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Int Orthop 2019 Feb 15. Epub 2019 Feb 15.

History of Medicine, Anatomy Department, School of Medicine, Democritus University of Thrace, Alexandroupolis, Greece.

During the fifth century BC in ancient Greece during the eve of orthopaedics, the Hippocratic School of Medicine diagnosed a series of congenital limb deformities. Congenital dislocation of the arm, elbow, wrist, hip, knee, tarsotibial joint, apex leg, as well as talipes valgus (clubfoot), congenital clavicle fractures, and thumb malfunction were all discussed by Hippocrates and his followers. Ancient Greek medico-philosophers, fond of a "perfect" human body, proposed an immediate non-interventional approach, while archaic orthotics and specialized footwear were suggested. Read More

Knee Surg Sports Traumatol Arthrosc 2019 Feb 14. Epub 2019 Feb 14.

Sporthopaedicum, Straubing and Regensburg, Bahnhofplatz, 27, 94315, Straubing, Germany.

Purpose: Most elbow dislocations can be treated conservatively, with surgery indicated in special circumstances. Surgical options, apart from fracture fixation, range from repair or reconstruction of the damaged ligaments to static external fixation, usually entailing either a long period of immobilization followed by carefully monitored initiation of movement or dynamic external fixation. In general, no consensus regarding surgical treatment has been reached. Read More

Int J Surg Case Rep 2019 Jan 31;55:183-186. Epub 2019 Jan 31.

Mayapada Hospital, Jakarta, Indonesia.

Introduction: Recurrent patellar dislocation can lead to articular cartilage injury. We report a 21-year old male with left patella instability and articular cartilage defect.

Presentation Of Case: A 21-year-old male presented with left patellar instability and pain. Read More

Chirurg 2019 Feb 11. Epub 2019 Feb 11.

Klinik und Poliklinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Deutschland.

With 1% of all skeletal fractures patellar fractures are rare. The majority of cases are caused by a direct trauma to the flexed knee. The diagnosis is made via the injury mechanism as well as the physical and radiological findings. Read More

J Orthop Case Rep 2018 Sep-Oct;8(5):82-85

Department of Orthopaedic, Henry Ford Hospital, 2799 W. Grand Blvd, Detroit, MI 48202, United States.

Introduction: Dislocations of the proximal tibiofibular joint (PTFJ) are a relatively rare orthopedic injury. They are often repaired with open reduction internal fixation utilizing a transfixation screw. Limited data are available concerning alternative repair methods. Read More

SAGE Open Med Case Rep 2019 11;7:2050313X18823102. Epub 2019 Jan 11.

Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan.

Knee dislocation with concomitant multiligament injury is a rare and devastating injury. We report the successful repair of a rare case of open knee dislocation with concomitant multiligament injury and patellar tendon rupture of an 18-year-old male due to a motorcycle accident. The patient presented with an open wound running parallel to the knee joint line and patellar tendon rupture with full exposure of the cartilage of the distal femur. Read More

Injury 2019 Jan 17. Epub 2019 Jan 17.

Department of Trauma Surgery, University Medical Center Regensburg, Regensburg, Germany.

Introduction: Patellar dislocation and rupture of the medial patellofemoral ligament (MPFL) are frequently seen in daily orthopedic practice. Besides initial non-surgical treatment, surgery and subsequent rehabilitation are crucial for restoring stability in the femoropatellar joint. This study investigated current rehabilitation strategies after patellar dislocation because knowledge on this topic has been severely limited so far. Read More

Arthroscopy 2019 Jan 29. Epub 2019 Jan 29.

Department of Orthopaedics, General Hospital of the People's Liberation Army, Beijing, People's Republic of China.

Purpose: To compare the stability and clinical outcomes of 2 medial patellofemoral ligament reconstruction (MPFLR) techniques for the treatment of recurrent lateral patellar dislocation in adults.

Methods: Ninety-one patients with recurrent patellar dislocation were randomly divided into 2 groups, undergoing either the traditional single-bundle transpatellar tunnel technique (group A) or the double-anchor anatomic reconstruction technique (group B). Preoperatively and at follow-up, the patellar position and rotation were evaluated by computed tomography with the congruence angle, lateral patellar angle, patellar tilt angle, and lateral patellar translation; the subjective symptoms and functional outcomes were evaluated with Kujala, Lysholm, Tegner, and International Knee Documentation Committee subjective scores. Read More

BMJ Case Rep 2019 Jan 29;12(1). Epub 2019 Jan 29.

