Neurologist (brain, nervous system)
46 years of experience
Video profile
Accepting new patients
Maedgen Area
Texas Tech University Health Sciences Cente
3601 4th St
Lubbock, TX 79430
Locations and availability (2)

Education ?

Medical School Score
The University of Texas at Galveston (1964)
  • Currently 2 of 4 apples

Awards & Distinctions ?

American Board of Orthopaedic Surgery

Affiliations ?

Dr. Henry is affiliated with 11 hospitals.

Hospital Affilations



  • Covenant Medical Center
    3615 19th St, Lubbock, TX 79410
    • Currently 4 of 4 crosses
    Top 25%
  • Covenant Hospital Levelland
    1900 College Ave, Levelland, TX 79336
    • Currently 2 of 4 crosses
  • Covenant Children's Hospital
    3610 21st St, Lubbock, TX 79410
    • Currently 2 of 4 crosses
  • Covenant Hospital Plainview *
    2601 Dimmitt Rd, Plainview, TX 79072
    • Currently 1 of 4 crosses
  • University Medical Center
  • University Medical Center - Lubbock *
  • Highland Medical Ctr
  • Northstar Surgical Center
  • TX Tech Physicians Associates
  • Highland Med Ctr, Lubbock, Tx
  • Lincoln County Medical Center
  • * This information was reported to Vitals by the doctor or doctor's office.

    Publications & Research

    Dr. Henry has contributed to 28 publications.
    Title Abomasal Abnormalities in Dairy Cattle: A Review of 90 Clinical Cases.
    Date July 2007
    Journal The Canadian Veterinary Journal. La Revue Vétérinaire Canadienne
    Title Decreased Production of Inflammatory Mediators in Human Osteoarthritic Chondrocytes by Conjugated Linoleic Acids.
    Date February 2005
    Journal Lipids

    Osteoarthritic chondrocytes (OC) produce excessive prostaglandin E2 (PGE2) and nitric oxide (NO), which function as inflammation mediators in the pathogenesis of osteoarthritis (OA). This study examined the effect of CLA alone and in combination with other PUFA on the FA composition and the production of PGE2 and NO in OC cultures isolated from OA patients. Human OC were grown in monolayer and treated with one of the following PUFA treatments: CLA, CLA + arachidonic acid (CLA/AA), CLA + EPA (CLA/EPA), linoleic acid (LA), LA + AA (LA/AA), LA + EPA (LA/EPA), and ethanol (as a vehicle control) at 10 and 20 microM for 6 d. Supplementation of PUFA at 10 microM for 6 d did not introduce any cytotoxic effects or morphological changes in OC, whereas 20 microM resulted in apoptosis. Cultures of OC treated with CLA, CLA/AA, and CLA/EPA had higher concentrations of CLA isomers, and these isomers were not detected in other treatments. Supplementation of CLA or LA alone to the OC led to a lower PGE2 production compared to the control. Combination of CLA/EPA resulted in the lowest PGE2 production in cultured OC. OC cultures treated with CLA were lower in NO production than the control, whereas the LA/AA treatment demonstrated the lowest NO production. The fact that CLA alone or in combination with other PUFA modulated PGE2 and NO production in human OC cultures suggests that these 18:2 isomers may have the potential to influence OA pathogenesis.

    Title Templates of the Cartilage Layers of the Patellofemoral Joint and Their Use in the Assessment of Osteoarthritic Cartilage Damage.
    Date November 2003
    Journal Osteoarthritis and Cartilage / Oars, Osteoarthritis Research Society

