The aim of this study was two-fold; firstly, to investigate the construct validity of the Disability of the Arm, Shoulder and Hand (DASH) score in patients following injuries to the upper and lower limbs, and to confirm that DASH score does not measure disability solely attributed to the upper limb. Secondly, to create a modified DASH questionnaire (M2 DASH) with fewer questions that can discriminate clearly between disabilities due to problems at the upper limb, and is more specific to the upper limb. Patients were asked to fill in the DASH questionnaire in a fracture clinic following ethical approval. This included upper limb injuries (79), lower limb injuries (61) and control subjects (52). The median DASH scores for the three groups were 57, 16 and one respectively. The DASH scores varied significantly between the three groups (Kruskal-Wallis: p<
0.001); the scores for the upper limb group were higher than the lower limb group, and the scores for the lower limb group was higher than the control group (Mann-Whitney: p<
0.001). The M2 DASH questionnaire was developed using questions specific to the upper limb and included questions 1–4, 6, 13–17, 21–23 and 26–30. The median M2 DASH scores for the three groups were 50, 7 and 0 respectively. The revised questionnaire score was then calculated for the upper limb group and a correlation study showed good correlation between the two questionnaires. Our study shows that the original DASH questionnaire is not specific for the upper limb. This has important implications in measuring response in injuries and disease that involve both upper and lower limbs. We have devised a revised questionnaire that we suggest is referred to as M2 DASH questionnaire. The M2 DASH questionnaire has the advantage of being more specific for the upper limb than the DASH questionnaire.
We feel that for a common fracture such as distal radial fractures an ideal implant should be easily reproducible with a low complication rate.
The aims of this study were to determine union rates and hardware complications, and to assess whether the “non-toggle” proximal locking option prevented screw back-out.
Thirty-six fractures (95%) went on to unite following treatment with the Polarus nail. Of the two fractures that failed to unite one had an infective non-union and the other developed avascular necrosis with non-union of the surgical neck. Twelve patients (32%) developed post-operative hardware complications. In nine (24%) there was backing out of the proximal locking screws, but only two patients had symptoms requiring screw removal. In five patients (13%) the nail was prominent proximally, causing impingement. In one patient (3%) the proximal screws penetrated the gleno-humeral joint, although this was asymptomatic. There was backing-out in six of the 21 patients (29%) in which the standard 5.0 mm proximal locking screws were used. This compared with three out of 14 patients (21%) in which the 5.3 mm “non-toggling” screws were used. The difference in the rate of screw backing-out between the two groups was significant (P = 0.0474, Fisher’s Exact test). In three patients a mixture of 5.0 and 5.3 mm screws was used.
We report our experience of revision shoulder arthroplasty at Wrightington Hospital. Thirty-Nine patients had undergone revision surgery and followed up for a minimum of two years. Patients were scored using the Constant score and the ASES score pre-operatively and post operatively. All patients had X-ray evaluation for loosening and migration. Of the thirty-nine patients, 16 were failed humeral head replacement (HHR) and 16 were failed total shoulder replacement (TSR). All but two of the HHR were revised for glenoid erosion to a TSR, there was an equal proportion of patients with rheumatoid arthritis and osteoarthritis. Of the 16 patients undergoing revision surgery for failed TSR 6 were rheumatoid, 4 had osteoarthritis and 5 had posttraumatic arthritis. The main reasons for revision include glenoid loosening (7) instability (4) and peri-prosthetic fracture (2). The average constant scores post operatively for HHR and TSR were 35.5 (sd+/− 21.1) and 29.1 (sd+/− 12.1) respectively. The average ASES scores for HHR and TSR were 60.5(sd +/ 27.8) and 50.1(sd +/− 22.0) respectively. There was no statistical difference between the two groups in respect to the constant scores (p value 0.18) or ASES scores (p value 0.16). Overall, the pain relief was good post operatively following both HHR and TSR. The mean visual analogue score for pain following HHR was 3.2 and following TSR 3.5. Range of movement, function and strength was poor following both HHR and TSR. HHR fail in a predictable way and can be revised with conversion to a TSR. TSR fail in a variety of ways and there revision surgery is demanding and complex. Both types of revision offer good pain relief but poor function.