[Effect of fused hip joint on the knee joint].
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Adult↗
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Form follows function. Physiologic and pathologic development of the hip joint.
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Arthritis↗
[X-ray morphology of hip-joint arthrosis].
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Hip Joint↗
[Roentgenologic determination of early changes following hip-joint prosthesis].
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Hip Joint↗
Influence of femoral lengthening on hip joint space in posttraumatic femoral shortening.
We performed femoral lengthening for post-traumatic femoral shortening in 14 patients (10 men). The mean age was 26 (17-33) years. The callotasis method was employed using an Orthofix or Hifixator monolateral external fixator. The average length gained was 6 (3-13) cm, equal to 16 (7-36)%. The mean narrowing ratio of the hip joint space during lengthening was 9 (0-26)% and the narrowing persisted at the final follow-up. Cases with narrowing greater than 5% had a longer time between the development of the shortening and the lengthening than the others (p = 0.03). Our findings indicate that femoral lengthening for posttraumatic femoral shortening should be done as early as possible to prevent the development of joint space narrowing during the lengthening procedure.
Adolescent↗
The effects of simulated transverse, anterior column, and posterior column fractures of the acetabulum on the stability of the hip joint.
BACKGROUND: Knowledge of the location of the weight-bearing portion of the acetabulum would assist orthopaedic surgeons in the treatment of acetabular fractures. With use of controlled experimental transverse, anterior column, and posterior column osteotomies, we investigated the weight-bearing region of the acetabulum. METHODS: Twenty-four fresh-frozen cadaveric hip joints were tested. Simulated transverse fractures were evaluated in twelve specimens, and simulated anterior column and posterior column fractures were tested in six specimens each. Each femur and acetabulum was potted and mounted in an aluminum fixture, with the acetabulum positioned in 25 degrees of flexion and 20 degrees of abduction. Each specimen was tested intact and after successive osteotomies. The transverse osteotomies had roof-arc angles of 60, 50, 40, and 30 degrees. The anterior column and posterior column osteotomies were classified as very low, low, intermediate, or high. Compressive loading to 800, 1200, and 1600 newtons was performed four times for each intact specimen and after each osteotomy. A specimen was considered to be stable if no gross dislocation occurred during any of the four loading cycles. Translation of the femur within the acetabulum also was measured during each trial. RESULTS: The number of stable specimens decreased both with higher applied loads and with more superior osteotomies. The stability of the hip was significantly affected by both the location of the fracture and the magnitude of the applied load (p < 0.00005). Translation of the femur within the acetabulum increased with higher applied loads and with more superior osteotomies. CONCLUSIONS: Fractures that have a medial roof-arc angle of 45 degrees or less, an anterior roof-arc angle of 25 degrees or less, or a posterior roof-arc angle of 70 degrees or less cross the weight-bearing portion of the acetabulum and necessitate operative treatment.
Acetabulum↗
[Bilateral traumatic dislocation of the hip joint in a 10-year-old boy].
The author demonstrates a case of bilateral traumatic dislocation of the hip joint in a child. The prerequisite of successful treatment of this injury is early and careful reposition, sufficiently long immobilization of the injured joint, intensive rehabilitation in bed, and elimination of burdening before it is established that avascular necrosis did not develop.
Child↗
Absence of the ligament of head of femur in the human hip joint.
The ligament of the head of the femur was studied by dissection in 40 human cadavers, 5 monkeys, 10 cats and 20 rats over a two-year period. Unlike the situation in the monkeys, cats and rats studied, the ligament was not invariably present in humans. It was absent in 4 of the cadavers studied. In 3 of them, the ligament was absent unilaterally. In the remaining 36 cadavers, the ligament was strong in 26 cadavers, weak in 9 and was torn in one. The present findings suggest that although the ligament transmits an artery to the femoral head in the young, it does not appear to have any important mechanised function in maintaining the stability of the hip joint.
Animals↗
[Arthroses of the hip joint and their treatment. Developments and progress in the area of conservative and surgical therapy].
Osteoarthritis of the hip joint is due either to primary diseases of the articular cartilage or to secondary conditions leading to degenerative changes, for example, pre-arthritic deformities or arthropathies, so-called. Besides conservative treatment with non-steroidal anti-inflammatory drugs and physical therapy, treatment of pre-arthritic deformities by curative osteotomy continues to be of major importance. The introduction of the Rapid Prototyping method considerably improved the preoperative planning and orientation of such procedures. In the case of advanced coxarthrosis, total hip arthroplasty is used, in which, depending on bone biology, cementless procedures are now being employed in addition to the well-proven implantation with cement. Success depends not only on material and shape, but also to a high degree on the surface structure of these cementless implants. In particular three-dimensional interconnecting open-mesh surfaces enable differentiated anchoring of the prosthesis.
Anti-Inflammatory Agents, Non-Steroidal↗
[How accurately can the rotation in the hip joint be estimated from ordinary plain film alone?].
Plain films were taken from 5 adults femura (with different angles of antetorsion) varying the rotation between +70 degrees to -50 degrees. An astonishingly constant relations between the structures of proximal femur and the axis of the femural condyle has been found, independent from the angle of antetorsion. According to our opinion the rotation in an adult hip joint can be estimated with an accuracy of +/- 10% from a.-p. film alone. A simple method for determining the rotation has been suggested and may be put to further discussion.
Adult↗
Prosthetic hip-joint infection associated with a penicillin-tolerant group B streptococcus.
