Clinical and Experimental Observations with Regard to the Injection of Certain Agents (Pregl's Solution) into Chronic Arthritic Joints

J.E.M. (Tommy) Thomson was born in Los Angeles, California in 1989, of “pious and scholarly” parents with “evangelistic…interests” [3]. His grandfather had been a missionary bishop in the Methodist Church. He attended Evanston Academy and then Northwestern University. While he began his medical studies at Texas Christian College, he completed his medical education at Rush Medical College in 1915. He took an internship in Chicago, where his mentors reportedly included Drs. Edwin Ryerson (first President of the AAOS), John Ridlon, and Dallas Phemister [3]. In 1916 he began medical practice with H. Winnett Orr in Lincoln, Nebraska. During WW I he served in the University of Nebraska Overseas Base Hospital No. 49. He returned to practice after the war in 1919 and remained in Lincoln during his professional life. In addition to his professional interests, he and his wife shared an interest in cattle breeding and for a while had extensive ranching interests in Nebraska. The last few years of his life were spent in semiretirement in Rancho Santa Fe, California. Dr. Thomson traveled widely and made many friends worldwide. In 1955 he took a trip around the world but he had many other travels and was an honorary member of a number of foreign orthopaedic societies including the Czechoslovakian Orthopaedic Society, The Polish Orthopaedic and Trauma Society, the Finnish Orthopaedic Association, and the Latin American Society of Orthopaedics and Traumatology. Dr. Thomson traveled to all continents except Australia. He was a founding member of the Orthopaedic Research society. As with a number of the early offices of the AAOS, Dr. Thomson was active in the American Orthopaedic Association and the Clinical Orthopaedic Society and served as President of the latter in 1936. The Instructional Course Lectures were evidently his “brainchild” [3]. The record is unclear of the beginnings, although they evidently arose out of motion picture exhibits. What is clear is the first Instructional Course Lectures were presented in 1942 and published in 1943 with Dr. Thomson as editor. At the 1946 annual meeting, Dr. Thomson was selected to “establish and monitor the Instructional Course Lectures” [2]. He continued to serve as editor of the published Instructional Course Lectures until 1948. One account suggests the idea of a central office was his, and that he personally furnished a temporary central office in Lincoln until permanent headquarters could be established [1]. He was a man of great energy and bearing. In his Presidential Lecture he commented, “There is an old saying - you can't make a silk purse out of a pig's ear. I sometimes feel that in our post-war fervor, in behalf of the veterans separated from military service, we tend to encourage some conscientious young men to enter a field of training for which they are totally unsuited.” Despite infirmities in his last years (he had bilateral hip prostheses), he continued to be active, and died while giving lectures at the University of Kansas (“as he would have wished ‘with his boots on.’” [3]). The article we reprint here reflects Thomson's innovative thinking. Surgical alternatives for chronic arthritis were not well developed in 1932 and Thomson explored a method described by Pregl of Vienna [4]. Pregl injected a “secret preparation” that was a “non-irritating, non-staining, watery solution of free and combined iodine with certain idodides.” Thomson described his own similar solution, and used two to five injections spaced five to seven days apart. He reported the results in 15 patients, most with undefined or posttraumatic arthritis, but one with gonorrheal and one with likely acute joint sepsis, and two with bursitis (olecranon and prepatellar). He further produced experimental arthritis in four rabbits by injection of microbes or a dilute carbolic acid solution. Two to four weeks later, he injected Pregl's solution and noted resolution. His observations, he concluded, warranted “further investigation and a more general use of Pregl's solution in treating chronic effusion of arthritic and traumatized joints.”Figure: J.E.M. Thomson, MD is shown. Photograph is reproduced with permission and ©American Academy of Orthopaedic Surgeons. Fifty Years of Progress, 1983.References 1. Heck CV. Commemorative Volume 1933-1983 Fifty Years of Progress. Chicago, IL: American Academy of Orthopaedic Surgeons; 1983. 2. Heck CV. Fifty Years of Progress: In Recognition of the 50th Anniversary of the American Academy of Orthopaedic Surgeons. Chicago, IL: American Academy of Orthopaedic Surgeons; 1983. 3. James E. M. Thomson 1889-1962. J Bone Joint Surg Am. 1963;45:206-208. 