We carried out a randomised, prospective, multicentre clinical trial of the treatment of Colles’ fractures. A total of 339 patients was placed into two groups, those with minimally displaced fractures not requiring manipulation (151 patients) and those with displaced fractures which needed manipulation (188 patients). Treatment was by either a conventional Colles’ plaster cast (a control group) or with a prefabricated functional brace (the Aberdeen Colles’ fracture brace). Similar results were obtained in both groups with regard to the reduction and to pain scores but the brace provided better grip strength in the early stages of treatment. This was statistically significant after five weeks for both manipulated and non-manipulated fractures. At the tenth day the results were statistically significant only in manipulated fractures. There was no significant difference in the functional outcome between the two treatment groups. However, younger patients and those with less initial displacement had better functional results

We developed a new type of bioactive bone cement, CAP (Hydroxyapatite composite resin; composed of 77% w/w hydroxyapatite granules and bisphenol-A glycidyl methacrylate-based resin) for bony defect filling. Elastic modulus of CAP is similar to a cortical bone, while it is injectable before hardening and physiologically bonding with bone in 4 to 8 weeks. We present a new method of treatment for unstable Colles’ fracture with this material in clinical use. Experimental comminuted Colles’ fracture was produced in three fresh frozen cadavara. Fracture was reduced and fixed percutaneously with K-wires. 4.5mm drill hole was opened on the radial cortex 3cm proximal to the fracture site. Comminuted fragments were pushed-up to the subchondral area with a blunt rod and CAP was injected through the same way. After cement hardening, K-wires were removed. X-ray photos were examined before fracture, after fracture and after reconstruction with CAP, in order to evaluate the shape of the radius. CT was examined to evaluate the placement of CAP. Radiographic parameters of radii were well recovered after reconstruction with CAP. Over correction of the radial length was observed in one bone but good reduction was generally achieved (Table). This means realignment of the distal radioulnar joint, which results in good outcome clinically. In transverse section of CT, 41 to 69% (average 55%) of subchondral area was filled with CAP. Filling of CAP was better in an osteoporotic bone. These results show the usefulness of this material for treatment of unstable Colles’ fracture especially in osteoporotic patients

The October 2024 Wrist & Hand Roundup360 looks at: Circumferential casting versus plaster splinting in preventing redisplacement of distal radial fractures; Comparable outcomes for operative versus nonoperative treatment of scapholunate ligament injuries in distal radius fractures; Perceived pain during the reduction of Colles fracture without anaesthesia; Diagnostic delays and physician training are key to reducing scaphoid fracture nonunion; Necrotizing fasciitis originating in the hand: a systematic review and meta-analysis; Study design influences outcomes in distal radial fracture research; Long-term results of index finger pollicization for congenital thumb anomalies: a systematic review; Enhancing nerve injury diagnosis: the evolving role of imaging and electrodiagnostic tools

Unilateral Colles' fractures in 187 patients over the age of 55 years were studied in a randomised prospective trial: 97 fractures were minimally displaced and were treated either conventionally or in a crepe bandage; 90 displaced Colles' fractures were reduced and of these 47 were treated conventionally while 43 were encouraged to mobilise the wrist in a cast which restricted extension. Early wrist movement hastened functional recovery and led to earlier resolution of wrist swelling. Discomfort was no greater than in patients who were treated conventionally. The bony deformity, which recurred irrespective of the method of treatment, was not adversely affected by early mobilisation

To ascertain whether patients with Colles’ fracture should be investigated for osteoporosis and the risk of future fractures, we measured the bone mineral density of the distal radius of the other arm in 31 women patients and compared the results with those of a control group of 289 normal women. We divided the patients into two groups, those younger than 66 years and those older. In 25 patients we found values for bone mineral density which were lower than one standard deviation below the mean value for their age. Younger patients had a deficit greater than that expected for their ages. We believe that women with Colles’ fracture should be evaluated routinely for osteoporosis, particularly if they are under 66 years of age