Alrijne Ziekenhuis Locatie Leiderdorp, Leiderdorp, The Netherlands.

A 37-year-old woman was diagnosed with an isolated proximal tibiofibular joint dislocation (PTJD) after an accident during gymnastic exercise. The dislocation has a low incidence rate and is often missed in the emergency department as physical and radiology signs are subtle. Treatment consists of closed or open reduction and immobilisation. Read More

J Pediatr Orthop 2019 Jan 25. Epub 2019 Jan 25.

Department of Orthopedic Surgery, Hospital for Special Surgery, New York, NY.

Introduction: The treatment of a first-time traumatic patella dislocation in children and adolescents remains controversial. Preference-based health utility assessments can provide health-related quality of life information for orthopaedic conditions and their subsequent treatment. The purpose of this study was to determine utilities for pediatric acute traumatic patella dislocation and subsequent treatment health states from both children with patellar dislocation, and their parents. Read More

JBJS Case Connect 2019 Jan 23. Epub 2019 Jan 23.

University of Kansas Medical Center, Kansas City, Kansas.

Case: We describe the clinical course and treatment of a patient who sustained simultaneous bilateral knee dislocation under low-velocity atraumatic conditions, and provide a review of the literature. Dislocations of the native knee joint are uncommon orthopaedic injuries but they are true emergencies because of the concern for concomitant neurovascular injury; therefore, they may be limb-threatening injuries.

Conclusion: To our knowledge, there are few reports of simultaneous bilateral knee dislocation and no reports of this occurring during weight training. Read More

Int Orthop 2019 Jan 23. Epub 2019 Jan 23.

Service d'Orthopédie-Traumatologie, Hôpital Gabriel Montpied, CHU de Clermont Ferrand BP 69, 63003, Clermont Ferrand Cedex 01, France.

Introduction: Tibiofemoral dislocation is the most serious form of instability following total knee arthroplasty (TKA). It is little reported in the literature, despite severity comparable to that in the native knee. The present systematic review and meta-analysis aimed to identify risk factors and treatment strategies. Read More

J Am Acad Orthop Surg Glob Res Rev 2018 Nov 2;2(11):e073. Epub 2018 Nov 2.

Department of Orthopaedic Surgery, Cleveland Clinic-South Pointe, Warrensville Heights, OH (Dr. Kolosky); the Department of Orthopaedic Surgery (Dr. Spindler), Cleveland Clinic; and the Cleveland Clinic Sports Health (Dr. Spindler), Cleveland Clinic, Cleveland, OH.

Traumatic knee dislocations are thought to be relatively uncommon; however, they are a devastating injury that can be life altering. A concomitant vascular injury carries a particularly high morbidity rate, with some studies reporting as many as one in five patients losing a limb. Neurologic injury can pose problems as well, in particular for athlete populations that have structure and function as integral parts of their activities. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019 Jan;33(1):13-17

Department of Orthopaedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou Fujian, 350005, P.R.China.

Objective: To analyse the effectiveness of unicompartmental knee arthroplasty (UKA) for the patients with spontaneous osteonecrosis of the knee (SONK).

Methods: Between January 2012 and December 2016, 31 patients with SONK was admitted and treated with medial UKA. All patients were examined by both plain radiography and magnetic resonance images. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019 Jan;33(1):8-12

Department of Adult Joint Reconstructive Surgery【？】, Yangpu Hospital, Shanghai Tongji University, Shanghai, 200090, P.R.China.

Objective: To explore the imaging features of intramedullary guide rod and its influence on the alignment of the femoral prosthesis in unicompartmental knee arthroplasty (UKA).

Methods: Between August 2016 and November 2016, 50 patients (50 knees) with primary anteromedial osteoarthritis were treated with UKA by Oxford MicroPlasty minimally invasive replacement system. There were 10 males and 40 females. Read More

Trop Doct 2019 Jan 12:49475518822239. Epub 2019 Jan 12.

