We describe the clinical and radiological results
of cementless primary total hip replacement (THR) in 25 patients
(18 women and seven men; 30 THRs) with severe developmental dysplasia
of the hip (DDH). Their mean age at surgery was 47 years (23 to
89). In all, 21 hips had Crowe type III dysplasia and nine had Crowe
type IV. Cementless acetabular components with standard polyethylene
liners were introduced as close to the level of the true acetabulum
as possible. The modular cementless S-ROM femoral component was
used with a low resection of the femoral neck. A total of 21 patients (25 THRs) were available for review at
a mean follow-up of 18.7 years (15.8 to 21.8). The mean modified
Harris hip score improved from 46 points pre-operatively to 90 at
final follow up (p <
0.001). A total of 15 patients (17 THRs; 57%) underwent revision of the
acetabular component at a mean of 14.6 years (7 to 20.8), all for
osteolysis. Two patients (two THRs) had symptomatic loosening. No
patient underwent femoral revision. Survival with revision of either
component for any indication was 81% at 15 years (95% CI 60.1 to
92.3), with 21 patients at risk. This technique may reduce the need for femoral osteotomy in severe
DDH, while providing a good long-term functional result. Cite this article:
The June 2013 Shoulder &
Elbow Roundup360 looks at: whether suture anchors are still the gold standard; infection and revision elbow arthroplasty; the variable success of elbow replacements; sliding knots; neurologic cuff pain and the suprascapular nerve; lies, damn lies and statistics; osteoarthritis; and one- or two-stage treatment for the infected shoulder revision.
The Motec cementless modular metal-on-metal ball-and-socket
wrist arthroplasty was implanted in 16 wrists with scaphoid nonunion
advanced collapse (SNAC; grades 3 or 4) and 14 wrists with scapholunate
advanced collapse (SLAC) in 30 patients (20 men) with severe (grades
3 or 4) post-traumatic osteoarthritis of the wrist. The mean age of
the patients was 52 years (31 to 71). All prostheses integrated
well radiologically. At a mean follow-up of 3.2 years (1.1 to 6.1)
no luxation or implant breakage occurred. Two wrists were converted
to an arthrodesis for persistent pain. Loosening occurred in one
further wrist at five years post-operatively. The remainder demonstrated close
bone–implant contact. The clinical results were good, with markedly
decreased Disabilities of the Arm Shoulder and Hand (DASH) and pain
scores, and increased movement and grip strength. No patient used
analgesics and most had returned to work. Good short-term function was achieved using this wrist arthroplasty
in a high-demand group of patients with post-traumatic osteoarthritis.
Bone loss involving articular surface is a challenging
problem faced by the orthopaedic surgeon. In the hand and wrist,
there are articular defects that are amenable to autograft reconstruction
when primary fixation is not possible. In this article, the surgical
techniques and clinical outcomes of articular reconstructions in
the hand and wrist using non-vascularised osteochondral autografts
are reviewed.
We reviewed 212 consecutive patients with adolescent
idiopathic scoliosis who underwent posterior spinal arthrodesis
using all pedicle screw instrumentation in terms of clinical, radiological
and Scoliosis Research Society (SRS)-22 outcomes. In Group 1 (51
patients), the correction was performed over two rods using bilateral
segmental pedicle screws. In Group 2 (161 patients), the correction
was performed over one rod using unilateral segmental pedicle screws
with the second rod providing stability of the construct
through two-level screw fixation at proximal and distal ends. The
mean age at surgery was
14.8 years in both groups. Comparison between groups showed no significant
differences with regard to age and Risser grade at surgery, pre-
and post-operative scoliosis angle, coronal Cobb correction, length
of hospital stay and SRS scores. Correction of upper thoracic curves
was significantly better in Group 1 (p = 0.02). Increased surgical time
and intra-operative blood loss was recorded in Group 1 (p <
0.001
and p = 0.04, respectively). The implant cost was reduced by mean
35% in Group 2 due to the lesser number of pedicle screws. Unilateral and bilateral pedicle screw techniques have both achieved
excellent deformity correction in adolescent patients with idiopathic
scoliosis, which was maintained at two-year follow-up. This has
been associated with high patient satisfaction and low complication
rates.
Some surgeons are reluctant to perform a reverse
total shoulder arthroplasty (RTSA) on both shoulders because of concerns
regarding difficulty with activities of daily living post-operatively
as a result of limited rotation of the shoulders. Nevertheless,
we hypothesised that outcomes and patient satisfaction following
bilateral RTSA would be comparable to those following unilateral
RTSA. A single-surgeon RTSA registry was reviewed for patients who underwent
bilateral staged RTSA with a minimum follow-up of two years. A unilateral
RTSA matched control was selected for each shoulder in those patients
undergoing bilateral procedures. The Constant–Murley score (CMS), American
Shoulder and Elbow Surgeons (ASES) score, Subjective Shoulder Values
(SSV), visual analogue scale (VAS) for pain, range of movement and
strength were measured pre- and post-operatively. The mean CMS,
ASES, SSV, VAS scores, strength and active forward elevation were
significantly improved
(all p <
0.01) following each operation in those undergoing bilateral
procedures. The mean active external rotation (p = 0.63 and p =
0.19) and internal rotation (p = 0.77 and p = 0.24) were not significantly
improved. The improvement in the mean ASES score after the first
RTSA was greater than the improvement in its control group (p =
0.0039). The improvement in the mean CMS, ASES scores and active
forward elevation was significantly less after the second RTSA than
in its control group (p = 0.0244, p = 0.0183, and p = 0.0280, respectively).
