Advantages of Simultaneous Cementless Bilateral Unicondylar Knee Arthroplasty Compared to Staged Surgery.

Background: Unicondylar knee arthroplasty (UKA) is an effective procedure, which reduces pain, increases range of motion, and improves function. UKA could be performed simultaneously or in staged sessions. This study aimed to compare bilateral cementless UKA performed simultaneously and in staged sessions in terms of complications, hemoglobin levels, transfusions, and functional outcomes. Methods: Patients undergoing bilateral UKA for symptomatic medial compartment osteoarthritis were retrospectively analyzed. Of the 73 patients who met the inclusion criteria, 40 underwent surgery simultaneously and 33 underwent surgery in separate sessions. Operative time, length of hospital stay, change in hemoglobin, need for blood transfusion, complications, and functional outcomes were assessed. Results: There was no statistically significant difference between the two groups in demographic data. Simultaneously operated patients had a significantly shorter hospital stay and shorter operative time. Statistically significant improvements in clinical scores were noted in both groups. The degree of improvement in functional scores did not differ between the groups. There was no difference between the two groups in terms of complication rates, but the number of periprosthetic tibial fractures was higher in the simultaneous group. Conclusions: Simultaneous bilateral cementless UKA was more advantageous in terms of cumulative hospital stay and total operation time with similar clinical results when compared to a staged procedure. While the overall complication rate was similar, the rate of periprosthetic fractures was 5% in the simultaneous group.

Comparison of dermatotraction and negative pressure wound therapy for closure of cruris fasciotomy after 2023 Kahramanmaras earthquake.

OBJECTIVES: This study aims to evaluate the results of patients who underwent cruris fasciotomy for acute compartment syndrome (ACS) after the 2023 Kahramanmaras earthquake and used subcuticular polydioxanone (PDS) method or negative pressure wound therapy (NPWT) with vacuum-assisted closure (VAC) for fasciotomy follow-up and closure of the defect. PATIENTS AND METHODS: Between March 2023 and April 2023, a total of 52 patients (31 males, 21 females; mean age: 29±14.8 years; range, 5 to 74 years) were retrospectively analyzed. The patients were divided into two groups as the dermatotraction (PDS) group (Group 1, n=30), and the VAC group (Group 2, n=22). Data including demographic, clinical, and operative data such as fasciotomy closure time, graft need, and infection rate were recorded. RESULTS: More grafts were needed to close the fasciotomy in patients followed with VAC. The mean closure time of the fasciotomy was 25.9±3.8 days in the PDS group and 27.3±3.5 days in the VAC group, indicating no significant difference between the groups (p=0.738). There was no significant difference in the rate of wound infection between the two groups (p=0.482). CONCLUSION: Our study results suggest that more grafts are needed to close the fasciotomy in patients followed with VAC; however, it seems to increase the cost of the treatment.

Percutaneous Partial Tenotomy of ITB for Secondary Genu Valgum Developing After Total Hip Arthroplasty in Patients with Crowe Type-Iv Dysplasia.

Background: The aim of this study was to make a prospective evaluation of the effect on the clinical results of percutaneous iliotibial band partial tenotomy (PITP) applied to cases of genu valgum which developed following total hip prosthesis for Crowe Type IV dysplastic hip. Methods: The study consists of 33 patients with unilateral crowe type IV dysplastic hip osteoarthritis who developed iatrogenic ipsilateral genu valgum after total hip arthroplasty. The patients were randomly separated into 2 groups of Group 1 (n = 16) where percutaneous iliotibial band tricut partial tenotomy was applied (PITP) and Group 2 (n = 17) where no treatment was applied. Pre and postoperative measurements were taken of the Harris Hip Score (HHS), the Lysholm-Gilquist Knee Score (LGS), Visual Analog Score (VAS), ipsilateral knee Q angle, and the spina ilica anterior superior medial malleolus distance (SIAS-MM). Results: In both Group 1 and Group 2, a statistically significant increase was seen in the values of SIAS-MM (p < 0.001), Q angle (p < 0.001) and HSS (p < 0.001) from preoperative to postoperative. A statistically significant decrease was determined in LGS (p < 0.001, p < 0.003). In Group 1, a statistically significant decrease in the Q angle was determined at the final follow-up after PITP compared to the early postoperative period (p < 0.001). The HSS values for Group 1 were statistically significantly high in the early postoperative period and at the final follow-up (p < 0.001). Conclusion: PITP application improves knee and hip clinical scores in the early postoperative period and hip clinical scores in the mid-term follow-up.

