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Volume 70-B, Issue 5 November 1988

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RB Duthie MJ Francis
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JW Goodfellow CJ Kershaw MK Benson JJ O'Connor
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The Oxford Knee, a resurfacing prosthesis with a meniscal bearing, can be used for either bicompartmental or unicompartmental arthritis. The first 103 unicompartmental cases are presented at a mean time since operation of 36 months (range 21 to 56 months). In those cases with surviving arthroplasties, pain was relieved in 96%. The full range of pre-operative flexion was maintained and flexion deformity was improved from a mean of 6.7 to 5.4 degrees. Stability and alignment were restored to normal in nearly all the knees. Absence of the anterior cruciate ligament was associated with a significantly greater incidence of failure. Six failures occurred in 37 knees lacking a normal anterior cruciate ligament (16.2%); three occurred in 63 knees with a normal anterior cruciate ligament (4.8%) (p less than 0.02). Criteria for the future selection of patients have been deduced from our experience. The operation is recommended for knees with severe unicompartmental osteoarthritis in which all the ligaments are still intact.


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AW Heywood ID Learmonth M Thomas
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We present a study of 30 fusion operations in 26 rheumatoid arthritics with cervical spine instability. Atlanto-axial instability was present in 15, of whom 12 were fused; three had cord involvement and all made a partial or complete recovery following fusion. Cranial settling necessitated cranio-cervical fusion in four patients; all fused, and one with myelopathy was relieved. Subaxial instability required fusion in seven cases; two postoperative deaths followed the only two anterior interbody fusions. Posterior fusion was successful in the other five, with remission of neurological compromise in the three with myelopathy and one with radiculopathy. We conclude that neurological compromise in an unstable but mobile rheumatoid cervical spine can usually be brought to remission by immobilisation alone, so decompressive procedures are unnecessary in the first instance.


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AW Heywood ID Learmonth M Thomas
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We describe a method of internal fixation for occipito-cervical fusion utilising a standard "small fragment" T-plate bent and fixed to the skull with three screws. The lower end of the plate is screwed and wired firmly to the spine of the axis. Of 14 patients so treated, 12 fused, one died and one failed to unite to the skull. Of eight with cord signs, seven remitted or improved and one died.


MA Edgar MH Mehta
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We reviewed 77 unfused and 91 fused patients with idiopathic scoliosis who first attended between 1949 and 1965. Both groups were re-examined at least 10 years after reaching skeletal maturity, with attention to progression of the Cobb angle, increased in vertebral rotation, back pain and psychosocial problems. We found that spinal fusion protects the scoliotic spine from further deterioration during adult life except for those with severe curves and marked rotation. Fusion also significantly reduced the incidence of severe pain and allowed patients to carry out heavy physical work, but did not confer complete immunity from backache. Surgery improved the appearance, but patients were not always completely satisfied with the cosmetic result.


EP Szypryt P Twining GP Wilde RC Mulholland BS Worthington
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Forty-two consecutive patients with suspected lumbar disc protrusions were studied prospectively to compare the diagnostic accuracy of low-field strength MRI with that of radiculography. Thirty patients subsequently underwent surgical exploration at 33 levels and the operative findings were compared to both methods of diagnostic imaging. All patients had MRI studies, whilst 29 patients also had radiculography. Both studies were evaluated without prior knowledge of the clinical signs, operative findings or the results of other imaging techniques. MRI predicted the correct diagnosis in 29 of the 33 levels explored, an accuracy of 88%. All discs proven to be abnormal demonstrated a reduced signal from the nucleus pulposus. There were two false positive results and two doubtful cases but no false negatives. Radiculography predicted the correct diagnosis in 24 of 32 levels explored, an accuracy of 75%. There were two false positive results, five doubtfuls and one false negative. The overall accuracy when both tests were considered rose to 94%. Of the remaining 12 patients all except one showed good correlation between the MRI and radiculographic findings. These results indicate that low field strength MRI is slightly better than radiculography in diagnosing lumbar disc protrusions.


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G Waddell S Reilly B Torsney DB Allan EW Morris MP Di Paola M Bircher D Finlayson
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We aimed to develop a better understanding and method of rating the success or failure of low back surgery by studying 185 patients prospectively. Identical pre-operative and postoperative assessment by an independent observer included pain, disability, physical impairment, psychological distress and illness behaviour. Outcome was assessed by the patient, by the observer and by return to work. There was 96% follow-up at two years. Correlation co-efficients varied considerably between the various measures of outcome, both patient and observer appearing to base their assessment mainly on postoperative status rather than on any change produced by surgery. The observer was influenced most by postoperative pain, disability and physical impairment. Patients were influenced most by residual physical impairment, type of surgery and proportional change in disability. Return to work was moderately influenced by postoperative disability and to a larger extent by social and work-related factors. We developed a simple formula to judge overall success or failure which accurately reproduced the combined assessment of patient and observer. If surgical audit is to be meaningful it must be based on an improved understanding of how the outcome of surgery should be assessed.