Pain relief and function significantly improved after each RTSA
in those undergoing a bilateral procedure. Bilateral RTSA is thus a reasonable form of treatment for patients
with severe bilateral rotator cuff deficiency, although inferior
results may be seen after the second procedure compared with the
first. Cite this article:
In order to achieve satisfactory reduction of
complex distal humeral fractures, adequate exposure of the fracture fragments
and the joint surface is required. Several surgical exposures have
been described for distal humeral fractures. We report our experience
using the anconeus pedicle olecranon flip osteotomy approach. This
involves detachment of the triceps along with a sliver of olecranon,
which retains the anconeus pedicle. We report the use of this approach
in ten patients (six male, four female) with a mean age of 38.4
years (28 to 51). The mean follow-up was 15 months (12 to 18) with
no loss to follow-up. Elbow function was graded using the Mayo Score.
The results were excellent in four patients, good in five and fair
in one patient. The mean time to both fracture and osteotomy union
was 10.6 weeks (8 to 12) and 7.1 weeks (6 to 8), respectively. We
found this approach gave reliably good exposure for these difficult
fractures enabling anatomical reduction and bicondylar plating without
complications. Cite this article:
Richard Carey Smith is an orthopaedic oncology surgeon with fellowship training in the UK, USA, Australia and Canada, and has worked in Zambia, Zimbabwe and Papa New Guinea. David Wood is head of the University Department of Orthopaedics in Perth, Western Australia. He did his masters in Africa, and first experienced Papa New Guinea on his medical elective, starting a lifelong commitment to medical aid work there.
The August 2014 Spine Roundup360 looks at: rhBMP complicates cervical spine surgery; posterior longitudinal ligament revisited; thoracolumbar posterior instrumentation without fusion in burst fractures; risk modelling for VTE events in spinal surgery; the consequences of dural tears in microdiscectomy; trends in revision spinal surgery; radiofrequency denervation likely effective in facet joint pain and hooks optimally biomechanically transition posterior instrumentation.
The August 2014 Children’s orthopaedics Roundup360 looks at: Conservative treatment still OK in paediatric clavicular fractures; Femoral anteversion not the usual suspect in patellar inversion; Shoulder dislocation best treated with an operation; Perthes’ disease results in poorer quality of adult life; Physiotherapy little benefit in supracondylar fractures; Congenital vertical talus addressed at the midtarsal joint; Single-sitting DDH surgery worth the effort; and cubitus valgus associated with simple elbow dislocation
The August 2014 Wrist &
Hand Roundup360 looks at: Trapeziectomy superior to arthrodesis;
Giant cell tumour is the most common aggressive
benign tumour of the musculoskeletal system and has a high rate of
local recurrence. When it occurs in proximity to the hip, reconstruction
of the joint is a challenge. Options for reconstruction after wide
resection include the use of a megaprosthesis or an allograft-prosthesis
composite. We performed a clinical and radiological study to evaluate
the functional results of a proximal femoral allograft-prosthesis
composite in the treatment of proximal femoral giant cell tumour
after wide resection. This was an observational study, between 2006
and 2012, of 18 patients with a mean age of 32 years (28 to 42)
and a mean follow-up of 54 months (18 to 79). We achieved excellent
outcomes using Harris Hip Score in 13 patients and a good outcome
in five. All allografts united. There were no complications such
as infection, failure, fracture or resorption of the graft, or recurrent
tumour. Resection and reconstruction of giant cell tumours with
proximal femoral allograft–prosthesis composite is a better option
than using a prosthesis considering preservation of bone stock and excellent
restoration of function. A good result requires demanding bone banking techniques, effective
measures to prevent infection and stability at the allograft-host
junction. Cite this article:
We compared the incidence and severity of complications during and after closing- and opening-wedge high tibial osteotomy used for the treatment of varus arthritis of the knee, and identified the risk factors associated with the development of complications. In total, 104 patients underwent laterally based closing-wedge and 90 medial opening-wedge high tibial osteotomy between January 1993 and December 2006. The characteristics of each group were similar. All the patients were followed up for more than 12 months. We assessed the outcome using the Hospital for Special Surgery knee score, and recorded the complications. Age, gender, obesity (body mass index >
27.5 kg/m2), the type of osteotomy (closing The mean Hospital for Special Surgery score in the closing and opening groups improved from 73.4 (54 to 86) to 91.8 (81 to 100) and from 73.8 (56 to 88) to 93 (84 to 100), respectively. The incidence of complications overall and of major complications in both groups was not significantly different (p = 0.20 overall complication, p = 0.29 major complication). Logistic regression analysis adjusting for obesity and the pre-operative mechanical axis showed that obesity remained a significant independent risk factor (odds ratio = 3.23) of a major complication after high tibial osteotomy. Our results suggest that the opening-wedge high tibial osteotomy can be an alternative treatment option for young patients with medial compartment osteoarthritis and varus deformity.