4. Thomson JEM. Clinical and experimental observations with regard to the injection of certain agents (Pregl's solution) into chronic arthritic joints. J Bone Joint Surg Am. 1933;15:483-490. Chronic arthritis with persistent effusion and thickening of the capsule, whether due to infection or injury, or both, often defies the ordinary methods of treatment and proves disabling. Frequently, patients come with the story of painful swelling of the knee which has been constant for months, perhaps starting with an attack of rheumatism, a fall, or a sprain. The joint has become progressively larger, stiffer, and more disabling. Certain of these conditions which are due to mechanical derangement of the knee cartilage, ligaments, etc., must be treated surgically for the correction of the derangement; even these cases often present a convalescence associated with chronic swelling of the joint. A small group of chronic infectious arthritis patients are benefited by synovectomy. It is difficult, however, to determine what cases are suitable for this treatment; but, if it could be accurately determined at what stage in the progress of an infectious arthritis the operation is indicated, the results would be gratifying. The operation has a definite field of usefulness, but, as Swett and others have indicated, it is not a panacea. The results of injections have been uncertain. Occasionally there has been a decided shrinking in the size of the swelling and diminution of the secretion within the knee with relief of these symptoms, particularly when accompanied by accurate treatment of the arthritic process. Subsequent observations seem to justify the opinion that there is a mechanical or chemical reaction caused by the pathological phenomena of increased synovial secretion that has a retarding effect on the healing process of the arthritic joint. Furthermore, if some substance could be brought in contact with the synovia that would tend to diminish its secretion and shrink the tissue substance within the joint, there would be relief of the symptoms of distention, and of the mechanical irritation of the pathological synovial formations; and, by producing a more normal joint relationship of tissues, a better opportunity would be afforded by immunization, medication, physiotherapy, etc., to render an effective result. My attention has been directed to Pregl's solution with which, in the clinics of Vienna, rather striking results have been obtained in the treatment of empyema, meningitis, and gonorrhoeal arthritis. This solution appeared first as a secret preparation, described by Pregl in 1919 as a non-irritating, non-staining, watery solution of free and combined iodin with certain iodides. He advocated its use in infections of all kinds, and it has been used by a large number of observers. A résumé of the recent observations in regard to the therapeutic value of Pregl's solution convinced me that its introduction into the joints would at least do no harm; furthermore, that the antiseptic properties and the astringent qualities exhibited by this iodin solution might prove valuable in treating chronic synovial effusions associated with chronic arthritis. I had as a patient a doctor who, following an injury on the golf course, sustained a disabling swelling of an old arthritic knee joint. This condition had persisted for several weeks. He was willing to try anything; so with great temerity I drew out some clear, straw-colored fluid from the knee and injected five cubic centimeters of Pregl's solution. The result was indeed commendable. Within twenty-four hours he was better and the effusion remained markedly diminished. After three injections, five to seven days apart, the effusion had entirely disappeared and he started east on a trip. To date he has had no return of his former condition. With this initial experience, a second case was tried with an equally gratifying result. The effusion seemed to melt away; or, at least, with each injection less effusion resulted, until finally practically normal contour was established in the joint. Unfortunately, no photographs have as yet been taken of any of our patients before or after treatment. Case histories themselves must tell the story. The formula used in the method of preparation of the solution which I use is as follows:1 To a solution of crystallized sodium carbonate sixteen grams to thirty grams of water, add three grams of finely powdered iodin and allow it to stand for twenty-four hours, rotating frequently, or warm to forty degrees, centigrade, on a water bath. When all the iodin is in solution, add four grams of sodium chlorid and water to make one liter. Bring this to .035-.04 per cent. iodin by gently warming the solution, or part of it, until twenty cubic centimeters is decolorized by .55-.65 cubic centimeters of tenth normal sodium thiosulphate; or until the tint is the same, in equal liquid depth, as that obtained by a mixture of ten drops of tenth normal iodin and fifteen cubic centimeters of water. The Pregl's solution may be injected into the knee joint, with the patient in the prone or the sitting position. When possible, it is preferable to have the patient sitting with the affected thigh flexed on the abdomen, and the patient's hands clasping the flexed leg on the thigh. This position separates the joint surfaces and places the effusion under considerable tension, thereby making it much easier to remove. It is not at all difficult to insert the aspirating needle