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I Jakim MB Sweet
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We report a case of transverse fracture through the body of the axis. This fracture was unstable, had been produced by extension forces and was managed conservatively. The classification of such fractures is discussed.


MW Fidler
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Two cases of burst fracture of the upper lumbar spine are reported. In both cases the narrowing of the spinal canal shown by CT scans was progressively relieved by natural remodelling. The need for operative decompression should be assessed clinically and not from CT scans only.


DI Brougham NS Broughton WG Cole MB Menelaus
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We have reviewed the serial radiographs of 63 hips in 53 children treated by closed reduction for congenital dislocation with a view to finding a radiological measurement which can predict subsequent acetabular development. All had been followed for more than seven years, and at latest review, 34 hips were dysplastic. Failure to obtain concentric reduction or its loss by migration of the femoral head within one year of reduction were the best predictors of persisting acetabular dysplasia and were best quantitated by the h/b ratio (Smith et al. 1968). The acetabular index at reduction or its decrease in the first year were not reliable predictors. Late treatment was less likely to lead to normal acetabular development, but avascular necrosis did not appear to have a significant influence. The average age at which the acetabulum stopped developing was five years, but ranged from 17 months to eight years. The failure of a dysplastic acetabulum to improve in each annual radiograph after closed reduction should lead to consideration of operation on the acetabulum.


RW Paton DI Evans
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Haemophilia is a rare cause of avascular necrosis of the femoral head. We report three cases from one centre, an incidence of 2.8%. All three cases presented "silently", and this makes the early diagnosis difficult. Awareness of the condition should lead to examination of the hips of haemophiliac patients at every outpatient visit and admission in the hope that hip disease can be diagnosed at an early stage. This may allow earlier treatment, less femoral head deformity, and an improvement in the long-term prognosis.


V Hadlow
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A prospective neonatal screening programme for congenital dislocation of the hip is reported. This covered over 20,000 live births including all the babies born in one area, with a virtually complete follow-up. All babies were examined within the first seven days of life and all hips which were dislocated or unstable after four days (1.6%) were splinted. Only two screened cases were "missed" and subsequently detected at 15 and 18 months. No later cases were discovered, and patients between 10 and 20 years of age had apparently remained asymptomatic. The detailed results show that neonatal screening is effective in detecting and preventing a crippling disorder in otherwise normal people. The examination, though brief, is difficult to perform well; it is considered that failure of the method lies with the examiner and not with the tests.


JA Wilkinson EM Sedgwick
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Of a consecutive series of 117 one-year-old infants with 130 established dislocations of the hip, 11% failed to respond to primary surgical treatment. Genetic and iatrogenic factors accounted for half the failures. There were no obvious causes in the remainder, though a few had the superficial stigmata of spinal dysraphism, and by two years of age, most of the group had developed a lateral rotation posture of the affected leg associated with a relatively smaller foot on that side. Radiologically, the femoral head had drifted and rotated laterally out of the surgically deepened acetabulum, causing persistent subluxation. Although there was no clinical evidence of sensory or motor denervation, sensory spinal evoked potential tests revealed the presence of neurological deficits in the majority of patients in this group.


TW Phillips SS Messieh
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We have analysed the clinical results of a cementless hip replacement using a Moore stem with a smooth surface, and correlated these results with the radiological changes. Forty-two consecutive arthroplasties in 41 patients were studied prospectively and reviewed at a minimum of two and up to six years; 63% had a good clinical result, 18.5% a fair result, and 18.5% a poor result. Thigh pain on weight-bearing was the main problem and was due to loosening of the stem. We caution against the use of this implant in arthritic patients, in whom a good result can be obtained more predictably with cement fixation.


YY Kim CU Ko JY Ahn YS Yoon BM Kwak
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We report 60 patients with tuberculosis of the hip treated by Charnley low friction arthroplasty and followed for eight to 13 years. Eight of them had active tuberculosis of the hip at the time of operation, and all were covered by relatively short courses of antituberculous drugs. Our study suggests that arthroplasty can be recommended for these patients provided that adequate chemotherapy is given both before and after operation.


G Maistrelli U Fusco A Avai R Bombelli
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We have reviewed the results of 106 intertrochanteric osteotomies performed for osteonecrosis of the femoral head. The average age at operation was 47.5 years. At two years from operation 71% of the hips had a clinically satisfactory result and at final follow-up, an average of 8.2 years after operation, 58% continued to have excellent or good rating. Twenty-four hips had needed total replacement or arthrodesis because of pain. Patients aged less than 55 did better than those operated on after that age, and hips with an idiopathic or post-traumatic aetiology did considerably better than alcohol-induced or steroid-induced cases. In view of these findings we believe that in the younger adult, in the absence of metabolic bone disease or advanced joint destruction, intertrochanteric osteotomy should be considered for the treatment of osteonecrosis.