We report a case of prosthetic hip-joint infection with Streptococcus agalactiae (Lancefield group B streptococcus). The infection recurred after 3 months' treatment with amoxycillin. On further investigation, the isolate was found to be amoxycillin-tolerant. Addition of gentamicin abolished tolerance in vitro and the patient has remained asymptomatic since receiving a 10-day course of amoxycillin and gentamicin followed by amoxycillin alone.
Aged↗
[Ipsilateral femoral fractures following artificial hip joint replacement. An unavoidable complication].
During a 22 years period 21 of altogether 5,229 patients with artificial hip-joint replacement had subsequent ipsilateral femur fracture. The avoidance of this complication, its etiology, forms of fracture and therapeutical management are discussed.
Aged↗
Repeatability and reproducibility of distraction indices in PennHIP examinations of the hip joint in dogs.
Repeatability and reproducibility of Distraction Index (DI) measurements in the PennHIP method were evaluated in 100 dogs. The PennHIP distraction views sent to the PennHIP Analysis Center (PAC) were duplicated, digitalised, and identified with a code, and an adequate computer software was used for DI measurements. One examiner performed two DI measurement sessions, evaluating individually 200 hip joints. The scoring repeatability and reproducibility were estimated calculating the Intraclass Correlation Coefficient (ICC) between the two DI measurement sessions and between the second DI measurement session and the DI in PAC reports, respectively. The ICC for repeatability was 0.97 [95% confidence interval (CI), 0.96 to 0.98], and the ICC for reproducibility was 0.95 (95% CI, 0.93 to 0.96). The results suggest that the DI measurement method described is repeatable and can reproduce the PAC reports with confidence. Distraction indices measured in different PennHIP studies, using this DI measurement method and performed by trained researchers, can be considered interchangeable.
Animals↗
A retrospective audit of blood loss in total hip joint replacement surgery at Middlemore Hospital.
AIMS: To quantify the level of inappropriate red cell transfusion in primary and complex hip replacement surgery. METHODS: Data extraction was by retrospective review of patients records. Calculation of total red cell volume loss was by use of pre and postoperative (day 7) haematocrit levels, patient weight and number of units transfused. Transfusion was accepted as justified only if instituted for a 30% red cell volume loss or loss sufficient to drop the haematocrit below 0.28. RESULTS: Of 104 patients having primary hip joint replacement, 58 were transfused with a total of 157 units of red cells; 37 (24%) of these units were given inappropriately. Of 38 patients having complex hip replacement operations, 32 were transfused with a total of 139 units of red cells; 12 (9%) of these were given inappropriately. CONCLUSIONS: Inappropriate transfusion occurs in hip replacement surgery. A concurrent audit of red cell usage is required to better define the magnitude of the problem. Two unit transfusion is commonly given when one unit would have been sufficient.
Blood Loss, Surgical↗
[Central fracture-dislocation of the hip joint. Clinical analysis of 40 cases].
From 1957 to 1986, 40 cases of central fracture-dislocation of hip joint, 36 fresh and 4 old, were treated. Classification concerning the lesional patterns, indications for operative and non-operative treatment together with the factors affecting prognosis were discussed. In conclusion firstly, treatment by means of traction, simple and easy to handle, is well suited to most cases, if reduction has been satisfactory and maintained well, permitting early motion, for sufficient period of time for healing. Secondly, operation is only fit for fracture-dislocation, of which reduction has not been good enough and that it would not subject the patient to much surgical risk. Lastly, poor reduction, traction time not long enough, accetabular roof fracture or femoral head fracture and extensive damage or concomitant fracture of the same limb are the recessive factors influencing outcome.
Adolescent↗
[Results of treatment of hip joint prosthesis-related infections].
The article present results of the operative treatment of deep infections in the hip joint prostheses. Ninetieth patients treated from 1980 through 1998 were analysed. Gram-positive organisms were found in 65% of the cases and gram-negative in 35%. Staphylococcus aureus were isolated in 50% of the cases. The two-stage reimplantation procedure is performed in four patients. Excellent results were reported in three patients, and poor results in one patient. The Girdlestone pseudarthrosis as a definitive procedure is performed in fifteen patients. Good results were reported in two patients, fair results in twelve, and poor results in one patient. The mean shortening of the limb was 4.5 cm. The infection were controlled in 93% of the cases. Better functional results are obtained by the two-stage reimplantation than the Girdlestone pseudarthrosis, though is an acceptable method of controlling infection.
Adult↗
Pseudosubluxation of the hip joint. A case report.
The case of a 32-year-old man who had a subluxation of his hip joint after open reduction and internal fixation for an acetabular fracture is presented. The subluxation resolved without surgical intervention. It is thought that the subluxation, herein termed pseudosubluxation, is similar to pseudosubluxation seen in the shoulder. The patient had sustained significant trauma to the abductor musculature and lateral hip region with a Morel-Lavelle lesion and a hip fracture coincident with his acetabular fracture. This entity has not been reported previously.
Accidents, Traffic↗
[Acetabular osteotomy for osteoarthritis of the hip joint due to congenital dysplasia].
There are several reports of the treatment for osteoarthritis due to congenital dysplasia of the hip joint. Rotational acetabular osteotomy, Chiari osteotomy and shelf operation has been introduced as the representative acetabular osteotomy. In this paper, we presented our indication of these procedures for dysplastic hip and showed indicative cases.
English Abstract↗