Q. Jens. Regis University.
These are Vascular Anomalies not often present at birth but become apparent as the child develops buy generic apcalis sx 20mg. They are often characterized Vascular anomalies are one of the more common according to the internal ﬂow rate cheap 20mg apcalis sx with visa. The classification of these Fast-ﬂowing lesions are arteriovenous malforma- lesions is complex. The elements that proliferate lesions are venous, capillary and lymphatic in may arise from the smooth muscle or endothelium composition. Imaging can determine the flow rate The most well known lymphatic malformation is of such vessels and therefore imaging classifications the cystic hygroma which occurs most commonly are based on slow or fast “flow”. These show large ﬂuid- We divide the abnormalities into (1) haemangio- ﬁlled spaces that have no ﬂow on US. Vascular anomalies are associated with a variety of 1) Haemangiomas conditions including: Maffucci’s syndrome which These are lined with endothelium and appear has venous malformations, lymphangiomas and shortly after birth, growing rapidly in their multiple exostosis and enchondromas (described proliferative phase and involuting over time by Maffucci in 1881). Klippel–Trénaunay syndrome which as well as They are divided histologically into infantile, cap- having a port-wine stain (or capillary malforma- illary and cellular types. Other rare vascular tumours include infantile Parkes–Weber syndrome has a capillary naevus haemangiopericytoma, spindle cell haemangio- with arteriovenous ﬁstulas and varicosities endothelioma and kaposiform haemangioendo- (described by Weber in 1918). Proteus syndrome has a capillary naevus with Kasabach-Merritt syndrome is associated with lipohaemangiomas, lipomas, epidermal naevi, the last two lesions and thrombocytopenia and lymphangiomas, intraabdominal lipomatosis and anaemia with disorders of clotting. The vascular endothelium is stable in these lesions Blue rubber bleb naevus syndrome has involve- and they are made up of arteries, veins, capillar- ment of the gastrointestinal tract and skin with ies, lymphatics and a combination of all of these. They are usually sporadic in appearance but can Soft Tissue Tumours in Children 77 a Fig. The patient also had a visible purple skin blemish b Superficial capillary malformations cannot perform, with no need for sedation. If the child be seen on MRI and are just noted as an area of cries during the examination this can be an added increased subcutaneous fat. They are also associated bonus as the flow through a vascular lesion can be with Sturge-Weber syndrome which has more enhanced! Doppler signal on US will be dependent on the flow of blood within a lesion. Sometimes if the blood Infection flow is low, then compression of the probe on the skin or of the distal limb may be needed to confirm the In bone infection a periosteal reaction may be seen vascularity. Colour Doppler will show the presence of in the early phases of osteomyelitis when little is large feeding vessels and at what depth the lesion lies. However, the opposite is Superficial vascular lesions will give a bluish hue to not true; early infection does not always produce a the skin. There may be areas of calcification due to demonstrable periosteal elevation. An abscess can phleboliths and these will be detected on US as highly identified as a fluid collection. Although the lesion reflective areas with a little acoustic shadowing may contain “solid” echoes, it is well circumscribed behind. A sinus may be seen as a low most common, US is also the easiest imaging to echo track between areas of abnormal tissue. There are approximately 100 benign lesions patient has an MRI examination as the patient is to 1 malignant lesion. The most common soft tissue placed in the supine position and the lump disap- sarcoma is the rhabdomyosarcoma, and second is pears. They are derived from author has even had patients whose lumps are only primitive mesenchymal tissue which probably has visible on standing after a run just prior to the US an association with skeletal muscle embryogenesis. There is great relief to both the Synovial sarcoma, despite its name, is unrelated to family and patient when a definite diagnosis can the synovium of joints and can be found anywhere in be made, and for this problem only US will give the body, but most commonly in the lower extremi- the answer! The bone lesion that can invasion but will not be as useful as MR in pro- cause soft tissue swelling is the soft tissue extension viding local staging which is essential for surgical of a Ewing’s sarcoma. US is used in the assessment of the carti- peripheral nerve sheath tumours are rare. When dence of abnormal vascularity alone cannot deter- the cartilage cap is greater than 3 cm in a child then mine whether a lesion is benign or malignant. They there is an increased suspicion of malignant trans- are solid lesions and therefore have a mixed echo formation into a chondrosarcoma. They may contain calcification and then US can be used to biopsy such a lesion, but once the they have “bright” echoes within them. This is not only possible also have “cystic” areas which are due to necrosis. Soft Tissue Tumours in Children 81 Liposarcoma is a rare lesion in childhood. They are there is soft tissue extension or a cortical defect, US surprisingly avascular on imaging. A neurofibroma is a lesion of low echo- size, causes pain, invades muscle or is heterogeneous, genicity. It may have a characteristic “ring” or target then malignancy should be suspected. Any large lesion sign with an area of higher echogenicity within the lower on US that does not fulfil all the criteria given in the echogenicity of the outer ring due to the interface lipoma section above should be imaged with MR and a of the hypoechoic tumour and the hyperechoic nerve biopsy guided by US should be undertaken. The excellent resolution of US can define Metastasis from endocrine neuroblastoma and the nerve from which these lesions arise. If the gain set- renal nephroblastoma (Wilms’ tumours) are most tings are too low a neural tumour may look like a cyst common.