5 Consultant Surgeon and Professor, Department of Trauma and Orthopaedics, Countess of Chester Hospital, Chester, UK.

Outcomes of arthroplasty in sub-Saharan Africa are not widely reported. To our knowledge, this systematic review is the first to explore this topic. Scopus, EMBASE, Medline and PubMed databases were searched, utilising MeSH headings and Boolean search strategies. Read More

Knee 2019 Jan 8. Epub 2019 Jan 8.

Grupo de Joelho, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.

Background: To report the functional outcomes and complications from reconstructing the knee posterolateral complex (PLC), associated with one-stage opening-wedge tibial valgus osteotomy, and discuss the technical feasibility of this procedure.

Methods: Five patients with chronic PLC injuries and varus deviation of the mechanical axis, associated with central pivot injuries or not, underwent medial opening-wedge high tibial osteotomy combined with PLC reconstruction. The lateral collateral ligament, popliteal tendon, and popliteofibular ligament were reconstructed using a single femoral tunnel. Read More

Knee Surg Sports Traumatol Arthrosc 2019 Jan 11. Epub 2019 Jan 11.

Clinic of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.

Purpose: The literature shows no consensus regarding the best method and timing for the treatment of acute knee dislocations. Studies indicate that a one-stage procedure performed in the early stages of injury can lead to superior results. The aim of this study was to evaluate the results after performing early surgical repair with additional suture augmentation (ligament bracing) of all torn ligaments in acute knee dislocations. Read More

Radiol Case Rep 2019 Mar 5;14(3):405-409. Epub 2019 Jan 5.

Department of Radiology, Mater Misericordiae University Hospital, Dublin 7, Dublin, Ireland.

The mobile bearing Oxford Unicompartmental Knee Prosthesis (OUKP) is the most commonly used treatment of osteoarthritis confined to 1 compartment of the knee. Dislocation of the mobile bearing is an uncommon but recognized complication of the OUKP. Patients typically present with severe pain and reduced range of motion of the affected knee. Read More

BMC Musculoskelet Disord 2019 Jan 5;20(1). Epub 2019 Jan 5.

Department of Orthopedic Surgery, Daegu Veterans Hospital, Daegu, South Korea.

Background: The gluteus medius muscle plays a very important role in the stability of the gait, especially in patients with amputation of the lower limbs. Therefore, choosing the appropriate type of approach for hip arthroplasty is very important. Hence, this study aimed to compare the outcomes and complications between the anterolateral approach (ALA) and posterior approach (PA) for hip arthroplasty in patients with contralateral below knee amputation. Read More

Musculoskeletal Care 2019 Jan 4. Epub 2019 Jan 4.

Leidos, San Diego, California, USA.

Purpose: The aims of the present study were: (a) to identify the incidence of osteoarthritis (OA) after a traumatic knee injury; (b) identify the risk of post-traumatic osteoarthritis (PTOA) based on the type of injury; and (c) identify the time from injury to OA diagnosis.

Patients And Methods: The Expeditionary Medical Encounter Database, containing healthcare utilization for all deployment injuries sustained by military service members, was queried for traumatic knee injuries between 2001 and 2016. Subsequent diagnosis of knee OA was identified, defined as PTOA. Read More

Unfallchirurg 2019 Jan;122(1):6-16

Unfallchirurgische Abteilung, Landeskrankenhaus Horn, Spitalgasse 10, 3580, Horn, Österreich.

While fractures around the knee are known to be rare, physicians have encountered a rise in the frequency due to the increased participation of children and adolescents in high-impact sports at a younger age. Even if the treatment of fractures in some cases resembles that in adults, the diagnostics and treatment in childhood and adolescence require a hígh level of experience in order avoid possible sequelae and to enable early recognition. Thorough diagnostics using clinical and imaging investigations as well as a precise weighing up of the treatment are essential to minimize differences in leg length and axial malpositioning of the leg. Read More

Afr Health Sci 2018 Jun;18(2):321-332

Department of Surgery, College of Medicine and Health Sciences, UAE University,17666 Al-Ain, United Arab Emirates.

Aim: We aimed to review the biomechanics of lower limb injuries caused by frontal-impact road traffic collisions.