The painful joint after COVID-19 treatment: A study on joint osteonecrosis following COVID-19-related corticosteroid use.

OBJECTIVES: This study aims to evaluate the incidence of osteonecrosis (ONC), with a special focus on ONC of the femoral head (ONFH), in novel coronavirus disease 2019 (COVID-19) patients two years after the pandemic. PATIENTS AND METHODS: This prospective study included COVID-19 patients who were admitted to our center between March 2020 and June 2020. A total of 472 patients (289 males, 183 females; mean age: 42.3±12.0 years; range, 18 to 60 years) were arranged in a list according to their date and time of admission and, then, divided into two groups: those not receiving corticosteroid (CS) treatment (Group 1, n=236) and those receiving CS treatment (Group 2, n=236). The patients were evaluated for joint pain based on X-rays and magnetic resonance imaging scans, and the patients were routinely followed. For each patient in Group 2, additional data regarding CS use were recorded. The possible relationship between ONC and risk factors was analyzed. RESULTS: Both groups were similar in terms of age and sex. Group 2 had a significantly longer hospitalization period. A significant increase in the number of painful joints was observed in Group 2. At two years, 5.1% of the patients in Group 1 complained of at least one painful joint compared to 11.9% of patients in Group 2. Eight patients from Group 2 developed ONC. CONCLUSION: The incidence of ONC after CS therapy in COVID-19 patients is on the rise. At two years, 5% of patients receiving various doses of CSs may develop ONC. Residual joint pain is common even after recovering from the virus. No relationship is evident between the duration of treatment, cumulative dosage of medication, maximum one-day dosage received, and the presence of ONC.

Tip-neck distance ratio as a novel predictor for failure in cephalomedullary nailing of unstable trochanteric fractures (UTF).

OBJECTIVES: Intertrochanteric femur fractures (ITFF) are frequently fixed with proximal femoral nailing (PFN), and a common cause of fixation failure is cut-out of the lag screws. In the literature, many factors have been defined to determine the failure risk, including the tip-apex distance (TAD), calcar-referenced tip-apex distance (CalTAD), the Cleveland zone and Parker's ratio. In this study, a novel technique is described which favors infero-posterior placement of the lag screw and predicts failure risk for PFN. The purpose of this study was to evaluate the tip-neck distance ratio as a factor for the prediction of cut-out after PFN of ITFF. MATERIALS AND METHODS: A retrospective evaluation was made of the data of 125 patients applied with PFN for ITFF between October 2016 and September 2019. The occurrence of mechanical complications was analyzed in relation to age, gender, fracture side, American Society of Anaesthesiologists classification, fracture classification, reduction quality, bone quality, Cleveland zone, Parker's ratio, TAD, CalTAD and the TNDR. RESULTS: A total of 125 patients, including 16 with mechanical complications, were suitable for full analysis. In the univariate analysis, reduction quality (p = 0.003), the TAD (p = 0.048) and the TNDR (p = 0.030) were statistically associated with mechanical complications (p < 0.05). In the multivariate analysis, good quality of reduction reduced risk of mechanical failure (p = 0.011) and the TNDR (p < 0.001) indicated that these were two independent factors affecting mechanical complications. CONCLUSION: The results of this study provide clinical evidence that the TNDR is a predictor for cut-out risk. Placement of the lag screw posterior and inferior reduces the risk of mechanical complications. LEVEL OF EVIDENCE: Level 3.

Segmental Defect-Bridging Intramedullary Knee Arthrodesis for Osseous Hydatidosis of the Distal Femur: A Case Report.

