Ujjwal Debnath - Academia.edu (original) (raw)

Papers by Ujjwal Debnath

Orthopaedic Proceedings, Mar 1, 2008

Purpose: This is a retrospective study, analysing the long term outcome following Chiari osteotom... more Purpose: This is a retrospective study, analysing the long term outcome following Chiari osteotomy and varus derotation osteotomy, which was performed as a part of one stage surgical reconstruction for painful subluxed or dislocated hips in cerebral palsy patients Methods: Between 1986 and 1993, 12 hips in 11 patients underwent the above procedure. Adequate hip reduction was achieved in 11 hips and an acceptable reduction in the other. Immediate pain relief and subsequent improvement in range of movement of the hip, sitting posture and ease of perineal care was recorded in all. Average age at the surgery was 14.1 (9.1–17.8) years. At the recent follow-up, patients were seen along with the parents or carers and reassessed for pain, sitting comfort, mobility and ease of perineal care. Radiographs were obtained and assessed for acetabular cover, degree of femoral head lateralisation, changes in the hip joint including secondary arthritic changes Results: At an average follow-up of 13.4 years (range 8.1–17.2 years), all patients remain pain free and continue to maintain improved sitting posture and personal hygiene. Improvement to mobility was marginal, but those who were community walkers to begin with benefited the most. No significant progressive arthritic changes or lateral migration were seen in any of the patients except one, in whom only a partial reduction was achieved. Minor joint changes were seen in 2 other patients. Conclusions: Overall, Chiari osteotomy produces lasting benefits and the possible avascular necrosis and secondary arthritic changes in the hip joint appear to be minimal when compared with the long term benefits

Orthopaedic Proceedings, Mar 1, 2008

Purpose: To evaluate the outcome of salvage surgery with external fixation in these rare and seve... more Purpose: To evaluate the outcome of salvage surgery with external fixation in these rare and severe lower limb injuries Methods: Eight patients (7M: 1F) with mean age of 28 years (range −18 −35 years) were included. Four had Grade 3 open fractures of the distal tibia and 5 had open foot fractures. Two had neurovascular injuries. Four patients had associated injuries with mean ISS of 9 (range 8–16) and a mean MESS score of 3.5 (3–7). All had undergone some form of internal and external fixation within approximately 24 hours (8 hrs to 4 days). The mean follow up period was two years (range 1 – 4 years). At final follow-up patient’s health was measured using SF-36 questionnaire. Results: Six patients had their fractures healed at a mean of 4.8 months (4–9 m). Two patients had fully functional foot with occasional complaints of painful ankle. Two patients had CRPS1 undergoing treatment. Two patients are unable to walk due to chronic pain and deformity. Comparison of the SF -36 scores with the age-matched UK normal controls without foot and ankle injuries showed significantly worse scores in physical function (PF: p Conclusions: Our surgical instinct dominates the decision-making favoring salvage with external fixation primarily rather than amputation in these young groups of patient. Should we be depleting our resources in salvaging these complex limb injuries?

International Orthopaedics, Jun 19, 2007

CRC Press eBooks, Jan 27, 2021

Orthopaedic Proceedings, Feb 1, 2012

Indian Journal of Orthopaedics, 2006

Journal of evolution of medical and dental sciences, May 25, 2022

Orthopaedic Proceedings, Aug 1, 2008

25 First metatarso phalangeal joint replacements using the MOJE implant were prospectively assess... more 25 First metatarso phalangeal joint replacements using the MOJE implant were prospectively assessed. There were 13 females and 10 males, with an average age of 60 years (range 45–71 years). The main indication for surgery was a symptomatic Hallux Rigidus. The minimum follow up period was 2 years (range 24–38 months). The patients were assessed before and after surgery using the AOFAS (American Orthopaedic Foot and Ankle Society Hallux Score). The mean pre operative AOFAS score was 45.60 and this improved to 85.63 after surgery. There was a significant improvement in the sub scale for pain, from 4.58 pre operatively to 31.25 post operatively. A 9.5 improvement in the range of motion was noted. The authors conclude that their study demonstrates that the use of the MOJE implant for the treatment of Hallux Rigidus is a safe and useful option, although a more long term follow up is indicated.

