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Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_13 | Pages 10 - 10
1 Nov 2019
Kheiran A Ngo DN Bindra R Wildin CJ Ullah A Bhowal B Dias JJ
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The primary aim of this study was to identify the rate of osteoarthritis in scaphoid fracture non-union. We also aimed to investigate whether the incidence of osteoarthritis correlates with the duration of non-union(interval), and to identify the variables that influence the outcome. We retrospectively reviewed 273 scaphoid fracture non-union presented between 2007 and 2016. Data included patient demographics, interval, fracture morphology, grade of osteoarthritis (Kellgren-Lawrence) and scaphoid non-union advanced collapse (SNAC), and overall health-related quality of life. Patients were divided into two groups (SNAC and Non-SNAC). Group differences were analysed using Mann-Whitney U test and association with Pearson's correlations. A two-sided p-value of <0.05 was considered significant.

The scaphoid fracture non-union were confirmed on CT scans (n=243) and plain radiographs (n=35). The subjects were 32 females and 260 males with the mean age of 33.8 years (SD, 13.2). The average interval was 3.1 years (range, 0–45 years). Osteoarthritis occurred in 58% (n=161) of non-unions, and 42% (n=117) had no osteoarthritis. In overall, 38.5% (n=107) had SNAC-1, 9% (n=25) with SNAC-2, and 10.4% (n=29) presented with SNAC-3. The mean interval in the non-SNAC group was 1.2 years, and in SNAC 1,2, and 3 were 2.6, 6.8, and 11.1 years, respectively. The average summary index in SNAC and non- SNAC groups was 0.803 and 0.819, respectively. Our results also showed a significant correlation between advanced osteoarthritis and proximal fracture non-unions(P<0.05).

We concluded that there is no clear correlation between the interval and the progression of osteoarthritis. SNAC was more likely to occur in fractures aged 2 years or older.


Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_I | Pages 26 - 26
1 Jan 2003
Wildin CJ Bhowal B Dias JJ
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The benefits and risks of early fixation of scaphoid fractures were investigated in 88 patients in the working age group with clear bicortical fractures. Patients were randomised using a random number sheet into 44 who had early internal fixation using a Herbert Screw without a cast and 44 who were treated conservatively in a Colles’ type plaster cast for eight weeks. Patients were reviewed at 2,8,12,26 and 52 weeks with pain severity, tenderness, swelling, wrist movement, grip strength, the Patient Evaluation Measure (PEM) outcome score and x-rays assessed at each visit.

There was no difference between groups for age, sex, nature of injury, dominance, side injured or type of scaphoid fracture. The two groups were similar for pain severity at each of the intervals. Eight of the conservative group and one fracture in the operated group did not unite (p=0.01).

At the 8th and 12th week visits the operated group was better than those treated in a cast for wrist range, grip strength and PEM score (less is better). Thereafter there was no difference between groups.

Patients operated on returned to work at a mean of 6 weeks after their injury compared to 11 weeks for those treated conservatively. There were no serious complications, 6 patients had hypertrophic or itchy scars and one had hypoaesthesia in the palmar cutaneous branch of the median nerve distribution.

Early fixation of scaphoid fractures can be offered as an alternative to cast immobilisation with good early benefits and low risk, however the surgery can be technically difficult.