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Biomedical subjects

S C Deshmukh

Publications and source records attributed to S C Deshmukh.

10 recordsLinked to original sources
PubMed2004

Average versus maximum grip strength: which is more consistent?

The average of three consecutive measurements is the most frequently used method for grip strength assessment. The purpose of this study was to compare the consistency of the maximum value with that of the average value of three consecutive measurements of grip strength. One hundred healthy volunteers participated in this study. Three measurements of grip strength were taken on two occasions separated by 2 weeks. For each hand, two average values and two maximum values were obtained. Ninety-five per cent limits of agreement for the average method were - 8.3 (-23%) to +7.2 (+20%)kg and for the maximum method were - 8.8 (-23%) to + 8 (+21%)kg. Both methods of grip strength assessment were found to be highly consistent with no statistically significant difference.

Adult↗
PubMed2004

Effect of wrist position on power grip and key pinch strength following carpal tunnel decompression.

Power grip and thumb key pinch strength were measured pre- and immediately postoperatively in 30 patients with carpal tunnel syndrome while the wrist was in flexion and extension. The carpal tunnel decompression was performed under local infiltration with 1% lignocaine. Grip strength decreased more in wrist flexion than in wrist extension. No difference was found in thumb pinch strength. The authors conclude that some of the immediate postoperative loss of grip strength in wrist flexion can be attributed to prolapse of flexor tendons out of the carpal tunnel in this position.

Biomechanical Phenomena↗
PubMed2004

Complex fracture-dislocation of the proximal interphalangeal joint of the hand. Results of a modified pins and rubbers traction system.

We reviewed 13 patients with a complex fracture-dislocation of the proximal interphalangeal joint of a finger and one patient with a complex fracture-dislocation of the interphalangeal joint of thumb. We had treated these injuries using a pins and rubbers traction system which had been modified to avoid friction of the pins against the bone during mobilisation of the joint in order to minimise the risk of osteolysis. A Michigan hand outcome questionnaire was used for subjective assessment. The active range of movement (AROM) of the proximal and distal interphalangeal joints and the grip strength were used for objective assessment. The mean follow-up was 34 months (12 to 49). The mean normalised Michigan hand outcome score was 84. The mean AROM of the proximal interphalangeal joint was 85 degrees and that of the distal interphalangeal joint 48 degrees. The mean grip strength was 92% of the uninvolved hand. Twelve patients have returned to their original occupations. There has been no radiological osteolysis or clinical osteomyelitis. This modified traction system has given acceptable results with a low rate of complications. It is light, cheap, effective and easy to apply.

Adolescent↗
PubMed2003

Palmar cortical angle of the distal radius: a radiological study.

Fifty lateral radiographs of normal wrists were viewed to determine the palmar cortical angle of the distal radius. The palmar cortical angle is different to its previously described palmar tilt or angulation. The mean value for the palmar cortical angle was 37 degrees (range, 26-50 degrees). This may be clinically important in the design of palmar plates for the distal radius.

Humans↗
PubMed2003

The position of the centre of the distal radial articular surface in the sagittal plane: a radiological study.

Using a digital vernier calliper, measurements of the position of the centre of the distal radial articular surface in the sagittal plane with respect to the long axis of the distal radius were made on 50 lateral radiographs of normal wrists. In all 50 cases, the centre of the distal radial articular surface was palmar on the long axis of the radius. The mean value for this palmar position was 5.3mm (44% of the radial shaft width). There was no correlation between the position of the centre of the distal radial articular surface and either the width of the radial shaft, the length of the articular surface of the distal radius or the age or sex of the individuals. However, the position of the centre of rotation was found to correlate with palmar tilt. The palmar position of the centre of the distal radial articular surface on the long axis of the radius may be biomechanically important.

Adolescent↗
PubMed2001

Tangential views of the articular surface of the distal radius-aid to open reduction and internal fixation of fractures.

Open reduction and internal fixation of comminuted, displaced intra-articular or potentially unstable fractures of the distal radius with plate and screws has increasingly become a favoured treatment. Intra-operative assessment of fixation with the help of an image intensifier has always been difficult because of the anatomy of the distal radius. Imaging of the implants placed as distal as possible to achieve satisfactory fixation often shows the screws to be penetrating the joint. We describe two new radiographic views of the wrist joint, which we used intra-operatively in ten patients undergoing open reduction and internal fixation of distal radius fractures. Screws were thought to have been penetrating the joint in the standard lateral views of all of them and in the standard antero-posterior views of eight of them.However, no screw was seen penetrating the joint in these new views. It was hence possible to place the plate distal enough to enable the screws to engage the sub-chondral bone. We recommend the use of these views in the open reduction and internal fixation of distal radius fractures.

Bone Plates↗
PubMed2000

Distal radioulnar joint incongruity after shortening of the ulna.

Coronal sections of the distal radioulnar joint (DRUJ) were studied in 13 preserved cadaveric wrists specimens before and after 2 mm of shortening of the ulna. The DRUJs were subclassified on the basis of the DRUJ angle and depth of the sigmoid notch. The changes in extent and location of area of contact and radioulnar separation were noted. Although reduction in area of contact occurred in every specimen and DRUJ type, the maximum radioulnar separation and reduction in area of contact occurred in the DRUJ type IB and IIB. This could be a possible factor producing point loading and subsequent occurrence of DRUJ remodelling in the long-term after shortening of the ulna.

Aged↗
PubMed1999

Blatt's capsulodesis for chronic scapholunate dissociation.

We have reviewed prospectively 44 cases of chronic scapholunate dissociation treated by Blatt's dorsal capsulodesis. The diagnosis was based on clinical and arthroscopic criteria. The minimum follow-up was 2 years. The results were analysed clinically and radiologically. Postoperatively statistically significant reductions in wrist movements and grip strengths were noted. Delay in surgery and presence of compensation claims were also statistically significant factors. Patients with a high column/row index had higher overall good and excellent results. The scapholunate gap, scapholunate angle, carpal height and the type of instability as diagnosed on arthroscopy and cineradiography did not affect the outcome significantly. The scapholunate gap, scapholunate angle and the carpal height did not change significantly after operation.

Adult↗