By Q. Grimboll. Marylhurst University. 2018.

Can be mistaken for osteo- porosis buy cheap lipitor 20 mg on line cholesterol lowering functional foods, and can also be confused with spondylitis purchase lipitor 20 mg mastercard free cholesterol test ottawa. The childhood form of osteomalacia is called rickets osteophyte bony outgrowth (seen on X-ray) at joint margin of an osteoarthritic joint, or in degenerative disc disease osteoporosis a disease characterized by reduction in mineral content usually seen with aging, but also in connection with certain conditions such as paralysis, or due to prolonged use of certain drugs, such as corti- costeroids Paget’s disease a disease characterized by accelerated bone turnover, resulting in the involved bone becom- ing enlarged but weak and fragile. The bone also feels warmer to touch due to increased blood supply. Also called osteitis deformans pathogenesis process of development of a disease pauciarthritis same as oligoarthritis pelvis the bony structures in the lowest part of the trunk. The term pelvic is used for anything that belongs or refers to the pelvis peptic ulcer a sore in the lining of the stomach (gastric ulcer) or duodenum (duodenal ulcer). The word peptic refers to the stomach and the duodenum, where pepsin is present, an enzyme that breaks down proteins. An ulcer can sometimes occur in the lower part of the esophagus in association with heartburn. Proteins are made of multiple peptides linked together placebo originally a Latin word meaning ‘I will please’. Now used for inactive substance (sham) given to par- ticipants of a research study in order to test the efficacy of another substance or treatment. In short- thefacts 165 AS-App 2(151-172) 5/29/02 5:56 PM Page 166 Ankylosing spondylitis: the facts term clinical trials, many of the most valued drugs in clinical use are only about 25% more effective than placebo. Scientists often have to compare the effects of active and inactive substances to learn more about how the active substance affects participants; in such studies both doctor and patient are unaware of who is receiving the active or inactive substance. Such studies are known as double blind placebo controlled studies polyarthralgia pains in many joints; conventionally refers to more than four joints, without signs of inflammation in the symptomatic joints polyarthritis inflammation in many joints; convention- ally in more than four joints preclinical diagnosis diagnosis of a genetic disease before there are any symptoms or signs prevalence the observed number of people in a given population affected with a particular disease or con- dition at a given time, usually stated as the number of cases observed per 100 000 individuals, or listed as a percentage. In contrast with incidence, prevalence can be thought of as a snapshot of all existing cases at a specified time prognosis the probable end result or outcome of a disease protein a large molecule composed of amino acids. Essential components of the body tissue (see also peptide) proton pump inhibitors a group of drugs used to treat heartburn and peptic ulcer disease. These include omprezole (Prilosec), esomeprazole (Nexium) and pansoprazole (Prevacid) prospective, randomized, double blind study clinical trial or study in which the method of data analysis is specified in a protocol before the study is begun (prospective). Patients are randomly assigned to receive either the study drug or an alternative treat- 166 thefacts AS-App 2(151-172) 5/29/02 5:56 PM Page 167 Appendix 2: Glossary ment, and neither the patient nor the doctor conduct- ing the study knows which treatment is being given to which patient (see also placebo) proximal the part of a limb that is closest to the trunk. For example, the shoulder joint forms the proximal end of the upper extremity (opposite of distal) psoriasis a common chronic skin disease, more common in whites (2% of the population) than in other racial groups, in which red flaky lesions occur— often on the elbows and