Hydatid cyst is a condition endemic to many parts of the world and is mainly caused by Echinococcus granulosus ( E. granulosus). It rarely affects the bone tissue, with the most commonly impacted sites being the vertebrae and the pelvis. Preoperative diagnosis is challenging and very rarely possible because of its similarities with other pathologies. In this report, we present the case of a 64-year-old patient with osseous hydatidosis of a pathological distal femur fracture. The fracture pattern was not recognized on the initial operation and multiple serial debridements were required to control the disease, leading to a large bone defect and a weakened extensor mechanism. A knee arthrodesis with a segmental defect-bridging intramedullary system was eventually performed, which led to satisfying outcomes. Osseous hydatidosis very often presents itself as a pathological fracture and is difficult to diagnose preoperatively with plain radiographs. Orthopedic surgeons are advised to maintain a high index of suspicion and to test for this disease when cystic bone lesions are detected at fracture sites, especially in patients from endemic regions.

Does Body Mass Index Cause a Clinical Difference in Simultaneous Bilateral and Unilateral Knee Arthroplasty?

This study aims to investigate clinical and functional factors in patients undergoing unilateral and simultaneous bilateral total knee arthroplasty (TKA) who were classified into subgroups of nonobese, obese, and morbidly obese, and to determine perioperative and postoperative complications. We conducted an evaluation of 489 nonobese, obese, and morbidly obese patients who underwent TKA due to primary knee osteoarthritis between January 2006 and December 2013. The arthroplasties were performed by three different surgeons. Patients who underwent unilateral (group 1) or simultaneous bilateral (group 2) TKAs were divided into subgroups in accordance with BMI levels, that is, (a) nonobese (BMI < 30 kg/m2), (b) obese (BMI = 30-34.9 kg/m2), and (c) morbidly obese (BMI ≥35 kg/m2). Clinical and functional assessments were performed using Knee Society Scores (KSSs), the Western Ontario and McMaster Universities Osteoarthritis index (WOMAC), and range of motion (ROM) values. Perioperative and early postoperative complications were assessed. The mean follow-up period was 46.65 months (minimum: 24 months; maximum: 84 months). There were no significant differences between the patients undergoing unilateral or simultaneous bilateral TKA procedures regarding postoperative ROM, WOMAC indices, and KSSs (p > 0.05), except for morbidly obese patients. Most intraoperative and early postoperative complications occurred in the morbidly obese group, especially in those undergoing simultaneous bilateral TKA procedures (p < 0.001). Unilateral and simultaneous bilateral TKA procedures showed no differences regarding ROM, clinical scores, and perioperative and early postoperative complications in nonobese and obese patients. A moderate increase was detected in complication rates in the unilateral TKA morbidly obese patients (group 1c); however, morbidly obese patients constituted the major risk group in simultaneous bilateral TKA patients (group 2c) regarding clinical scores (lower WOMAC scores and KSSs) and the development of complications.

Determination of structural femoral head allograft viability and integrity with a novel diagnostic tool: SPECT/CT. A preliminary study.

OBJECTIVE: To evaluate the viability and integrity of fresh frozen bulk femoral head allografts obtained from the institutional bone bank that were used to reconstruct severe acetabular defects and to validate the SPECT/CT method which gives both anatomical and functional data for this purpose. METHODS: We retrospectively reviewed 9 patients (6 female, 3 male; mean age 63.6 years). Preoperative and postoperative leg lengths, existence of the Trendelenburg sign, range of motion of the hip, visual analogue score (VAS), Harris Hip Score (HHS) and any complication were assesed at each follow-up. Radiographically, position of the cup, signs of loosening or migration, and union of the graft were all determined. At the latest follow-up, patients were evaluated with hybrid SPECT/CT. RESULTS: The average duration of follow-up was 38.1 months (24-50 months). The overall mean HHS and VAS scores were significantly improved (p<0.05). When hybrid SPECT/CT results were evaluated, the vascular phase of scintigraphy showed hyperaemia of the graft and the bone phase of scintigraphy showed normal or increased radiotracer uptake in the graft site in 7 patients. SPECT/CT images were used to determine the exact localisation of osteoblastic activity. 1 patient with minor resorption of the graft without clinical symptoms revealed mild osteoblastic activity. The patient who had no activity in the graft site was rerevised because of infection. CONCLUSIONS: Institutional bank allografts are still excellent options for treating large acetabular defects in revision total hip arthroplasty where trabecular metals are not available or in common use. The Hybrid SPECT/CT method is a reliable, noninvasive method for evaluating both the integrity and viability of a bulk graft in 3-D.