The aim of this study was to assess patient-based outcome two years following non-operative management of displaced Colles fractures. 100 patients were evaluated at a minimum of two years after displaced Colles fracture. Fractures were reduced under regional anaesthesia and immobilised in a Colles-type cast for five weeks. The fractures were assessed radiographically by measurement of radial angle, dorsal tilt, radial shortening and carpal malalignment at the time of injury, post-manipulation, and after one and five weeks. The fractures were classified according to Frykman classification. A validated patient-based outcome questionnaire, using a visual analogue score, was used to assess outcome at the end of two years. 7 patients had died, 8 patients were unable to complete the questionnaire because of confusion and 5 were lost to follow-up. Complete outcome data were available on 80 patients. The median age was 61 years. The median pain score was 5 (25%-2 and 75%-12, range 0–100). There was loss of reduction, with more than 5° dorsal angulation and/or 5mm radial shortening in 70% cases. We found that age had no effect on patient outcome except that patients over 50 years complained of more finger stiffness The Frykman classification was an important prognostic factor and a higher grade resulted in worse outcome in a number of areas. Dorsal angulation had no significant effect and carpal malalignment correlated with poor visual appearance. Radial angle and radial shortening were both associated with increased complaints of wrist pain and stiffness. This prospective patient based outcome study has demonstrated that patients make a good functional recovery following nonoperative management of Colles fracture. 70% of our patients had a poor radiological outcome but few reported problems with pain and function at 2 years. Extra-articular malunion due to radial angulation and shortening was common and correlated with wrist pain and stiffness at two years. Frykman classification correlated with pain and functional outcome

Developments in plate technology have increased interest in the operative fixation of Colles' fracture. The vast majority of patients are treated non-operatively, yet there are few medium or long-term outcome studies. The aim of this study was to evaluate medium-term outcome of a cohort of patients who previously received treatment in a plaster cast. 236 patients entered two previous prospective, randomised control studies comparing closed reduction techniques or plaster cast type. Both studies showed no difference in clinical or radiological outcome between groups. 43% of this cohort had a final dorsal tilt of > 10° and 44% had final radial shortening of >2mm. All patients now have a minimum follow-up of five years and 60 have died. The remaining 176 patients were contacted by post and asked to complete two validated patient-based questionnaires: a modified Patient Evaluation Measure and a quickDASH. 112 replies were received. The mean age of patients is 67 years (range 23 – 91 years). 31 patients are employed and 57 retired. 77% of patients had a quickDASH score of less than 20. 59% of patients never experience wrist pain whilst 8% of patients have daily pain. All Patient Evaluation Measures have shown a median score of 12 or less (0=excellent, 100= terrible). The best score was for pain (median 4; IQR 2-12) and the worst for grip strength (median 12; IQR 4 – 41). No radiological outcome 5 weeks after injury correlated with any outcome score, except for dorsal tilt, which correlated with difficulty with fiddly tasks (p=0.04) and carpal malalignment which correlated with interference with work (p=0.04). In conclusion, our results show a good functional outcome five years after non-operative management of Colles' fracture. A degree of malunion is acceptable and in the light of our results the economic impact of surgery must be evaluated

Thirty patients who had sustained a Colles' fracture at least four years previously were examined functionally and radiographically. Seventeen had a good radiological result and 13 were considered to have malunion. Functionally the displaced group performed significantly worse than the undisplaced group. We conclude that malunion of a Colles' fracture results in a weak, deformed, stiff and probably painful wrist

The value of remanipulating a Colles' fracture which has redisplaced after primary reduction was assessed in 50 patients. In those over 60 years old, remanipulation failed to achieve a lasting improvement in position, while the majority of those under 60 years maintained a significant improvement in dorsal angulation. It is concluded that the elderly patient does not benefit from this procedure

The effect of involvement of the distal radio-ulnar joint on subsequent function was studied in 170 patients with Colles' fractures, reviewed for one year after cast removal. Patients with involvement of this joint had significantly weaker grips and a significantly greater incidence of pain and tenderness over the joint at all stages of follow-up. They also had a poorer range of supination at six months and at one year. The presence or absence of an ulnar styloid fracture was not related to the functional results

