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Volume 71-B, Issue 4 August 1989

HI Roach Shearer C Archer
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BF Morrey
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Of 34 consecutive proximal tibial osteotomies for secondary degenerative arthritis in patients under 40 years of age, 33 were evaluated at least three years (mean 7.5 years) after operation. In all 73% were satisfactory, with four failures in 21 procedures in men and five failures in 12 procedures in women. The primary abnormalities were medial meniscectomy (11), medial and lateral meniscectomy (4), osteochondritis dissecans (3), osteochondritis dissecans with medial meniscectomy (4) and fracture (11). All four knees with both medial and lateral meniscectomy had unsatisfactory results despite obtaining anatomical alignment. Eight patients needed subsequent surgery; five of them had total knee replacement, four within four years of the osteotomy. Proximal tibial osteotomy in younger patients with secondary arthritis gives similar results to those for older patients with primary osteoarthritis. If it fails, this is generally within the first four years after the operation.


TD Cooke D Pichora D Siu RA Scudamore JT Bryant
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Some arthritic knees with varus deformity show excessive valgus angulation of the femoral joint surface with proximal tibia vara. This causes a downward and medial inclination of the articular surfaces in the coronal plane. The patients we studied had a medial shift of the standing load-bearing axis, and arthritic changes mainly in the medial compartment. Some also had lateral tibial subluxation with twisting of the distal femur and proximal tibia in opposite directions. We assessed the articular geometry by precise radiographic analysis, and compared the results with those in normal volunteers and a group of osteoarthritic patients. The prevalence of this type of deformity in our osteoarthritic patients was 11.5%; its recognition allows the use of specific operative correction that may include double osteotomy or the precise orientation of prosthetic components.


K Fujikawa F Iseki BB Seedhom
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The healing of anterior cruciate ligaments reconstructed with the Leeds-Keio artificial ligament was observed by arthroscopy in 42 knees and biopsy in 19 knees at intervals from 3 to 24 months after implantation. By three months the implant was covered with immature new tissue, and a dense vascular network crossed its surface. At 12 months a new ligament had developed and matured, looking like the natural one in most cases. Histology at this stage showed abundant collagenous fibres running parallel and longitudinally, while the synovial membrane showed no more than very slight inflammatory changes. By 18 to 24 months, the new ligament often had the arthroscopic appearance of a normal anterior cruciate ligament. These results suggest that this scaffold type of artificial ligament is effective for cruciate reconstruction, giving satisfactory healing without significant complications.


K Tallroth A Eskola S Santavirta YT Konttinen TS Lindholm
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We reviewed 19 patients who presented with aggressive granulomatosis around the femoral stem after hip replacement. All had experienced stress pain and had required revision arthroplasty on average 8.8 years after the primary operation. Fifteen patients were men and four were women; none had rheumatoid arthritis. One patient had an uncemented Moore hemiprosthesis; the others all had cemented total hip replacements. When first detected, the granulomatous lesions were multifocal in 13 patients. The first granuloma was in the region of the lesser trochanter in 10, and near the tip of the stem in only two. Speed of growth varied but on average there was doubling of the area on anteroposterior films in 2.2 years (range 6 months to 4.6 years). Aggressive granulomatous lesions in replaced hips are a distinct condition, different from simple loosening or infection; the lesions may grow rapidly, so revision surgery is indicated soon after diagnosis.


K Doi G DeSantis DI Singer JV Hurley B O'Brien SM McKay MJ Hickey BF Murphy
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Five vascularised allografts of the knee joint were performed in dogs immunosuppressed with cyclosporin A and azathioprine. Three survived with normal function for 3 to 4 months after operation. One of the unsuccessful grafts had a failed vascular anastomosis, the other an inadequate blood level of cyclosporin A. All three successful grafts healed well. In two, bone scans, radiographs and biopsies were indistinguishable from successful autografts; in the third the blood supply to the graft failed despite patent anastomoses but the graft healed well with good function. All three grafts were rejected within 2 to 3 weeks of withdrawal of cyclosporin A and azathioprine. In non-immunosuppressed dogs, allografts of the knee, both vascularised and non-vascularised, were rejected within a few days of operation. In two non-vascularised allografts, administration of cyclosporin and azathioprine had no apparent effect on the rate of rejection of the graft.