How do different designs of femoral stem affect total hip arthroplasty applied to Crowe type III and type IV dysplastic hips.

PURPOSE: A comparison was made of the clinical and radiological results of cylindrical fully porous-coated femoral stems (Group A) and Zweymüller-type femoral stems (Group B) used for the treatment of hip osteoathrosis, secondary to Crowe III and IV dysplasia, with total hip arthroplasty combined with femoral transverse shortening osteotomy. METHOD: This study is a retrospective evaluation of 86 hips in 50 patients. Group A comprised of 43 hips and Group B comprised of 43 hips. During final follow-up evaluation, patients were clinically assessed with Harris Hip Score (HHS), Merle d'Aubigne-Postel scale (MAP), and SF-36 scale. For radiological examination the Gulman THA score was used. Femoral osteotomy union, osteolysis around the components and component migration were also recorded and evaluated. RESULTS: In Group B, nonunion of the osteotomy site was found in 18.6% and delayed union in 20.9% of the hips. In Group A, delayed union was found in 7% of the hips. Patients' mean daily walking distance was found to be lower in Group A when compared to Group B. When the postoperative clinical HSS, and MAP and the radiological Gulman scores were compared, no statistically significant differences (p = 0.275) were found. CONCLUSIONS: Patients with hip osteoarthritis secondary to Crowe III and IV dysplasia, who were treated with THA and transverse osteotomy showed a higher incidence of osteotomy complications when the Zweymüller femoral stem was used. However, these complications did not affect clinical outcomes.

Minimally invasive percutaneous plate osteosynthesis does not increase complication rates in extra-articular distal tibial fractures.

BACKGROUND: Selection of a treatment method in cases of unstable, nonarticular distal tibial fractures is still a matter of discussion. Intramedullary nailing, which is a "gold standard" for tibial shaft fractures, does not always work for this specific transition area between diaphysis and metaphysis. Instead, new minimally invasive techniques with special implants are popular. AIMS: To determine the functional and radiological results of distal tibial fractures treated with minimally invasive percutaneous plate osteosynthesis (MIPPO) technique. STUDY DESIGN: Retrospective cohort analysis. METHODS: Thirty distal tibial fractures treated with MIPPO method, between January 2006 and December 2010, were evaluated retrospectively. All patients were classified according to AO/OTA classification. Period of hospital stay, time of fracture union, time to allow full weight bearing, early and late complications were inquired. Functional outcomes were assessed by AOFAS scores. RESULTS: There were 13 male and 17 female patients with an average age of 44.26 (range, 22-77 years). One superficial infection and one malunion were observed. Two patients were revised for the loss of reduction and healed uneventfully. According to the AO/OTA classification, 23 patients were 43-A1 (76.6%), 3 were 43-A2 (10%) and 4 were 43-A3 (13.3%). Post-operative mean stay of patients at the hospital was 2.6 ± 1.42 days (range, 1-7 days). Mean full weight-bearing period of the patients was found out as 13.16 ± 2.6 weeks (range, 10-22 weeks). The mean period of union of fracture for patients was found out as 19.8 ± 2.99 weeks (range, 16-34 weeks). CONCLUSION: Treatment of distal tibial fractures with MIPPO method provides a successful treatment strategy as long as used as per the technique, and it respects and does not harm soft tissues which allows early callus formation and rapid healing that enable the patient to walk as early as possible after the operation. The overall clinical and functional outcome is still good despite minor complications.

The effect of the Tscherne injury pattern on the outcome of operatively treated Lisfranc fracture dislocations.