knees, or in the scalp. May cause nail abnormalities psoriatic arthritis arthritis associated with psoriasis; occurs in more than 10% of people with psoriasis. May occur in several forms Qi Chinese term for vital energy or life force. Pronounced chee (see acupuncture) radiography/radiograph/radiogram/radiologic radiogra- phy (or roentgenography) is the method of taking a picture with the help of X-rays, and the terms radi- ograph or simply X-ray are sometimes used for the resulting picture. Radiogram is the correct name for an image taken by radiography randomized, double-blind, placebo-controlled, multi- center trial a clinical trial in which patients have been randomly assigned to receive either the study drug or the alternative treatment under study. Neither the patient nor the doctor conducting the study knows which treatment is being given; the alternative to the study drug is a placebo; and the study is conducted at several centers range of motion the extent to which a joint is able to go through all of its normal movements. Range-of- motion exercises help increase or maintain flexibility and movement in muscles, tendons, ligaments, and joints reactive arthritis arthritis resulting from infection else- where in the body; i. The commonest type is HLA B27-related and may follow certain types of bowel or genitourinary infection Reiter’s syndrome a form of HLA B27-related reactive arthritis with a classical triad of arthritis, conjunctivi- tis, and urethritis, with or without other features of spondyloarthropathies. The term reactive arthritis is now used more commonly to describe this condition rheumatic fever a form of reactive arthritis triggered by streptococcal sore throat. Its features include very painful joint inflammation (arthritis). It is now uncom- mon in developed countries but still occurs commonly in other parts of the world. It can cause inflammation and scarring of heart valvos (rheumatic heart disease) rheumatoid arthritis a chronic systemic disease that causes inflammatory changes in the synovium, or joint lining, that result in pain, stiffness, swelling, and ulti- mately loss of function and deformities of the affected joints due to destruction of the cartilage and adjacent bone. The disease can also affect other parts of the body. In the past it was also called chronic polyarthri- tis. It is more common in women than men, and at least 70% of patients show a positive blood test for rheumatoid factor rheumatologist a doctor (board-certified internist or pediatrician) who has had specialized training in diag- nosing and treating disorders that affect the joints, muscles, tendons, ligaments, connective tissue, and bones roentgenography see radiography sacroiliac joints two joints, one on either side, in the lower back, between the two pelvic bones called sacrum and ilium (see Figure 4) sacroiliitis inflammation of the sacroiliac joint; bi- lateral sacroiliitis is a hallmark of AS sacrum major bony component of the pelvis, shaped like a wedge on which the spine rests. It forms a joint 168 thefacts AS-App 2(151-172) 5/29/02 5:56 PM Page 169 Appendix 2: Glossary with ilium, one on each side, via the right and left sacroiliac joints Salmonella a group of bacteria comprising many dif- ferent types that may cause intestinal infection and diarrhea called salmonellosis, which includes typhoid fever. Enteric infections with Salmonella, Shigella, Yersinia, or Campylobacter are the most common trig- gers for reactive arthritis, especially in some developing parts of the world SAPHO syndrome so named because of its salient fea- tures: synovitis, acne, palmoplantar pustulosis, hyper- ostosis, aseptic osteomyelitis. This rare disease causes aseptic (no evidence of infection) bone necrosis at multiple sites that can include the sacroiliac joints or the spine. It is known by many different names, but SAPHO syndrome is the most common sausage digit finger or toe that is diffusely swollen as a result of tenosynovitis; usually seen in psoriatic and reactive arthritis.