Methods: In this narrative review, we identified articles through pubmed, Scopus and Science Direct search engines for the period of 1990-2014. Search terms included: "biomechanics", "lower limb injury", "hip injury", "knee injury", "foot and ankle injury" and "frontal impact collision". Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2018 Oct;32(10):1255-1260

Department of Orthopaedics, Rehabilitation Hospital of the National Research Center for Rehabilitation Technical Aids, Beijing, 100176, P.R.China;Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, Beijing, 100176, P.R.China;Key Laboratory of Rehabilitation Aids Technology and System of the Ministry of Civil Affairs, Beijing, 100176, P.R.China.

Objective: To summarize the main methods and comprehensive effects of limited surgery combined with external fixation for the treatment of flail foot with sensory disorder of spina bifida sequela in adult.

Method: The clinical data of 22 cases (30 feet) of the adult spina bifida sequela who suffered from flail foot with sensory disorder and treated by limited surgery combined with external fixation were retrospectively analysed between January 2005 and December 2015. There were 14 males and 8 females with an age of 8-38 years (mean, 21. Read More

J Orthop Sports Phys Ther 2019 Jan;49(1):36

An 18-year-old military cadet presented to a direct-access physical therapy clinic 3 days after sustaining a lateral patellar dislocation that self-reduced with extension of the knee. Suspecting a loose body, the physical therapist ordered radiographs, which did not demonstrate any associated fractures. Rapid disposition was required to determine her potential to participate in mandatory Army field training, so the patient was referred to an orthopaedic surgeon, who ordered magnetic resonance imaging to assess for intra-articular pathology. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2018 Dec;32(12):1518-1523

Department of Orthopedics, General Hospital of Chinese PLA, Beijing, 100853,

Objective: To investigate the effect of accuracy of phase 3 Oxford prosthesis positioning on short-term effectiveness of unicompartmental knee arthroplasty (UKA).

Methods: The clinical data of 26 patients (26 knees) who were treated with UKA between September 2015 and November 2015 was retrospectively analyzed. The single-peg Oxford prosthesis was implanted in 15 patients (single-peg group), and twin-peg Oxford prosthesis was implanted in 11 patients (twin-peg group). Read More

Arthroplast Today 2018 Dec 24;4(4):407-410. Epub 2018 Oct 24.

I orthopedic and traumatological Clinic, AOUP, Pisa, Pisa, Italy.

Anterior dislocation of a prosthetic knee is a rare event. Only few episodes have been described in the past and have never been linked with neurovascular injury. This could lead orthopaedic surgeons to focus on the implant instability factors and underrate other complications. Read More

J Phys Ther Sci 2018 Dec 21;30(12):1458-1461. Epub 2018 Nov 21.

Department of Physical Therapy, Ibaraki Prefectural University of Health Sciences: 4669-2 Ami-machi Ami, Inashiki-gun, Ibaraki 300-0394, Japan.

[Purpose] This case study describes the reacquisition of knee joint function in a patient with Down syndrome after surgery for patellar dislocation using external focus training. [Participant and Methods] The patient was a female aged 24 years with Down syndrome and a low Intelligence Quotient, who suffered from right patellar dislocation. The range of motion in the right knee while walking was 2 to 23 degrees at 3 weeks after surgery. Read More

Oper Orthop Traumatol 2019 Feb 18;31(1):20-35. Epub 2018 Dec 18.

Sektion Sporttraumatologie und arthroskopische Chirurgie, BG Unfallklinik Tübingen, Schnarrenbergstr. 95, 72076, Tübingen, Deutschland.

Objective: Simultaneous arthroscopic reconstruction of the anterior and/or posterior cruciate ligament (ACL/PCL) using the GraftLink® system (Arthrex) to obtain stable treatment and good functional results. The transplant is protected by the safety belt like biomechanical GraftLink® principle, which is used to secure the intraoperatively obtained stability in the long term.

Indications: ACL, PCL, or combined cruciate ligament rupture, especially multiligament injuries. Read More

Oper Orthop Traumatol 2019 Feb 18;31(1):3-11. Epub 2018 Dec 18.

