The treatment of hip diseases by total hip replacement has grown during the past 10 years all over the world, and in our orthopedic society this surgery seems to be growing increasingly. At this polnt it must be important for hip surgeon to have full range of basic knowledge in the total hip implant to avoid unexpected complications. In this article a short history of hip arthroplasty, the inherent defect and basic biomechanical aspect of total hlp are presented. And some preventive measures are also suggested for the inherent defect of total hip implant.
Arthroplasty ; Arthroplasty, Replacement, Hip ; Hip ; Orthopedics

After the success of total hip replacement arthroplasty by John Charnley in 1962, it was well known fact that total hip replacement arthroplasty can be applied to degenerative arthritis, rheumatoid arthritis, post-traumatic arthritis, ankylosing spondylitis, even on the fused hip. However the old dislocated hip gives arise a few problem for its total hip replacement with the follwing causes:, 1. floor of the falad acetabulum is very thin and inadequate to receive a socket. 2. distorted anatomy of the acetabulum and proximal femur. 3. short and atrophic abductor mechanism. Total hip replacement arthroplasty could be successful for the old dislocated hip, if the adequate size of cup ard prosthesis are available and there is adequate length of the hip abductor. Preoperatively we can measure the size of the acetabulum and the distorted femur with roentgenogram. But it is not known how to measure or predict whether or not there is enough length of the abductor muscle mechanism preoperatively. Therefore the question arises how to measure or predict the length of the hip abductor in the old dislocated hip. Although this is a preliminary report, it is our feeling that the more the range of motion the hip has, the better the length of the hip abductor muscle. In our series acetabular socket can be positioned at the original site and the osteomized greater trochanter reduced to the femur easily in the cases more than 190 of total range of motion of the affected hips, The range of motion of the affected hip can be measured preoperatively.
Acetabulum ; Arthritis ; Arthritis, Rheumatoid ; Arthroplasty ; Arthroplasty, Replacement, Hip ; Femur ; Hip ; Osteoarthritis ; Prostheses and Implants ; Range of Motion, Articular ; Spondylitis, Ankylosing

No abstract available.
Mucocele* ; Sphenoid Sinus*

We meniscectomized 27 knees with meniscal lesions for disabling symptoms after the diagnosis by clinical evaluation and arthrography from January, 1970 to May,1979. Statistical analyses were as follows: 1. Male was affected 2 times more than female. The most meniscal lesions occurred in the age group between 10 and 29 years old (67%). 2. The lateral menisci were affected 2 times than the medial. In the former, the middle segments were affected most frequently and in the latter, the posterior horns. 3. The general diagnosis of torn meniscus for the 27 knees was correct by clinical evaluation for 19(71%), by arthrography for 20 (74%) and by two methods for 24 (88%). 4. In the follow-up study, satisfactory results were obtained in. 79%.
Animals ; Arthrography ; Clinical Study ; Diagnosis ; Female ; Follow-Up Studies ; Horns ; Humans ; Knee ; Male ; Menisci, Tibial

No abstract available.
Adenocarcinoma*

No abstract available.

No abstract available.
Organ Transplantation* ; Transplants*

Three main types of operative teehnique are in general use today in the treatment of spondylolysis or spondylolisthesis: namely, total laminectomy alone, total laminectomy and posterior fusion, and anterior interbody fusion. According to Hoover(1968), above operations have yielded satisfactory results in approximately 70% of the cases. In recent years, Watkins, Adkins and Rombold have independently reported their cxperience with posterolateral intertransverse fusion, which they claim is based on a more sound mechanical basis and has yielded better results. The author performed anterior interbody fusion in 4 cases and posterolateral intertransverse fusion in 3 cascs at Seoul Naval Hospital during the 2 year period from May 1968 through May 1970 The postoperative follow-up period was maximum one year and minimum six months. Only one casc of anterior interbody fusion has shown sound fusion, while all ihe three posterolateral intertransverse fusions with posterior H-graft have yielded sound fusion with satisfactory clinical improvement by six months after operation.
Follow-Up Studies ; Laminectomy ; Seoul ; Spondylolisthesis ; Spondylolysis

No abstract available.
Child* ; Epilepsy* ; Humans

Keratinizing desquamative squamous metaplasia of the transitional epithelium occurs rarely in the upper urinary tract, especially in the ureter. It is associated in most cases with long-standing chronic inflammation but the exact pathogenesis is unknown, and the relationship to cancer has continued to be controversial. More cases should be accumulated for a better assessmnt of this lesion. Recently, we experienced a case of keratinizing desquamative squamous metaplasia in the renal pelvis, adjacent calyces and ureter following acute and chronic pyelonephritis. Herein, we are presenting our case with a review of literatures.