MA Jacobs PE Loeb DS Hungerford
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From 1974 to 1981, we performed 28 core decompressions of the distal femur for pathologically confirmed avascular necrosis. At a mean follow-up of 54 months (range 20 to 140 months) and using the Ficat stages, all seven cases in stage I and stage II had good results. Of 21 cases in stage III, 11 cases had good results, four had poor results, and six needed total knee replacement. There were no significant orthopaedic complications. The procedure is worthwhile and will be more accurate with new methods of imaging.


ED Fern HD Stewart G Newton
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We report the use of long curved Kuntscher nails to maintain stability during arthrodesis of nine infected and five uninfected failures of total knee replacement. The curvature of the nail helps positioning and avoids the need for cortical perforation. A single-stage operation was possible in most cases. Union rates are comparable with those of other series and even patients with delayed union have satisfactory function.


DM Hirsh JG Sallis
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The usual causes of pain after total knee replacement are well known, but there are a small number of patients in whom its aetiology is obscure. We report three patients with a specific pain syndrome caused by hypertrophic fibrous tissue in the intercondylar notch. Excision of this tissue relieved the symptoms completely.


M Yoshimura T Shimada M Matsuda M Hosokawa S Imura
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We treated 11 patients with chronic osteomyelitis of the tibia or the foot by local excision and transfer of a peroneal myocutaneous island flap. This flap, pedicled proximally or distally on the peroneal artery and veins, provides viable muscle to fill the dead space in bone and skin to close the defect. Ten patients reviewed more than three years after operation were all free of drainage with no clinical or radiographic evidence of recurrence.


KK Au
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Forty-five Chinese patients had below-knee amputation by a sagittal flap technique; 84% for ischaemia. Satisfactory healing was obtained in over 90%, but complications and failure were more common in patients with diabetes mellitus. A modified sagittal flap is recommended.


Y Yamano
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The design and use of a prong plate for the treatment of displaced fractures of the femoral neck is described. The prongs hold the femoral head, and the plate is screwed to the anterior cortex of the femoral neck and trochanteric region. The new plate has been used in 32 patients with Garden stage III or IV fractures and 29 had a good result. Bony union was seen within 11 weeks in all patients in whom bleeding of the femoral head was noted at operation, but was much delayed in patients without bleeding. Late segmental aseptic necrosis was seen in four patients after follow-up of at least two years, and successfully treated. The prong plate allows accurate reduction, impaction and strong rigid fixation with less disturbance of the intramedullary blood flow than other fixation methods.


A Sarmiento LM Gersten PA Sobol JA Shankwiler CT Vangsness
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We have reviewed our recent results with functional bracing of tibial shaft fractures in adults in order to define its role in management. We also analysed several parameters of these fractures to discover those which influence healing. A total of 780 tibial fractures treated in prefabricated functional braces were followed to union; shortening of less than 10 mm and angulation of less than 5 degrees in any plane were our parameters for successful treatment. The average time before applying a brace was 3.8 weeks for closed fractures and 5.2 weeks for open ones. Closed fractures healed in an average of 17.4 weeks and open fractures in an average of 21.7 weeks, 90% of them with 10 mm of shortening or less. Varus angulation and posterior angulation were the most common deformities encountered at union. There were 20 nonunions (2.5%) and 46 braces were discontinued during treatment. We found no association between fracture healing and the patient's age, the mechanism of injury or the fracture location. The degree of soft tissue injury appeared to have most influence on the speed of fracture healing. Fracture comminution and initial displacement, the condition of the fibula and the time from injury to bracing also appeared to affect the speed of union.