    OBJECTIVE: To develop a methodology for generating templates that represent the normal human patellofemoral joint (PFJ) topography and cartilage thickness, based on a statistical average of healthy joints. Also, to determine the cartilage thickness in the PFJs of patients with osteoarthritis (OA) and develop a methodology for comparing an individual patient's thickness maps to the normal templates in order to identify regions that are most likely to represent loss of cartilage thickness. DESIGN: The patella and femur surfaces of 14 non-arthritic human knee joints were quantified using either stereophotogrammetry or magnetic resonance imaging. The surfaces were aligned, scaled, and averaged to create articular topography templates. Cartilage thicknesses were measured across the surfaces and averaged to create maps of normal cartilage thickness distribution. In vivo thickness maps of articular layers from 33 joints with OA were also generated, and difference maps were created depicting discrepancies between the patients' cartilage thickness maps and the normative template. RESULTS: In the normative template, the surface-wide mean+/-SD (maximum) of the cartilage thickness was 2.2+/-0.4mm (3.7mm) and 3.3+/-0.6mm (4.6mm) for the femur and patella, respectively. It was demonstrated that difference maps could be used to identify regions of thinner-than-normal cartilage in patients with OA. Patients were shown to have statistically greater regions of thin cartilage over their articular layers than the normal joints. On average, patients showed deficits in cartilage thickness in the lateral facet of the patella, in the anterior medial and lateral condyles, and in the lateral trochlea of the femur. CONCLUSIONS: This technique can be useful for in vivo clinical evaluation of cartilage thinning in the osteoarthritic patellofemoral joint.

    Title Computer Simulations of Patellofemoral Joint Surgery. Patient-specific Models for Tuberosity Transfer.
    Date April 2003
    Journal The American Journal of Sports Medicine

    BACKGROUND: Variable clinical outcomes of tibial tuberosity transfer surgery have been reported. HYPOTHESES: The biomechanical outcome of surgery is patient-specific; no single procedure produces superior results for all patients. Use of patient-specific computer models can optimize choice of procedure. STUDY DESIGN: Computer simulation study using clinical data. METHODS: We used patient-specific multibody models of the patellofemoral joints of 20 patients with a diagnosis of patellar subluxation and osteoarthritis. Four tibial tuberosity transfer procedures (two anterior and two anteromedial) were simulated for each patient and compared with their preoperative model. RESULTS: When results for all patients were averaged, all simulated operations produced a statistically significant decrease in surface-wide mean contact stress, although no significant difference was found among them. CONCLUSIONS: The simulated surgical outcomes were patient-specific: no single procedure was consistently superior at decreasing peak or mean stress and each procedure produced a potentially detrimental outcome, an increase in either mean stress or peak stress, in at least one patient. CLINICAL RELEVANCE: Computer simulation may serve as a valuable tool for tailoring procedures to specific patients.

    Title Love Your Patients.
    Date August 2002
    Journal Journal of the Southern Orthopaedic Association
    Title Patellofemoral Stresses During Open and Closed Kinetic Chain Exercises. An Analysis Using Computer Simulation.
    Date December 2001
    Journal The American Journal of Sports Medicine

    Rehabilitation of the symptomatic patellofemoral joint aims to strengthen the quadriceps muscles while limiting stresses on the articular cartilage. Some investigators have advocated closed kinetic chain exercises, such as squats, because open kinetic chain exercises, such as leg extensions, have been suspected of placing supraphysiologic stresses on patellofemoral cartilage. We performed computer simulations on geometric data from five cadaveric knees to compare three types of open kinetic chain leg extension exercises (no external load on the ankle, 25-N ankle load, and 100-N ankle load) with closed kinetic chain knee-bend exercises in the range of 20 degrees to 90 degrees of flexion. The exercises were compared in terms of the quadriceps muscle forces, patellofemoral joint contact forces and stresses, and "benefit indices" (the ratio of the quadriceps muscle force to the contact stress). The study revealed that, throughout the entire flexion range, the open kinetic chain stresses were not supraphysiologic nor significantly higher than the closed kinetic chain exercise stresses. These findings are important for patients who have undergone an operation and may feel too unstable on their feet to do closed chain kinetic chain exercises. Open kinetic chain exercises at low flexion angles are also recommended for patients whose proximal patellar lesions preclude loading the patellofemoral joint in deeper flexion.

