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S R Koka

Publications and source records attributed to S R Koka.

8 recordsLinked to original sources
PubMed2000

Low-friction arthroplasty with Boneloc bone-cement: outcome at 2 to 4 years.

We report the clinical and radiologic outcome of 109 Chamley low-friction arthroplasties implanted with Boneloc bone-cement (Biomet, Bridgend, South Wales, UK) into 104 patients. The mean follow-up was 30 months (range, 2-48 months). There were 72 women (mean age, 71 years) and 32 men (mean age, 72). Cartridge-packed cement was used in 37 cases and vacuum-packed cement in 72 cases. Survivorship analysis based on revision for aseptic loosening showed 79% survival at 4 years. Seventeen (15.5%) hips have been revised for aseptic loosening to date, in which all stems and 4 cups were loose. Extensive femoral osteolysis was always present and resulted in 4 cases of femoral cortical perforation at revision. Survivorship analysis based on revision and radiologic failure showed only 55% survival over the same period. When radiologic loosenings were included as failures, the vacuum-packed cement performed significantly worse than the cartridge-packed cement it replaced. These poor results were consistent with the withdrawal of Boneloc from clinical use in 1995, and we recommend indefinite follow-up for surviving prostheses.

Aged↗
PubMed1999

Acetabular augmentation for the treatment of unstable total hip arthroplasties.

Twenty-eight unstable total hip arthroplasties were treated with an acetabular augmentation wedge. Of the hips, 23 have had no further dislocations at a mean follow-up of 26 months. Five patients continued to dislocate and have needed further surgery. To our knowledge this is the largest reported series of acetabular augmentation with as good results as those of the most successful reported series of this technique, and a success rate comparable to other methods of treating recurrent dislocation. Careful patient selection, and using a thin augmentation wedge to avoid impingement, are important to the success of a technique which is a useful option in the management of recurrent dislocation.

Acetabulum↗
PubMed1996

Postoperative radiographs or thermal prints after internal fixation of fractures? A study of DHS fixation of hip fractures.

Immediate postoperative radiographs confirm the quality of reduction and fixation of fractures. This information is already available from the image intensifier and can be saved as hard copy thermal prints. If thermal prints give the surgeon the necessary patient and clinical information them immediate postoperative radiography should not be required. In this retrospective study of 20 hip fractures treated by dynamic hip screw (DHS) fixation, plain radiographs and thermal prints were compared for the patient and clinical information they contained. Thermal prints were found to be deficient in some areas but, nevertheless, can potentially replace postoperative radiographs in many orthopaedic procedures saving time, money and radiation exposure.

Aged↗
PubMed1995

Mennen plate fixation for fracture of the femoral shaft with ipsilateral total hip and knee arthroplasties.

A method of treatment for a femoral shaft fracture in a patient with well-functioning ipsilateral total hip and knee arthroplasties is described. Total hip and knee arthroplasties are commonly performed, but ipsilateral femoral shaft fracture is an infrequent and troublesome complication. Management of these fractures is often difficult. Various operative treatments have been described in the literature with varying success.

Aged↗
PubMed1991

Results of Buck screw fusion in grade I spondylolisthesis.

The results of posterolateral screw fixation using the Buck technique performed on 24 patients with painful isthmic spondylolysis and up to grade I spondylolisthesis in the lumbar spine are reported. The average age at operation was 29 years and average follow-up was 5 years with a range of 13 months to 12 years. Operations were performed for persistent disabling low back pain. At review 21 patients were either free of pain or complained of only occasional backache and discomfort. All but two patients were satisfied with the operation and rated the result as excellent or good. It is concluded that Buck screw fixation is a safe and reliable method of treatment for painful Grade I spondylolisthesis due to isthmic spondylolysis in the young active adult with a low complication rate.

Adolescent↗