Such x-rays are recorded days to draw up and monitor detailed treatment schedules for the cervical spine (in reclination and inclination) generic 20mg apcalis sx fast delivery, the with any reliability discount apcalis sx 20mg otc. MacKeith, Oxford New York The non-invasive imaging technique of sonography is 3. Sutherland DH, Olshen RA, Biden EN, Wyatt MP (1988) The devel- based on the interaction between transmitted sound opment of mature walking. In pediatric orthopaedics, sonography is primarily used A CT scanner consists of a gantry that incorporates a for evaluating the infant hip (see chapter 3. It is also rotating x-ray tube and image sensors (detectors), the frequently used in swellings, protuberances and effusions patient table and a computer for processing the data. The CT software converts the x-ray attenuation passing Doppler sonography is used to investigate the circulation through the tissue into a CT density value (known as a in an extremity. The tissue types of bone, muscle, fat and al angiogram is increasingly being superseded these days water can very readily be distinguished from each other by the MR angiogram and by vascular imaging with spiral on the basis of their densities. Myelogra- CT is an indispensable tool for visualizing bony struc- phy is used to visualize intraspinal processes, particularly tures, especially around joints and in the spine, e. The images are either recorded by the conventional reconstruction, in particular, facilitates the evaluation of technique (rarely) or (increasingly nowadays) by com- structures in space (e. Arthrograms are images of the joint interior recorded The newer spiral CT technique enables volumetric after the intra-articular injection of contrast medium. This technique substantially re- having been superseded by arthro-MRI, which is most duces the scanning times, enhances the resolution and fa- commonly performed on the hip for evaluating lesions of cilitates the preparation of three-dimensional reconstruc- the labrum, or on the knee for visualizing separation in tions. Used in conjunction with contrast administration, osteochondrosis dissecans. The main advan- (SPECT ) tages of this technique arise firstly from the simultaneous This new technique has greatly improved the diagnostic imaging of the whole skeleton and, secondly, from the accuracy in the evaluation of bone and joint abnormali- generation of a metabolic picture, i. SPECT offers enhanced contrast resolution com- is shown in comparison with that of adjacent normal pared to conventional tomograms. Widely differing processes can produce a similar Magnetic resonance imaging (MRI) picture. Magnetic resonance imaging (MRI) is based on the re- Scintigrams, or bone scans, offer a suitable screening emission of an absorbed high-frequency signal (RF signal) method for tumors and infections. Technetium (Tc-99m- while the patient remains within a magnetic field gener- MDP) is the generally preferred radioisotope, and indi- ated by a magnet with a magnetic strength of 0. The system consists of the magnet, high-frequency gallium-67-citrate is suitable for confirming therapeutic coils (transmitter and receiver), gradient coils and a digi- success or resistance. If cortical bone appears to be The ability to depict tissues is based on the intrinsic thickened on a plain x-ray, the bone scan can, depending magnetic moment (spin) of atomic nuclei with an odd on the appearance in each