    Title Anterior Cruciate Ligament Function After Tibial Eminence Fracture in Skeletally Mature Patients.
    Date October 2001
    Journal The American Journal of Sports Medicine

    We compared anterior cruciate ligament function in skeletally mature patients after treatment of tibial eminence fractures with that of patients in two other groups: patients who had anterior cruciate ligament deficiency and patients who had undergone anterior cruciate ligament reconstruction using bone-patellar tendon-bone autografts. The Lysholm questionnaire was used to evaluate symptoms and KT-1000 arthrometry was used to determine objective knee laxity at an average follow-up of 5.2 years. Knee joint proprioception was assessed with a new method designed to test joint position sense. The Lysholm score for the tibial eminence group was 94 +/- 7. Only the patients in the anterior cruciate ligament-deficient group demonstrated statistically significantly increased laxity and inferior proprioception when the injured leg was compared with the uninjured leg. Both laxity and proprioception were statistically inferior for the anterior cruciate ligament-deficient group when compared with both the treated tibial eminence fracture group and the anterior cruciate ligament-reconstructed group. No statistically significant difference was observed between the anterior cruciate ligament-reconstructed and treated tibial eminence fracture groups. Correlation was observed between laxity and proprioception when all patients were analyzed. The results demonstrate that appropriate treatment of tibial eminence fractures restores stability and proprioception to the knee.

    Title Immediate Surgical Repair of the Medial Patellar Stabilizers for Acute Patellar Dislocation. A Review of Eight Cases.
    Date May 2001
    Journal The American Journal of Sports Medicine

    An open surgical repair of the injured medial patellar stabilizers, including the vastus medialis obliquus muscle and the medial patellofemoral ligament, after acute patellar dislocation was studied in eight patients. At initial examination, all patients had tenderness over the adductor tubercle and a positive patellar apprehension sign. Four of eight patients had obvious ecchymosis over the adductor tubercle. Magnetic resonance imaging, diagnostic arthroscopy, and open surgical exploration documented injury to both the medial patellofemoral ligament and the origin of the vastus medialis obliquus muscle. In all patients, the torn muscle was retracted in an anterior and superior direction and an arthroscopic lateral release was performed followed by open primary repair of the medial patellofemoral ligament to the adductor tubercle and repair of the vastus medialis obliquus muscle to the adductor magnus tendon. Patients were evaluated postoperatively with the Kujala scoring questionnaire. The average follow-up was 3.0 years, with a minimum of 1.5 years. No patients experienced a recurrent dislocation. The average Kujala score was 91.9. Patients rated their return to athletic activity at an average 86% of their pre-injury level. The average subjective satisfaction was 96%. In appropriate cases of acute patellar dislocation, we recommend primary repair of the medial patellofemoral ligament and the vastus medialis obliquus muscle to avoid recurrent dislocation, chronic subluxation, pain, and disability.

    Title Hamstrings and Iliotibial Band Forces Affect Knee Kinematics and Contact Pattern.
    Date March 2000
    Journal Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society

    Many clinical studies have emphasized the role of the hamstrings and the iliotibial band on knee mechanics, although few biomechanical studies have investigated it. This study therefore examined two hypotheses: (a) with loading of the hamstrings, the tibia translates posteriorly and rotates externally and the tibial contact pattern shifts anteriorly; furthermore, the changes in tibial kinematics alter patellar kinematics and contact; and (b) loading the iliotibial band alters the kinematics and contact pattern of the tibiofemoral joint similarly to loading the hamstrings, and loading the iliotibial band laterally translates the patella and its contact location. Five cadaveric knee specimens were tested with a specially designed knee-joint testing machine in an open-chain configuration. At various flexion angles, the knees were tested always with a quadriceps force but with and without a hamstrings force and with and without an iliotibial band force. The results support the first hypothesis. Hence, the hamstrings may be important anterior and rotational stabilizers of the tibia, a role similar to that of the anterior cruciate ligament. The results also support the second hypothesis, although the iliotibial band force had a smaller effect on the tibia than did the hamstrings force. Both forces also changed patellar kinematics and contact, demonstrating that these structures should also be considered during the clinical management of patellar disorders.