Abteilung für Sportorthopädie, Klinikum rechts der Isar, TU München, Ismaninger Str. 22, 81675, München, Deutschland.

Objective: Anatomical reduction of bony avulsions of the posterior cruciate ligament (PCL) by a suture-bridge™ (Arthrex, Naples, FL, USA) technique to restore posterior knee stability.

Indications: Acute bony tibial avulsions of the PCL and multifragmentary fractures.

Contraindications: Chronic condition of avulsion fractures or posterior instability, advanced knee osteoarthritis, high-grade soft tissue injury, infection. Read More

Knee 2019 Jan 14;26(1):267-272. Epub 2018 Dec 14.

The University of Tokyo Hospital, Orthopaedic surgery, Tokyo, Japan.

Meniscal bearing dislocation while rolling over in sleep has never been reported in Oxford unicompartmental knee arthroplasty (UKA). This study reports two cases of meniscal bearing dislocation into the intercondylar ridge while rolling over in sleep. In the case of one patient, closed reduction of the bearing was performed, and the use of a knee brace was effective in preventing re-dislocation. Read More

Arch Orthop Trauma Surg 2018 Dec 13. Epub 2018 Dec 13.

University Clinic for Hand, Hip and Knee Surgery, Hospital Unit West, Building 8, Entrance N, 1st floor, Laegaardvej 12, 7500, Holstebro, Denmark.

Introduction: Dislocation is a serious and common complication and a great concern with the use of total hip arthroplasty (THA) when treating displaced femoral neck fracture (FNF). Dual-mobility (DM) THA might reduce the dislocation risk. We aim to report the dislocation and revision rate of primary DM THA in patients with displaced FNF. Read More

J Knee Surg 2018 Dec 13. Epub 2018 Dec 13.

Department of Orthopedic Surgery, Mount Carmel Health System, Columbus, Ohio.

Patellar dislocation is a relatively common knee injury and can be challenging to diagnose. We describe an arthroscopic finding we noted in recurrent patellar dislocation. Arthroscopic photos were evaluated from 50 knees with a history patellar dislocation and 100 control patients. Read More

Skeletal Radiol 2018 Dec 12. Epub 2018 Dec 12.

Department of Radiology, The Royal National Orthopaedic Hospital NHS Trust, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK.

The patellofemoral joint is a complex joint that relies on both bone and soft tissues for its stability. Dysfunction of the patellofemoral joint, whether pain or instability, is a common cause of medial consultation. Thorough clinical and imaging assessment is important for managing these patients, who may require a combination of a bony and soft tissue surgical procedure. Read More

Knee 2018 Dec 30;25(6):1206-1213. Epub 2018 Jun 30.

Department of Orthopaedic Surgery, Virgen del Rocío Hospital, Seville, Spain.

Background: This research was undertaken to evaluate Oxford Domed Lateral unicompartmental knee replacement (UKR) survival and clinical and radiological outcomes. The study also considered the influence of body mass index (BMI) on results and proposed contralateral healthy knee anatomic femorotibial angle (AFTA) as a predictor of postoperative knee alignment.

Methods: A retrospective evaluation of 41 primary Oxford Domed Lateral UKR performed in 41 patients in the same institution was undertaken on a patient group comprising of 10 men and 31 women with a mean age of 63 years (range: 38-81 years). Read More

Unfallchirurg 2019 Jan;122(1):22-32

AUVA Traumazentrum Wien, Standort Meidling, Kundratstr. 37, 1120, Wien, Österreich.

Dislocation of the patella is one of the most common knee injuries in childhood and adolescence. After detailed clinical and radiological clarification, conservative functional treatment with special orthotic devices is most commonly applied in patients with a primary dislocation without concomitant injuries; however, the redislocation rate after conservative treatment has been reported in the literature to be between 35% and 70%, depending on the risk factors present. Therefore, numerous surgical treatment options exist which are sometimes again associated with high redislocation rates and others can lead to early arthrosis of the patellofemoral joint when used indiscriminately. Read More

Arthrosc Tech 2018 Nov 15;7(11):e1157-e1165. Epub 2018 Oct 15.

Knee Surgery-Arthroscopy and Sports Injuries Unit, Orthopedic Department, Faculty of Medicine, Mansoura University Hospital, Mansoura, Egypt.