case, indicate whether an oste- number of protons and neutrons (e. The atomic nuclei then irregular, uptake) or a stress fracture (localized, but not align themselves parallel to the magnetic field lines. For tumors, scintigraphy beamed pulses of high-frequency radio waves cause the can be used on the one hand to assess the activity of the atomic nuclei to absorb energy, inducing the nuclei to process and, on the other, to scan for metastases. The spin and that nerves and tissues can be distinguished from echo (SE) produces a t1-weighted image with a short other tissue types. Proton-weighted A crucial factor to consider in the application of diag- images have a long repetition time and a short echo time nostic imaging is whether a method requires a high or (⊡ Table 2. The IR sequences (»inversion recovery«) can be used As a matter of principle, therefore, ultrasound and MRI to shorten the scanning times in multiplanar images. If scans are preferred over conventional x-rays and CT a short inversion time (TI) in the range of 100–150 ms scans if the diagnostic result is equivalent. This aspect of is used, the signal intensity of fatty tissues is suppressed. A similar result is also achieved with rastersterography (optical measurement of the back pro- the CHESS sequence(= chemical suppression). Recently, the fat suppression techniques have been has its own radiation protection regulations that form combined with three-dimensional gradient echo imag- ing (GRE = gradient recalled echo), which provides an enhanced view of joint cartilage. Tissue characterization based on the is administered intravenously it is taken up at sites of weighing on MRI images activity, e. Tissue structures can also be seen more clearly after the intra-articular administration of gadolinium. Fat ++ ++ + The appearance of contrast medium flowing beneath Bone marrow ++ ++ + a dissected flap in a case of osteochondrosis dissecans confirms the fact that separation has occurred. Arthro- Muscle +– + +– MRI also facilitates better evaluation of a labrum lesion Hyaline cartilage of the hip. Fibrocartilage – – – Tissue characterization is essentially achieved by the differing weighting of the MRI images (⊡ Table 2. Ligaments, tendons – – – Different weightings are obtained depending on the Cortical bone – – – relationship between the two parameters of repetition time (TR) and echo time (TE). Comparing the images Synovial fluid +– + ++ with differing weightings enables the tissue type to be Infiltrates, edema +– + ++ evaluated on the basis of the signal intensity (or bright- Nerve tissue ++ ++ ++ ness) of the structures (⊡ Table 2. Weighting of MRI images Ratio of repetition/echo time Repetition time (TR) (approx. An important consideration in this Radiation Protection (ICRP) in 1977 and the WHO Study context is the coordination of the emitted light quality. A general principle applies: Doses of Green-emitting screens will only achieve the desired ef- 2 ionizing radiation used in humans should be kept as low fect in combination with green-sensitive films. The specific radia- tion protection measures will be discussed in detail in the Gonad protection relevant x-ray investigations. Gonad protection is always used provided it does not con- ceal any diagnostically important structures, i. A few generally valid guidelines of relevance to orthopae- Parts of this chapter (primarily concerning radiation pro- dic diagnostics are mentioned below.