BACKGROUND: Lisfranc fracture dislocations cause severe tarso-metatarsal malalignment. The research question of this study was to evaluate the severity of the soft tissue injury on the final clinical outcome and compare that with the effect of various determinants on the disability in daily living activities after open reduction and internal fixation of a Lisfranc injury. METHODS: This study consisted of a retrospective analysis of patients with Lisfranc fracture dislocations who were treated by open reduction and internal fixation beween 2004 and 2009. Evaluation focused mainly on the severity of the soft tissue injury, age, fracture classification, time to operation, posttraumatic osteoarthritis, and the results were compared with American Foot and Ankle Society (AOFAS) scores, and Foot and Ankle Disability Index (FADI). Eight patients had Tscherne Grade 1, 13 had Grade 2, and 11 had Grade 3 soft tissue injuries. Myerson classification revealed 11 type A, 8 type B and 13 type C fractures. Six patients' operations were delayed beyond 8h. RESULTS: Of the 38 patients treated in the study period, 32 patients (11 female, 21 male; <30 y-old: 14, >30 y-old: 18) were available for complete follow-up (average, 55.5 months). The comparison of treatment results revealed that those patients with high grade soft tissue injuries had lower AOFAS and FADI scores (43.8±15.9, 53.7±9.4, respectively) when compared to Tscherne Grade 1 injuries (82.8±6.1, 109±13.9, respectively) (p<0.001). The overall negative impact of the severity of soft tissue injury on functional outcomes had similar significance with regard to post-traumatic osteoarthritis, and fracture type. There was also a statistically significant difference between outcome measures and post-reduction quality (p=0.002). Patient age (p=0.9) and delayed surgery (p=0.5) had no statistically significant effect on the final outcome. CONCLUSIONS: Satisfactory results can be achieved with open reduction for Lisfranc injuries. However, despite this treatment, both the severity of the soft tissue injury and non-anatomic reduction are negative prognostic factors in the treatment of Lisfranc fracture dislocations.

What happens at the adjacent knee joint after total hip arthroplasty of Crowe type III and IV dysplastic hips?

We prospectively evaluated 30 hips of 22 patients who had normal knees with a mean age of 53.4 years (range, 38-72 years). In the early postoperative period, genu valgum deformity was observed in all knees. Of 22 patients, 17 complained of severe pain owing to strain in the medial collateral ligament and iliotibial tract. Postoperatively, the ipsilateral extremities of the patients were extended by a mean of 16.5 mm (8-25 mm). Q angles of the patients increased by a mean of 4.4° ± 2.5° (P < .001). Although the Harris hip scores were improved (40.7-87.8 points), postoperative Lysholm-Gillquist knee scores were significantly reduced (92-76 points, P < .001). Reduction of displaced hips into the anatomical hip center and lengthening the extremity despite shortening procedure may lead to strain at the knee joint iatrogenically, particularly with the mechanical effect of tensor fascia lata, which results with changes in the knee biomechanics.

[Ultrasonographic measurement of the effect of rotatory cuff repair with coracoacromial ligament transfer on humeral head migration]. / Korakoakromiyal bag transferiyle rotator kilif tamirinin humerus basi migrasyonuna etkisinin ultrasonografi ile ölçülmesi.

OBJECTIVES: In this study we evaluated whether ligament transfer caused humeral head migration in patients whose massive rotator cuff ruptures were repaired with total or partial coracoacromial ligament (CAL) transfer. The necessity of harvesting the ligament totally or partially in massive rotator cuff repairs was investigated with respect to the effect of the excision and transfer of the CAL on humeral head migration. PATIENTS AND METHODS: Forty patients (12 males, 28 females; mean age 54.3 years; range 39 to 66 years) operated on with free CAL transfer for massive rotator cuff rupture between January 2003 and June 2008 were included in the study. The operations were performed by obtaining total CAL grafts in the first 13 cases and partial CAL grafts in the other 27 cases. Mean follow-up period was 26.5 months (range 12 to 52 months). Twenty-nine patients had the rupture on the right side and 11 patients had the rupture on the left side. In 31 patients the dominant side was affected. RESULTS: In the early postoperative period (3-6 weeks) adequate acromiohumeral (AH) distance could not be obtained in patients underwent total excision and transfer of CAL (mean 9 mm; range 8.6 to 9.2 mm). Humeral migration was found to be regressed three months after active motion and recovery of normal cuff strength. During the follow-up the mean AH distance was found to be 10 mm (range 8 to 10.5 mm). Humeral head migration was not detected by ultrasonography in the early postoperative period in patients who underwent repair with partial CAL transfer. CONCLUSION: Functionally good results have been obtained in the rotatory cuff repairs performed by CAL excision and transfer. Although humeral head migration was not detected ultrasonographically in the patients who had partial CAL excision and transfer at the early postoperative period, we observed a decrease in the AH distance in the patients who had total CAL excision and transfer. This migration was regressed and the cuff strength was recovered after intense rehabilitation with strengthening exercises and active motion.