    Title Patellar Stabilization: a Quantitative Evaluation of the Vastus Medialis Obliquus Muscle.
    Date September 1998
    Journal Orthopedics

    Twenty-one cadaveric knees were dissected to analyze the functional anatomy of the vastus medialis complex (VMC), which is composed of the vastus medialis obliquus (VMO) and the vastus medialis longus (VML) muscles. The physiologic cross-sectional area of the VMO for 20 of the knees was 29% of the total physiologic cross-sectional area for the VMC. These values differed in one knee with a dysplastic VMO. The quantitative description of the VMO provided by this study will facilitate future efforts to accurately model the physiologic function of the VMO in cadaveric investigations on patellofemoral mechanics. The effect of simulated pathologies and surgical reconstructions then may be determined with more certainty to improve patient management.

    Title Posterolateral Stabilizers of the Knee: Anatomy and Injuries Assessed with Mr Imaging.
    Date January 1998
    Journal Ajr. American Journal of Roentgenology
    Title Anatomy of the Human Patellofemoral Joint Articular Cartilage: Surface Curvature Analysis.
    Date August 1997
    Journal Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society

    Articular cartilage surfaces of 49 human patellae and 24 distal femora were characterized by identifying distinctive features with surface curvature analysis. Paired specimens from the same donor generally exhibited natural symmetry, so only results from nonpaired specimens were considered (39 patellae and 19 femora). In 23 of 39 patellae, proximal median and lateral transverse ridges extended to form an oblique ridge resembling a skewed lambda (lambda). Most of the unpaired patellae (37 of 39) exhibited only a single lateral transverse ridge, and most (32 of 39) had an odd facet. All but one patella exhibited a concave depression in the lateral and medial facets and a sellar area in the proximal region. All distal femoral surfaces exhibited a sellar trochlea. The concavity of the trochlea was greatest in the posterior aspect, near the intercondylar notch.

    Title Sertraline in Coexisting Major Depression and Diabetes Mellitus.
    Date August 1997
    Journal Psychopharmacology Bulletin

    As many as 25 percent of patients with diabetes mellitus may also have depressive symptoms. Tricyclic antidepressants (TCAs) may produce increased appetite and weight gain with adverse consequences for diabetes. The selective serotonin reuptake inhibitors (SSRIs), however, may improve fasting blood sugar in laboratory studies. In an initial application, sertraline was administered at a dose of 50 mg/day in a 10-week open study to 28 non-insulin-dependent diabetes mellitus (NIDDM) patients with DSM-III-R major depression after a 2-week single-blind placebo washout period with a minimum 17-Item Hamilton Rating Scale for Depression (HAM-D) score of 18. The patient group included 16 males and 12 females with a mean age of 54.2 +/- 8.8 years. Results indicated (1) significant improvement in mean HAM-D (22.6 +/- 3.4 to 4.9 +/- 5.9, p < .001) and in mean Beck Depression Inventory (BDI) scores (21.9 +/- 10.5 to 12.7 +/- 8.3, p < .001); (2) fall in platelet serotonin (5-HT) content (79.7 +/- 22.5 to 13.6 +/- 12.7 ng/10(8) platelets, p < .001); (3) correlation of baseline platelet 5-HT content with response to sertraline by BDI scores (r = 0.51, p < .05); (4) improved dietary compliance for those with baseline value below 70 percent (59.7% to 69.1%, p < .005); and (5) 13 of 17 patients with baseline glycosylated hemoglobin A (HbA1c) levels greater than 8.0, showed a reduction (p = .018). Sertraline may be an effective antidepressant in patients with diabetes mellitus and response may be predictable by higher baseline platelet 5-HT content, with the potential to improve dietary compliance and reduce HbA1c measures. As with all open studies, replication is essential.