PHYSICAL MODALITIES cheap 20mg apcalis sx, THERAPEUTIC EXERCISE apcalis sx 20mg with amex, EXTENDED BEDREST, AND AGING EFFECTS. Physical Modalities 553 Therapeutic Exercise 570 Effects of Extended Bedrest—Immobilization and Inactivity 576 Evaluation of Functional Independence 578 Physiologic Effects of Aging 580 9. Pulmonary Rehabilitation 585 Cardiac Rehabilitation 610 Cancer Rehabilitation 628 10. Genetics and Chromosomal Abnormalities 645 Development and Growth 647 xviii CONTENTS Pediatric Limb Deficiencies 653 Diseases of the Bones and Joints 658 Connective Tissue and Joint Disease 669 Pediatric Burns 680 Pediatric Cancers 685 Traumatic Brain Injury (TBI) 688 Cerebral Palsy (CP) 693 Spina Bifida 712 Neuromuscular Disease in Children 721 11. Spasticity 743 Movement Disorders 750 Wheelchairs 759 Multiple Sclerosis (MS) 770 Osteoporosis 777 Rehabilitation of Burn Injuries 791 EPILOGUE. PREFACE The Physical Medicine and Board Review Book will appeal to medical students, residents, and practicing physiatrists. The book concentrates on board-related concepts in the field of Rehabilitation Medicine. Residents will find the book essential in preparing for Part I and Part II of the Physical Medicine and Rehabilitation Board Certification because it is one of the only books of its kind with major focus on board-related material giving a synopsis of up-to- date PM&R orthopedic, neurologic, and general medical information all in one place. In this way, important concepts are clarified and reinforced through illustration. All of the major texts of this specialty have been referenced to give the board examinee the most timely and relevant information and recom- mended reading. It is written in outline form and is about one-third the size of most textbooks. The topics are divided into major subspecialty areas and are authored by physicians with special interests and clinical expertise in the respective sub- jects. Board pearls are highlighted with an open-book icon in the margins of many of the paragraphs. These pearls are aimed at stressing the clinical and board-eligible aspects of the topics. This format was used to assist with last minute preparation for the board examination and was inspired by the Mayo Clinic Internal Medicine Board Review. The contents are modeled after the topic selection of the American Academy of Physical Medicine and Rehabilitation (AAPMR) Self-Directed Medical Knowledge Program [which is used by residents nationwide to prepare for the Self-Assessment Examination (SAE)]. This was done specifically to help all residents, Post Graduate Year 2, 3, 4, in yearly preparation and carryover from the SAE preparation to board exam preparation. All chapters are prepared under the assumption that readers will have studied at length one or more of the standard textbooks of PM&R before studying this review. My hope is that this text is a valuable tool to all physicians preparing for both the written and oral board exams, and also in managing issues of patient care. Practicing physi- atrists should also find this book helpful in preparation for the recertifying exam. Because this is one of the first textbooks designed specifically for PM&R board preparation, the authors welcome any ideas for improvement from any of the readers. The following information was collected and calculated by the ABPM&R and published in the Diplomate News July 2003. In May 2003, the ABPM&R administered the 56th certification examinations to 806 can- didates. With 266 candidates achieving Board certification, the total number of Diplomates rose to 7,460. The table and graph below summarize the results for both the written exam (Part I) and the oral exam (Part II). PART I PART II All Candidates Passed 361 79% 266 76% Failed 97 21% 82 24% First Time 366 314 Passed 328 89. In 1998, the Board began analyzing results based on the content areas in the examina- tion outline for Part I. The Part I exam outline consists of two independent dimensions or content domains, and all test questions are classified into each of these domains. Applied Sciences xxi xxii BOARD CERTIFICATION All Part 1 candidates received performance feedback in the form of scaled scores for each of these content domains. To allow performance in one section to be compared to performance in other sections, the section scores were scaled to fall between 1 and 10. A score of 1 would indicate that a candidate performed no better than chance, while a score of 10 indicates that a candidate answered all questions correctly in that section. According to psychometric data available to the Board following each examination, it is apparent that this year, as in previous years, the sections are not equally difficult for the group as a whole. Candidates in 2003 performed better in the Musculoskeletal Medicine section, while lower scores were recorded in Amputation and Rehabilitation Technology. THE PURPOSE OF CERTIFICATION The intent of the certification process as defined by Member Boards of the ABMS (American Board of Medical Specialties) is to provide assurance to the public that a certified medical specialist has successfully completed an accredited residency training program and an eval- uation, including an examination process, designed to assess the knowledge, experience and skills requisite to the provision of high quality patient care in that specialty. Diplomates of the ABPM&R possess particular qualifications in this specialty. THE EXAMINATION As part of the requirements for certification by the ABPMR, candidates must demonstrate satisfactory performance in an examination conducted by the Board covering the field of PM&R. The examination for certification is given in two parts, computer based (Part I) and oral (Part II). EXAMINATION ADMISSIBILITY REQUIREMENTS Part I Part I of the ABPMR’s certification examination is administered as computer-based testing (CBT). To be admissible to Part I of the Board certification examination, candidates are required to complete at least 48 months of ACGME-accredited postgraduate residency training, of which at least 36 months should be spent in supervised education and clinical practice in an ACGME-accredited PM&R residency training program. Part II Part II of the ABPMR’s certification examination is administered as an oral examination.