PD Sponseller SS Desai MB Millis
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We studied the pattern of proximal femoral growth after severe Perthes' disease (Catterall grade III or IV) by retrospective analysis of serial radiographs in 52 hips (46 patients). Our aim was to determine the relationship between proximal femoral growth abnormalities and metaphyseal cysts, epiphyseal extrusion, physeal narrowing, and extensive epiphyseal necrosis. The average follow-up after treatment was 9.8 years (range 4 to 16 years), and 37 of the hips were followed to skeletal maturity. Slowing of proximal femoral growth was common: symmetrical abnormality was seen in 26 hips and asymmetrical abnormality in nine. However, definite premature closure of the proximal femoral physis was seen in only three hips. Abnormality seemed to be due to altered growth velocity rather than to bar formation in most cases. Metaphyseal cysts, epiphyseal extrusion and physeal narrowing during the active stage of the disease, alone or in combination, were found to be neither sensitive nor specific predictors of the subsequent growth pattern.


MM Stephens LC Hsu JC Leong
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We reviewed and radiographed 30 skeletally-mature patients after isolated closed femoral shaft fractures in childhood which had been treated conservatively. When the fracture had occurred between the ages of 7 and 13 years, the limb overgrew about 1 cm regardless of sex, upper limb dominance, age, fracture site or configuration. Excessive fracture overlap at the time of injury, but not at union, increased limb overgrowth. Angulation of the fracture remodelled in children injured under 10 years of age, but in older patients this sometimes added to limb shortening. Rotational deformities were minor and gave no symptoms. Treatment of the 7- to 13-year-old patient should aim at 1 cm overlap at union, with correction of angular deformity being more important in children over 10 years of age. This management of fractures will give a maximum leg length discrepancy of 1 cm at skeletal maturity.


R Hornby JG Evans V Vardon
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All elderly patients with extracapsular hip fractures seen in hospitals in Newcastle upon Tyne over a 12-month period were studied and followed up for six months. At one of the hospitals, patients were randomised to treatment by AO dynamic hip-screw or by traction. Complications specific to the two treatments were low, and general complications, six-month mortality and prevalence of pain, leg swelling and unhealed sores, showed no difference between the two modes of treatment. Operative treatment gave better anatomical results and a shorter hospital stay, but significantly more of the patients treated by traction showed loss of independence six months after injury.


Loudon MW Older
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We compared the clinical outcome with femoral subsidence and radiographic changes in 102 patients at 9 to 13 years after low friction arthroplasty. In 92 cases with a satisfactory outcome there was an average of 2.3 radiological signs and mean subsidence of less than 5 mm. An unsatisfactory outcome was associated with 3.4 signs per film and with subsidence of more than 5 mm. The radiological signs we describe are often the hallmark of successful load transmission, but if they increase with time or are associated with subsidence of over 5 mm, then clinical failure is likely. Fracture of the cement tip is associated with increased subsidence and adversely affects the long-term clinical outcome.


D Nunn MA Freeman PF Hill SJ Evans
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Individual components of a total hip replacement are difficult to evaluate and quantify. We have studied the assessment of the acetabular component, and conclude that the measurement of migration allows the comparison of implants, although there is no established link between migration and significant loosening. A method of measurement based on clinical radiographs has been developed, and its limitations estimated. The accuracy of the technique was calculated to be +/- 3 mm.


DW Murray T Rae N Rushton
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We investigated the possibility that the macrophages which are seen around implants may stimulate bone resorption and cause loosening. We found that macrophages release mediators that stimulate bone resorption, and that the amount of resorption increased by between 2.5 and 10 times when the macrophages adhered to a foreign surface. This bone resorption depended on the surface energy and roughness of the foreign surface, varying with these physical properties rather than with the chemical nature of the material. It is concluded that loosening of orthopaedic implants is likely to be influenced by the surface energy and roughness of the implant.


L Sanzen AS Carlsson
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In 50 patients with non-infected total hip arthroplasties (THA), 233 C-reactive protein (CRP) values were obtained over a three-year period. Six of these 50 patients occasionally had CRP values of over 20 mg/l. The erythrocyte sedimentation rate (ESR) and CRP concentration were measured in 23 patients with deep infections of THA before revision. In 11 patients the infections were caused by coagulase-negative staphylococci. CRP exceeded 20 mg/l in 18 patients and the ESR was more than 30 mm/hr in 14. In only one infected patient were both CRP and ESR below these levels. All of 33 patients with non-septic loosening had CRP less than 20 mg/l and ESR less than 30 mm/hr before revision. C-reactive protein seems to be a valuable supplement to the ESR in the monitoring of infection after THA.