Clinical experience with a reverse-flow anterolateral thigh perforator flap for the reconstruction of soft-tissue defects of the knee and proximal lower leg.

BACKGROUND: Soft-tissue defects in the knee region are usually complex and require adequate reconstruction with flaps. The aim of this article is to present the authors' experience using the reverse-flow anterolateral thigh perforator flap for the reconstruction of a variety of soft-tissue defects around the knee including the upper third of the leg. METHODS: A total of 17 reverse-flow anterolateral thigh perforator flaps were used for reconstruction of soft-tissue defects around the knee and the upper third of the leg between December 2006 and December 2010. The ages of patients ranged from 26 to 82 years (mean, 64.3). Defect sizes ranged from 6×8 to 10×14 cm. The application of the reverse-flow anterolateral thigh perforator flaps in relation to the variable arterial anatomy was described. RESULTS: The dimensions of the largest flap used for reconstruction were 10×16 cm. The perforators were musculocutaneous in 14 patients and septocutaneous in three patients. The maximal pedicle length was 28 cm. All of the flaps survived. Only two flaps developed partial skin necrosis at the distal end. Good aesthetic and functional results with adequate range of motion were achieved in all cases. CONCLUSION: Despite a variable vascular anatomy that can be challenging for the surgeon, reverse-flow anterolateral thigh perforator flap is a safe and reliable method for reconstruction of the defects around the knee and even the upper third of the leg.

Intra-articular epithelioid sarcoma showing mixed classic and proximal-type features: report of 2 cases, with immunohistochemical and molecular cytogenetic INI-1 study.

Epithelioid sarcoma, a rare sarcoma with epithelial differentiation, most often occurs in the distal extremities; however, it may occur in essentially any location. With the recent recognition that the loss of expression of the tumor-suppressor gene INI-1 may be associated with epithelioid sarcoma, it has become clear that epithelioid sarcoma may occur in previously unsuspected locations such as bone. Only 2 cases of intra-articular epithelioid sarcoma have been previously reported. We retrieved 2 intra-articular cases coded as epithelioid sarcoma from our archives. Both expressed cytokeratins (AE1/AE3 and OSCAR), CD34, vimentin, and epithelial membrane antigen, and showed complete loss of expression of INI-1. Fluorescence in situ hybridization was performed on formalin-fixed, paraffin-embedded sections by using a laboratory-developed dual-color probe containing INI1 (CTD-2511E13 and CTD-2034E7) (22q11.2) (OR) and PANX2 (RPCI3-402G11) (22q13.33) (GR) probes as control. Both cases occurred in a clearly intra-articular location in the knee. Case 1 was that of a 19-year-old man with a long-standing history of pain and limited joint function. This patient was disease free after amputation. Case 2 was that of a 60-year-old woman. Follow-up information available for this patient showed bilateral subpleural metastases. Morphologically, case 1 showed features of proximal-type epithelioid sarcoma, whereas case 2 showed mixed features of classic and proximal-type epithelioid sarcoma. Immunohistochemistry showed complete loss of INI-1 protein in both cases; fluorescence in situ hybridization analyses were negative for INI-1 gene deletion. Herein, we have reported 2 cases of intra-articular epithelioid sarcoma, showing morphologic and immunohistochemical features identical to those of epithelioid sarcoma in conventional locations, including loss of INI-1 expression. Intra-articular epithelioid sarcoma should be distinguished from malignant pigmented villonodular synovitis and from carcinoma metastatic to the synovium. Improved recognition of this rare clinical presentation should allow for better understanding of its unique features.