into the joint from a point one-half inch internal to the lower patellar tendon, and half an inch above the articulating margin of the tibia. After painting a small area with iodin, two cubic centimeters of one per cent. novocain are used to infiltrate the tissues down to and through the capsules; the aspirating needle is then inserted into the joint with little discomfort and the effusion withdrawn. No effort is made to remove all the synovial fluid. Into a small syringe are drawn five or ten cubic centimeters of Pregl's solution warmed to body temperature. This is injected into the joint, the needle removed, a small dressing applied, and the patient allowed to go about his business as usual.Table 1: Summary of cases with Pregl's solutionNo reaction has been noted either of a general or local type. Sometimes a patient will complain of pain and discomfort for the first few hours; after that considerable relief is expressed uniformly. In five to seven days this procedure is repeated, and usually two to five injections are sufficient to stop the effusion and relieve the symptoms. Thirteen cases are summarized in the table. The synovial fluid withdrawn in each instance was cultured, and no growth occurred in a single instance. The following brief survey of two cases is illustrative of the uniform results obtained in the series summarized. The first case is one in which arthritis is complicated by injury; the second is of undetermined etiology. Case 1. (No. 0267.) Miss H., female, aged thirty, dietitian by occupation, had had an old arthritis in the right knee for many years. She slipped on the dance floor of the club in which she was employed, severely injuring the knee. She had all the symptoms of injury to the internal semilunar cartilage. On June 16, 1931, operation was performed. The cartilage was removed and was of the “bucket-handle” type. There was a destructive change in the cartilage surface of the condyles, and a generalized synovial pannus. Exploration of the outer side of the knee showed no evidence of injury to the external cartilage, but a similar arthritic process existed. She had an uneventful convalescence from the operation, and the wound healed by first intention. She continued to have swelling and profound disability and inability to use the knee. After four and a half months of physiotherapy and treatment of the arthritis, on October 3, 1931, twenty cubic centimeters of clear, straw-colored fluid were withdrawn from the knee, and five cubic centimeters of Pregl's solution were injected. Injections were continued at irregular intervals until April 18, 1932, there being sixteen injections in all. We were unable to withdraw any fluid at the occasion of the seventh injection. Function of the knee is very markedly improved, and she has a range of motion to eighty per cent. The knee is still quite thickened, but, as the knee has been enlarged for two or three years, it is a little difficult to tell how much shrinkage will result. Two months after the operation she resumed her duties, although she wore a brace until about four months ago. The effusion has entirely disappeared; she is much improved, and has no pain or discomfort in the knee. This has been by far the most serious case I have treated, and one which showed absolutely no progress until injections of Pregl's solution were started. She has received no treatment since the first part of April. Prior to that time she had come in occasionally and desired another injection of Pregl's solution as it seemed to give a certain amount of relief of discomfort in the knee. In this case, under ordinary circumstances, I would have performed a synovectomy, but she would not consent to an operative procedure.Fig. 1: Rabbit No. L. Knee Joint No. 21 treated with Pregl's solution shows much less hypertrophy of the synovia and pannus than the untreated Knee Joint No. 29. There was considerable erosion of the cartilage in Knee Joint No. 29, whereas cartilage of No. 21 was smooth.Fig. 2: Rabbit No. N. Note the marked difference in the synovia and cartilage edges between Knee Joint No. 9, which was treated with Pregl's solution, and Knee Joint No. 3, in which no treatment was administered. No. 3 was extremely red, thickened, with extension of synovia over the femur with adhesions on the inner aspect, frayed margins, and destruction of the cartilage along the edges of the condyle as well as of the patella; while No. 9 had a clean, bright, normal-appearing synovia and the cartilage injury was apparently healing.Case 2. Dorothy E. (City Clinic), female, aged fourteen. For six months she had had persistent swelling in the right more than the She was with some and swelling with for and were from the effusion were She was under for three or four six weeks twenty-four cubic centimeters of clear, straw-colored fluid were drawn from the right knee and seven cubic centimeters of Pregl's solution were injected. After five injections the right knee had normal and the swelling of the knee had remained was during this rather Two weeks the knee was and injected with Pregl's solution, and was at the time of the second injection. one