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D L Back

Publications and source records attributed to D L Back.

6 recordsLinked to original sources
PubMed2003

The effect of component malalignment on the clinical and radiological outcome of the Kinemax total knee replacement.

Component angles of 198 Kinemax total knee replacements were measured from standard short leg radiographs. An ideal tibio-femoral angle of between 4 and 10 degrees of valgus was achieved in 64.6% of patients. After an average follow-up of 6.5 years (range 4.5 to 9.5), there was no significant difference between knees in acceptable and suboptimal alignment in terms of pre- and post-operative knee and function scores and prevalence of radiolucent lines. Varus placement of the tibial component was significantly more common by trainee surgeons (P<0.001).

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PubMed2003

Early results of the Souter-Strathclyde unlinked total elbow arthroplasty in patients with osteoarthritis.

We have carried out a retrospective review of 11 Souter-Strathclyde primary total elbow arthroplasties in ten patients with osteoarthritis, over a period of nine years. The diagnosis was primary osteoarthritis in nine elbows and post-traumatic arthritis in two. The mean follow-up was 68 months (15 to 117). Although no patient was symptomatic, radiological review revealed evidence of loosening affecting three humeral and two ulnar components, one of which subsequently failed and was revised at 97 months. There were no dislocations, deep infections or mechanical failures. Complications included two superficial wound infections and two neurapraxias of the ulnar nerve which resolved. This study shows that the unlinked Souter-Strathclyde total elbow arthroplasty can be considered for patients with osteoarthritis and gives good symptomatic relief and improvement in function.

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PubMed2002

Diagnosing shoulder dislocations: time for a change of view.

Posterior shoulder dislocations are uncommon, with frequent delays in the diagnosis. Three missed posterior dislocations within our hospital caused us to review the standard radiographs taken and the knowledge of this condition. A total of 40 radiographers and 40 casualty officers were surveyed. Of the radiographers, 63% felt it unnecessary to perform two views, they complained that laterals were difficult to obtain because of patient distress. All the radiographers surveyed knew of alternative views, but would not perform them unless specifically requested. Casualty officers claimed always to request two views, but did not in 75% of cases. Only 20% were aware of alternative views, all would accept one view for exclusion of a dislocation and none were aware of the radiographic signs associated with a posterior dislocation. Increased education and a change of view would assist in decreasing the rate of missed diagnoses.

Adult↗
PubMed2001

The Kinemax total knee arthroplasty. Nine years' experience.

We reviewed the outcome of 422 primary cemented Kinemax total knee arthroplasties implanted into 369 patients over a period of five years, from January 1989. The operations were carried out at two NHS district general hospitals and one teaching hospital by 31 surgeons. During the period of review, 49 patients died and ten knees were lost to follow-up (68 knees). The mean Knee Society score improved from 28 before to 89 after surgery, and the mean function score increased from 23 to 79. The range of flexion improved from 92 degrees to 105 degrees. These improvements were maintained throughout the period of study. At the latest review radiolucent lines of 1 mm were seen around 15% of tibial components, 1.4% of patellar components and 9.5% of femoral components. In no case were these changes progressive. Using revision as the endpoint, cumulative survival was 99% after five years and 96.95% after nine years. All revisions were undertaken for deep infection or secondary trauma. Our study has shown that the Kinemax total knee replacement, when carried out with retention of the posterior cruciate ligament by surgeons of varying experience, produces very satisfactory results in the medium term.

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