The use of Orthoplast cast-bracing to allow early hand function in the treatment of displaced Colles' fractures was investigated in 243 patients. They were randomly allocated into three groups: in the first a conventional Colles' type plaster was used; in the second an above-elbow cast-brace with the forearm in supination; and in the third a below-elbow cast-brace. Radiographic measurements were made at each stage of treatment, and the final anatomical result was scored using Sarmiento's (1975) criteria. Function was assessed at three months and at six months. The anatomical result was not influenced by the method of immobilisation but was related to the efficacy of reduction. Loss of position in the braces was no greater than in plaster. The functional result at three months also was uninfluenced by the method of immobilisation; it was, however, related to the severity of the initial displacement, and (to a lesser degree) to the anatomical result, an effect which was lost at six months. Early hand function and the supinated position advocated by Sarmiento were found to confer no anatomical or functional advantage; we could see no reason to change from the use of conventional plaster casts in the treatment of uncomplicated Colles' fractures

We report the results of a prospective study of the incidence of algodystrophy following Colles' fracture in 60 patients, using sensitive or quantitative techniques for the assessment of each feature of the syndrome. Nine weeks after fracture, 24 patients had evidence of vasomotor instability, 23 had significant tenderness of the fingers and 23 had lost finger movement. These three abnormalities were significantly associated (p less than 0.001). Swelling was also significantly associated with these three variables. There was no statistical association between the occurrence of algodystrophy and the patient's age or sex, the severity of the fracture, the number of reductions performed or the adequacy of the reduction. We conclude that algodystrophy constitutes a precisely definable and quantifiable syndrome which is more common than has been suspected

The results of a prospective controlled trial of early mobilisation of Colles' fractures in the elderly are presented. Early mobilisation produced less pain and a stronger grip. It did not lead to any greater loss of reduction of the fracture. However, there was no significant improvement in the final range of movement of the wrist. Immobilisation of the wrist for six weeks in plaster is extremely inconvenient for the elderly living alone and the patients greatly appreciated the reduction of this period of time to a minimum

In a prospective, controlled study 58 patients aged under 60 years with Colles' fractures were treated either by a forearm plaster or by the application of an external fixator. In 94% of those treated by a fixator it was possible to insert the distal pins of the frame into the fracture fragment, the fixation obtained being sufficient to forgo additional splintage. The external fixator proved more effective at holding the manipulated position, and the radiological loss of position during fracture union was minimal compared with that seen in patients treated in plaster

In a prospective study, 204 consecutive patients with displaced Colles' fractures had closed reduction then plaster immobilisation. Three different positions of the wrist in plaster were randomly allocated: palmar flexion, neutral and dorsiflexion. The results in the three groups were compared. Fractures immobilised with the wrist in dorsiflexion showed the lowest incidence of redisplacement, especially of dorsal tilt, and had the best early functional results. Immobilisation of the wrist in palmar flexion has a detrimental effect on hand function; it is suggested that it is also one of the main causes for redisplacement of the fracture. This is discussed in relation to the functional anatomy of the wrist and the mechanics of plaster fixation

We report a prospective, randomised, controlled trial of 50 severely displaced comminuted Colles' fractures treated by either external fixation or manipulation and plaster. Each patient was assessed radiographically throughout treatment, and functionally by an independent observer at three and six months. The functional result correlated with the anatomical result, which was significantly better in patients treated by external fixation. This resulted in significantly improved function especially in young patients, and also a lower complication rate. We recommend the use of external fixation for young patients with comminuted displaced Colles' fractures unless manipulation and plaster show excellent reduction