of our more recent she has most in that a similar condition in with a chronic effusion that had over six accurate has not been but, until this treatment was the condition had become progressively The right knee, which was the more severely was treated for five weeks with the result that it had normal while the knee remained the Pregl's solution has been injected into the knee, with the result that the effusion has have normal contour and and the patient has no discomfort or The of the value of Pregl's solution in the first few cases of chronic or effusion associated with and arthritis, me to an experimental to determine the effect of the solution on the joints of rabbits affected with similar pathological This was started in 1931, and out in the experimental of the Lincoln Hospital with the of Dr. and Miss We to the methods of arthritis and developed by and was and few could be with at a we have not very far with this To date sixteen rabbits have been but, in to out the four were brought to a sufficient to allow a of the results Rabbit No. Knee Joint No. was treated with Pregl's solution, four injections, while Knee Joint No. was of joints was before treatment was started. Knee Joint No. into which the Pregl's solution was injected showed marked healing of the there was but little healing of the while the synovia of knee Joint No. which was was very much thickened, red, and and was with a was produced by two by infection into the joint by introduction of one-half of a cubic of one per cent. carbolic solution and one-half of In most a of two to four weeks between the operative and the of treatment. were out under On account of the that we similar conditions in knee joints of the an was performed before treatment was in to determine whether the condition of joints was one joint was treated with Pregl's solution and the other allowed to treatment. far have been In No. was into knee joints. Two weeks the was performed and there was a profound pannus and in synovia with about the joint surfaces of the appeared the The of the were 21 and 29. The knee joint of No. 21 was injected with one and one-half cubic centimeters of Pregl's solution three days following the three or four days a similar amount of Pregl's solution was At the of four weeks the developed a infection and was There was marked synovial change and the knee joint of knee joint No. 21 with showed much less hypertrophy and pannus of the the joint had which but there was some cartilage erosion of the similar to No. 29. No. a young weeks had an in which No. 3 had the synovia and about the of the joint. In the knee of No. 9 a was taken out of the external condyle and the synovial edges about the joint were Two weeks was performed. joints seemed extremely red, and pannus the joints with marked of synovial fluid. The knee joint of No. 9 was treated with Pregl's solution three to five days for three weeks. The was then There was quite difference between the synovia of the treated and untreated joints. The knee joint of No. 3, showed a and extension of synovia over the femur with adhesions about the inner of the knee. the knee joint of No. 9 had a synovia similar to a normal knee joint. The cartilage appeared to be but with considerable thickening at the Rabbit No. Knee Joint No. after treatment with Pregl's solution appeared practically while Knee Joint No. which was showed considerable of cartilage and synovial No. was a young weeks knee joints were injected with a of Two weeks after injection was joints were extremely and was made to remove the effusion by but the could not be withdrawn. was performed in this instance and the fluid withdrawn. Knee joint of No. was treated with Pregl's solution three to five while the knee joint of No. was the developed a generalized and died three weeks after treatment was started. the cartilage of the of joints was there was considerable pannus thickening of the synovia about the of the knee joint of No. The synovia of the knee joint of No. was in no thickened, although it give evidence of an extensive process. Rabbit No. had an of with injury to the external The were with ten per cent. carbolic acid and the knee of No. was and with Pregl's solution to the No. was after the carbolic and iodin had been in the joint. treatment was started on No. and was continued at intervals of from three to five days for six weeks. The result was quite The knee into which the Pregl's solution was injected after the injury and chemical was practically but the knee which was not treated showed extensive of cartilage. there are several of in experimental have not been in any of these joints. there to be in the use of Pregl's solution that quite the even in the of to the that it apparently an or diminution of synovial secretion with an or shrinking of the very an infectious process and perhaps cartilage this experimental is in no and the but a small group of the in results between the cases and the experimental to further investigation and a more general use of Pregl's solution in treating chronic effusion of arthritic and traumatized joints.

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