J Bradley DJ Dandy
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We report the arthroscopic drilling of classical lesions of osteochondritis dissecans in 11 knees in 10 children with at least six months history and no sign of clinical or radiological improvement. There were eight boys and two girls and the average age at operation was 12 years 11 months. Relief of pain was noticed within days of operation; radiological healing occurred within 12 months in nine of the 11 knees.


J Malghem B Maldague W Esselinckx H Noel P De Nayer A Vincent
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We report three cases of spontaneous healing of aneurysmal bone cysts (ABC). In one case histological material was obtained after resection of the already ossified expansile mass discovered as a lytic lesion seven months previously. In the two other patients, spontaneous ossification of a radiologically presumed ABC in the lytic and expansile phase was observed after nine and seven months respectively. The healed lesions have remained stable at 12, 32, and 36 months respectively. These findings suggest that when the diagnosis can be made with confidence, and the lesion is in a location and at a stage that does not entail any risk of fracture or compression, expectant management should be considered. Our three patients were aged 22, 19 and 18 years, older than usual for developing ABC. This is also true for many of the few other reported cases of spontaneous or almost spontaneous healing and suggests that ABC has a greater tendency to stabilise in older patients.


CB Jones ME Dewar PM Aichroth EJ Crawfurd R Emery
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Ten epiphyses in seven children underwent fixed-rate distraction of 0.25 mm twice daily in an attempt to achieve percutaneous leg lengthening by chondrodiatasis. The forces generated across the growth plate were recorded by means of strain gauges incorporated into the distractors. All epiphyses fractured before 33 days of lengthening. An average gain of 6.75 cm was achieved. Epiphyseal distraction at the lower femur produced many complications, but at the upper tibial epiphysis planned lengthening was achieved, with excellent bone production and few complications.


KS Leung AH Sher TS Lam PC Leung
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We measured the adenosine triphosphate (ATP) content of callus at various intervals during healing in 78 fractured tibiae in 10- to 12-week-old rabbits. The results, compared with the level in normal tissues, showed a high rate of energy metabolism in the early phase of fracture healing, which persisted until the callus was corticalised and remodelling had started. The ATP content could provide a more sensitive index to monitor fracture healing in animal studies. Our findings lend support to the need for nutritional supplements for patients with multiple fractures.


RM Charnley DR Bickerstaff WA Wallace A Stevens
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In a prospective study of the measurement of osteoporosis in patients with fracture of the femoral neck, we compared a histological with a radiological method. We found no significant correlation between histological planimetry and the radiological six metacarpal hand index in patients with either cervical or trochanteric fractures. This demonstrates that metacarpal morphometry cannot predict histological osteoporosis of the iliac crest.


NJ Tulp WP Winia
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We reviewed 61 elbow synovectomies in 50 patients with rheumatoid arthritis, with follow-up varying from 4 to 10 years (mean 6.5 years). The results were graded as satisfactory in 70%, with no significant difference in the results between joints which were radiologically good before operation and those which had been destroyed. Longer term results were analysed of 27 elbow synovectomies in 22 patients followed up for over six years. The results were satisfactory in 67% of the patients in both 1981 and in 1987, with no deterioration over this period.


W Laupattarakasem B Mahaisavariya W Kowsuwon S Saengnipanthkul
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Several methods for the correction of cubitus varus have been described, but most reported series are small and show a high rate of complications. We report a six-year personal experience of 77 osteotomies by a new technique which provides rigid fixation and allows correction of both varus and rotation deformities. It also prevents lateral bulging at the level of the osteotomy. In 58 cases followed up for an average of 16 months, there were no serious complications, a satisfactory carrying angle and no significant loss of movement, giving 88% excellent or good results.