    Title Treatment of Depression in Patients with Diabetes Mellitus.
    Date May 1995
    Journal The Journal of Clinical Psychiatry

    BACKGROUND: Depression occurs frequently in patients with diabetes mellitus. Little has been published on the epidemiology, biochemistry, and treatment of depression in diabetic patients. METHOD: We searched MEDLINE for literature from January 1966 to July 1993 and cross-referenced the terms diabetes, glucose, hyperglycemia, or hypoglycemia, with each of the following: antidepressants, monoamine oxidase inhibitors, tricyclic antidepressants, fluoxetine, paroxetine, sertraline, and bupropion. The results reviewed were 20 papers on epidemiology, 15 papers on neurochemicals and glucose control, and 28 papers on antidepressants and factors of importance to diabetics. Additional papers were selected from the reference lists of the retrieved articles. RESULTS: The prevalence of depression in diabetics varies from 8.5% to 27.3%. Severity of depression correlates strongly with many symptoms of diabetes mellitus. The hydrazine monoamine oxidase inhibitors (MAOIs), e.g., phenelzine, potentiate animal models of hypoglycemia due to direct influence on gluconeogenesis secondary to the hydrazine structure, not to MAOI considerations. Dopamine and norepinephrine influences in these models appear to be hyperglycemic. Serotonergic influences, in the presence of MAOIs, which decrease serotonin metabolism, are in contrast hypoglycemic. Clinically, MAOI use is limited by the possible severity of the induced hypoglycemia, induced weight gain, and required diets. The tricyclic antidepressants may lead to hyperglycemia, to an increase in carbohydrate craving (from 86% to 200%), and impaired memory. Serotonin selective reuptake inhibitors (SSRIs) may be hypoglycemic (causing as much as a 30% decrease in fasting plasma glucose) and anorectic (causing an approximately 2-lb decrease), while possibly improving alertness. CONCLUSION: Depression is frequent among diabetic patients and impairs diabetic management. To maximize response of both depression and diabetic disorder, one should consider the SSRIs in preference over the TCAs.

    Title Tibiofibular Synostosis in Professional Basketball Players.
    Date October 1993
    Journal The American Journal of Sports Medicine
    Title Conservative Treatment of Patellofemoral Subluxation.
    Date August 1989
    Journal Clinics in Sports Medicine

    As pointed out in the preface of this book, patellofemoral subluxation is probably the most common knee problem seen in many orthopedists' offices today. Whereas the other authors have emphasized the anatomy and diagnosis, this article should serve as a dry but basic instruction on the exercise program that has been used in our clinic. We have had a success rate with this program of approximately 80 per cent. Certainly not all of the 20 per cent that fail require surgery. The classic exercises are quadricep sets, straight leg raises, hip abductors, hip adductors, hip flexors, and hamstring stretches, which have endured the test of time. The prevention of flexion extension activity, such as running the stadium stairs in order to strengthen the quadriceps of the patient with patellofemoral subluxation should be emphasized. Complications of conservative treatment, such as low back pain, iliopsoas tendinitis, and muscle soreness and the treatment of these is described. Finally, the importance of stretching the hamstring muscles is a cornerstone in the treatment of patellofemoral problems. Likewise, a tight IT band can put abnormal stress on the lateral aspect of the patella. In this article I have tried to point out our approach to conservative treatment of patellofemoral subluxation.

    Title Stress Injuries of the Adolescent Extensor Mechanism.
    Date August 1989
    Journal Clinics in Sports Medicine

    Stress injury to the extensor mechanism is common, and we expect it to become more so as adolescent athletes train earlier and more vigorously. The clinical and radiographic findings of a number of these stress injuries are described. Our young athletes challenge us to continue studying these stress injuries with the goal of offering them more effective preventative programs. The success of our study will probably lie in the areas of stretching, cross training, and strength programs.

    Title The Results of Extensor Mechanism Realignment Following Failed Lateral Retinacular Releases.
    Date August 1989
    Journal Clinics in Sports Medicine

    An evaluation of open extensor mechanism realignments performed in patients with previously failed lateral retinacular releases was performed. A 76 per cent and 66 per cent good to excellent objective and subjective result was found in this study. Radiography, muscle power determinations, failure determinations, and complications are discussed.

