Intracapsular neck of femur fractures secondary to civilian gunshot injuries: an inter- and intra-observer agreement study on classification and treatment using the AO/OTA classification.

PURPOSE: Numerous classification systems have been developed for neck of femur fractures, but none have been tested for reliability in gunshot injuries. Our primary objective was to assess the inter-observer and intra-observer reliability of the AO/OTA classification system when applied to intracapsular neck of femur fractures secondary to low-velocity civilian gunshots wounds (GSWs). Our secondary objective was to test the reliability of the AO/OTA classification system in guiding surgeon treatment choices for these fractures. PATIENTS AND METHODS: Eighteen reviewers (six orthopaedic traumatologists, six general orthopaedic surgeons and six junior orthopaedic fellows) were given a set of 25 plain radiographs and CT scans of femur neck fractures secondary to GSW. For each clinical case, all reviewers selected a classification as well as treatment option from a list of given options. Inter-observer reliability was measured at the initial classification. The exercise was repeated 10-12 weeks later by the same 18 reviewers to test intra-observer reliability. RESULTS: The Fleiss kappa values indicate only slight agreement amongst raters, across all experience levels, for both injury classification and treatment. Intra-observer agreement was fair across all experience levels for both injury classification and treatment. CONCLUSION: The AO/OTA classification showed only slight reliability in classification of gunshot fractures of the femur neck. With only fair reliability, it also failed to guide surgical treatment thus rendering its routine use in daily clinical practice of questionable value.

Moment arms of the coracobrachialis and short head of biceps following a Latarjet procedure: a modeling study.

BACKGROUND: The Latarjet procedure transfers the coracoid process to the anterior glenoid. This prevents recurrent anterior humeral dislocation but alters the origins of the coracobrachialis (CBR) and short head of the biceps (SHB). The impact of this alteration on the moment arms of these muscles has not been examined. METHODS: The Newcastle Shoulder Model was updated with 15 healthy cadaveric bone models to create customized shoulder models. The CBR and SHB muscles were attached to the anterior glenoid via an elliptical wrapping object. Muscle moment arms were calculated for abduction, forward flexion, scapular plane elevation, and internal rotation with 20° and 90° of abduction. Statistical comparison of moment arms between native and Latarjet shoulders was performed using spm1D. RESULTS: By transferring the origins of the CBR and SHB to the anterior glenoid, both muscles had extension moment arms during glenohumeral elevation in the coronal, sagittal, and scapular planes. Their average moment arms during abduction (-30.4 ± 3.2 mm for CBR and -29.8 ± 3.0 mm for SHB) and forward flexion (-26.0 ± 3.1 mm for CBR and -26.2 ± 3.2 mm for SHB) suggested that their role after the Latarjet procedure changed compared with their role in the native shoulder (P < .001). At higher abduction levels, both the muscles had higher internal rotation moment arms compared with the native shoulder. CONCLUSION: The Latarjet procedure affected the moment arms of the CBR and SHB. Both muscles had increased extension and internal rotation moment arms at higher degrees of elevation compared with the native shoulders. This finding suggests that these muscles act as dynamic stabilizers after the Latarjet procedure.

Surgical management of distal humerus gunshot fractures: descriptive case series.

PURPOSE: The purpose of this study was to report our 5 years surgical experience and the rate of neurovascular injury following gunshot fractures of the distal humerus in a in level-1 Trauma Centre in South Africa. METHODS: A retrospective case series of 25 consecutive adult gunshot injuries to the distal humerus. Demographic and injury data were extracted from clinical case notes and electronic operative records. Imaging archives were used to classify fractures according to the AO/OTA classification. RESULTS: Twenty-five male patients, with mean age of 32-years-old, sustained gunshot injuries to the distal humerus. Eleven patients had multiple gunshots. Forty-four percent of patients underwent Computed Tomography Angiography (CTA), 20% had confirmed brachial artery injury. Limbs with vascular injury were salvaged with arterial repair and external fixation. Fractures were extra-articular in 20 cases (80%). Nineteen fractures were classified as highly comminuted. Nerve injuries occurred in 52% and were all managed expectantly. Only 32% of patients attended follow-up beyond 3 months. CONCLUSIONS: These are rare challenging injuries with high rates of neurovascular damage. This demographic of patients is poorly compliant with follow up highlighting the need for high-quality early care. Brachial artery injury should be excluded with CTA and can be managed with arterial repair and external fixation. All fractures in this series were surgically managed with conventional anatomical plate and screw fixation techniques. For nerve injury, we advocate expectant management. LEVEL OF EVIDENCE: IV.