Crowe Type I and II DDH managed by large diameter metal-on-metal total hip arthroplasty.

Large bearing metal-on-metal (MOM) total hip arthroplasty (THA) may offer advantages relating to stability and range of motion in patients with Crowe Type I and II developmental dysplasia of the hip (DDH). The purpose of this study was to provide an analysis of the clinical and radiological results of MOM THA in this context and compare the results with a cohort of patients treated with metal-on-polyethylene (MOP) bearing surfaces. 75 hips in 65 patients were treated with cementless MOM THA using large femoral heads (36-56 mm). The mean age of the patients was 47.4 years (29 to 59) and 54 were female. A group of 47 hips (41 patients) treated with conventional THA (screwed cup-polyethylene insert-28 mm head) was used for comparison. The study group was followed up for a mean of 62.1 months (32 to 76). No difference was found between the two groups in relation to improvement in Harris hip score (HHS) (43.1 to 90.3 points in the study group, 42.6 to 89.5 points in the control group, p>0.05). Although the preoperative range of motion in all planes were similar in both groups, the large head group demonstrated greater motion in all planes postoperatively, which was significant (all p=0.001). Additionally, there was a significant difference between groups in relation to the necessity for acetabular structural graft (8% and 31.9%, respectively; p=0.001). No major complications or adverse reactions to metal debris (ARMD) were observed in the study group. The results of large head MOM THA in young and active patients with DDH are similar to conventional THA at early follow-up, but the former offers the advantages of secure acetabular fixation without screws, greater range of motion, and lower risk of dislocation.

Cementless total hip arthroplasty for dysplastic and dislocated hips.

OBJECTIVES: We evaluated the clinical and radiographic results of exclusively the same type and standard sized cementless total hip prostheses applied to all dysplastic and dislocated hips. PATIENTS AND METHODS: In this study, we retrospectively reviewed 69 patients' (63 females, 6 males; mean age 45.6 years; range 20 to 72 years) 103 dysplastic or dislocated hips on which cementless total hip arthroplasty was performed between January 1998 and January 2006. The mean duration of follow-up was 7.2 years (range 2.0-10.1 years). Eighteen hips (17%) were type I, 29 hips (28%) were type II, 23 hips (22%) were type III and 33 hips (32%) were type IV according to the Crowe classification. Functional and clinical analyses were performed by Harris hip scores. At the last follow-up, the patients were asked whether they were satisfied or not after the operation. RESULTS: The average preoperative Harris hip score of 39.3 was progressed to 89.5 at the latest follow-ups (p<0.001). Sixty patients (86.9%) reported that they were satisfied after surgery. We observed 41 (39.8%) complications in total, nine of which were intraoperative. There were no findings of symptomatic septic or aseptic loosening at the latest follow-ups. CONCLUSION: Cementless total hip arthroplasty is an effective procedure for developmental dysplastic and dislocated hips.

The effect of total synovectomy in total knee arthroplasty: a prospective randomized controlled study.

PURPOSE: The apparent synovial hypertrophy in some cases of noninflammatory knee osteoarthritis suggests that total synovectomy may provide beneficial inflammatory and pain relief after total knee arthroplasty. The aim of the study was to compare the effect of synovectomy on the postoperative pain, bleeding and functional outcome after surgical treatment of knee osteoarthritis. METHODS: A total of 50 patients with bilateral, non inflammatory, primary knee osteoarthritis were included in the study. Bilateral total knee replacement was performed at the same session. Total synovectomy and total knee arthroplasty (study group) were applied to a randomly selected side, and the total knee arthroplasty alone (as control group) was applied to the contralateral side of the same patient. The overall efficacy of both procedures was assessed postoperatively by determination of blood loss from the drain, pain and functional scores. The Visual Analogue Scale of pain and the Knee Society Knee Score were used to compare the two groups at 3rd, 6th and 12th months, postoperatively. RESULTS: During the postoperative 48 h, the mean blood loss in the study group (with synovectomy) was significantly higher than the control group (P=0.005). However, in the postoperative follow-up time, there was no significant difference in pain relief and in the Knee Society Score between the two groups. CONCLUSION: Performing synovectomy in patients with primary knee osteoarthritis does not seem to have any clinical advantage besides it might increase blood loss and recurrent hemarthrosis postoperatively. Thus, during arthroplasty surgery, it should not be performed routinely.

