Accepts Medicare: No
Participates In eRX: No
Participates In PQRS: No
Participates In EHR: No
License #: 0101026295
NPI: 1174539621
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Return to sport: Does excellent 6-month strength and function following ACL reconstruction predict midterm outcomes? - Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA
The purpose of this study was to determine whether patients with excellent 6-month functional testing after ACL reconstruction had (1) higher risk of subsequent ACL tears, (2) superior knee function, and (3) increased activity levels compared to those with delayed clearance for return to sports at midterm follow-up.A total of 223 patients underwent primary ACL reconstruction by a single surgeon and had functional and isokinetic testing performed 6 months post-operatively between 1998 and 2005. Of the 223 patients, 52 (23 %) made the excellent group and were allowed return to sport at 6 months, and the remaining 171 (77 %) constituted the delayed group. Rate of ACL graft tear and native contralateral ACL tear was compared between groups. In addition, IKDC and Tegner scores were compared at a mean 4-year follow-up.The graft rupture rate was similar in the excellent group (3.8 %, n = 2) compared to the delayed group (4.7 %, n = 8; p = 0.30). However, there was a higher rate of contralateral ACL tear in the excellent group (15.4 %, n = 8 vs. 5.3 %, n = 9; p = 0.003). The excellent 6-month group had superior IKDC scores (94.3 ± 6.4 vs. 90.9 ± 9.7; p = 0.04) and Tegner scores (6.6 ± 1.8 vs. 5.7 ± 1.6; p = 0.01).Patients with an excellent performance on their isokinetic strength and functional testing at 6 months after ACL reconstruction have superior knee function and higher activity levels at midterm follow-up. However, these patients appear to be at greater risk of contralateral ACL injury, which may be related to their increased activity level. When isokinetic and functional testing is used for return-to-sport decisions, physicians should caution patients about the risk of contralateral ACL injury for high performing patients.Retrospective Review with Control, Level III.
Effects of Medicare Part D on guideline-concordant pharmacotherapy for bipolar I disorder among dual beneficiaries. - Psychiatric services (Washington, D.C.)
In January 2006 insurance coverage for medications shifted from Medicaid to Medicare Part D private drug plans for the six million individuals enrolled in both programs. Dual beneficiaries faced new formularies and utilization management policies. It is unclear whether Part D, compared with Medicaid, relaxed or tightened psychiatric medication management, which could affect receipt of recommended pharmacotherapy, and emergency department use related to treatment discontinuities. This study examined the impact of the transition from Medicaid to Part D on guideline-concordant pharmacotherapy for bipolar I disorder and emergency department use.Using interrupted-time-series analysis and Medicaid and Medicare administrative data from 2004 to 2007, the authors analyzed the effect of the coverage transition on receipt of guideline-concordant antimanic medication, guideline-discordant antidepressant monotherapy, and emergency department visits for a nationally representative continuous cohort of 1,431 adults with diagnosed bipolar I disorder.Sixteen months after the transition to Part D, the proportion of the population with any recommended use of antimanic drugs was an estimated 3.1 percentage points higher than expected once analyses controlled for baseline trends. The monthly proportion of beneficiaries with seven or more days of antidepressant monotherapy was 2.1 percentage points lower than expected. The number of emergency department visits per month temporarily increased by 19% immediately posttransition.Increased receipt of guideline-concordant pharmacotherapy for bipolar I disorder may reflect relatively less restrictive management of antimanic medications under Part D. The clinical significance of the change is unclear, given the small effect sizes. However, increased emergency department visits merit attention for the Medicaid beneficiaries who continue to transition to Part D.
Growth arrest of the capitellar physis after displaced lateral condyle fractures in children. - Journal of pediatric orthopedics
Fractures of the lateral humeral condyle represent the second most common elbow fracture in children and the most common physeal fracture about the elbow. Growth disturbances after this fracture, including premature physeal arrest, are rare but important complications. Only 4 radiographically documented reports of premature physeal arrest exist to date with just 1 offering comparative views. No computed tomography (CT) evidence of this event has previously been reported in the literature. The purpose of this study is to provide well-documented radiographic evidence of premature capitellar growth arrest, substantiated by CT imaging.We reviewed the radiographic and clinical records of 3 patients (mean age, 6.9 y) that presented with Jakob type III fractures. All fractures were treated with open reduction and internal fixation. Follow-up ranged from 1.6 to 11.1 years (mean, 6.0 y). Radiographs were evaluated for any growth disturbances, including premature capitellar-metaphyseal fusion, lateral spur formation, changes in the humeral-ulnar angles, and fishtail deformities. Contralateral elbow radiographs were utilized for comparison when available. Clinical findings at last follow-up were provided for clinical correlation.The mean time to arrest and age at arrest were 2.6 and 9.5 years, respectively. At last follow-up, patient 1 was functionally asymptomatic, showed a 6-degree increase in the humeral-ulnar angle, an increase in the carrying angle, and a fishtail deformity. Patient 2 was functionally asymptomatic, showed equal humeral-ulnar angles, and a small lateral spur formation on the injured side. Patient 3 was functionally symptomatic with pain and a 15-degree loss of extension on the injured side. There was also a 13-degree increase in the humeral-ulnar angle with an increase in carrying angle of approximately 8 degrees.This is the first study to radiographically document premature physeal arrest after lateral condyle fractures using both comparative views and CT imaging. It is important for surgeons to be aware of this potential complication after lateral condyle fractures of the humerus and to diligently monitor patients annually for possible intervention until they have achieved skeletal maturity.Level IV--case series.
