Background: A recent study found that after median term follow-up disability correlated with pain rather than the limited residual impairments in motion and strength. We studied impairment and disability an average of twenty-one years after injury in a cohort of Dutch patient, with the hypothesis that both impairment and disability would be lower in patients that were skeletally immature at the time of injury.

Methods: Seventy-one patients were evaluated an average of 21 years after injury. The majority of the 35 skeletally immature patients were treated conservatively with closed reduction and cast immobilization and the majority of the 36 skeletally mature patients were treated with plate and screw fixation. Objective evaluation included radiographs and measurements of range of motion and grip strength. Questionnaires were used to measure arm-specific disability (Disabilities of the Arm, Shoulder and Hand: DASH), misinterpretation or over interpretation of pain (Pain Catastrophizing Scale-PCS-), and depression (CES-D). Multivariable analysis of variance and multiple linear regression were used to compare patients that were skeletally mature and immature at the time of injury and to identify predictors of arm-specific disability (SPSS 17.0, SPSS inc., Chicago).

Results: There were 44 men and 27 women with a an average age of forty-one at time of follow-up (range, 20 to 81). Fractures were classified as AO/OTA-type A3 in 46 patients (simple), B3 in 18 (including wedge fragment) and C fractures in 7 patients (comminuted). The average DASH score was 8 points (0 to 54) and 73% reported no pain. Both rotation and wrist flexion/extension were 91% of the uninjured side; grip strength was 94%. There were small, but significant differences in rotation (151 versus 169 degrees, p=0.004) and wrist flexion/extension (123 versus 142 degrees, p=0.002), but not disability between skeletally mature and immature patients. The best predictors of DASH score were nerve damage, pain and grip strength, explaining 56% of the variation in DASH scores. Disability did not correlate with depression or misconceptions about pain.

Conclusions: Twenty-one years after initial fracture, both skeletally immature and mature patients have limited impairment (averaging over 90% motion and grip strength) and disability after non operative and operative treatment respectively. Patients that were skeletally immature at the time of injury had better motion, but comparable disability. Disability correlated with pain rather than motion, but did not correlate with psychosocial measures.

Background: Extra-articular fractures of the distal radius in children are most often treated with closed reduction and cast immobilization. The purpose of this retrospective study was to evaluate long term (> 12 years follow-up) objective and subjective outcomes in a consecutive series of pediatric patients treated with closed reduction with standardized outcome instruments. We hypothesized that children treated with closed reduction and cast immobilization have little or no objective functional impairment in later life and therefore subjective factors are the strongest determinants of outcome.

Methods: Twenty-seven patients with an average age at time of injury of 9 years (range, five to sixteen years) were evaluated at an average of twenty-one years (range, twelve to twenty seven years) after injury (patients aged 21 to 39) after closed reduction of an extra-articular distal radius fracture. Patients were evaluated using 2 physician-based evaluation instruments (modified Mayo wrist score; MMWS, and the Sarmiento modification of the Gartland and Werley score; MGWS) and an upper extremity-specific health status questionnaire (Disabilities of the Arm, Shoulder and Hand; DASH) questionnaire. Radiographic measurements were also made. Multivariable analysis of variance and multiple linear regression modelling were used to identify the degree to which various factors affect variability in the scores derived with these measures.

Results: All fractures had healed without significant loss of alignment. Final functional results according to the MGWS were rated as excellent or good in all patients. The average MMWS score was 90 points, and the median DASH score was 0 points. Twenty patients (74%) considered themselves pain free. Bivariate analysis revealed pain -as rated according to scales used in the MMWS- and age at time of injury to be correlated with DASH scores, with pain as the only independent predictor of patient-based outcome in multivariable analysis. This explains almost three quarters of the variability in DASH scores. Pain, range of motion, and radiographic measurement of radial length correlated with the physician based scoring system MMWS;

Conclusions: Twenty-one years after injury 96% of patients have a satisfactory outcome according to physician-based MMWS categorical ratings and patient-based DASH scores. It is remarkable that pain explained 74% of the variation in DASH scores. Perhaps when there is very little impairment, subjective factors are more important determinants of disability.