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Biomedical subjects

D P Baksi

Publications and source records attributed to D P Baksi.

12 recordsLinked to original sources

Modified Boytchev procedure for the treatment of recurrent anterior dislocation of the shoulder.

From January 1990 to December 1998, 48 patients with 50 recurrent anterior dislocations of the shoulder were treated using a modified Boytchev procedure. The age of the patients varied from 18 to 35 years (average 24.7 years). The follow-up period was in average 88 (26-132) months. Six patients were lost in follow-up. Forty-two shoulders showed excellent results. There was one traction injury of the musculocutaneous nerve and one patient with immediate recurrence of the dislocation. Superficial wound infection occurred in five cases, all of which were controlled by antibiotics.

Adolescent↗

Sacrospinalis muscle-pedicle bone graft in posterolateral fusion for spondylolisthesis.

Twenty three patients with lumbar spondylolisthesis (6 Grade I, 14 Grade II and 3 Grade III) with low back pain, and radicular pain in 14, were treated surgically when they failed to respond to conservative treatment. Their average age was 33.2 years. Bilateral posterolateral spinal fusions with autologous iliac bone chips, supplemented by a sacrospinalis muscle-pedicle bone graft on the left side, were undertaken after laminectomy and foraminotomy in all except in two adolescents, where laminectomy and foraminotomy were avoided. The period of follow-up varied from 26 to 126 months (average 65.3 months). The results in 11 (48%) patients were excellent, 9 (39%) were good, 2 (9%) fair and one (4%) poor. There was a higher incidence (87%) of good quality of osseous fusion on the left side, where the sacrospinalis muscle-pedicle bone graft was used, compared to the right, where 70% of fusions were satisfactory. Function improved in 91% of the patients. Neither scoliosis nor weakness of the extensor muscles of the back developed due to reanchorage of the sacrospinalis muscle to the lumbosacral spines.

Activities of Daily Living↗

Sloppy hinge prosthetic elbow replacement for post-traumatic ankylosis or instability.

From 1984 to 1995, 68 ankylosed elbows and 11 which were unstable after trauma were replaced in India by Baksi sloppy hinge prostheses. The mean age of the patients was 28.6 years (17 to 70) and the mean follow-up 9.6 years (2 to 13.5). Of the 68 ankylosed elbows, 59 (87%) regained a mean arc of painless movement of 88.5 degrees (27 to 115). The mean improvement of supination was 24 degrees and of pronation 16.5 degrees . There were 54 good results (80%), eight fair and three poor. There were two complete failures due to infection, and one due to a broken humeral stem. Of the 11 unstable elbows, the nine with good results had a mean arc of 125 degrees (15 to 140) of painless stable movement, with a mean improvement in supination of 26 degrees and of pronation of 19.5 degrees . There was one fair result and one failure due to loosening with subsequent late infection. There were significant complications in 14 cases with infection in seven and aseptic loosening in four. Patients with loosening or late removal of the prosthesis often retained reasonably stable elbow movement because periprosthetic fibrosis had connected the approximated bone ends, and muscle balance had been restored.

Adolescent↗

Palliative operations for painful old Perthes' disease.

Thirty-one adults with painful old Perthes' disease were treated by subcutaneous adductor tenotomy and cheilectomy of the femoral head with the aim of increasing abduction and rotation of the hip. In addition, multiple drilling was carried out to decompress the femoral head, and muscle-pedicle bone grafting to improve the circulation and repair the necrotic bone. Follow up was from 38 to 120 months. Pain was relieved in every case and movement improved in most. There were 14 excellent, 12 good, 4 fair and one poor result.

Adolescent↗

Pes anserinus transposition for patellar dislocations. Long-term follow-up results.

Transposition of part of the pes anserinus was used to treat 96 knees in 78 patients with recurrent, habitual or permanent dislocations of the patella. The knees with habitual (48) and permanent (27) dislocations also had extensive release of superolateral contracture. The patients were reviewed at an average follow-up of 9 years 8 months. The medial stability of the patella had been improved in all the cases. There were no recurrences in 21 knees with recurrent dislocations. There were four recurrences (5.3%) in knees with habitual and permanent dislocations due to inadequate release of the superolateral contracture and incorrect transfer of the whole of the pes anserinus. Correction of these technical errors prevented further recurrence in all four cases.

Adolescent↗

Treatment of osteonecrosis of the femoral head by drilling and muscle-pedicle bone grafting.

Sixty-one patients with 68 osteonecrotic femoral heads, at different stages of development, were treated surgically; their average age was 36 years. Necrosis followed a fracture in 43 hips and traumatic dislocation in three. It was idiopathic in 14, cortisone-induced in seven and associated with gout in one. The operation of multiple drilling, curettage of the necrotic bone and muscle pedicle bone grafting was performed in all. Cheilectomy of the superolateral part of the femoral head and adductor tenotomy were added in cases of advanced necrosis. Of the several types of muscle pedicle used, tensor fasciae latae anteriorly and quadratus femoris posteriorly were preferred. Full weight-bearing was not permitted for five to six months. The follow-up period varied from three to 12 years. Hip pain was regularly relieved and abduction and rotation of the joints were improved. Those with post-traumatic or idiopathic necrosis did better than those with cortisone-induced necrosis.

Adolescent↗

Internal fixation of ununited femoral neck fractures combined with muscle-pedicle bone grafting.

Fifty-six patients with ununited intracapsular fractures of the femoral neck were treated by internal fixation and muscle-pedicle bone grafting. All had some absorption of the femoral neck, and many had avascular necrosis of the femoral head. At operation the sclerosed surfaces of the fractures were freshened, the avascular femoral head was decompressed and the muscle-pedicle graft was fixed with silk thread wrapped around pins. Satisfactory union occurred in 42 patients (75%), and delayed union in seven, of whom four (7%) eventually united without further treatment and three united after osteotomy. Non-union occurred in five patients and technical failure in two.

Adolescent↗

Treatment of post-traumatic avascular necrosis of the femoral head by multiple drilling and muscle-pedicle bone grafting. Preliminary report.

Twenty-nine patients with avascular necrosis of the femoral head after injury have been treated by operation. Multiple drilling of the femoral head was performed, necrotic bone removed and a muscle-pedicle bone graft implanted into the head and neck of the femur. In 17 of the patients the necrosis was associated with an un-united femoral neck fracture, in 11 it occurred after the fracture had united, and one case followed reduction of a dislocated hip. The hips became painless soon after operation. The patients were young (average age 35 years), and full weight-bearing was not allowed for several months. The follow-up period ranged from 22 to 64 months. The results were excellent in 20 patients, good in five, fair in three and poor in one.

Adolescent↗

Restoration of dynamic stability of the patella by pes anserinus transposition. A new approach.

Lateral instability of the patella was found after recurrent, habitual and permanent dislocations. Contracture of soft tissues lateral to the patella only occurred with habitual and permanent dislocations, but medial laxity was present in all cases. After adequate release of the lateral contracture, the medial stability was improved by transposition of the lower three-quarters of the pes anserinus to the medial border of the patella, and the patellar ligament. This created a relatively unstretchable physiological sling which ensured dynamic stability of the patella. Six recurrent, 21 habitual and nine permanent dislocations of the patella were treated by this method. Results were excellent in 21 patients, good in 13 and fair in two. The follow-up period varied from 21 to 84 months. There have been no recurrences to date.

Adolescent↗

Fracture healing.

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Fractures, Bone↗