Handbook of Orthopaedic Trauma Implantology, 2023

Handbook of Orthopaedic Trauma Implantology, 2023

Orthopaedic Proceedings, Sep 1, 2009

Introduction: Ronald McRae’s textbook clinical orthopaedic examination mentions “Capasso’s method... more Introduction: Ronald McRae’s textbook clinical orthopaedic examination mentions “Capasso’s method1 of evaluation of coronal plane deformity to be the most sensitive tool of measuring cobb angle. However there is no study to date evaluating/comparing this method against popular & widely used tools viz. cobbometer and traditional protractor. Objectives: To evaluate Capasso’s method against commonly used measurement aids w.r.t measurement of cobb angle in scoliosis. Summary of background data: Studies of Cobb method of measurement have multiple sources of error and intra & inter-observer variability. The Capasso’s method which is based on “bi-uni-vocal principle” views the scoliosis curve to be an arc of circumference and to be a true reflection of angular values and hence geometrically more valid. Methods: 24 scoliosis curves were measured by three different examiners on three separate occasions one week apart by 1) Capasso’s method 2) Cobbometer and 3) Traditional protractor on same set of hard copies of digital x-rays. The three set of Cobb angle readings obtained were statistically analysed for intra & inter-observer reliability and assessed for agreement between the three methods of clinical measurement. Results: The mean intra observer variability for protractor, cobbometer & Capasso’s methods were 8.50, 5.50 10.00 respectively. The cobb angle readings obtained by Capas-so’s method was higher than the other two methods for all magnitudes of the curves ( 600) and was more than two times the conventional readings for curves Discussion: This study demonstrates that Capasso’s method significantly overestimates the magnitude of scoliotic deformity esp. for curves

Orthopaedic Proceedings, Nov 1, 2002

Objective: To assess the clinical outcome and return to sport following surgical treatment of spo... more Objective: To assess the clinical outcome and return to sport following surgical treatment of spondylolysis in young sporting individuals. Design: A prospective outcome analysis of consecutive surgically treated cases of lumbar spondylolysis in young sporting individuals. Subjects: Twenty-two young sports persons (15M: 7F) with a mean age of 20.2 years (range 15–34 years) were surgically treated for radiographically confirmed spondylolysis between 1994 and 1999. Eleven patients were professional footballers and four were professional cricketers. Pre operative assessment included plain X-rays, SPECT imaging with planar bone scan and reverse gantry CT scans. All subjects had pre-operative Oswestry Disability Index (ODI) and SF36 scores recorded. Eighteen patients underwent Buck’s fusion and four patients underwent Scott’s fusion. A graduated exercise regime was commenced at 12 weeks. At two year follow-up nineteen patients had ODI and SF36 scores recorded. Outcome Measures: The clinical outcome in individual patients supported by statistical analysis of the pre operative and post-operative data was performed using SPSS (ver 10). Return to the sporting activity at the previous level was regarded as a successful outcome. Results: Eleven patients had bilateral spondylolysis at L5. Twenty patients had positive uptake on SPECT imaging and the remaining two were diagnosed to have lysis on CT scans alone. The average duration of back pain before the patients underwent surgery were 8.4 months (range 3–36 months). The mean lysis defect determined by CT was 3.5 mm (range 1–8 mm). The mean pre-operative and post-operative ODIs were 40.5 and 12.4 respectively (SEpreop = 2.06 and SEpostop = 3.05). The mean scores of physical health component of SF36 improved from 27.1 to 47.8 (SEmean = 1.1 and 1.7 respectively). The mean scores of mental health component of SF36 improved from 39.1 to 55.3 (SEmean = 0.9 and 1.4 respectively) [P Conclusions: The surgical repair of bilateral spondylolysis with Buck’s fusion in professional sportsmen and women results in a significant improvement in Oswestry Disability scores (P