Primary hip and knee arthroplasty at district level is safe and may reduce the burden on tertiary care in a low-income setting.

BACKGROUND: Arthroplasty procedures in low-income countries are mostly performed at tertiary centers, with waiting lists exceeding 12 to 24 months. Recently, this is further exacerbated by the impact of the Covid Pandemic on elective surgeries. Providing arthroplasty services at other levels of healthcare aims to offset this burden, however there is a marked paucity of literature regarding surgical outcomes. This study aims to provide evidence on the safety of arthroplasty at district level. METHODS: Retrospective review of consecutive hip and knee primary arthroplasty cases performed at a District Hospital (DH), and a Tertiary Academic Hospital (TH) in Cape Town, South Africa between 1st January 2015 and 31st December 2018. Patient demographics, hospital length of stay, surgery related readmissions, reoperations, post-operative complications, and mortality rates were compared between cohorts. RESULTS: Seven hundred and ninety-five primary arthroplasty surgeries were performed at TH level and 228 at DH level. The average hospital stay was 5.2 ± 2.0 days at DH level and 7.6 ± 7.1 days for TH (p < 0.05). Readmissions within 3 months post-surgery of 1.75% (4 patients) for district and 4.40% (35) for tertiary level (p < 0.05). Reoperation rate of 1 in every 100 patients at the DH and 8.3 in every 100 patients at the TH (p < 0.05). Death rate was 0.4% vs 0.6% at district and tertiary hospitals respectively (p > 0.05). Periprosthetic joint infection (PJI) rate was 0.43% at DH and 2.26% at TH. The percentage of hip dislocation requiring revision was 0% at district and 0.37% at tertiary level. During the study period, 228 patients received their arthroplasty surgery at the DH; these patients would otherwise have remained on the TH waiting list. CONCLUSIONS: Hip and Knee Arthroplasty at District health care level is safe and; for the reason that the DH feeds into the TH; providing arthroplasty at district level may help ease the pressure on arthroplasty services at tertiary care facilities in a Southern African context. Adequately trained surgeons should be encouraged to perform these procedures in district hospitals provided there is appropriate patient selection and adherence to strict theatre operating procedures. LEVEL OF EVIDENCE: Level III Retrospective cohort study.

Identification of recurring scapular fracture patterns using 3-dimensional computerized fracture mapping.

BACKGROUND: Scapular fracture fixation and implant selection are guided by the fracture pattern and classification, which requires accurate understanding and interpretation of the fracture lines. Three-dimensional (3D) computed tomography (CT)-based fracture pattern analysis enhances a more accurate understanding of the scapular fracture patterns. The purpose of this study was to create scapular fracture maps and identify the frequent fracture patterns using 3D reconstructed CT images. METHOD: Seventy patients treated for scapular fractures, in a single hospital, were considered for this study. Their CT images were reconstructed into 3D models and the fracture fragments were virtually reduced. The reduced 3D models were first aligned on a 3D template and 2D images were captured on the anterior, posterior, and lateral views. Then each fracture image was aligned on a corresponding 2D template and the fracture lines were transferred to the template. The 3 separate views were used to accurately capture the propagation and exit of the fractures through the scapular anatomy. These fracture lines were compiled and heat maps were generated to identify the frequent fracture zones of the scapula. RESULT: The observed scapular fractures propagated through multiple regions of the bone. Overall, the 3 most common exit zones in the scapula were the lateral (69%), medial (67%), and superior borders (60%). More specifically, the superior lateral border, medial base of the scapula spine, spinoglenoid notch, and mid-superior border were the most frequent zones of fracture in the scapular body. Simple intra-articular fractures (transverse or oblique type) were the most common (92%) fracture type in the glenoid region. CONCLUSION: Scapular fractures reveal repeatable patterns. The zones of recurrent fracture patterns can be identified from fracture and heat maps. Graphical plots of fracture and heat maps may assist surgical planning and implant design optimization.

Quality of recovery after total hip and knee arthroplasty in South Africa: a national prospective observational cohort study.