Cementless total hip arthroplasty with subtrochanteric transverse shortening osteotomy for severely dysplastic or dislocated hips.

Total hip arthroplasty in dislocated developmental hip dysplasia is a complex, technically demanding procedure with high complication rates. Anatomic abnormalities and the young age of the patients influence the results. Restoration of the anatomic hip center often requires shortening of the femur in order to avoid over-stretching of neurovascular structures. We performed cementless total hip arthroplasty with subtrochanteric transverse osteotomy on 44 hips in 31 patients. There were 29 female and 2 male patients. The average age at the time of the operation was 43.2 (range, 22-63 years) and the mean follow up period was 62 months (range, 24-96 months). Harris hip scores improved from 36.2 to 81.2 with good and excellent results in 79.5% of the patients. We stabilized the osteotomy line with low contact plates and screws primarily on 10 hips when rotational stability was in doubt. In the other hips, good initial rotational stability was obtained by the femoral component. However, we observed 5 nonunions in patients whose osteotomies were not stabilized with plates. These patients were later treated successfully with internal fixation and autogenous bone grafting. The osteotomies healed at a mean time of 4 months (range, 2.5-14 months). Postoperatively two dislocations, one acetabular component displacement under the structural bone autograft and two superficial infections were seen. There were no cases of symptomatic loosening, deep infection, or neurovascular injury. Subtrochanteric transverse osteotomy is a versatile, relatively easy and reliable method for shortening the femur when performing cementless total hip arthroplasty in hip dysplasia cases. This technique makes it possible to implant standard sized cementless femoral stems. When necessary, tortional stability may further be augmented with a plate and screws.

Free coracoacromial ligament graft for augmentation of massive rotator cuff tears treated with mini-open repair.

OBJECTIVES: Repair of massive rotator cuff tears is a challenging and complex procedure. The tissue at the end of the torn tendons is often friable and weak, because ruptures are old and degenerated, and thus the ends must be sutured effectively and strongly to achieve a satisfactory outcome. We aimed to evaluate the effectiveness of free total or partial coracoacromial ligament (CAL) graft to protect and augment the repair of massive rotator cuff tears. METHODS: Forty six patients ((32 females, mean age 54.3 years (range 39-66 years)) operated for massive rotator cuff tears between January 2003 and June 2009 were included in the study. Twenty nine of these patients had right-sided tears, and 17 had left-sided tears. Fifteen of the tears were 3-4 cm wide (mean 3.5 cm); 27 were >4 cm wide (mean 4.5 cm), and 4 were >5 cm wide. The mean follow-up period was 26 months (range 16-52 months). Patients were operated with a mini-open technique, and reconstructed after primary repair with 18 total and 28 partial free transfer of the CAL. Patients were evaluated by Constant-Murley score, and the degree of active flexion and abduction. Tendon thickness was measured with ultrasonography during follow-up. RESULTS: Mean preoperative shoulder flexion was 27.5° (range 5-40°), and mean abduction was 22.5° (range 10-30°). Shoulder flexion was significantly greater postoperatively (mean 102.6°, range 70-150°), as was shoulder abduction (mean 96.5°, range 60-150°). Mean preoperative and postoperative Constant-Murley score was 45 and 80, respectively. Surgical complications, particularly recurrence, did not occur in any patient during the follow-up period. The integrity and tendon thickness of the repairs were similar to those of normal tendons at the end of follow-up. CONCLUSION: Augmentation with a free transfer of the coracoacromial ligament provides excellent and promising functional results in the operative treatment of massive rotator cuff tears with a mini-open technique.