Orthopaedic Proceedings, Feb 1, 2003

To determine how long after injury a single photon emission computed tomography (SPECT) scan may ... more To determine how long after injury a single photon emission computed tomography (SPECT) scan may remain positive in cases of symptomatic posterior element lumbar stress injuries. SPECT scans can identify posterior element lumbar stress injuries earlier than other imaging modalities. As these lesions evolve and the spondylolysis becomes chronic, the SPECT scan tends to revert to normal even though healing of the defect has not occurred. The aim of this study was to determine how long after initial injury a SPECT scan might remain positive. One hundred and sixty-five patients (85 male, 80 female) between the ages of 8 and 38 years with suspicion of lumbar spondylolysis or posterior element lumbar stress injuries were investigated. All patients underwent plain radiographs, planar bone scintigraphy and SPECT imaging. The duration of symptoms at clinical assessment was recorded. The age, sex, symptom reproduction on flexion or extension, level of sporting activity, and the Oswestry Disability Index both pre- and post-treatment were also recorded. SPECT positive images (hot scans) were depicted as cases and SPECT negative images as controls. Univariate and multivariate analysis was performed. Eighty-five patients (63 male, 22 female) had positive SPECT scans (cases); eighty had negative scans (controls). The mean age at onset of symptoms was 20.2 years for cases and 17.4 years for controls. Bilateral increased uptake on SPECT scan was more common than unilateral. The commonest site for increased uptake was the posterior elements of the fifth lumbar vertebra. Low back pain in extension was more common in SPECT positive cases. The mean time from injury / onset of symptoms to a positive SPECT scan was 7.1 months (range 5.2–9.2 months) and to a negative SPECT scan was 22.5 months (range 16.8–28.4 months). Intense scintigraphic activity in the posterior elements of the lumbar spine was associated with a more recent injury and was concordant with the patient’s history and physical examination. Chronic, un-united spondylolysis was often scintigraphically occult. There was a window of approximately six months from the onset of symptoms to investigation after which the sensitivity of SPECT imaging diminished.

Indian Journal of Orthopaedics, 2005

ABSTRACT

International Journal of Orthopaedic Surgery

The impact factor (IF) for peer-reviewed orthopaedic journals has increased in the recent years, ... more The impact factor (IF) for peer-reviewed orthopaedic journals has increased in the recent years, so has the number of journals. The publication of high-level research in orthopaedics has considerable importance of citing good quality evidence for impact on day-to-day practice. Transparency and rigorous engagement of reviewers and authors in the peer review process may improve the quality of publication which may help developing practice guidelines. This article seeks to suggest simple ways to have effective peer review process which can maximize publication success and improve the IF.

Orthopaedic Proceedings, Mar 1, 2008

Purpose: This is a retrospective study, analysing the long term outcome following Chiari osteotom... more Purpose: This is a retrospective study, analysing the long term outcome following Chiari osteotomy and varus derotation osteotomy, which was performed as a part of one stage surgical reconstruction for painful subluxed or dislocated hips in cerebral palsy patients Methods: Between 1986 and 1993, 12 hips in 11 patients underwent the above procedure. Adequate hip reduction was achieved in 11 hips and an acceptable reduction in the other. Immediate pain relief and subsequent improvement in range of movement of the hip, sitting posture and ease of perineal care was recorded in all. Average age at the surgery was 14.1 (9.1–17.8) years. At the recent follow-up, patients were seen along with the parents or carers and reassessed for pain, sitting comfort, mobility and ease of perineal care. Radiographs were obtained and assessed for acetabular cover, degree of femoral head lateralisation, changes in the hip joint including secondary arthritic changes Results: At an average follow-up of 13.4 years (range 8.1–17.2 years), all patients remain pain free and continue to maintain improved sitting posture and personal hygiene. Improvement to mobility was marginal, but those who were community walkers to begin with benefited the most. No significant progressive arthritic changes or lateral migration were seen in any of the patients except one, in whom only a partial reduction was achieved. Minor joint changes were seen in 2 other patients. Conclusions: Overall, Chiari osteotomy produces lasting benefits and the possible avascular necrosis and secondary arthritic changes in the hip joint appear to be minimal when compared with the long term benefits