T Takashima K Kawai K Hirohata A Miki H Mizoguti TD Cooke
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We studied the morphology of the haversian canals in the osteopenic cortical bone of the medial femoral neck from patients with rheumatoid arthritis and compared the findings with those in patients with osteoarthritis and with uncomplicated coxa valga. In the rheumatoid bone, the diameters of the canals were larger and many more contained osteoclasts. Fewer haversian canals showed only lining cells than in the osteoarthritic or coxa valga patients. In bone from rheumatoid patients, especially in canals with osteoclasts, small blood vessels were frequently lined by tall endothelial cells with an infiltration of mononuclear cells. These morphological differences are discussed with reference to the possible mechanisms of loss of cortical bone in rheumatoid arthritis and other conditions.


BN Summers SM Eisenstein
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Chronic pain at the donor site was reported by 25% of 290 patients who had undergone anterior lumbar spine fusion for low back pain. Donor site pain has characteristic clinical features, may be severely disabling and is stubbornly resistant to treatment. The highest prevalence was in patients who had a tricortical full thickness graft taken through a separate incision overlying the iliac crest. Patients with a clinically unsatisfactory result from the spine fusion also had a significantly higher prevalence of donor site pain.


G Lilius EM Laasonen P Myllynen A Harilainen G Gronlund
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A group of 109 patients with unilateral low back pain for over three months were randomised to receive one of three types of injection treatment: cortisone and local anaesthetic injected into two facet joints (28), the same mixture around two facet joints (39), or physiological saline into two facet joints (42). The effect of the treatment was evaluated in relation to work attendance, pain, disability and movements of the lumbar spine. Patients were examined one hour and two and six weeks after treatment and also completed a questionnaire after three months. A significant improvement was observed in work attendance, pain and disability scores, but this was independent of the treatment given and movements of the lumbar spine were not improved. Of the 70 patients with initial pain relief after injection, 36% reported persisting benefit at the three month follow-up, independent of the mode of treatment given. We conclude that facet joint injection is a non-specific method of treatment and the good results depend on a tendency to spontaneous regression and to the psychosocial aspects of back pain.


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D Rees MW Jones R Owen JC Dorgan
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There is a high incidence of spinal deformity in children with the Prader-Willi syndrome. We have encountered major complications following spinal surgery in this condition. We report our experience and conclude that spinal surgery is a formidable undertaking and the risks should be appreciated by the surgeon and the parents.


H Mehdian D Jaffray SM Eisenstein
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We report the technique and early results of the Dwyer-Hartshill method for segmental fixation of the spine. This uses pedicular screws wired to a rectangular frame and is indicated after laminectomy.


A Gupta WS el Masri
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Spinal injury at more than one level is not uncommon. Awareness of multilevel injury of the spine and associated neurological patterns is important for the proper initial management of the patient. This study presents the incidence, pattern of signs and the neurological consequences of multilevel spinal injury. A review of 935 patients with spinal injuries revealed that lesions occurred in multiple levels in 9.7%; in over half of the cases, neurological lesions were incomplete. Multiple level non-contiguous lesions at more than two levels had the worst prognosis with 70% of patients suffering complete paraplegia.


M Backer H Kofoed
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We compared goniometric assessment of passive ankle movement with radiographic measurements in 100 normal ankles. Significant differences were recorded in both dorsiflexion and plantarflexion; clinical measurements overestimated the range of movement. For scientific documentation of tibiotalar mobility, radiographic measurements should be used.


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RN Slater AJ Edge A Salman
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JS Wand JN Zuckerman DW Higginson
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M Haag CP Adler
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PR Kay
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HT Phen NV Kumar J Ireland
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CG Moran DN Kreibich
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Chondroma of the scaphoid Pages 705 - 705
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K Masada K Fujiwara H Yoshikawa K Iwaki
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O Bostman EA Makela P Tormala P Rokkanen
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JW Rosson G Walker
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Girl with three legs Pages 708 - 709
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A Gregosiewicz I Wosko M Okonski
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HF Bar H Breitfuss
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