Structural allografts may be used to manage uncontained
bone defects in revision total knee replacement (TKR). However,
the availability of cadaver grafts is limited in some areas of Asia.
The aim of this study was to evaluate the mid-term outcome of the
use of femoral head allografts for the reconstruction of uncontained
defects in revision TKR, focusing on complications related to the
graft. We retrospectively reviewed 28 patients (30 TKRs) with Anderson
Orthopaedic Research Institute (AORI) type 3 bone defects, who underwent
revision using femoral head allografts and stemmed components. The
mean number of femoral heads used was 1.7 (1 to 3). The allograft–host
junctions were packed with cancellous autograft. At a mean follow-up of 76 months (38 to 136) the mean American
Knee Society knee score improved from 37.2 (17 to 60) pre-operatively
to 90 (83 to 100) (p <
0.001). The mean function score improved
from 26.5 (0 to 50) pre-operatively to 81 (60 to 100) (p <
0.001).
All the grafts healed to the host bone. The mean time to healing
of the graft was 6.6 months
(4 to 16). There have been no complications of collapse of the graft,
nonunion, infection or implant loosening. No revision surgery was
required. The use of femoral head allografts in conjunction with a stemmed
component and autogenous bone graft in revision TKR in patients
with uncontained bone defects resulted in a high rate of healing
of the graft with minimal complications and a satisfactory outcome.
Longer follow-up is needed to observe the evolution of the graft. Cite this article:
The ideal form of fixation for displaced, extra-articular
fractures of the distal tibia remains controversial. In the UK, open
reduction and internal fixation with locking-plates and intramedullary
nailing are the two most common forms of treatment. Both techniques
provide reliable fixation but both are associated with specific
complications. There is little information regarding the functional
recovery following either procedure. We performed a randomised pilot trial to determine the functional
outcome of 24 adult patients treated with either a locking-plate
(n = 12) or an intramedullary nailing (n = 12). At six months, there
was an adjusted difference of 13 points in the Disability Rating
Index in favour of the intramedullary nail. However, this was not
statistically significant in this pilot trial (p = 0.498). A total
of seven patients required further surgery in the locking-plate
group and one in the intramedullary nail group. This study suggests that there may be clinically relevant, functional
differences in patients treated with nail
This review of the literature presents the current understanding of Scheuermann’s kyphosis and investigates the controversies concerning conservative and surgical treatment. There is considerable debate regarding the pathogenesis, natural history and treatment of this condition. A benign prognosis with settling of symptoms and stabilisation of the deformity at skeletal maturity is expected in most patients. Observation and programmes of exercise are appropriate for mild, flexible, non-progressive deformities. Bracing is indicated for a moderate deformity which spans several levels and retains flexibility in motivated patients who have significant remaining spinal growth. The loss of some correction after the completion of bracing with recurrent anterior vertebral wedging has been reported in approximately one-third of patients. Surgical correction with instrumented spinal fusion is indicated for a severe kyphosis which carries a risk of progression beyond the end of growth causing cosmetic deformity, back pain and neurological complications. There is no consensus on the effectiveness of different techniques and types of instrumentation. Techniques include posterior-only and combined anteroposterior spinal fusion with or without posterior osteotomies across the apex of the deformity. Current instrumented techniques include hybrid and all-pedicle screw constructs.
The June 2014 Oncology Roundup360 looks at: Infection still a problem in endoprosthetic reconstruction; massive allografts not as successful as we perhaps think; curopsy for aneurysmal bone cysts?; lengthening prosthesis: days are numbered; new WHO classification in brief; proximal tumours and fluid levels: bad news; infection is predictable in orthopaedic oncology; psychosocial support key in oncological outcomes.
We describe a retrospective review of 38 cases of reconstruction following resection of the metaphysiodiaphysis of the lower limb for malignant bone tumours using free vascularised fibular grafts. The mean follow-up was for 7.6 years (0.4 to 18.4). The mean Musculoskeletal Tumor Society score was 27.2 (20 to 30). The score was significantly higher when the graft was carried out in a one-stage procedure after resection of the tumour rather than in two stages. Bony union was achieved in 89% of the cases. The overall mean time to union was 1.7 years (0.2 to 10.3). Free vascularised fibular transfer is a major operation with frequent, but preventable, complications which allows salvage of the limb with satisfactory functional results.
Heterotopic ossification occurring after the use of commercially available bone morphogenetic proteins has not been widely reported. We describe four cases of heterotopic ossification in patients treated with either recombinant bone morphogenetic protein 2 or recombinant bone morphogenetic protein 7. We found that while some patients were asymptomatic, heterotopic ossification which had occurred around a joint often required operative excision with good results.