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A Eskola S Santavirta YT Konttinen K Tallroth ST Lindholm
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We have reviewed six patients with old tuberculosis of the knee treated by total replacement an average of 35 years after the primary infection. Three patients had no antituberculous prophylaxis and three had drugs for two to three weeks before and three weeks after the operation. One patient with a missed primary diagnosis had a relapse of the tuberculous arthritis 18 months after his arthroplasty and was successfully treated with antituberculous drugs for one year. At an average follow-up of 6.3 years all the patients were markedly improved. Old tuberculosis of the knee can be treated successfully with arthroplasty but there is a risk of reactivation of disease and prophylactic drugs are recommended.


DJ Pring L Marks JC Angel
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Management of the failed total knee replacement is a formidable problem. In a 13-year period, 24 patients with above knee amputation following unsuccessful knee replacement were referred for prosthetic limb fitting. Adequate data was available for 23 patients. At review (or at the time of death), an average of 48.6 months after amputation, only seven of the 23 patients were regular daily walkers, although 10 patients had managed to walk for more than two years; 20 of the 23 used a wheelchair for some part of the day and 12 were confined to a wheelchair.


P Kannus M Jarvinen
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We have reviewed 32 patients who sustained a substantial knee ligament injury during adolescence when their knee epiphyses were open. They were all treated non-operatively and re-examined and evaluated in detail after an average of eight years. There were 25 Grade II partial tears and seven Grade III complete tears. After Grade II injuries the functional results were excellent or good, though static instability had not improved from the initial post-traumatic examination. The long-term results of Grade III injuries were poor, because of chronic functional instability, with continuous symptoms and some post-traumatic osteoarthritis. The results of non-operative treatment for Grade III ligament injuries were not acceptable.


J Karrholm G Selvik LG Elmqvist LI Hansson H Jonsson
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Using roentgen stereophotogrammetry we have recorded the three-dimensional movements of the knee during an anteroposterior laxity test in 36 patients with torn anterior cruciate ligaments and in three cadaver knees. At 30 degrees of knee flexion and before loads were applied the tibia occupied a more laterally rotated position if the anterior cruciate ligament had been injured. When the tibia was pulled anteriorly knees with cruciate deficiency rotated more laterally and were more abducted than normal knees. Posterior traction induced lateral rotation in the injured knee and medial rotation in the intact one. Precise knowledge of the three-dimensional instability of the anterior cruciate deficient knee may be important when the laxity is evaluated only in relation to one of the three cardinal axes.


A Mitsou P Vallianatos N Piskopakis P Nicolaou
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In 30 rabbits, the medial meniscus was used to replace the anterior or posterior cruciate ligament. The changes that took place were followed in histological sections, obtained both from the area of insertion into bone and from the intra-articular part of the graft. There was a gradual differentiation to chondroid tissue, with subsequent calcific deposition and no appearance of normal ligamentous tissue. The strength of the graft after 52 weeks was only one-quarter of that of the normal ligament. Our results do not justify the use of the meniscus to replace a torn cruciate ligament.


OO Oni A Hui PJ Gregg
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One hundred consecutive closed fractures of the adult tibial shaft treated by closed methods were surveyed prospectively in order to observe their natural history. The fractures were analysed with regards to speed of healing and the influence of age, sex, causal force, radiological morphology and concurrent fibular fracture. At 20 weeks 19 fractures had not yet united, but 15 of these had united by 30 weeks with conservative treatment alone. The remaining four cases were operated upon because no further progress in healing was anticipated. These findings suggest that, with regard to healing, open reduction and internal fixation is rarely justified in closed adult tibial shaft fractures.


J Mackinnon T Aziz JH Dixon
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There is a trend away from amputation for limb cancer; salvage procedures are becoming more widespread. We describe one case of interscapulothoracic resection of the shoulder and discuss methods of maximising the residual function of the arm. The procedure is recommended for patients with the correct indications.


RJ Hawkins RM Brock JS Abrams P Hobeika
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This is a retrospective review of 108 patients who underwent decompressive anterior acromioplasty for chronic impingement in the absence of a full thickness rotator cuff tear. Before operation, all the patients had had shoulder pain for at least one year despite conservative treatment. At operation, the rotator cuff tendons were explored and were intact. Anterior acromioplasty, followed by rehabilitation was successful in 87% of patients. The operation was less successful in women, in those who had diminished movement before operation, who were involved in worker's compensation claims, and whose pain followed direct trauma. Appropriate selection of patients is considered the key to success.