There is no ideal surgical technique for the treatment of acromioclavicular (AC) dislocations. Reconstruction of the coracoclavicular ligaments (CCLs) for the treatment of AC dislocations is evolving. Many techniques for CCL reconstruction have been described. Read More

J Arthroplasty 2019 Mar 20;34(3):577-585. Epub 2018 Nov 20.

Department of Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, People's Republic of China.

Background: There remains a controversy regarding the risks in subsequent total joint arthroplasty (TJA) with and without previous bariatric surgery (BS). We performed a meta-analysis based on the current evidence-based study to determine the influences of prior BS on the short-term and long-term outcomes following TJA.

Methods: From the inception to July 2018, the EMBASE, PubMed, Web of Science, and Cochrane Library electronic databases were searched for all relevant English language trials. Read More

J Med Imaging Radiat Oncol 2019 Feb 3;63(1):54-60. Epub 2018 Dec 3.

Department of Radiology, The Royal Melbourne Hospital, The University of Melbourne, Melbourne, Victoria, Australia.

Introduction: Common peroneal nerve (CPN) injury occurs in 10-40% of patients following knee dislocation. Is magnetic resonance imaging (MRI) using routine knee protocols able to adequately evaluate CPN injury and predict long-term outcome?

Methods: Trauma patients presenting for knee MRI at a single public hospital, between July 2007 and May 2017, were retrospectively identified using radiology and orthopaedic databases. Medical records were retrieved for clinical scores. Read More

Clin Orthop Surg 2018 Dec 21;10(4):420-426. Epub 2018 Nov 21.

Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun, Korea.

Background: The tibial tuberosity-trochlear groove (TT-TG) distance is used to determine the necessity of tibial tubercle osteotomy. We conducted this study to determine the extent to which each of the tibial tuberosity lateralization, trochlear groove medialization, and knee rotation angle affects the TT-TG distance in both normal and patella dislocated patients and thereby scrutinize the rationale for tuberosity transfer based on the TT-TG distance.

Methods: Retrospective analysis of rotational profile computed tomography was done for patella dislocated and control group patients. Read More

Knee 2019 Jan 29;26(1):273-278. Epub 2018 Nov 29.

Houston Methodist Othopedics & Sports Medicine, Houston, TX, United States of America. Electronic address:

Nail-patella syndrome (NPS) or hereditary onycho-osteodyaplasia is a rare genetic condition involving a mutation in the LMX1B gene affecting nails, elbows, knees, and pelvis. Due to the regulatory functions of the gene in many developmental processes through the body, patients with NPS experience wide-ranging musculoskeletal problems including patellar instability, fingernail anomalies, iliac exostoses/horns, and elbow abnormalities. The patellar changes often involve aplasia, hypoplasia, and chronic dislocation. Read More

Knee 2019 Jan 28;26(1):20-25. Epub 2018 Nov 28.

Dept. of Orthopedic Surgery, Clinical Orthopedic Research Hvidovre (CORH), Copenhagen University Hospital Hvidovre, Denmark. Electronic address:

Background: To evaluate the trends in treatment of patellar dislocation in the Danish population as a whole from 1996 to 2014 and evaluate the incidence of persistent morbidity after Medial Patellofemoral Ligament Reconstruction (MPFL-R).

Methods: This epidemiological study was performed by retrospectively searching the Danish National Patients Registry from 1996 to 2014. The study investigated the trends in surgery performed on patients with patellar dislocations and the risk of persistent patellar morbidity (PPM) with an eight-year follow-up. Read More

Knee Surg Sports Traumatol Arthrosc 2018 Nov 29. Epub 2018 Nov 29.

Division of Orthopaedic Surgery, Department Surgery, McMaster University, Hamilton, ON, Canada.

Purpose: The purpose of this study is to report on the global distribution and clinical outcomes of published articles related to trochleoplasty.

Methods: The online databases OVID Medline, OVID EMBASE, and the Cochrane Library were searched for the literature assessing trochleoplasty performed for lateral patellofemoral instability (LPI). Study data were abstracted looking at global trends in the literature, as well as clinical and patient-reported outcomes following this technique. Read More

Knee Surg Sports Traumatol Arthrosc 2018 Nov 27. Epub 2018 Nov 27.