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Peliosis hepatis is a characteristic finding in the liver and appears as hypodense lesions on abdominal CT cheap lipitor 20mg with amex cholesterol lowering foods almonds. Treatment with erythromy- cin or doxycycline usually results in rapid improvement effective lipitor 5mg cholesterol lowering with diet; this treatment should be con- tinued for 2 months. Relapses are frequent after discontinuance of therapy, and some patients need lifelong treatment with tetracycline or a macrolide for disease control. A 15-year-old girl who works as a veterinary technician presents to clinic with complaints of painful swelling under her right arm that developed over the past 10 to 14 days. The swelling has been accom- panied by low-grade fever, fatigue, and headache. She was previously healthy and is receiving no med- 36 BOARD REVIEW ications other than acetaminophen. On examination, you note a 3 by 3 cm tender lymph node in the right axilla, with overlying erythema and slight fluctuance. There is a small healing pustule on the dor- sum of the right hand and several superficial linear abrasions over both forearms. Which of the following statements regarding this infection is true? Encephalitis, seizures, and coma are well-recognized sequelae of the illness B. Tissue aspirated from an affected lymph node is likely to reveal acid-fast bacilli C. Symptoms are unlikely to improve in the absence of sustained antimicrobial therapy D. Skin testing for a reaction to the causative organism is the diagnos- tic procedure of choice E. Person-to-person spread of the illness is a common mode of transmission Key Concept/Objective: To recognize cat-scratch disease (CSD) and its manifestations CSD is one of several diseases caused by Bartonella species, which are small, fastidious gram-negative rods. After the scratch or bite of a cat (typically a kitten), a primary cutaneous papule or pustule typi- cally develops at the site of inoculation. Although in immunocompetent hosts the disease usually self-resolves within weeks to months, well-described neurologic complications occur in a minority of patients; these complications include encephalitis, seizures, and even coma. Another atypical presen- tation of the disease is Parinaud oculoglandular syndrome, which consists of granulo- matous conjunctivitis and preauricular lymphadenitis. The differential diagnosis for CSD includes tularemia, mycobacterial infections, plague, brucellosis, sporotrichosis, and lymphogranuloma venereum. Diagnosis is often clinical but can be confirmed by demonstration of antibodies directed against B. Serologic studies have largely supplanted the use of CSD skin testing. Symptoms generally resolve without antimi- crobial therapy. Only azithromycin has been demonstrated in a clinical trial to hasten resolution of lymphadenopathy in typical cases of CSD. A 24-year-old man from sub-Saharan Africa comes to your office to establish primary care. He has been blind since 20 years of age because of a recurrent eye infection. The infection is caused by Chlamydia trachomatis, which is an intracellular pathogen B. The organism causing blindness in this patient is identical to that causing sexually transmitted diseases such as urethritis and lym- phogranuloma venereum (LGV) C. Chlamydia pneumoniae has been associated with an increased risk of cardiovascular disease D. Chlamydia organisms are widespread in nature and can cause infec- tions in mammals and other animal species 7 INFECTIOUS DISEASE 37 Key Concept/Objective: To understand the clinical presentations of infections caused by differ- ent species of Chlamydia The chlamydiae are widespread obligate intracellular pathogens. These organisms pro- duce a variety of infections in mammals and avian species. One of the best-known chlamydial reservoirs is parrots and parakeets; these birds can be infected (often asymptomatically) by C. Human contact with these animals can cause psittacosis. This patient is likely to have trachoma, the most common cause of pre- ventable blindness in the underdeveloped world. Recurrent episodes of infection cause progressive scarring of the cornea, leading ultimately to blindness. In different serotypes, tissue tropism and disease specificity differ.