TB McAuliffe T Pangayatselvan I Bayley
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We have reviewed 36 patients who had recurrent anterior dislocation of the shoulder after a previous anterior repair and analysed the various causes of failure. It was found that failure could have been avoided in virtually all of the patients by correct pre-operative diagnosis, selection of the appropriate operation and its proper execution. The further management of these patients is described and suggestions are made as to means of reducing the incidence of failure after primary operation.


W Laupattarakasem
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Continuous passive motion (CPM) is an established method of preventing joint stiffness and of overcoming it. The optimum duration of treatment, however, is not known, though a period of one to three weeks is usual. This may be unnecessarily long and a programme lasting only three days has been tried in 34 patients: in 22 (Group A) treatment was designed to increase movement in stiff joints which had been operated on or manipulated, and in 12 (Group B) it was to prevent stiffness after an injury. A specially designed CPM device was used. In Group A, the range by the third day of treatment was significantly greater than before manipulation or operation and this increase was maintained until the latest follow-up at an average of 24 weeks. In Group B, the pre-injury range was almost retained and thereafter there was a gradual increase. Patient compliance in the first 12 hours of CPM was relatively poorer than that described in previous reports, and in five patients treatment had to be discontinued.


Synovial chondromatosis Pages 807 - 811
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H Maurice M Crone I Watt
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We reviewed 53 cases of synovial chondromatosis and compared their clinical, radiological and pathological features. A radiological diagnosis is possible with increasing frequency as the disease progresses; in the early phase arthrography is helpful. Radiologically the disease may be classified as either extra-articular, or intra-articular; the intra-articular variety may be localised or generalised. Recurrence after operation was seen in 11.5% and was much the same after either synovectomy or simple removal of loose bodies. A protocol for treatment is proposed.


MP Baxter MA Finnegan
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In the neonate, Group B beta-haemolytic streptococcal osteomyelitis presents with few inflammatory signs, a mild clinical course, extensive bony destruction, and usually single bone involvement. Onset is late (10 to 60 days after birth) and obstetric trauma appears to predispose to infection. Serotype studies suggest transmission from mother to child at the time of delivery.


VP Kumar K Satku R Helm RW Pho
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Seven patients with segmental defects of both bones of the forearm had reconstruction operations using a vascularised fibular graft to bridge the radius. Reasonable forearm rotation was preserved with full elbow movements and satisfactory hand function.


TS Sorensen J Hedeboe ER Christensen
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In the literature 21 children have been reported with haematogenous osteomyelitis involving only the epiphyses of long bones; in 20 the epiphyses of the knee were involved and the radiographs showed a lytic lesion. Most patients gave a history of pain, limp or refusal to walk for weeks or months without general illness. The erythrocyte sedimentation rate and white cell count were of little diagnostic value, but a bone scan was usually positive. All the patients were cured by antibiotics alone or in combination with curettage.


B Kristiansen H Kofoed
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A consecutive series of 31 displaced fractures of the proximal humerus were randomly selected for treatment either by closed manipulation or by transcutaneous reduction and external fixation. Follow-up assessed the quality of reduction and healing as well as the functional outcome. The external fixation method gave better reduction, safer healing and superior function.


JJ Dias AC Lamont JM Jones
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We report a case of neonatal separation of the distal humeral epiphysis in which non-invasive ultrasonic examination provided clear definition of the injury.


H Kawai K Yamamoto
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Delayed union or non-union of the scaphoid was treated by a bone graft on a pronator quadratus pedicle in eight cases. This produced earlier union than the Russe procedure. The procedure is simple and is recommended for old un-united scaphoid fractures.


Cubital bursitis Pages 832 - 833
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ND Karanjia PJ Stiles
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We describe two cases of bursitis at the insertion of the biceps tendon. They presented as swellings in the cubital fossa with symptoms of median nerve irritation. The aetiology was probably mechanical trauma; both patients were cured by operation.


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Carter MJ Aldridge
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We report 21 cases of stress injury of the distal radial growth plate-occurring in gymnasts before skeletal maturity. The injury appears to be caused by inability of the growth plate to withstand rotational and compressive forces. Our observations have confirmed that the skeletal age of gymnasts is retarded, which increases the length of time during which the epiphysis is at risk of damage.


K Yasuda T Majima
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DA Archibald K Protheroe IG Stother A Campbell
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MD Bird MB Sweet
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JH Roth RC Bray
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JB Van Mourik HA Josaputra A Axler
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UG Nachinolcar KB Khanolkar
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GX Jiang WD Xu
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AA Bernard
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G Hagglund B Bylander LI Hansson G Selvik
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L Freedman K Luk JC Leong
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HJ Clarke R Allum
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