FIFA Medical Center of Excellence, Orthopaedics Surgery and Sports Medicine Department, Croix Rousse Hospital, Civil Hospices of Lyon, 103 Boulevard de la Croix Rousse, 69004, Lyon, France.

Purpose: Reconstruction of the medial patellofemoral ligament (MPFL) has become the gold standard for the treatment of the recurrent patellar dislocation (RPD). Lateral retinacular release can be performed in association with MPFL reconstruction, but the effect on outcomes is not clear. To evaluate the effect of lateral release on outcomes following MPFL reconstruction is the aim of this study. Read More

Knee Surg Sports Traumatol Arthrosc 2018 Nov 26. Epub 2018 Nov 26.

Centre Hospitalier de Luxembourg, 76 Rue d'Eich, 1460, Luxembourg, Luxembourg.

Purpose: Traumatic posterior instability of the sternoclavicular joint is a potentially life-threatening injury. In contrast to the low incidence there is a plethora of different strategies to treat this lesion. It was the objective of this retrospective analysis to evaluate and further develop current strategies. Read More

Injury 2018 Nov 13. Epub 2018 Nov 13.

Department of Magnetic Resonance imaging, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, PR China. Electronic address:

Introduction: Acute lateral patellar dislocation is a very common condition in orthopedics, especially among adolescents and physically active patients. To evaluate distinct medial patellofemoral ligament (MPFL) injury patterns and the associated knee pathology after acute lateral patellar dislocation (ALPD) using magnetic resonance imaging (MRI) studies, which is essential for the development of treatment protocols.

Materials And Methods: MRI images of 74 ALPD patients were taken between January 2015 to December 2016. Read More

Acta Orthop Belg 2018 Jun;84(2):179-183

The objective of this study was to evaluate the contribution of the medial retinaculum to the stability of the patella, for several angles of knee flexion. For six cadaveric knees, the patella and patella retinaculum were exposed, and the force required to dislocate the patella laterally by 5 mm was measured, in 0, 45 and 90 degrees of knee flexion, preserving and dissecting the medial retinaculum. Wilcoxon singed rank test (SPSS, version 23, Chicago, USA) was used for data analysis. Read More

Int J Surg Case Rep 2018 13;53:303-308. Epub 2018 Nov 13.

Konyang University, College of Medicine, Department of Orthopaedic Surgery, Konyang University, 158 Gwanjeodong-ro, Seo-gu, Daejeon, Republic of Korea. Electronic address:

Introduction: Late presentation of congenital patella dislocation (CPD) with advanced osteoarthritis is very rare. Total knee arthroplasty (TKA) provides a valid treatment option for adults with CPD who have absence of the femoral sulcus and associated osteoarthritis. TKA for knee with CPD demand more precise technique because TKA correct the unusual pathologies for primary osteoarthritis, eg, tibial external rotation, absence of femoral groove, patella hypoplasia, and realignment of extensor mechanism. Read More

J Clin Orthop Trauma 2018 Oct-Dec;9(4):281-284. Epub 2017 Sep 8.

Center for Hip and Knee Replacement, Department of Orthopaedic Surgery, New York Presbyterian Hospital, Columbia University Medical Center, 622 West 168th Street, PH-1147, New York, NY 10032, USA.

Background: Displaced femoral neck fractures (DFNF) in the elderly can be treated with hemiarthroplasty or total hip arthroplasty (THA). One concern with utilizing THA in this setting is post-operative dislocation. The purposes of this study were to determine the incidence of hip dislocation following THA for DFNF and to identify risk factors for dislocation. Read More

Am J Sports Med 2018 Dec 14;46(14):3400-3406. Epub 2018 Nov 14.

Division of Orthopaedics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.

Background:: Abnormalities in the trochlea-patella-tibia relationship have been shown to be risk factors for recurrent patellofemoral instability, although no current measurements quantify patellar containment in the trochlea. Standard measurements, such as tibial tubercle-trochlear groove (TT-TG) distance, do not account for the containment of the patella by the trochlea. Our goal was to develop a measurement to assess how well the trochlea contained the extensor mechanism. Read More