As an alternative discount 20mg apcalis sx amex, the tourniquet can be deflated to assess the depth of excision and then reinflated (C) generic 20mg apcalis sx visa. When epinephrine-soaked dressings have been applied to the wound, it is not longer possible to assess the extent of the excision because the wound acquires a cadaveric appearance (D). Some studies have shown a significant decrease in blood loss during burn surgery with their use, although combination with topical or subcutaneous epinephrine renders the best hemostatic effect. Fixation of Skin Grafts and Splinting Many techniques for skin graft fixation are documented in the medical literature. The methods extends from paper tape to fibrin glue, but the most frequently used are metallic staples, resolvable sutures, and bolsters or tie-overs. Skin grafts must not extend over normal skin because that will lead to desiccation and infection. Graft seams need to be overlapped a few millimeters to provide good coaptation and avoid open wounds during the rehabilitation phase. One edge is fixed first, and the graft is then stretched until full tension has been achieved. If the wound is small enough to be covered with one single skin autograft, the opposite edge is fixed before the rest of the graft is sutured. When more than one graft is needed, the next graft is placed beside the previous graft and they are fixed together to provide enough tension to the first skin autograft. A good alternative to staples, although time-consuming, are resolvable stitches. Commonly used suture material is 4/0–5/0 Vycril rapide and Chromic Catgut. They are particularly useful in children (suture removal is not necessary) and in selected anatomical locations (face, hands, feet, genitalia). Key stitches are placed at the corners of the skin graft to maintain tension and location of the skin graft. The rest of the skin graft is then sutured with a running suture technique (with the so-called surgette technique), which provides a good seal of the wound. Bolsters, or tie-over dressings, are often necessary in selected anatomical locations where shearing forces and tridimensional configuration challenge the skin graft’s stabilization. Staples or resolvable suture may be used to fix the skin graft on the wound. The bolster stitches must hold together the skin graft and the surrounding normal skin and the knot should be tighten in the ordinary fashion. Petrolatum-based fine-mesh gauze is applied on the skin graft overlapping 3–4 cm and a cotton bolster embedded in normal saline and liquid paraffin is secured with the bolster stitches. The bolster is then removed in 5 days (7 days for full-thickness grafts) unless purulent discharges are detected before the planned day of removal (Fig. Other techniques that have been used for graft fixation include fibrin glue, resolvable staples, and tape. Perfect positioning of graft site is essential for proper healing in a good functional position. The intervention of rehabilitation services is a key issue to The Small Burn 215 A B FIGURE14 Donor sites are extensive in minor and medium-sized burns, therefore wounds should be always covered with sheet autografts. Good preoperative planning should include postoperative posi- tioning and splinting. Grafts that extend over joints and other anatomical locations (hands, feet, and neck) need proper splinting. A comprehensive plan should be made before surgery, and preliminary splints should be tailored for postoperative positioning. Experts in physiotherapy and occupational therapy are invited to assist and intervene at the end of the operation. After a light protective dressing has been applied, the splints are then molded again to adapt to the anatomical configuration. After completion, they are hold in place with a second external dressing. Splints are revised during the first and consecutive dressing changes and tailored to the specific patient’s needs. Interim pressure garments should be applied as soon as possible when grafts are deemed to be stable (usually within 7 days). Dressings After excision, donor site harvest, hemostasis, and graft fixation are completed, the most crucial part of the operation still must occur. Proper application of protective dressings requires a mastery that can only be acquired through experi- ence and proper training. Burn dressings serve four main purposes: Graft protection Fluid and exudate absorption Creation of a microenvironment that promotes wound healing Patient comfort An ill-dressed burn graft may not serve any of these purposes and, conversely, may promote shearing forces and graft dislodgement. As with any other surgical discipline, it can not be overemphasised that the art of dressing is the final touch that completes the excellence of surgical technique. In general, patients are igno- rant regarding surgery and medicine, and they can not assess the excellence in technique as physicians measure it. They can only assess our mastery in terms of pain control, good outcome (i. A sloppy dressing means a sloppy surgeon and a sloppy surgical technique in the eyes of our patients. During the early postoperative period, the only way patients have to assess a successful operation is to watch the perfection of the dressing and the care that they receive.
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