    Title Unusual Cause of Knee Pain in the Older Adult.
    Date April 1989
    Journal Orthopaedic Review

    An unusual cause of knee pain in the older adult is presented. Two case reports illustrate diagnostic approach and treatment options.

    Title Continuous Passive Motion After Total Knee Arthroplasty.
    Date October 1986
    Journal Southern Medical Journal

    We established a clinical retrospective study to determine the benefit of continuous passive motion after total knee replacement. Nineteen patients who had continuous passive motion (CPM) after total knee replacement were compared to a control group of 15 patients who did not have CPM. The number of days to discharge was 16 for the CPM group and 20 for the control group. When the patients with complications from CPM were excluded from the CPM group, the average number of days to discharge for the CPM group was 12. The average number of postoperative days before reaching 90 degrees of knee flexion was nine in the CPM group as compared to 16 days in the control group. The average blood loss was not significantly different in the two groups. There were four wound healing complications in the CPM group. All four complications occurred in patients who achieved 90 degrees of knee flexion in less than six days postoperatively. We developed a protocol for maximal use of CPM without significant wound complications after total knee surgery.

    Title Lateral Retinacular Release in Patellofemoral Subluxation. Indications, Results, and Comparison to Open Patellofemoral Reconstruction.
    Date July 1986
    Journal The American Journal of Sports Medicine

    A consecutive series of patients who have undergone arthroscopy and lateral retinacular release for patellofemoral subluxation was evaluated so that the results could be compared to an earlier series of open patellofemoral reconstructions. Of 96 patients, 4 had bilateral releases; therefore, 100 knees were evaluated. The average age was 28 years. Specific symptoms and signs were reviewed. All patients were initially treated conservatively with specific exercises. Failure of the exercise program to improve symptoms significantly, the patient's inability to perform normal daily activities, or expected associated pathology were indications for surgery. The surgical technique consisted of arthroscopy with treatment of associated pathology and lateral retinacular release using the Smillie meniscotome through the inferior lateral portal. The patella could be tilted approximately 90 degrees medially when the release was accomplished. Pain, function, and patellar instability were evaluated preoperatively and postoperatively by signs of tenderness on the retinaculum or bone, patellar mobility, effusion, muscle atrophy, and tone. Range of motion was also evaluated. Average followup was 36 months. When evaluated subjectively by the patients, pain improved from a mean preoperative grade of 3.4 to 1.7 postoperatively, function improved from 3.4 to 1.7, and instability from 3.4 to 1.6. Objective evaluation found that tenderness on the patella improved from a mean preoperative grade of 3.3 to 1.7 postoperatively. Tenderness on the retinaculum improved from 3.2 to 1.7. Patellar mobility improved from 3.3 to 1.7. Effusion dropped from 3.2 preoperatively to 1.5 postoperatively; quadriceps atrophy from a mean preoperative grade of 3.2 to 1.5, and quadriceps tone from 3.2 to 1.6.(ABSTRACT TRUNCATED AT 250 WORDS)

    Title Natural History of Glenohumeral Dislocation--revisited.
    Date October 1982
    Journal The American Journal of Sports Medicine

    The purpose of this study was to evaluate the natural history of glenohumeral dislocation in young athletes. A review of the literature revealed a consensus of opinion that the dislocated shoulder should be immobilized from 3-6 weeks. However, a high recurrence rate could be expected. One hundred twenty-one patients with acute traumatic anterior dislocations were evaluated (average age-19 years). Methods of immobilization were shoulder immobilizers and slings and swaths. Sixty-two patients were immobilized and 56 (90%) of these suffered recurrent dislocation. Fifty-nine patients were not immobilized and 50 (85%) re-dislocated their shoulders. The length of immobilization had no effect on the recurrence rate. All re-dislocations occurred within 18 months of the initial injury. Seventy-nine patients were operated on for recurrent dislocation. With such a high recurrence rate in the athletic age group, the authors question if immobilization affects the prognosis.