Orthopaedic Proceedings, Mar 1, 2008

Purpose: To evaluate the outcome of salvage surgery with external fixation in these rare and seve... more Purpose: To evaluate the outcome of salvage surgery with external fixation in these rare and severe lower limb injuries Methods: Eight patients (7M: 1F) with mean age of 28 years (range −18 −35 years) were included. Four had Grade 3 open fractures of the distal tibia and 5 had open foot fractures. Two had neurovascular injuries. Four patients had associated injuries with mean ISS of 9 (range 8–16) and a mean MESS score of 3.5 (3–7). All had undergone some form of internal and external fixation within approximately 24 hours (8 hrs to 4 days). The mean follow up period was two years (range 1 – 4 years). At final follow-up patient’s health was measured using SF-36 questionnaire. Results: Six patients had their fractures healed at a mean of 4.8 months (4–9 m). Two patients had fully functional foot with occasional complaints of painful ankle. Two patients had CRPS1 undergoing treatment. Two patients are unable to walk due to chronic pain and deformity. Comparison of the SF -36 scores with the age-matched UK normal controls without foot and ankle injuries showed significantly worse scores in physical function (PF: p Conclusions: Our surgical instinct dominates the decision-making favoring salvage with external fixation primarily rather than amputation in these young groups of patient. Should we be depleting our resources in salvaging these complex limb injuries?

International Orthopaedics, Jun 19, 2007

CRC Press eBooks, Jan 27, 2021

Orthopaedic Proceedings, Feb 1, 2012

Indian Journal of Orthopaedics, 2006

Journal of evolution of medical and dental sciences, May 25, 2022

Orthopaedic Proceedings, Aug 1, 2008

25 First metatarso phalangeal joint replacements using the MOJE implant were prospectively assess... more 25 First metatarso phalangeal joint replacements using the MOJE implant were prospectively assessed. There were 13 females and 10 males, with an average age of 60 years (range 45–71 years). The main indication for surgery was a symptomatic Hallux Rigidus. The minimum follow up period was 2 years (range 24–38 months). The patients were assessed before and after surgery using the AOFAS (American Orthopaedic Foot and Ankle Society Hallux Score). The mean pre operative AOFAS score was 45.60 and this improved to 85.63 after surgery. There was a significant improvement in the sub scale for pain, from 4.58 pre operatively to 31.25 post operatively. A 9.5 improvement in the range of motion was noted. The authors conclude that their study demonstrates that the use of the MOJE implant for the treatment of Hallux Rigidus is a safe and useful option, although a more long term follow up is indicated.

Handbook of Orthopaedic Trauma Implantology, 2023

Handbook of Orthopaedic Trauma Implantology, 2023

Orthopaedic Proceedings, Sep 1, 2009

Introduction: Ronald McRae’s textbook clinical orthopaedic examination mentions “Capasso’s method... more Introduction: Ronald McRae’s textbook clinical orthopaedic examination mentions “Capasso’s method1 of evaluation of coronal plane deformity to be the most sensitive tool of measuring cobb angle. However there is no study to date evaluating/comparing this method against popular & widely used tools viz. cobbometer and traditional protractor. Objectives: To evaluate Capasso’s method against commonly used measurement aids w.r.t measurement of cobb angle in scoliosis. Summary of background data: Studies of Cobb method of measurement have multiple sources of error and intra & inter-observer variability. The Capasso’s method which is based on “bi-uni-vocal principle” views the scoliosis curve to be an arc of circumference and to be a true reflection of angular values and hence geometrically more valid. Methods: 24 scoliosis curves were measured by three different examiners on three separate occasions one week apart by 1) Capasso’s method 2) Cobbometer and 3) Traditional protractor on same set of hard copies of digital x-rays. The three set of Cobb angle readings obtained were statistically analysed for intra & inter-observer reliability and assessed for agreement between the three methods of clinical measurement. Results: The mean intra observer variability for protractor, cobbometer & Capasso’s methods were 8.50, 5.50 10.00 respectively. The cobb angle readings obtained by Capas-so’s method was higher than the other two methods for all magnitudes of the curves ( 600) and was more than two times the conventional readings for curves Discussion: This study demonstrates that Capasso’s method significantly overestimates the magnitude of scoliotic deformity esp. for curves