A prospective study was made over a three-year period of 900 consecutive unilateral Colles' fractures. The radiographic features at the time of fracture, after reduction and one week later were measured and correlated with grip strength and range of movement at three years. The most significant radiographic feature to influence the outcome was the presence of shortening of the radius one week after reduction of the fracture. Persistent dorsal tilt, radiocarpal joint involvement and ulnar styloid fracture were each associated with reduced range of movement, but had no effect on grip strength. Extension of the fracture into the distal radio-ulnar joint was associated with reduced grip strength but had no effect on range of movement. Radial tilt of the radial fragment did not correlate with any aspect of the result after three years

We describe a direct method of measuring the tightness of plaster casts. Tightness was measured weekly in 23 consecutive patients with Colles' fractures. Six had objective signs of algodystrophy nine weeks after the fracture. In these patients the plaster cast was significantly tighter during the first three weeks than in patients who did not develop algodystrophy. The complex relationship between these findings is discussed

Introduction: Fragility of the bone is widely regarded as a cause of Colles’ Fracture particularly in middle aged or elderly women[. 1. ]. However not every fall results in fracture of the wrist. The normal volar angle of the distal radius is said to be about 10 degrees although in one study the mean volar angulation was found to be 12 degrees with a range from 4 to 23 degrees[. 2. ]. We hypothesised that the volar angle of the distal radius or the position of the wrist at impact could affect where the peak stresses occurred during a fall onto the outstretched arm. We investigated the effect of these two variables on the location and magnitude of the peak stresses using finite element analysis. Materials and Method: A finite element model of the distal radius was constructed in MARC (MSC software, USA). The model was developed from CT data of the right wrist of a 46 year old male. The data was examined by edge detection software (Materialise, Belgium). The inner and outer boundaries of the cortex were imported as curves into MARC. A surface mesh of the distal radius was constructed, from which a 3D solid mesh of the distal radius was generated automatically. The volar angle was modified to represent between 5 to 25 degrees in 5 degree increments. The wrist position was also changed for each volar angle. This varied in 5 degree increments from 0 to 35 degrees, and then at 45, 75 and 90 degrees. Material properties assigned to cortical and cancellous bone were 20GPa and 6GPa respectively with a Poisson’s Ratio of 0.3. The model consisted of 17660 8 noded hexahedral elements and was fully fixed at the cut end of the proximal radius. For each volar angle a load of 500N and 400N was applied perpendicularly to the articular surface across the scaphoid and lunate fossa respectively. The magnitude and location of peak stresses in the proximal and distal radius were recorded. Results: Results show that the location and magnitude of peak stresses vary as a result of wrist position. Distally the stress rises with increasing dorsiflexion and at 35 degrees exceeds the load to failure. The volar angle does not influence the stresses unless it is 20 degrees or more. Proximally the volar angle had no effect, but if the wrist is in more than 75 degrees of dorsiflexion then the peak stresses exceeded the load to failure. Conclusion: Results show that a fall onto the outstretched arm will produce differential stresses in the radius depending on the position of the wrist at impact. The volar angle affected the stresses in the distal radius at greater than 20 degrees but proximally it did not. Proximally stresses above 130MPa (when the wrist is in more than 75 degrees of dorsiflexion) will subject the wrist to fracture[. 3. ]. Distally (when the wrist is in more than 35 degrees of dorsiflexion) with high volar angles (greater than 20 degrees) is likely to produce the conditions for a fracture (cancellous bone has been reported to fail as a result of fracture at 50 MPa [. 4. ] and for osteoporotic bone at 0.44MPa [. 4. ]

We report the results of a prospective randomised controlled trial of the management of 101 Colles' fractures in patients over the age of 55 years. Within two weeks of initial reduction 43 fractures had displaced with either more than 10 degrees dorsal angulation or more than 5 mm radial shortening. These patients were randomly divided into two groups: 21 were remanipulated and held by an external fixator; in the control group of 22 patients, the redisplacement was accepted and conservative treatment was continued. Patients treated with external fixation had a good anatomical result, but their function was no better than that of the control group. We found no correlation between final anatomical and functional outcome, and concluded that the severity of the original soft-tissue injury and its complications are the major determinants of functional end result