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A decision tree should be accompanied by a description of the strength of the evidence on which it has been developed order 10 mg lipitor fast delivery cholesterol lowering foods olive oil, as well as a description of the settings and/or patient population to which it relates discount lipitor 5 mg mastercard cholesterol medication and kidney disease. Clinical decision (or prediction) rules provide another support for clinical reasoning. Clinical decision rules are evidence-based resources, which provide probabilistic statements regarding the likelihood that a condition exists if certain variables are met and/or the prog- nosis of patients with specific findings. Decision rules use mathematical models and are Copyright © 2006 F. Assessment and Clinical Decision-Making: An Overview 7 Box 1-1 Online Sources of Medical Calculators Emergency Medicine on the Web: www. They are used to express the diagnostic statistics described earlier. The number of decision, or predictive, rules is growing, and select examples have been included in the text. For instance, the Ottawa ankle and foot rules are described in the discussion of musculoskeletal pain in Chapter 13. The Gail model, a well-established rule relevant to screening for breast cancer is discussed in Chapter 8. Many of the rules involve complex mathematical calculations, but others are simple. In addition to discussions of tools in the text, there are several sources of electronic “calculators,” based on rules. Box 1-1 includes a limited list of sites with clin- ical prediction calculators. These resources should be accompanied with information describing the methods by which the rule was validated. Clinical practice guidelines have also been developed for the assessment and diagnosis of various conditions. They are typically developed by national advisory panels of clinical experts who base the guidelines on the best available evidence. An easily accessible source of evidence-based guidelines is the National Guideline Clearinghouse, which provides summaries of individual guidelines, as well as syntheses and comparisons on topics if mul- tiple guidelines are available. Like decision trees and diagnostic rules, guidelines should be accompanied by a description of their supporting evidence and the situations in which they should be applied. These resources are not without limitations, and it is essential that they be applied in the situations for which they were intended. In applying these to clinical situations, it is essential that the diagnostician determine the population in which the tool was developed and that it is applicable to the case at hand, as well as have accurate data to consider in their application. For instance, a clinical prediction rule based on a population of young adult college students is not valid if applied to an elderly patient. The provider must also recog- nize that these resources are intended to assist in the interpretation of a range of clinical evidence relevant to a particular problem, but that they are not intended to take the place of clinical judgment, which rests with the provider. THE DIAGNOSTIC PROCESS As noted earlier, the process of diagnostic reasoning begins when the patient is first encoun- tered. As data is collected through the history and physical examination, providers tailor their approach to subsequent data collection. They begin to detect patterns that guide the Copyright © 2006 F. This means that conditions considered are those that most commonly cause the perceived cluster of data (probability), as well as conditions that may be less common, but would require urgent detection and action (prognosis). Several adages are frequently used when teaching health assessment, to encourage novice diagnosticians to always consider clinical explanations that are most likely to explain a patient’s situation. For instance, students often hear that, “Common diseases occur com- monly. This text describes common conditions that should be considered in the differential diagnosis of common complaints, as well as some of the less common pos- sibilities. With the emergence of conditions, zebras may well be responsible for findings and providers must always maintain some level of suspicion for these less common expla- nations. Moreover, even though it is definitely appropriate that conditions with high probabili- ties be considered in the differential diagnosis, it is also vital that those conditions that put the patient at the highest risk also be considered in the diagnostic process. To do otherwise places the patient in jeopardy of life-threatening or disabling complications. These life- threatening situations are often referred to as “red flags,” which are clues signaling a high likelihood of an urgent situation, requiring immediate identification and management. This text also includes red flags for the various systems to promote their recognition in clin- ical practice. As the potential list of conditions in the differential diagnosis develops, the provider determines what, if any, diagnostic studies are warranted to confirm or rule out specific diagnoses.