Orthopaedic Proceedings, Nov 1, 2002

Objective: To assess the clinical outcome and return to sport following surgical treatment of spo... more Objective: To assess the clinical outcome and return to sport following surgical treatment of spondylolysis in young sporting individuals. Design: A prospective outcome analysis of consecutive surgically treated cases of lumbar spondylolysis in young sporting individuals. Subjects: Twenty-two young sports persons (15M: 7F) with a mean age of 20.2 years (range 15–34 years) were surgically treated for radiographically confirmed spondylolysis between 1994 and 1999. Eleven patients were professional footballers and four were professional cricketers. Pre operative assessment included plain X-rays, SPECT imaging with planar bone scan and reverse gantry CT scans. All subjects had pre-operative Oswestry Disability Index (ODI) and SF36 scores recorded. Eighteen patients underwent Buck’s fusion and four patients underwent Scott’s fusion. A graduated exercise regime was commenced at 12 weeks. At two year follow-up nineteen patients had ODI and SF36 scores recorded. Outcome Measures: The clinical outcome in individual patients supported by statistical analysis of the pre operative and post-operative data was performed using SPSS (ver 10). Return to the sporting activity at the previous level was regarded as a successful outcome. Results: Eleven patients had bilateral spondylolysis at L5. Twenty patients had positive uptake on SPECT imaging and the remaining two were diagnosed to have lysis on CT scans alone. The average duration of back pain before the patients underwent surgery were 8.4 months (range 3–36 months). The mean lysis defect determined by CT was 3.5 mm (range 1–8 mm). The mean pre-operative and post-operative ODIs were 40.5 and 12.4 respectively (SEpreop = 2.06 and SEpostop = 3.05). The mean scores of physical health component of SF36 improved from 27.1 to 47.8 (SEmean = 1.1 and 1.7 respectively). The mean scores of mental health component of SF36 improved from 39.1 to 55.3 (SEmean = 0.9 and 1.4 respectively) [P Conclusions: The surgical repair of bilateral spondylolysis with Buck’s fusion in professional sportsmen and women results in a significant improvement in Oswestry Disability scores (P

Orthopaedic Proceedings, Feb 1, 2003

To determine how long after injury a single photon emission computed tomography (SPECT) scan may ... more To determine how long after injury a single photon emission computed tomography (SPECT) scan may remain positive in cases of symptomatic posterior element lumbar stress injuries. SPECT scans can identify posterior element lumbar stress injuries earlier than other imaging modalities. As these lesions evolve and the spondylolysis becomes chronic, the SPECT scan tends to revert to normal even though healing of the defect has not occurred. The aim of this study was to determine how long after initial injury a SPECT scan might remain positive. One hundred and sixty-five patients (85 male, 80 female) between the ages of 8 and 38 years with suspicion of lumbar spondylolysis or posterior element lumbar stress injuries were investigated. All patients underwent plain radiographs, planar bone scintigraphy and SPECT imaging. The duration of symptoms at clinical assessment was recorded. The age, sex, symptom reproduction on flexion or extension, level of sporting activity, and the Oswestry Disability Index both pre- and post-treatment were also recorded. SPECT positive images (hot scans) were depicted as cases and SPECT negative images as controls. Univariate and multivariate analysis was performed. Eighty-five patients (63 male, 22 female) had positive SPECT scans (cases); eighty had negative scans (controls). The mean age at onset of symptoms was 20.2 years for cases and 17.4 years for controls. Bilateral increased uptake on SPECT scan was more common than unilateral. The commonest site for increased uptake was the posterior elements of the fifth lumbar vertebra. Low back pain in extension was more common in SPECT positive cases. The mean time from injury / onset of symptoms to a positive SPECT scan was 7.1 months (range 5.2–9.2 months) and to a negative SPECT scan was 22.5 months (range 16.8–28.4 months). Intense scintigraphic activity in the posterior elements of the lumbar spine was associated with a more recent injury and was concordant with the patient’s history and physical examination. Chronic, un-united spondylolysis was often scintigraphically occult. There was a window of approximately six months from the onset of symptoms to investigation after which the sensitivity of SPECT imaging diminished.

Indian Journal of Orthopaedics, 2005

ABSTRACT

International Journal of Orthopaedic Surgery

The impact factor (IF) for peer-reviewed orthopaedic journals has increased in the recent years, ... more The impact factor (IF) for peer-reviewed orthopaedic journals has increased in the recent years, so has the number of journals. The publication of high-level research in orthopaedics has considerable importance of citing good quality evidence for impact on day-to-day practice. Transparency and rigorous engagement of reviewers and authors in the peer review process may improve the quality of publication which may help developing practice guidelines. This article seeks to suggest simple ways to have effective peer review process which can maximize publication success and improve the IF.