    Title The Injury Rate in Professional Basketball.
    Date February 1982
    Journal The American Journal of Sports Medicine

    The purpose of this study is to review seven years of medical experience with injuries to players of a professional basketball club. One of the authors was involved with all injuries occurring during this period of time. All 71 athletes participating with this club were evaluated, and their specific injuries were studied with regard to incidence, time loss due to injury, and treatment. Foot, ankle, knee, back, and hand injuries were found to occur most often. The most common as well as the most severe injuries were those of the ankle and knee. The average time loss from play due to injury was amazingly consistent for each specific injury. Rehabilitation of injuries varied from no playing time loss to two years. Even though knee injuries carry a poor prognosis, the authors conclude that the incidence of severe injury in professional basketball is low. This study will hopefully serve as useful information for those involved with the care of basketball players.

    Title Traumatic Meniscal Lesions in Children.
    Date January 1982
    Journal Southern Medical Journal

    Of 475 consecutive meniscectomies evaluated, only nine were in patients 14 years old or younger. These nine cases were studied as to the mechanism of injury to the knee, type of lesion of the meniscus, concomitant lesions of the knee, rehabilitation, and final result. Traumatic lesions of the meniscus in children are rare, the mechanism of injury is varied, longitudinal tears are most common, anterior cruciate lesions were sometimes present, and early rehabilitation is less difficult than in adults, but the final result is compromised.

    Title Congophilic Angiopathy in the Pathogenesis of Alzheimer's Degeneration.
    Date December 1981
    Journal Annales De Pathologie

    The pathologic manifestations in 45 valid cases of Alzheimer's degeneration were evaluated with specific focus on the presence of Congophilic angiopathy. The latter lesion was found in 89% of the cases and had a definite temporal relationship to the presence of neuritic plaques and neurofibrillary tangles. Two types of plaques were defined, the neuritic and perivascular. The latter was associated spatially with vessels, but not neurofibrillary tangles, while the converse was true of the neuritic plaques. Based on the pattern of mural involvement of vessels, distinctions could be made to differentiate morphologically between cerebral and peripheral amyloid angiopathy. Alzheimer's degeneration appears to be a disease complex with a variety of etiologies. Little or no differences in morphologic characteristics between the presenium and senium process could be discerned. Congophilic angiopathy appears to be a major feature in the pathogenesis of Alzheimer's degeneration.

    Title Surgical Treatment of Patellar Instability: Indications and Results.
    Date June 1981
    Journal The American Journal of Sports Medicine

    The purpose of this study was to evaluate a consecutive series of 465 patients with patellar subluxation. Both knees were involved in some patients. Therefore, 557 knees were studied. The average age was 24 years. Specific symptoms and signs were reviewed. Instability, swelling, and patella alta were more common in the group requiring surgery. All patients were treated conservatively with specific exercises initially. Failure of this conservative treatment to significantly improve the symptoms, inability to do the activities of daily living, or expected associated pathology were indications for surgery. Surgery was required in 139 patients (27%). Some patients had surgery on both knees. Therefore 149 knees were repaired. The surgical technique consisted of an extensor mechanism realignment. This consisted of release of the lateral patellofemoral ligaments, advancement of the vastus medialis obliquus muscle and, in some cases, transfer of the tibial tubercle. Arthrotomy was done in all cases. Results were evaluated in terms of pain, function, and patellar instability. Signs evaluated preoperatively and postoperatively were tenderness of the retinaculum or bone, patellar mobility, effusion, muscle atrophy, and tone. Range of motion was also evaluated. The average followup lasted three years.

    Title Conservative Treatment of Patellofemoral Subluxation.
    Date April 1979
    Journal The American Journal of Sports Medicine
    Title Revision Arthroplasty Using Charnley Low Friction Arthroplasty Technic. With Reference to Specifics of Technic and Comparison of Results with Primary Low Friction Arthroplasty.
    Date January 1974
    Journal Clinical Orthopaedics and Related Research

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