BACKGROUND: Encouraged by the widespread adoption of enhanced recovery protocols (ERPs) for elective total hip and knee arthroplasty (THA/TKA) in high-income countries, our nationwide multidisciplinary research group first performed a Delphi study to establish the framework for a unified ERP for THA/TKA in South Africa. The objectives of this second phase of changing practice were to document quality of patient recovery, record patient characteristics and audit standard perioperative practice. METHODS: From May to December 2018, nine South African public hospitals conducted a 10-week prospective observational study of patients undergoing THA/TKA. The primary outcome was 'days alive and at home up to 30 days after surgery' (DAH30) as a patient-centred measure of quality of recovery incorporating early death, hospital length of stay (LOS), discharge destination and readmission during the first 30 days after surgery. Preoperative patient characteristics and perioperative care were documented to audit practice. RESULTS: Twenty-one (10.1%) out of 207 enrolled patients had their surgery cancelled or postponed resulting in 186 study patients. No fatalities were recorded, median LOS was 4 (inter-quartile-range (IQR), 3-5) days and 30-day readmission rate was 3.8%, leading to a median DAH30 of 26 (25-27) days. Forty patients (21.5%) had pre-existing anaemia and 24 (12.9%) were morbidly obese. In the preoperative period, standard care involved assessment in an optimisation clinic, multidisciplinary education and full-body antiseptic wash for 67 (36.2%), 74 (40.0%) and 55 (30.1%) patients, respectively. On the first postoperative day, out-of-bed mobilisation was achieved by 69 (38.1%) patients while multimodal analgesic regimens (paracetamol and Non-Steroid-Anti-Inflammatory-Drugs) were administered to 29 patients (16.0%). CONCLUSION: Quality of recovery measured by a median DAH30 of 26 days justifies performance of THA/TKA in South African public hospitals. That said, perioperative practice, including optimisation of modifiable risk factors, lacked standardisation suggesting that quality of patient care and postoperative recovery may improve with implementation of ERP principles. Notwithstanding the limited resources available, we anticipate that a change of practice for THA/TKA is feasible if 'buy-in' from the involved multidisciplinary units is obtained in the next phase of our nationwide ERP initiative. TRIAL REGISTRATION: The study was registered with ClinicalTrials.gov ( NCT03540667 ).

Pre-operative planning for reverse shoulder arthroplasty in low-resource centres: A modified Delphi study in South Africa.

BACKGROUND: Pre-operative planning for reverse shoulder arthroplasty (RSA) poses challenges, particularly when dealing with glenoid bone loss. This modified Delphi study aimed to assess expert consensus on RSA planning processes and rationale, specifically targeting low-resourced institutions. Our objective was to offer pre-operative decision-making algorithms tailored for surgeons practising in resource-constrained hospitals with limited access to computed tomography (CT) scans. METHODS: A working group generated statements on pre-operative imaging and glenoid of glenoid morphology and intra-operative decision-making. The study was conducted in three stages, with virtual consensus meetings in between. Stages 2 and 3 consisted only of closed questions/statements. The statements with over 70% were considered consensus achieved and those with less than 10% were considered disagreement consensus achieved. RESULTS: Twelve shoulder surgeons participated, with 67% having over five years of experience in shoulder arthroplasty. In the absence of glenoid bone loss, the sole use of plain radiographs for pre-operative planning reached consensus and is recommended by these groups, while 100% advise using CT scans when bone loss is present. Most surgeons (70%) recommend using patient-specific instrumentation (PSI) in cases of structural bone loss. Most of the statements on intra-operative decision-making related to component placement and enhancing stability failed to reach consensus. CONCLUSION: While consensus was achieved on most aspects of pre-operative imaging and planning, technical aspects of surgery lacked consensus. Planning for patients with structural glenoid bone loss necessitates CT scans and planning tools.

First-time traumatic anterior shoulder dislocation: Approach for the primary health care physician.

Traumatic anterior shoulder dislocation is a very common injury encountered in emergency rooms as well as in the primary health care physician's office. This injury occurs either in the setting of competitive or recreational sports injuries or as a high-energy injury during a fall or a road traffic accident. Common complications such as a recurrent dislocation can be predicted, monitored and prevented. Early appropriate treatment of associated cuff tears or fractures is associated with improved outcomes. There is a plethora of literature on the assessment and management of the primary anterior shoulder dislocation in specialised fields such as sports medicine, orthopaedic surgery and shoulder surgery. These studies are often highly technical, addressed to a particular subset of readers and often deal with one aspect of the management of the injury. This narrative aims to provide the reader with a simplified, evidence-based assessment and management approach for the first-time acute anterior shoulder dislocation. Emphasis is on closed reduction techniques, position and duration of immobilisation, and return to activities of life or sports. Risk factors for recurrence and other indications for primary referral to the orthopaedic surgeon are discussed. Other forms of shoulder instability such as posterior shoulder dislocation, inferior dislocation and multidirectional instability will not be the focus of this narrative.

Conservative Management of Stable, Minimally Displaced Pertrochanteric Fractures: A Case Series.