Knee injuries and the use of prophylactic knee bracing in off-road motorcycling: results of a large-scale epidemiological study. - The American journal of sports medicine
The effectiveness of prophylactic knee bracing in preventing knee injuries during sports has been evaluated; however, because of the variability in study conclusions, the topic remains controversial. Despite a paucity of data, the authors believe that prophylactic knee bracing is frequently used in off-road motorcycling.No statistically significant difference exists in the frequency and types of knee injuries incurred between braced and nonbraced riders using commercially available knee braces in off-road motorcycling.Descriptive epidemiology study.Data from 2115 off-road motorcycle riders was obtained using an Internet-based survey over a 1-year period. Participants were grouped by use or nonuse of prophylactic knee bracing, and an incidence rate ratio was used for injury rate comparison.Participants recorded 39 611 riding hours over the study period. A total of 57 riders (2.7%) sustained at least 1 knee injury, for a total of 89 injuries. The most common injuries involved the anterior cruciate ligament, menisci, and medial collateral ligament. There was a significantly higher rate of overall injuries in the nonbraced group versus the braced group (3.675 vs 1.587 per 1000 rider hours, P < .001). Significantly higher incidence rates of anterior cruciate ligament rupture (1.518 vs 0.701 per 1000 rider hours, P = .0274) and medial collateral ligament injury (0.799 vs 0.111 per 1000 rider hours, P = .002) were found among nonbraced riders compared with braced riders.The most common knee injuries in off-road motorcycling involve the anterior cruciate ligament, menisci, and medial collateral ligament. The use of prophylactic knee bracing appears to have a beneficial effect in preventing medial collateral ligament and anterior cruciate ligament injuries as well as overall knee injury occurrence. These findings may be applicable to other sports that involve similar forces and mechanics.
Screening for inhalational anthrax due to bioterrorism: evaluating proposed screening protocols. - Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
Eleven known cases of bioterrorism-related inhalational anthrax (IA) were treated in the United States during 2001. We retrospectively compared 2 methods that have been proposed to screen for IA. The 2 screening protocols for IA were applied to the emergency department charts of patients who presented with possible signs or symptoms of IA at Inova Fairfax Hospital (Falls Church, Virginia) from 20 October 2001 through 3 November 2001. The Mayer criteria would have screened 4 patients (0.4%; 95% CI, 0.1%-0.9%) and generated charges of 1900 dollars. If 29 patients (2.6%; 95% CI, 1.7%-3.7%) with >or=5 symptoms (but without fever and tachycardia) were screened, charges were 13,325 dollars. The Hupert criteria would have screened 273 patients (24%; 95% CI, 22%-27%) and generated charges of 126,025 dollars. In this outbreak of bioterrorism-related IA, applying the Mayer criteria would have identified both patients with IA and would have generated fewer charges than applying the Hupert criteria.
Inhalational anthrax due to bioterrorism: would current Centers for Disease Control and Prevention guidelines have identified the 11 patients with inhalational anthrax from October through November 2001? - Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
A panel of 10 physicians used the nominal group technique to assess the ability of the Centers for Disease Control and Prevention (CDC) interim guidelines for clinical evaluation of persons with possible inhalational anthrax (IA) to retrospectively identify the 11 patients with IA seen during the October 2001 bioterrorism outbreak. The guidelines would not have identified 10 of 11 of these patients, primarily because the guidelines were designed to address only those patients with a known history of exposure or clearly identified environmental or occupational risk. The panel suggested revisions to the guidelines, primarily consisting of broadening the criteria for evaluation to include either known exposure or environmental occupational risk, or to include clinical symptoms consistent with IA. These extensions of the guidelines retrospectively identified 8 of 11 of the patients with IA from October 2001.

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