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Length joint: Assessment of the changes in in-situ strain in the and torsion of the lower limb quality lipitor 5mg cholesterol lowering foods spanish. J Bone Joint Surg 1997 discount 20 mg lipitor otc cholesterol percentage in eggs; peripatellar retinaculum and the patellofemoral con- 79-B: 1019–1023. Takai, S, K Sakakida, F Yamashita, F Suzu, and F Izuta. Rotational alignment of the lower limb in osteoarthritis 29. J Orthop Sports Phys Ther 2003; 33: after interlocked nailing of unstable femoral fractures. The association between tibial torsion and lower limbs in femoro-patellar disequilibrium: Analysis knee joint pathology. Lösel, S, MJ Burgess-Milliron, LJ Micheli, and CJ Edington. J Bone Joint Surg 1987; 69- A simplified technique for determining foot progres- A: 873–880. The major attractions chondral defects of the patellofemoral surfaces of the mosaicplasty are the ease of the one-step represents an ongoing challenge for the orthope- procedure, relatively brief rehabilitation period, dic surgeon. Treatment options for such full- excellent clinical outcome, and low cost. Combination of different cartilage repair sents a promising option in the treatment of techniques and appropriate treatment of the larger full-thickness defects. It does require a underlying biomechanical factors should repre- relatively expensive two-step procedure and sent the adequate treatment strategy for these longer rehabilitation period, but it seems to be problematic lesions. Similar to other techniques, patellotrochlear large part on the poor biomechanical characteris- use of the chondrocyte transplantation results tics of the fibrocartilage reparative tissue. During in less favorable clinical outcome compared the last decade, efforts have focused on ways to with femoral condylar application. These burgeoning new tation of mushroom-shaped osteochondral allo- methodologies embrace several surgical proce- grafts are elected cases of advanced degenerative dures: autologous osteochondral transplantation lesions of the patellar surface. The possible indi- methods (including osteochondral mosaic- cations for perichondrial flapping, biomaterials, plasty); chondrocyte implantation; periosteal and transplantation of engineered tissues have and perichondrial resurfacement; allograft trans- to be cleared. Full-thickness cartilage damage of the patel- Experimental background, operative techniques, lotrochlear junction can involve associated and clinical results of these new procedures are problems, not infrequently traumatic or biome- detailed in this overview. Congenital shape anomalies The early and medium-term experiences with of the patellotrochlear surfaces, traction mal- these techniques have provoked a cautious opti- alignment problems, patellofemoral hyperpres- mism among basic researchers and clinicians sion, as well as posttraumatic disorders represent alike. Autologous osteochondral mosaicplasty the most common background of symptomatic can be an alternative in the treatment of small deep cartilage lesions of the patellofemoral and medium-sized full-thickness lesions, not junction. Recognition and treatment of these 201 202 Etiopathogenic Bases and Therapeutic Implications abnormalities are essential to ensure a favorable matrix, and water plays a major role in the and enduring outcome. Effective treatment of unique mechanical properties of the hyaline car- full-thickness defects on the patellotrochlear tilage. Proteo- As regards cartilage lesions, the patellotrochlear glycan monomers and aggregates consisting of a junction represents one of the main problematic central protein core and several bounded sul- areas of the knee joint. This articulation serves fated glycoseaminoglycans are electronically often as a beginning point of further degenera- active chains. Mild or medium-grade damage of cations and water, and on the other hand the the patellar or trochlear chondral surfaces can be glycoseaminoglycan side chains repel each initiative factors in early osteoarthritis. This interactive feature keeps the mole- treatment of deep cartilage damage of this com- cules in a distended state. Proteoglycans tend to partment has an essential role in the prevention absorb a very high amount of water. In the nor- of a certain part of osteoarthritic problems. Consequent to this process, the car- ences have already made it clear that cartilage tilage will loose its elasticity and became damage of the patellofemoral articulation has softer. Presence of “compressive effect” on the partially hydrated these disadvantageous aspects of the patel- glycoseaminoglycan chains. The three-dimen- lotrochlear junction requires a sensitive diag- sional structure of collagen network in the hya- nostical approach, very well-planned treatment line cartilage consists of 90–95% type II strategy, and a demanding rehabilitation. Articular cartilage represents a well-organized This highly organized collagen network confers complex structure that provides an excellent high biomechanical value for the hyaline cartilage conduit for pain-free motion in the joint and tol- particularly during compressive and shear stress. Living cells of this tissue are stitial fluid can flow back to its original place. This the hyaline cartilage and therefore the solid phase complex arrangement contains mainly different – in case of “normal loading” – is protected from types of proteoglycans, collagens and other pro- permanent deformation. Not only does this teins in combination with water and elec- biphasic nature promote tolerance of intensive trolytes. This relatively high of the fluid for the nutrition of cartilage and amount of water contributes to nutrition of the metabolic activities of the chondrocytes. The dynamic alliance of cells, this highly organized tissue. They produce the Treatment of Symptomatic Deep Cartilage Defects of the Patella and Trochlea with and without Patellofemoral Malalignment 203 extracellular matrix and later maintain the home- eliminating the effect of such inhibitors demon- ostasis of the entire structure.

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