Background: Hip fractures are common, and account for significant morbidity and mortality. While surgical intervention remains the gold standard, nonoperative treatment protocols are seldom analysed and may be of value in select settings. Objectives: We sought to review our conservatively treated pertrochanteric fractures and present a case series that outlined indications, treatment protocol and early outcomes. Materials and Methods: A retrospective review of medical records and radiographic imaging of all patients who presented with stable pertrochanteric fractures and were treated nonoperatively, from September 2017 to February 2021, at a Level 2 District Hospital in South Africa. Results: Of the 242 patients who were admitted with pertrochanteric fractures, 12 (4.9%) fractures were radiographically classified as AO 31A1.2 (stable, minimally displaced) and eligible for active nonoperative management. Within 6 weeks of injury, 10 (84%) of the patients who received active nonoperative treatment achieved union. Two patients (16%) failed the treatment protocol and required surgery, with one failing during the hospital phase of the treatment protocol and the other on follow up. In the group of united fractures, the neck shaft angle was on average within 3 degrees of the contralateral hip with a range of 0 to 5 degrees. At follow-up, two (16%) patients had a measurable shortening of 5 mm at union. There was no medical morbidity associated with this protocol. Conclusions: In our case series, the active nonoperative management protocol, involving early mobilisation and serial radiographs, in select cases of stable pertrochanteric fractures yielded acceptable outcomes. This is of relevance in low-middle income countries with limited surgical capacity.

Assessment and management of shoulder pain at primary care level.

Most patients with shoulder pain will initially visit their community health centre, private general practitioner or family physician, with various levels of experience in the assessment and management of shoulder conditions. Shoulder conditions will range from early, simple ailments that can be treated in the primary care setting, to post-traumatic injuries and complex pathologies requiring the expertise of an orthopaedic surgeon or a fellowship-trained shoulder surgeon. Correct assessment of the patient's shoulder condition at the index consultation is a prerequisite for appropriate management. This article sets out straightforward guidelines to help general practitioners confidently identify the patient's source of shoulder pain and initiate an appropriate management plan at primary care level. Criteria for urgent and elective referral for specialist care are also outlined.

Gunshot injuries to the lower extremities: Issues, controversies and algorithm of management.

Civilian gunshot violence is common and concentrated in specific geographic regions of the world, consuming a significant proportion of trauma practice in those particular regions. Unfortunately, the state of clinical evidence is scarce, and it is fair to emphasize that the field is scientifically under-represented. In the current review, the authors point out key aspects and principles requiring attention when treating low energy gunshot wounds to the lower extremity. These treatment principles include the following management concepts: 1) Conservative management of soft tissue injuries if the projectile causes no discomfort. 2) Conservative management of non-complete fractures of the tibia or femoral shaft. 3) Prophylactic fixation of non-complete peri-trochanteric fractures. 4) Fixation of allcomplete fractures. 5) Removal of all intra-articular projectiles. 6) Treating as septic arthritis if the missile passes through large bowel (not small bowel) prior to penetrating a joint capsule. The proposed concepts are based on available evidence from the literature and expert opinion. The authors also highlight challenges with conducting clinical studies in the field, given the high rate of 'loss to follow-up' and compliance issues in this particular group of patients.

WhatsApp Mobile Health Platform to Support Fracture Management by Non-Specialists in South Africa.

BACKGROUND: Traumatic fractures are common in sub-Saharan Africa, a region with a shortfall of orthopaedic surgeons, and can result in morbidity if not appropriately managed. WhatsApp is an encrypted smartphone application and ubiquitous in sub-Saharan Africa. The objective of this study was to assess the use of WhatsApp as a mobile health platform to support fracture management by non-orthopaedic doctors in Cape Town, South Africa. STUDY DESIGN: A WhatsApp orthopaedic referral group was created between non-orthopaedic doctors from community health clinics and the orthopaedic team from a first-level hospital to manage traumatic fractures. Non-orthopaedic doctors posted cases on the orthopaedic referral group and the orthopaedic team provided advice. Traumatic fracture data from January 1 to June 30, 2018 were analyzed and outcomes included response time, management advice, and treatment by facility level. RESULTS: Seventy-two non-orthopaedic doctors posted 731 cases of traumatic fractures to the 5-member orthopaedic team. Six hundred and sixty-one (90%) cases were responded to within 1 hour. Three hundred and fifty-four (48%) patients were treated successfully by non-orthopaedic doctors at community health clinics, 288 (39%) were treated by the orthopaedic team at the first-level hospital, and 89 (12%) were referred directly to an orthopaedic subspecialist at a third-level hospital. CONCLUSIONS: The WhatsApp orthopaedic referral group provided a free telementoring platform for non-orthopaedic doctors to successfully manage traumatic fracture cases at community health clinics. This type of mobile health platform can be applicable to other resource-limited settings if disease burden is high and specialists are scarce.